Humminbird Fish Finder 937C COMBO User Manual

93x_Man_531370-1_A - vs4.qxd 2/18/2005 11:11 AM Page 1  
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TABLE OF CONTENTS  
900 Series™ Introduction  
1
Key Functions  
29  
How the 900 Series™ Works .................................................................................................................... 1  
Single Beam Sonar ........................................................................................................................................ 1  
DualBeam PLUS™ Sonar ......................................
GPS and Cartography (937c DF Combo and 937
Multi-Media Card (MMC)/SD Slot.......................
Accessory Bus.............................................................
POWER/LIGHT Key .................................................................................................................................... 29  
VIEW Key........................................................................................................................................................ 30  
................................................................................................ 30  
................................................................................................ 30  
................................................................................................. 31  
................................................................................................. 31  
bo models only) .................................................................. 31  
937c Combo models only) .................................................. 31  
37c Combo models only)...................................................... 31  
Installation Overview  
Control Head Installation  
Gimbal Mounting the Control Head .................
In-Dash Mounting the Control Head .................
Connecting the Control Head Power Cable to
32  
................................................................................................. 32  
................................................................................................. 33  
................................................................................................. 33  
31c DF models only)............................................................ 34  
7c Combo models only) ...................................................... 35  
Combo and 937c Combo models only).......................... 36  
ombo models only).............................................................. 36  
mbo and 937c Combo models only) ................................ 37  
................................................................................................. 38  
Transducer Installation  
Transom Transducer Installation ........................
Inside the Hull Transducer Installation .............
Trolling Motor Transducer Installation .............
Test and Finish the Transducer Installation ...
GPS Receiver Installation (937c DF Combo and
Stem Mounting with an Existing 1" - 14 Threa
Access Under Mounting Location .......................
No Access Under Mounting Location ...............
Finish Routing the Cable and Check GPS Rece
nd 937c Combo models only)  
mbo models only)  
38  
39  
................................................................................................ 40  
................................................................................................ 40  
................................................................................................. 41  
d .............................................................................................. 42  
................................................................................................. 43  
................................................................................................. 43  
................................................................................................. 43  
Speed Accessory Installation  
Testing the System Installation  
Getting Started - Using Your 900 Series™  
Powering Up the Control Head ..........................
What’s on the Sonar Display ...............................
Understanding Sonar History ..............................
Real Time Sonar (RTS®) Window .......................................................................................................... 28  
Bottom Presentation.................................................................................................................................. 28  
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TABLE OF CONTENTS  
Real Time Sonar (RTS®) Window............................................................................................................ 57  
Bottom View ................................................................................................................................................ 57  
Zoom Width (Sonar Zoom View only) .................................................................................................... 57  
and 931c DF models only)...................................... 58  
.................................................................................... 58  
.................................................................................... 58  
.................................................................................... 58  
.................................................................................... 59  
.................................................................................... 59  
.................................................................................... 59  
................................................................................... 60  
ure input) ................................................................ 60  
The Menu System  
44  
45  
Start-Up Options Menu  
Normal Operation ...................................................................................................46  
Simulator ................................................................................
System Status ........................................................................
Self Test ....................................................................................
Accessory Test ........................................................................
GPS Diagnostic View (937c DF Combo and 937c Comb
Sonar X-Press™ Menu  
Active Side ..............................................................................
Split Position ...........................................................................
Sensitivity ...............................................................................
Upper Range (Advanced: Sonar, Split Sonar and Active
Lower Range ...........................................................................
Chart Speed ...........................................................................
Zoom Level (Sonar Zoom View only) .................................
Bottom Lock (Sonar Zoom View only) .............................
Sonar Colors ...........................................................................
7c Combo models only)  
60  
..................................................................................... 61  
..................................................................................... 61  
..................................................................................... 61  
.................................................................................... 62  
.................................................................................... 62  
.................................................................................... 62  
.................................................................................... 62  
.................................................................................... 62  
.................................................................................... 63  
.................................................................................... 63  
.................................................................................... 63  
Navigation X-Press™ Menu (937c DF Combo and 937c
Active Side ..............................................................................
Split Position ..........................................................................
Save Current Track ................................................................
Clear Current Track................................................................
Save Current Route (Only when navigating) ..................
Skip Next Waypoint (Only when navigating) ................
Cancel Navigation (Only when navigating) ....................
Remove Target (Only if a Target is active) ........................
Remove Grid (Only if a Grid is active)................................
mbo models only)  
64  
.................................................................................... 64  
.................................................................................... 64  
.................................................................................... 65  
.................................................................................... 65  
.................................................................................... 65  
Set Simulation Position (Advanced) ...................................................................................................... 65  
Set Map Offset (Advanced) ...................................................................................................................... 66  
Clear Map Offset (Advanced) .................................................................................................................. 66  
Sonar Menu Tab  
Beam Select (937c DF Combo and 931c DF models only) .................................................................... 55  
Fish ID+™........................................................................................................................................................ 56  
Fish ID Sensitivity........................................................................................................................................ 56  
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TABLE OF CONTENTS  
Alarms Menu Tab  
66  
Accessories Menu Tab  
Troubleshooting  
900 eries™ Doesn’t Pwer Up....................................................................................................... 78  
th a Transducer Attached................................................ 78  
................................................................................................. 79  
................................................................................................ 80  
77  
78  
Depth Alarm ................................................................................................................................................ 67  
Fish ID Alarm ................................................................................................................................................ 67  
Low Battery Alarm ...................................................
Temp Alarm ...............................................................
Off Course Alarm (937c DF Combo and 937c Com
Arrival Alarm (937c DF Combo and 937c Combo
Drift Alarm (937c DF Combo and 937c Combo m
Alarm Tone..................................................................
81  
81  
82  
83  
84  
85  
86  
Setup Menu Tab  
Units - Depth ..............................................................
Units - Temp (International only) ..........................
Units - Distance (With Speed input only) .............
Units - Speed (With Speed input only) .................
User Mode...................................................................
Language (International only).................................
Triplog Reset (With Speed input only) .................
Restore Defaults .......................................................
Select Readouts (Advanced)...................................
Depth Offset (Advanced).........................................
Temp Offset (Advanced) .........................................
Speed Calibration (Advanced, with Speed paddl
Local Time Zone (Advanced, 937c DF Combo an
Daylight Saving Time (Advanced, 937c DF Comb
Position Format (Advanced, 937c DF Combo and
Time Format (Advanced, 937c DF Combo and 93
Date Format (Advanced, 937c DF Combo and 93
NMEA Output (Advanced) .....................................
Sonar (937c DF Combo and 937c Combo models
mplate (Single Frequency: XHS-9-20-T)  
mplate (Dual Frequency: XHS-9-DB-74-T)  
which list (International Only) are only available on  
anada by our authorized International Distributors.  
national Distributors, please visit our website at  
ur Customer Resource Center at 1-800-633-1468 to  
which list (with Speed Input) or (with Temperature  
separate accessories. You can visit our website at  
accessories online or contact our Customer Resource  
Views Menu Tab  
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900 SERIES™ INTRODUCTION  
SINGLE BEAM SONAR  
Your 900 Series™ Ultra Wide Screen Fishing System comes in several different  
configurations. See the following list of products, all of which are covered by this  
manual, to find your 900 Series™ configuration:  
Your 900 Series™ 937c Combo and 931c use a 200 kHz single  
beam sonar system with a 20° area of coverage. Depth  
capability is affected by such factors as boat speed, wave  
ardness, water conditions and transducer  
NOTE: Only 937c DF Combo and 937c Combo
cartography.  
ingle beam transducers, but may be upgraded  
e and installation of a dual beam transducer.  
either 1-800-633-1468 or visit our website at  
n.  
Humminbird® 931c: Ultra Wide Screen Fis
200 kHz Transducer, optional GPS support  
Humminbird® 931c DF: Ultra Wide Screen
200 kHz and 50 kHz Transducer, optional G
r 931c model) 900 Series™ unit was shipped  
tware configuration. Before trying to operate  
ries™ to Single Beam in order for it to work  
ect for more information.  
Humminbird® 937c Combo: Ultra Wide Scr
(Maps) and Single Frequency 200 kHz Trans
Humminbird® 937c DF Combo: Ultra W
Chartplotter (Maps) and Dual Frequency 2
Receiver included.  
US™ SONAR  
937c DF Combo and 931c DF are shipped  
Hz DualBeam PLUS™ sonar system with a  
coverage. DualBeam PLUS™ sonar returns  
together, viewed separately or compared  
Beam PLUS™ is ideal for a wide range of  
shallow to very deep water, in both fresh  
pth capability is affected by such factors as  
action, bottom hardness, water conditions  
stallation.  
HOW THE 900 SERIES™ WORKS  
Sonar technology is based on sound waves. Th
sonar to locate and define structure, bottom c
depth directly below the transducer. Your 900 Se
wave signal and determines distance by m
transmission of the sound wave and when the so
it then uses the reflected signal to interpret lo
object. Sonar is very fast. A sound wave can trave
ft (70 m) and back again in less than ¼ of a sec
"outrun" this sonar signal.  
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Your 937c DF Combo and 937c Combo models use the GPS Receiver to determine the  
position of the boat automatically, and uses the zoom level settings on a particular  
view to select the best chart to display. See Viewing Cartography for more information.  
GPS AND CARTOGRAPHY  
(with 937c DF Combo and 937c Combo models only)  
The 937c DF Combo and 937c Combo models use GPS and sonar to determine your  
position, display it on a grid, and provide detailed underwater information. The Global  
Positioning System (GPS) is a satellite navigation system designed and maintained by  
the U.S. Department of Defense. GPS was or
civilians may also take advantage of its hig
within +/- 10 meters, depending on conditi
GPS receiver will read a location within 10
Receiver also uses information from WAA
EGNOS (the European Geostationary Nav
MTSAT Satellite Augmentation System) sat
MEDIA CARD (MMC)/SD SLOT  
Series™ 937c DF Combo and 937c Combo models  
cartography, and have two multi-media card  
D slots. Optional-purchase MMC and/or SD cards  
in additional detailed maps. You can also export  
n data from your unit onto an MMC/SD card (see  
on Main Menu: Export All Nav Data). If you insert  
or SD card that contains a more detailed chart for  
ar location, your unit will retrieve that chart and  
GPS uses a constellation of satellites that c
Your present position is determined by rec
measuring the distance from the satellites
937c DF Combo or 937c Combo model, allow
chartplotter and navigation capabilities wit
functionality is currently supported by the
when it is connected to a GPS Receiver:  
automatically.  
nd 931c models have one MMC/SD slot and do  
ort cartography.  
ds to update the software version of your control  
r control head, plug in the appropriate MMC/SD  
e file; the unit will recognize it, will tell you what  
currently running, and will ask you if you want to  
match that on the MMC/SD card. You can obtain  
mminbird.com website.  
View current position  
View current track (breadcrumb trail)  
View precision speed and heading fro
Save tracks, waypoints and routes  
Travel a route and navigate from one
sition of the MMC and SD slot cover, remove the  
/or an SD card into one or both slots - either slot  
ard. The label on both types of cards should face  
ou’re looking at the back of the card. Press down  
on the card until it clicks into place, then replace the slot cover and tighten the screw  
snugly - do NOT overtighten, as this will not improve water resistance, and may  
damage the cover.  
NOTE: Only the 937c DF Combo and 937c Co
marine cartography and Navionics® HotMa
Series™ does not support Navionics® Classic Ch
The 937c DF Combo and 937c Combo models also come with a built-in World map with a  
more detailed map of North America (Domestic models) or a more detailed map of  
Europe and Southeast Asia, including Australia and New Zealand (International models).  
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The 900 Series™ has a wide variety of configurations.  
ACCESSORY BUS  
Use the Accessory Bus to expand the functionality of  
your 900 Series™. Accessories plug directly into the  
900 Series™, enabling Advanced features such as  
WeatherSense®
Link. Additional 
to the menu sys
is plugged int
accessories can
Accessory Bus  
Accessories Men
this manual, as
Manual for addi
2
NOTE: Accessories to enable WeatherSense® and the
separate purchases. You can visit our website at w
Customer Resource Center at 1-800-633-1468 for add
1
INSTALLATION OVERVIEW  
Please read all instructions that are relevant for
the installation process.  
9
NOTE: Installation procedures will depend on produc
8
Accessory Bus  
Speed through water  
GPS Receiver  
4
5
6
7
WeatherSense®  
8
9
Power  
SmartCast® Wireless Sonar Link  
Temperature  
3
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Inside the boat there is often a channel or conduit used for other wiring, this can be  
used to route cables. Be sure to route the cable as far as practical from the antenna  
cable of VHF radios or tachometer cables to reduce the possibility of interference. The  
transducer and GPS receiver cables should not be cut, and care should be used not to  
damage the cable insulation.  
GIMBAL MOUNTING THE CONTROL HEAD  
If you are gimbal mounting the Humminbird® 900 Series™, you can pre-assemble the  
unit in order to plan the best mounting location.  
Basic installation tasks that you must perfo
Installing the control head (choosing
Installing the transducer (choosing e
mount, or trolling motor mounting m
Installing the GPS Receiver (if include
1
Installing the Speed accessory (if inclu
Testing the complete installation and
2
The supplied Humminbird® transducer use
addition, if you purchased a 937c DF Comb
install the included GPS antenna.  
3
NOTE: Accessories may require a separate
www.humminbird.com to order these accesso
Center at 1-800-633-1468.  
s  
CONTROL HEAD INSTALLATION  
You have two choices for mounting your 90
unting are:  
screws  
ashers  
d screw driver  
Hand drill with various drill bits  
Marine-grade silicone sealant.  
Gimbal mounting, where you use a
mount the control head so that it can
In-dash mounting, where you cut a ho
head to be recessed into the dash, and the control head cannot be moved after  
mounting.  
4
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1. Place the control head into the gimbal bracket. Make sure that the straight side  
of the gimbal arm is against the back side of the control head.  
8.5"  
5"  
2. Place a 1" (25 mm) diameter black washer on the gimbal knob and then thread  
the knob and washer into the housing. Tighten the gimbal knob to secure the  
900 Series™ control head to the mount. Re
You can now place the control head in various l
mounting. Rotating the mounting bracket to the
overhead mounting. The chosen mounting area
the control head can pivot through the full tilt ra
installation.  
1.25"  
NOTE: You can drill the cable pass hole underneath
thread the cables through the knock-out holes in the
hole directly under the mounting bracket, then you
behind the bracket, and will need to mount the hole
NOTE: When drilling holes in fiberglass hulls, it is be
progressively larger drill bits to reduce the chance of
Fill all holes with marine grade silicone sealant.  
NOTE: You must have underside access to the mountin
the surface. Also, make sure that the mounting surfac
control head from excessive wave shock and vibration
2
3. After the mounting location has been dete
remove the control head from the gimbal
NOTE: Alternate hole patterns are available underne
may match existing holes on the boat. If you choo
patterns, simply drill it out and use it to mount the b
4. Place the gimbal bracket in the chosen po
mark the four mounting screw locations u
Washer  
2
3
NOTE: Go to the installation instructions applica
and accessories. Make the required installations and then run the cables to your control  
head mounting location. Do not cut any cabling (except the power cable). If your cables  
are too short, extensions are available from your local dealer or online from  
Gimbal Mounting Bracket  
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5. Set the gimbal bracket aside and drill the four mounting screw holes using a  
5/32" (4.0 mm) drill bit.  
Cables Routed Directly Beneath Mounting Bracket  
1
6a. If the cables must pass through a hole directly beneath the mounting bracket,  
mark and drill an additional 1" (25 mm) hole centered between the four  
mounting holes. Route the cables th
met in place around the cables and in
of the back of the mounting bracke
tabs on the rear of the mounting bas
for the number of cables you want to
6b. If the cables cannot be routed directl
drill a 1" (25 mm) hole that will allow
Pass the cables through the 1" (25 m
grommet and pressing the gromme
mounting surface hole, then use it t
screws. Remove the hole cover, dril
(3.5 mm) bit, fill them with marine-
and insert the #8 Phillips countersin
ed Near Mounting Bracket  
3
7. Place the mounting bracket on the
holes and fill the mounting holes wit
Slotted-Hex wood screws into the m
2
NOTE: Be sure that the cables pass through t
break out tabs and there is enough cable slack
its full tilt range. Extra cable slack will also hel
he proper recesses on the cable collector insert.  
d to prevent reverse installation, so be careful not  
he wrong slots. If you don’t have a cable for every  
hole in the insert, install the blank plugs to protect the control head from the  
weather.  
6
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Plug Cable Connector Assembly to  
Back of Control Head  
9. While holding cables in place in the cable  
collector insert, thread the cables through  
the slot in the bottom of the cable collector  
cover, line up the cable collector insert and  
over, then slide the cover into place on the  
sert.  
2
3
4
1
Power  
1
2
3
4
5
Speed  
5
OTE: The tab on the Cable Collector insert goes  
Communications  
Transducer  
to the slot on the cover.  
Cable Collector Insert  
the cable collector cover using the 2 Phillip  
1
the mounting bracket. Plug in the cable  
e control head. Cable connectors and cable  
e installation, so be careful not to force the  
Once the cable collector and all cables are  
rol head, lock the assembly into place by  
threaded insert on the back of the housing.  
ed viewing angle and secure by tightening  
th nylon wire ties in order to hold the cables  
ad is now ready for operation.  
3
4
5
3
Cable Collector Cover  
Tab on Insert  
Slot on Cover  
7
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IN-DASH MOUNTING THE CONTROL HEAD  
8
If you are in-dash mounting the control head, start by placing the components on the  
surfaces where you intend to install them before installation. Make sure that the  
surfaces you have chosen provide adequate protection from wave shock, and that all  
cables can reach the control head.  
1
3
NOTE: If a cable is too short for your appl
Humminbird® Customer Support at 1-800-633
2
Parts and tools specific to In-dash mountin
In-dash mount bracket and threaded
In-dash mounting foam pads  
In-dash mounting template  
Reciprocating saw for cutting dash m
Masking tape to hold mounting temp
4
5
6
1. Locate a suitable, flat area of the da
head requires a depth of at least 3 ½
2. Tape the paper In-Dash Mounting t
location.  
ories  
3. At a location inside the dotted line on th
blade of reciprocating saw. Carefully
follow the dotted line around the temp
gh the mounting hole from the front side of the  
e dash, align the two threaded rods on the rear of  
oles on the in-dash mounting bracket. Place a  
d, then secure bracket by placing a wing nut onto  
n fully.  
4. Insert and tighten the two threaded
on the back side of the control head. P
place them on the back of the contro
between the longer top/bottom and shorter side pads.  
he proper recesses on the cable collector insert.  
The cable connectors are keyed to prevent reverse installation, so be careful not  
to force the connectors into the wrong slots. If you don’t have a cable for every  
hole in the insert, install the blank plugs to protect the unit from the weather.  
8
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7. While holding cables in place in the cable collector insert, thread the cables  
through the slot in the bottom of the cable collector cover, line up the cable  
collector insert and cover, then slide the cover into place on the insert.  
2
3
4
1
NOTE: The tab on the cable collector insert goes into the slot on the cover.  
8. Attach the cable collector insert to the cab
screws provided.  
9. Plug the cable collector assembly into t
connectors and cable sockets are keyed t
careful not to force the connectors into
collector and all cables are plugged into t
assembly into place by threading the knur
the back of the housing. (Cable ties are pro
place by threading them through the avail
2
NOTE: It is very important that the cable collector is u
installation.  
4
Plug Cable Connector Ass
Back of Control He
5
Cable Collector Insert  
Screws  
1
2
3
4
5
Cable Collector Cover  
Tab on Insert  
Slot on Cover  
9
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CONNECTING THE CONTROL HEAD POWER CABLE TO THE BOAT  
TRANSDUCER INSTALLATION  
A 6' (2 m) long power cable is included to supply power to the control head. You may  
shorten or lengthen the cable using 18 gauge multi-stranded copper wire.  
There are three different installation methods for your transducer:  
Transom Transducer  
CAUTION: Some boats have 24 or 36 Volt ele
connected to a 12 VDC power supply.  
The control head power cable can be connect
of two places: a fuse panel usually located ne
ethod of installation you will be using.  
not work for your application, you may exchange it,  
ing hardware included, for a transducer appropriate  
e or no charge, depending on the transducer. Call the  
nter (1-800-633-1468) for details and pricing, or visit  
ort/Transducer Exchange for more information.  
ulls, only general instructions are presented in this  
esents a unique set of requirements that should be  
tion to the parts supplied, you will need a hand drill  
6" or 5/16", depending on transducer type), a Phillips  
licone sealant.  
GROUND  
NOTE: Make sure that the power cable is
beginning of this procedure.  
s hulls, it is best to start with a smaller bit and use  
the chance of chipping or flaking the outer coating.  
sealant.  
1a. If a fuse terminal is available, use
included) that match the terminal o
ground (-), and the red wire to positiv
nsducer during operation, as this may cause physical  
al injury in the form of tissue damage. Handle the  
e control head is off.  
1b. If you need to wire the control head
inline fuse holder and a 2.5 to 3 Amp f
unit. Humminbird® is not responsibl
NOTE: In order to minimize the potential for
separate power source (such as a second batte
You are now ready to install the transducer. Find the section that refers to your specific  
transducer installation method.  
10  
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To determine transducer mounting location:  
TRANSOM TRANSDUCER INSTALLATION  
If you will be installing a transom mounted transducer, use the procedures in this section.  
You will have one of two different types of transducer, based on whether you have a Single  
(931c or 937c Combo) or a Dual (931c DF or 937c DF Combo) frequency 900 Series™ control  
head. There are two pieces to the transducer moun
The Single frequency transducer comes with a two
the Dual frequency transducer comes with a two-pie
Find the correct procedures for your transducer type
have to perform in order to install a transom-moun
NOTE: If transom mounting is not possible because of a stepped hull or cavitation noise, and  
you have a single layer fiberglass hull, In-hull installation is an option. See Inside the Hull  
Transducer Installation for more information.  
on the transom to install the transducer.  
est location:  
nsducer in an area which is relatively free of  
ough the water, turbulence is generated by  
ust of the propeller(s) - either clockwise or  
water is normally confined to areas  
ws of rivets on the bottom of the boat, and  
eller(s). Clockwise propellers create more  
oard or inboard/outboard boats, it is best to  
0 mm) to the side of the propeller(s).  
Determine transducer mounting location  
Mount the bracket to the boat (find the p
Single frequency or Dual frequency)  
Attach the pivot to the transducer (find the
Single frequency or Dual frequency)  
ee water is to view the transom while the  
mended if maximum high-speed operation  
, select a location on the transom where the  
th, flat and free of protrusions or ribs.  
Mount the transducer pivot assembly to th
transducer, either Single frequency or Dual
Adjust the running position of the trans
transducer, either Single frequency or Dual
ansducer allows it to point straight down  
Route the transducer cable  
Perform a final test of the transom transdu
be possible to mount the transducer on the  
r on the transom behind a step to avoid  
ater at higher speeds; the transducer must  
ead to maintain the sonar signal.  
er(s), it may be impossible to find an area  
nt mounting technique or transducer type  
should be considered (see Inside the Hull Transducer Installation).  
1
2
Rivets/Strakes  
2
Step  
1
Deadrise Angle  
3
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To mount the transducer bracket to the boat (Single frequency unit):  
To attach the pivot to the transducer (Single frequency unit):  
1. Remove the transducer mounting template from this manual. See Appendix A  
1. Attach the Two Piece Kick-Up pivot to  
for the Single Frequency Mounting Template.  
the transducer body, using the 1/4" - 20 x  
1 1/4" Phillips head pivot bolt, the nyloc  
nut, and the two toothed lock washers.  
1
NOTE: Please make sure that you use the co
your boat.  
NOTE: The toothed lock washers must be  
positioned between the transducer arms  
and the pivot knuckle regardless of  
mounting bracket type.  
3
2. Using a Phillips screwdriver and a 7/16”  
Washer wrench, loosely tighten the pivot bolt. Do  
not completely tighten the assembly at  
this time, so that the pivot angle can be  
adjusted later.  
15” (380 mm)  
from prop(s)  
Level  
ms  
3. Using a pencil or punch, mark the tw
for your type of hull) on the transom.
time.  
4. Using a 9/64" (3.5 mm) bit, drill th
1" (25 mm).  
12  
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To mount the transducer pivot assembly to the bracket  
(Single frequency units):  
To adjust the running position of the transducer (Single frequency unit):  
The transducer mounting bracket allows height and tilt adjustment, while the pivot  
bolt allows angular adjustment. These adjustments will help reduce cavitation.  
Initially, adjust the transducer as described in the following paragraphs. Further  
e installation after high-speed testing.  
1. Insert the pivot/transducer assembly into the mounting bracket.  
2. Do not snap the assembly closed.  
3. Apply marine-grade silicone sealant to t
transom.  
4. Align the transducer assembly with the dr
5. Using the appropria
attach the transducer
shown, using #8 x 5/8
tighten the mountin
transducer vertically. S
Cavitation that will cause  
erratic sonar readings  
1
ansducer body, so its length is parallel with  
en, using the angle portion of the mounting  
n so that it matches the template angle as  
NOTE: The running p
completely adjustable.
necessary to tweak the i
Phillips head screwdriver and a wrench. It  
pivot bolt after initial use as the plastic may  
rom the lock washers.  
Kick-Up Bracket  
1
st the height of the assembly so the face of  
f the template. Mark the position of the  
with a pencil.  
gain access to the mounting screws. Make  
as not changed, then hand tighten the two  
ck down.  
t changed.  
NOTE: when you are done with this procedure, go to the section entitled: To route the  
transducer cable.  
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5. Align the metal mounting bracket with the mounting  
holes. The center slot should be above the two outer  
slots. (This bracket and all other hardware supplied is top  
quality stainless steel for maximum strength and  
on protection.) Insert the three 1" (25 mm) flat  
ood screws into the drilled holes, but do not  
tely tighten.  
To mount the transducer  
bracket to the boat  
(Dual frequency unit):  
1. Remove the transducer mounting  
ducer (Dual frequency unit):  
ucer body, using the two 1/4"-20 x 5/8" (16 mm)  
hers, and square nuts. The toothed washers must  
ducer ears, between the pivot and the ears. The  
d from rotating by the pocket in the back of the  
ided which fits all the 1/4"-20 screws, but do not  
time.  
15” (380 mm)  
from prop(s)  
Level  
3
4
2
3. Using a pencil or punch, mark the thr
mark or drill any other holes at this t
4. Using a 5/32" (4.0 mm) bit, drill the
1" (25 mm). On fiberglass hulls, it is b
reduce the chance of chipping or flak
silicone sealant to fill the drilled holes.  
Toothed Washer  
Pivot  
2
3
4
Attach the Pivot  
Machine Screw  
14  
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To mount the transducer pivot assembly to the bracket  
(Dual frequency units):  
To adjust the running position of the transducer  
(Dual frequency units):  
1. Slide the assembled transducer into the metal bracket from the bottom,  
aligning the large hole at the top of the bracket with the hole in the pivot.  
The transducer mounting bracket allows height and tilt adjustment, while the pivot  
bolt allows angular adjustment. These adjustments will help reduce cavitation.  
bed in the following paragraphs. Further  
e installation after high-speed testing.  
2. Insert the headed pin through the pivot
headed pin can be inserted from either sid
3. Place the nylon washer over the opposit
stainless washer over the 1/4"-20 x 5/8"
opposite end of the headed pin and finger
locking compound on the threads to preve
tightened until all adjustments are made.  
Normal Cavitation  
NOTE: The running position of the transducer is no
adjustment may be necessary to tweak the installati
transducer body, so it is parallel with the  
5
1
using the supplied Allen wrench. Access to  
e lower holes in the side of the mounting  
ghten the pivot bolt after initial use as the  
e pressure from the lock washers.  
2
3
4
height of the assembly so the face of the  
1/8" (3 mm) to 1/4" (6 mm) beneath the  
he transom, and fully tighten the three  
ews.  
o gain access to the mounting screws, the  
sembly must be pivoted up in the bracket as  
shown. Be careful not to alter the running angle as some  
force is necessary to pivot the assembly.  
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5. If access to the top mounting hole is not possible due to the selected height of  
the transducer, fully tighten the two lower screws, then simply remove the  
headed pivot pin and the transducer assembly, and tighten the top screw, then  
reassemble.  
2. If you will be routing the cable through a hole in the transom, drill a 5/8"  
diameter (16 mm) hole above the waterline. Route the cable through this hole,  
then fill the hole with marine-grade silicone sealant and proceed to the next  
step immediately.  
6. Confirm that the pivot angle has not
fully tightened.  
escutcheon plate over the cable hole and use it as  
mark the two escutcheon plate mounting holes.  
plate, drill two 9/64" (3.5 mm) holes, then fill both  
marine-grade silicone sealant. Place the  
plate over the cable hole and attach with two  
6 mm) wood screws.  
To route the transom transducer cabl
The transducer cable has a low profile con
where the control head is mounted. There
cable to the area where the control he
procedure routes the cable through the tra
secure the cable by attaching the cable clamp to  
; drill one 9/64" dia. (3.5 mm) x 5/8" deep (16 mm)  
ll hole with marine-grade silicone sealant, then  
able clamp using a #8 x 5/8" (16 mm) screw.  
NOTE: Your transducer may not look exactly l
but it will mount in exactly the same way.  
other end of the transducer cable back into the  
connection holder.  
NOTE: Your boat may have a pre-existing wirin
transducer cable.  
1. Unplug the other end of the transdu
that the cable is long enough to acc
the cable over the transom.  
ansom transducer installation:  
on, please perform the final testing and then  
Finish the Transducer Installation).  
CAUTION! Do not cut or shorten the transducer ca
Route the cable as far as possible from any VHF
reduce the possibility of interference. If the cabl
extend the transducer cable up to a total of 50
Resource Center at www.humminbird.com or ca
NOTE: Since the transducer may need to pivot up
sure there is sufficient cable slack to accommoda
side of the transducer so the cable will not be damaged by the rotation of the transducer.  
16  
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Determine the transducer mounting location:  
INSIDE THE HULL TRANSDUCER INSTALLATION  
If you choose to mount your transducer inside the hull of your boat, perform the  
procedures in this section. The inside the hull mounting procedure is identical  
regardless of what type of transducer you have (Single or Dual frequency). In-hull  
mounting generally produces good results in sin
Humminbird® cannot guarantee depth performa
through the hull of the boat, since some signal los
on hull construction and thickness, as well as the
Decide where to install the transducer on the inside of the hull. Consider the following  
to find the best location:  
to find the areas that are mostly free from  
s and other protrusions, as these create  
can travel, the further aft and closer to the  
er has to be located in order to remain in  
ds.  
This installation requires slow-cure two-part epo
soft adhesive to install the transducer, as this m
unit. Do not use five-minute epoxy, as it has a
bubbles can be purged, thus reducing signal stre
ting after an inside the hull transducer is  
trial installation first that includes running  
determine the best mounting area before  
NOTE: In-hull mounting requires an installed and op
NOTE: Your transducer may not look exactly like the
but it will mount in exactly the same way.  
Preferred Mounting Area  
ol head, then power up the control head.  
unctioning transducer, it will automatically  
by holding the transducer over the side,  
pointing straight down over a known flat  
mark against the sonar signal that will be  
ed in the hull.  
1
n at the identified mounting location inside  
mounting ears pointed towards the bow of  
the boat.  
Rive
Step  
1
2
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Transducer Mounted  
Inside the Hull  
4. Fill the hull with enough water to submerge the  
transducer body. Use a sand-filled bag or other heavy  
object to hold the transducer in position. The  
transducer cannot transmit through air, and the water  
purges any
hull, and fills
Permanently mount the transducer:  
1. Make sure the position of the transducer is marked.  
2. Remove the water from inside the hull and thoroughly dry the mounting  
sively rough, it may be necessary to sand the area  
surface.  
n ample quantity of two-part slow cure epoxy.  
5. View the
against wha
the boat is i
observation
move on to
the hull and
6. Run the boat at various speeds and w
the control head. If depth performan
at the desired depth. If the performa
performance is not acceptable, repea
7. Once you have determined the best
mark the position of the transducer.  
r and the inside of the hull with epoxy.  
ce with a slight twisting motion to purge any  
keeping the end of the transducer that has the  
d, towards the bow of the boat.  
Route the cable:  
1. Once the mounting location is determ
the transducer, route the cable from
nd of the transducer that has the mounting ears to  
it will not move while the epoxy is curing.  
r is necessary inside the hull.  
7. If you unplugged the transducer cable at the beginning of this procedure, plug  
it back into the control head.  
NOTE: Neither water, spilled gasoline, nor oil will affect the performance of the transducer.  
18  
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TROLLING MOTOR TRANSDUCER INSTALLATION  
TEST AND FINISH THE TRANSDUCER INSTALLATION  
If you want to install the transducer on a trolling motor, use this procedure. Several  
styles of the transducer are compatible with trolling motor mounting. If you have a  
trolling motor bracket, refer to the separate installation instructions that are included  
with the bracket.  
When you have installed both the control head, the transducer, and accessories and  
have routed all the cables, you must perform a final test before locking the transducer  
in place. Testing should be performed with the boat in the water, although you can  
oat out of the water.  
NOTE: After trolling motor transducer installation, pl
finalize the installation (see Test and Finish the Trans
ansducer, this procedure does not apply, as the  
If you don’t have a
several options:  
rol head on. There will be an audible chirp  
y. If the unit does not power-up, make sure  
ated and that power is available.  
• You may purcha
will allow you to m
motor.  
wer is available, the control head will enter  
is detected (or one is not connected), the  
nd will indicate this by displaying the word  
ay.  
• You may also exc
transducer (with
trolling motor tran
water for reliable transducer detection.  
There are also several transducer switches av
configurations:  
with a digital depth readout, the unit is  
e boat is in water greater than 2 ft (.6 m) but  
the unit, and that the transducer is fully  
annot pass through air.  
Two control heads with one transducer  
Two transducers with one control head.  
radually increase the boat speed to test  
functions well at low speeds but begins to  
peeds, the transducer requires adjustment.  
downward and/or lowering the transducer  
eve depth readings at high speeds. If the left  
e right side, then the back of the transducer  
is angled too far downward. If the right side of the fish arch is longer than the  
left side, then the back of the transducer is angled too far upwards.  
NOTE: Call the Humminbird® Customer Resource C
pricing, or visit www.humminbird.com for more info
19  
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NOTE: It may not always be possible to get symmetrical fish arches and high speed depth  
readings at the same time. Due to the wide variety of boat hulls, however, it is not always  
possible to obtain high speed depth readings.  
GPS RECEIVER INSTALLATION  
NOTE: You will only need to perform this procedure if you have a GPS Receiver.  
(937c DF Combo and 937c Combo models only)  
To optimize performance of the GPS receiver, mount it in an area that has full exposure  
reception is 10° above the horizon. Different  
ing method appropriate for your GPS receiver.  
NOTE: It is often necessary to make several incremental transducer adjustments before  
optimum high speed performance is achieved
Once you have reached a consistently good
ready to lock down the transducer settings.  
Then use:  
5a. If you have a Single frequency transd
on the transom with a pencil, then p
screws. Find the third mounting hole
sure that the bracket location is the s
your hull type. Fill the mounting ho
the third screw before snapping the
Stem Mount with Existing 1” - 14 Thread Stem  
Access Under Mounting Location  
No Access Under Mounting Location  
Hand-tighten only!  
5b. If you have a Dual frequency transd
on the transom with a pencil, then p
screws. Tighten the stainless steel m
EXISTING 1" - 14 THREAD STEM  
e GPS receiver:  
mounting the GPS receiver, proceed directly to step 2  
Hand-tighten only!  
o mount your GPS receiver. Preplan and test the  
head before any drilling or cutting of your boat  
ed hardware to stem mount your GPS receiver,  
ded with that hardware to mount the stem  
available from Humminbird® if your planned routing  
exceeds 20', (6 m). Maximum cable length, including extensions, should not exceed 50' (16 m).  
NOTE: Remember to caulk or seal screw holes and drilled holes as needed to protect your  
boat from water damage.  
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2. Screw on the receiver base to the stem first,  
making sure that the stem pipe does not  
protrude from the receiver base. This adds  
protection to the cable when pulling it through  
the pipe st
pipe edges
ACCESS UNDER MOUNTING LOCATION  
Follow these steps to deck mount the GPS receiver when routing the cable down  
through the mounting location:  
1
2
test route the 20' (6 m) cable from the  
ad.  
3. Use elect
to the cable
configuration.  
3
l a 3/4" (19 mm) hole for the cable and cable  
Receiver  
1
2
3
NOTE: Leave
unless neede
easier.  
Receiver Base  
Stem Pipe  
ver. Make sure the receiver is flush on the  
g holes with a pencil or punch.  
4. Route the GPS receiver cable through the
route you chose in step 1.  
ll two pilot holes using a 9/64" (3.5 mm) bit.  
es and drilled holes as needed to protect your  
5. Attach the GPS receiver to its base using th
ver the pilot screw holes and attach with the  
nd tighten only!  
ade of a lighter material, a backing material  
1
No Access Under Mounting Location  
2
Mounting Screws  
Cable Route  
NMEA Pigtail Taped  
3
1
NMEA Pigtail Cable Out  
2
4
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NO ACCESS UNDER MOUNTING LOCATION  
Follow these steps to deck mount the GPS receiver in a situation where you must route  
the cable to the side because there is no space for a cable underneath the  
mounting location.  
FINISH ROUTING THE CABLE AND CHECK  
GPS RECEIVER OPERATION  
After installing a GPS receiver, you should perform the following procedure to finish  
routing the GPS cable to the control head and to check to make sure that the control  
1. Determine the best location, then
location to the control head.  
h to the control head as needed with cable ties.  
NOTE: AS-EC10 10' extension cables are availab
exceeds 20', (6 m). Maximum cable length, incl
to the Communications port on the control head.  
lation to use the System Status start-up option  
ew to confirm a good installation.  
2. Confirm the cable length is good an
control head. If holes are required to
to allow for the cable connector. Secu
2
3
4
1
NOTE: Remember to caulk or seal screw hole
boat from water damage.  
3. The GPS receiver has two wire routi
the intended cable route.  
4. With the cable routed, position th
location and mark the mounting hol
5. Move the GPS receiver to the side an
6. Align the GPS receiver's screw holes
the #8 - 1 1/4" Phillips head screws. H
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The Speed accessory incorporates a paddlewheel-type speed sensor in a high-impact  
plastic housing. The module is intended for installation on the transom, and will work  
well on almost any boat.  
SPEED ACCESSORY INSTALLATION  
NOTE: You will only need to perform this procedure if you have a Speed-Only Sensor.  
1
In addition to the parts supplied, you will need a hand drill with various bits, marine-  
screwdriver.  
ur boat that will be 6” to 8” or farther from  
so maintain contact with the water, even at  
cessory directly in front of the propeller or  
e are no protrusions such as ribs, rows of  
rd of the mounting location, as these may  
ddlewheel.  
4
so that the lower edge is flush with the hull  
m of the housing aligns with the bottom of  
s. If the transom angle is excessive, a fairing  
ddlewheel for proper operation.  
with a smaller drill bit and use progressively  
chipping or flaking the outer coating. Drill  
s approximately 3/4” (19 mm) deep.  
2
rine-grade silicone sealant, and attach the  
wo washers and two screws provided.  
6
Escutcheon Plate  
Wood Screw and Washer  
Cable Clamp  
1
2
3
4
7
Speed Accessory  
Axial Clip  
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Routing the speed cable to the control head:  
Cleaning the Speed accessory:  
1. You may route the cable over the top of the transom, or drill a 5/8” (16 mm)  
diameter hole in the transom directly above the module and above the  
waterline to route cable through. Use the cable clamps provided to secure the  
cable to the transom of the boat. If
included escutcheon plate to dress th
1. You should periodically remove the paddlewheel from the housing and clean it  
to remove growth resulting from the marine environment, as a clean  
paddlewheel results in more accurate readings.  
performed when the boat is not running, and is  
out of the water.  
NOTE: On fiberglass hulls, it is best to start w
larger drill bits to reduce the chance of chippin
Axial Clip to Remove Paddlewheel  
2. All mounting screws require a 5/32”
5/8” (16 mm) deep. Additionally, seal
with marine-grade silicone sealant (n
3. Route the cable to the control h
appropriate slot. Use the connec
control head.  
4. If the connections are correct, the con
information immediately (assuming
the boat is moving). If the speed se
adjust the height of the module on t
engaging the axial clip from the housing wedge  
you have rotated the axial clip, remove it from the  
m the holes in the housing.  
eel with a mild solution of biodegradable soap or  
ll of debris and/or algae at this time.  
ddlewheel, you may re-insert it into the housing.  
into the holes, then rotate it backwards to lock it  
he housing.  
NOTE: The paddlewheel must be oriented so that it is scooping the water.  
24  
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4. From the System Status screen, see a GPS Diagnostic View by pressing the View  
key. GPS Diagnostic View shows a sky chart and numerical data from the GPS  
receiver. The sky chart shows the location of each visible GPS satellite with its  
satellite number and a signal strength bar. A dark grey bar indicates that the  
ne your current position. A light gray bar  
monitored, but is not yet being used. See  
about the GPS Diagnostic View.  
TESTING THE SYSTEM INSTALLATION  
After you have completed the installation of the control head, transducer, and any  
other accessories such as the GPS receiver, and have made all the cabling connections  
required, you must test the installation before using the system. Thorough testing  
should be performed with the boat in the wat
operation initially with the boat out of the water
able on the 937c Combo and 937c DF Combo  
To test the installation:  
1. Press the POWER/LIGHT key on the contr
head. (There will be an audible chirp to let
and the initial Title screen will appear.) If th
that power is available. While the Title scre
MENU key to display the Start-Up Opti
4-WAY Cursor keys to position the cursor,
System Status from the Start-Up Options m
section for more information about these m
Test screen will appear.  
NOTE: If you wait too long, the system will default to
highlighted, and you will have to start again.  
2. Self Test displays results from the interna
serial number, Printed Circuit Board (PCB) s
hours of operation and the input volt
information about the Self Test.  
3. From the System Status screen, view acc
VIEW key. See System Status for more infor
NOTE: The speed accessory (if attached) will be detec
since your 900 Series™ was powered up.  
25  
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GETTING STARTED - USING YOUR 900 SERIES™  
POWERING UP THE CONTROL HEAD  
Your 900 Series™ Fishing System user interface is easy to use. A combination of keys,  
different views, and situation-specific, customizable menus allows you to control what  
you see on the color display. Refer to the following illustration, and see Key Functions,  
Views, and The Menu System) for more info
Turn on your 900 Series™ control head by pressing the POWER key. The Title screen is  
displayed until the 900 Series™ begins operation. Your 900 Series™ will begin Normal  
or Simulator operation, depending on the presence or absence of a transducer.  
1
937c DF Combo Title Screen  
Screen  
1
2
3
4
5
6
MMC/SD Card Slot  
ZOOM (+/-) Key (937c DF Combo and 937c Combo m
POWER/LIGHT Key  
INFO Key (937c DF Combo and 937c Combo models
MARK/GOTO Key (937c DF Combo and 937c Combo
26  
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WHAT’S ON THE SONAR DISPLAY  
The 900 Series™ can display a variety of useful information about the area under and adjacent to your boat, including the following items:  
Speed - if a Speed accessory or GPS  
Receiver is attached, the 900 Series™  
can display the speed of the boat,  
and can keep a triplog of nautical or  
statute miles traveled.  
7
1
Thermoclines - layers of water with  
different temperatures that appear  
at different depths and different  
times of the year. A thermocline  
typically appears as a continuous  
band of many colors moving across  
the display at the same depth.  
8
2
3
4
9
Sonar Color Bar - color spectrum  
indicating low to high sonar intensity  
returns, where red indicates high  
intensity and white indicates low  
intensity.  
9
5
6
7
Bait Ball  
10  
11  
RTS® (Real Time Sonar) Window  
Second Sonar Return  
-
when the  
12  
sonar signal bounces between the  
bottom and the surface of the water  
and back again. Use the appearance  
of the second return to determine  
bottom hardness. Hard bottoms will  
show a strong second return, while  
soft bottoms will show a very weak  
one or none at all.  
Depth - water depth; can be set to alar
Timer - Elapsed time with Speed access
1
2
3
4
ense®  
Distance - Distance traveled with Speed
Average Speed - Average speed reading w
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UNDERSTANDING SONAR HISTORY  
BOTTOM PRESENTATION  
It is important to understand the significance of the 900 Series™ display. The display  
does NOT show a literal 3-dimensional representation of what is under the water. Each  
vertical band of data received by the control head and plotted on the display  
represents something that was detected by
the boat and the targets (fish) may be
particular segment of time when objects
objects are in relation to other objects show
As the boat moves, the unit charts the changes in depth on the display to create a  
profile of the Bottom Contour. The type of bottom can be determined from the return  
charted on the display. A Hard Bottom such as compacted sediment or flat rock  
splay. A Soft Bottom such as mud or sand appears  
cky Bottoms have a broken, random appearance.  
esented as a thicker line across the display. Harder  
th red and softer bottoms typically will be displayed  
REAL TIME SONAR (RTS®) WINDO
structure and fish can be represented as either  
nar Menu: Bottom View for details on how to set  
A Real Time Sonar (RTS®) Window appears
View only. The RTS® Window always upda
conditions and shows only the returns fro
within the transducer beam. The RTS® W
sonar return. (See Sonar Menu: RTS® Windo
The Narrow RTS® Window  
indicates the sonar intensity  
through the use of colors. Red  
indicates a strong return and  
blue indicates a weak return.  
The depth of the sonar return  
is indicated by the vertical  
placement of the return on  
the display depth scale.  
Structure ID® represents weak returns in blue and strong returns in red.  
28  
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KEY FUNCTIONS  
Your 900 Series™ user interface consists of a set of easy-to-use keys that work with  
various on-screen views and menus to give you flexibility and control over your  
fishing experience. Regardless of model, your control head will have the following  
ombo or a 937c Combo model, your control  
vigation-related keys:  
WhiteLine® highlights the strongest sonar retur
outline. This has the benefit of clearly defining th
sed to turn the 900 Series™ on and off, and  
t and background color of the display. Press  
turn the unit on. The Title screen is then  
ries™ begins sonar operation.  
29  
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To adjust the backlight or to adjust the display  
background color, press the POWER/LIGHT key to  
access the Light and Background menu. Use the  
4-WAY Cursor key to select Light or Background  
and th
change
and Ba
temporarily, and the screen will update if it is affected by your menu setting change,  
allowing you to see the effects of your action immediately. Reactivate the X-Press™  
Menu by using the UP or DOWN Cursor keys.  
Main Menu - Press the MENU key twice for the tabbed Main Menu System. The Main  
bbed headings to help you find a specific menu  
ews, and Accessories tabs are part of your tabbed  
7c DF Combo or a 937c Combo model, your menu  
nd Chart. Use the LEFT or RIGHT 4-WAY Cursor  
he DOWN or UP key to select the menu item, and  
u setting.  
Press and hold the POWER/LIGHT key for 3
appear telling you how many seconds th
Series™ should always be turned off using t
shutdown occurs properly and any menu se
SOR CONTROL KEY  
sor Control Key has multiple functions, depending  
n:  
VIEW KEY  
The VIEW key is used to cy
VIEW key to advance to t
cycles through all views available. Views ca
fishing requirements (see View Menu Tab).  
on the 4-WAY Cursor Control key will freeze the  
sor and cursor dialog box will be displayed. The  
ar View using the 4-WAY Cursor Control key.  
MENU KEY  
The MENU key is used to ac
the 4-WAY Cursor Control key controls the motion  
e 4-WAY Cursor Control key pans the charts.  
e Cursor mode, you can also make the cursor move  
of the arrows on the 4-WAY Cursor Control key..  
Start-Up Options Menu - Press the MENU k
the Start-Up Options menu.  
UP arrow keys to select a menu choice from the  
T arrow keys to change a menu setting.  
X-Press™ Menu - Press the MENU key once
allows you to access frequently-used settin
whole menu system. When the X-Press™
DOWN Cursor keys to move to a particular menu choice. As soon as you alter a  
parameter (using the RIGHT or LEFT Cursor keys) the X-Press™ Menu will collapse  
and saved immediately - no further action is required.  
30  
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If the cursor is not active, the following menu will be  
displayed. Use the 4-WAY Cursor Control key to select  
Nearest Port, Nearest Tide Station or Nearest Current  
Station, then use the RIGHT Cursor key to display the  
ormation.  
VIEW PRESET KEYS  
The VIEW PRESET keys are used to program your three favorite  
views for quick retrieval. Instead of using the VIEW key to cycle  
through every view to find the one you want, you can program the VIEW PRESET  
keys to display a specific view immediately. To p
the VIEW key to cycle to the view you want to st
PRESET keys for several seconds. A series of aud
that the view has been programmed to the ke
one on each key.  
-in Uni-Map™ does not contain Port, Tide or  
ation. This information is only available from  
se MMC/SD cards.  
models only)  
EXIT KEY  
le in any view to mark the position of a  
rent boat location, or, if the Cursor is active,  
ion.  
The EXIT key has multiple func
If an alarm is sounding, pressing EXIT will c
If a menu tab is selected, pressing EXIT will e
view.  
If a menu is active, pressing EXIT will retur
system.  
sing the GOTO key while in any view creates  
gation towards that waypoint. If the Cursor  
GOTO key displays the list of waypoints, so  
ypoint towards which you want to navigate.  
Pressing EXIT will cycle through the availab
If Freeze Frame is active, pressing EXIT will
If the Cursor is active, pressing EXIT will rem
models only)  
while in any of the Navigation Views or the  
ge the scale of the view to appear closer or  
INFO KEY  
(937c DF Combo and 937c Combo models
Press the INFO key while in any na
about objects that are nearest to
31  
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VIEWS  
VIEWS AND READOUTS  
The views available on your 900 Series™ are:  
All views have an Information Bar on the left side of the screen, consisting of readouts  
that are stacked vertically, and that change from view to view. You can customize the  
information displayed in individual readouts on many views, including suppressing a  
is displayed; the ability to customize readouts  
you are navigating (see Setup Menu Tab, Select  
Sonar views:  
Sonar View  
Sonar Zoom View  
Split Sonar View (937c DF Combo/931c
Self Test View  
Accessory Test View  
Navigation views:  
Bird’s Eye View (937c Combo/937c DF m
Chart/Bird’s Eye Combo View (937c DF
Chart View (937c DF Combo and 937c C
Chart/Sonar Combo View (937c DF Com
GPS Diagnostic View (937c DF Combo a
Sonar View is the default view. When th
through the available views. When the EXIT
the available views in reverse order. Any vie
view rotation using the Views Menu tab.  
NOTE: When you change any menu settings that affect the sonar, the view will update  
immediately (i.e. you don’t have to exit the menu to apply the change to the screen).  
32  
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NOTE: If the Depth number is flashing, it means that the unit is having trouble locating the bottom.  
This usually happens if the water is too deep, the transducer is out of the water, the boat is moving  
too fast, or for any other reason that the unit can’t accurately receive continuous data.  
SONAR VIEW  
Sonar View presents a historical log of sonar returns. The most recent sonar returns  
are charted on the right side of the window; as new information is received, the older  
information is moved across the display to the left. A scale with Upper and Lower  
Depth Range readouts appears along the right
indicates the distance from the surface of the w
show the bottom. Depth Range is automatically s
the display, although you can adjust it manually
Freeze Frame - Pressing any arrow on the 4-WAY Cursor Control key will freeze the screen  
alog box will be displayed on the screen. The  
g the 4-WAY Cursor Control key to determine  
ndow continues to update in Freeze Frame. In  
anges with Instant Image Update.  
e display will start to scroll.  
Sonar View  
6
7
1
esolution to separate sonar returns that are  
fish suspended close to the bottom or within  
to show a narrow slice of the full range view  
left. The full range view on the right also  
what part of the full range view is shown in  
ox tracks the bottom in the full range view.  
2
3
pdates automatically to display a magnified  
Box shows where the zoomed view is in  
Level, or magnification, is displayed in the  
suit conditions (see Sonar X-Press™ Menu:  
h Range numbers indicate the depth of the  
4
Depth  
1
Triplog  
2
3
4
5
6
Temperature  
Speed  
11  
12  
Cursor  
Sonar Color Bar  
Depth of Cursor  
Lower Depth Range  
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Freeze Frame - Pressing any arrow on the 4-WAY Cursor Control key will freeze the screen  
in the Sonar Zoom View and a cursor and cursor dialog box will be displayed on the screen.  
The cursor can be positioned on the display using the 4-WAY Cursor Control key to  
determine the depth of any sonar return. The RTS® Window continues to update in Freeze  
Frame. In addition, see the effects of menu se
SPLIT SONAR VIEW  
(937c DF Combo and 931c DF models only)  
Split Sonar View displays sonar returns from the 50 kHz wide beam on the left side of  
the screen and displays sonar returns from the 200 kHz narrow beam on the right side  
of the screen. You can use the Split Sonar View to make side by side comparisons  
50 kHz wide beam and the 200 kHz narrow beam.  
Pressing EXIT will exit Freeze Frame and the
plit Sonar View  
3
Sonar Zo
6
1
2
3
5
4
4
200 kHz Sonar History Window  
50 kHz Sonar History Window  
Temperature  
5
6
7
8
Depth  
1
Speed  
Triplog  
2
3
4
5
6
Temperature  
Speed  
12  
Zoomed View  
Zoom Level  
Lower Depth Range, Zoom View  
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Bird’s Eye View  
BIRD’S EYE VIEW  
(937c DF Combo and 937c Combo models only)  
1
Bird's Eye View shows a 3D perspective view of the track and the chart land contour  
from a point above and behind the boat (the eye point). As the boat turns, the eye  
point moves to follow the boat. Big Digits on this view provide digital data in a large,  
easy-to-see format.  
When you press the 4-WAY Cursor key in the Bird’s
will shift. This allows you to move and turn the ey
sides, or even behind the boat. Pressing the RIG
Cursor key turns the eye point right or left, while
eye point forward, and pressing the DOWN arrow
5
6
Pressing the EXIT key moves the eye point back
above the boat.  
Speed of Boat  
Land Contours  
Boat Icon  
4
5
6
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CHART/BIRD’S EYE COMBO VIEW  
(937c DF Combo and 937c Combo models only)  
CHART VIEW  
(937c DF Combo and 937c Combo models only)  
Chart/Bird’s Eye Combo View shows both the Chart and Bird’s Eye views in a  
combination split screen. You can perform any of the functions for either of these  
views, but only when the view you want to control is selected as the active side  
(see Sonar X-Press™ Menu: Active Side or N
more information). A green arrow points
adjust the size of the left side of a split
Position or Navigation X-Press™ Menu: Sp
Chart View shows cartography from the built-in UniMap™ or an optional MMC map  
for the area surrounding your current position. The current track (also known as the  
position history or breadcrumb trail) showing where the boat has been, along with  
rent route (when navigating), are overlaid on the  
Control key to shift/pan the chart to another area.  
zoom in and out. You can use the INFO key to get  
r the cursor.  
NOTE: See Bird’s Eye View and Chart View for m
ew with Active Cursor  
Chart/Bird’s Ey
6
7
1
6
2
9
3
8
3
2
4
Distance to the Cursor  
Bearing to Cursor  
Cartography  
5
6
7
Depth  
Cartography  
1
8
HDG: Direction that boat is travelling relative to  
North Reference  
2
Active Cursor  
9
Bird’s Eye Window  
Boat Icon  
3
4
5
HDG: Direction that boat is travelling relative to  
North Reference.  
Latitude and Longitude Position of Cursor  
10  
9
Active Cursor  
10  
11  
Track (Breadcrumb Trail)  
Chart Window  
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Chart/Sonar Combo View  
CHART/SONAR COMBO VIEW  
(937c DF Combo and 937c Combo models only)  
6
7
5
1
Chart/Sonar Combo View shows both the Chart and Sonar views in a combination  
split screen. You can perform any of the functions for either of these views, but only  
when the view you want to control is selected as the active side (see Sonar X-Press™  
Menu: Active Side or Navigation X-Press™ Menu:
green arrow points to the side that is active. You c
of a split screen (see Sonar X-Press™ Menu: Split P
Split Position for more information).  
8
4
9
Note: See Sonar View and Chart View for more infor
3
2
12  
Bearing to Cursor  
Cartography  
7
8
Active Cursor  
9
HDG: Direction that boat is travelling relative  
to North Reference  
10  
Sonar Window  
11  
Chart Window  
12  
37  
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Chart View with Cursor Present  
CHART ORIENTATION  
All the chart views allow you to choose the orientation of the chart. When North-Up  
orientation is selected, True North is shown at the top of the display. In other words,  
objects located to the north of the boat are drawn above the boat. When Course-Up  
orientation is selected, the direction of mo
display. In other words, objects ahead of th
orientations, the view pans automatically,
display. When the boat is stationary, it is dra
it takes on a boat shape, pointed in the dire
Up orientation). See Navigation Menu Tab:
VIEWING CARTOGRAPHY  
In the Chart or Combo Views, there are seve
can access using various keys.  
Panning: Use the 4-WAY Cursor keys to mo
direction of the key being pressed. When yo
top of the screen and is linked to the boat
screen. At the same time, a cursor dialog bo
the distance and bearing from the
latitude/longitude coordinates of the curso
you can also use the 4-WAY Cursor Control k
38  
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Zooming: Use the Plus (+) key to Zoom In and the Minus (-) key to Zoom Out showing  
the cartography at different scales. The scale is indicated on the left side of the display.  
If you zoom in beyond the available chart data, the display will go into Overzoom mode  
whereby the last available chart data is amplified to reflect the scale selected. If you  
zoom in so far that no cartography is available, a
Nearest Current Station: Current information for the nearest current station to your  
present position will be displayed. This includes the position of the station and the  
current changes for today. Two graphs are also presented that show the time, direction  
and flow speed of the current changes for the 24 hour time period of today’s date. You  
ormation before or after the date displayed  
spectively. Press the EXIT key to remove the  
will be centered over the current station  
ill indicate the distance and bearing to the  
.  
Chart Info: Use the INFO key to get detailed infor
is active, you will see information about the chart
cursor is not active, the Chart Info menu will app
the nearest tide station, or the nearest current sta
these objects.  
(937c DF Combo and 937c Combo models only)  
NOTE: The built-in UniMap™ does not contain any
information is only available from optional-purchase
nts at areas of interest and to navigate to  
presenting the shortest intended distance  
nd save tracks, which represent the actual  
Nearest Port: The position and services inform
present position will be displayed. Press the EXIT
and the Bullseye Cursor will be centered over the
Boxes will indicate the distance and bearing to th
Nearest Tide Station: Tide information for the
position will be displayed. This includes the positi
high and low tides for today’s date. A tide graph i
fall of the tides for the 24 hour time period encom
date to look at tide information before or after th
or RIGHT Cursor key respectively. Press the EXIT ke
the Bullseye Cursor will be centered over the
information boxes will indicate the distance and
present position.  
39  
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Routes link two or more waypoints together to create a path for navigation, and are  
used in trip planning. You can link individual waypoints together by using the GOTO  
key. A route represents your intended navigation and shows the shortest path from  
each waypoint to the next. As you travel a route, staying on the route line is the most  
ation, although you should always look out for  
ur 900 Series™ can store up to 50 routes that can  
WAYPOINTS, ROUTES AND TRACKS  
Waypoints are stored positions that allow you to mark areas of interest or navigation  
points. Your 900 Series™ can store up to 3000 waypoints.  
(937c DF Combo and 937c Combo models only)  
Waypoints, Rou
1
story, and are displayed as a breadcrumb trail of  
the position history since the unit was powered  
displayed). You can clear the Current Track or save  
an store up to 50 saved tracks, each containing  
k represents your actual path so far.  
2
11  
3
4
5
POINT (937c DF Combo and 937c Combo models only)  
oint: On any view, press the MARK key to save the  
6
point.  
7
int: On the Chart or Combo view, use the Cursor  
nt to save as a waypoint. Then press the MARK key  
ypoint.  
Depth  
T
1
HDG: Direction that boat is traveling  
relative to North Reference  
BRG: Direction to Destination Waypoint  
Relative to North Reference  
XTE: Cross Track Error. Distance of Boat  
from Route  
2
3
4
5
ry: Use the Cursor key to point to a feature in the  
Saver feature). Press the MARK key to create a  
sonar reading was taken. The new waypoint will  
n.  
DTG: Distance to Go to Waypoint  
ny of these methods, a numerical waypoint name is  
the waypoint information later to give it a different  
it (see Waypoint submenu on the Navigation Main  
Menu Tab).  
40  
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Display the Waypoints Submenu: From any view, press the MENU key twice to display  
the Main Menu System, then use the RIGHT Cursor key to select the Navigation tab.  
Select Waypoints and press the RIGHT Cursor key to display the Waypoints submenu.  
NAVIGATE TO A WAYPOINT OR POSITION  
(937c DF Combo and 937c Combo models only)  
Navigate to the cursor position: From any Chart or Combo view, use the Cursor key to  
select a position or waypoint to which you want to navigate. Press the GOTO key.  
Program a specific position as a waypoint: To create a waypoint that is NOT your  
current position, from the Waypoints submenu, s
RIGHT Cursor key. Use the Cursor keys to pro
longitude, and icon before selecting Save.  
he GOTO key, then choose the waypoint to  
e waypoint list and press the RIGHT Cursor  
Edit a waypoint: From the Waypoints submenu, s
key to display a list of saved waypoints. Select the
the RIGHT Cursor key. Use the 4-WAY Cursor Contr
the UP and DOWN Cursor keys to changes val
Waypoint Name, Latitude and Longitude fields, u
change the letter or number. All upper and lowe
digits 0-9 and some punctuation characters. In th
DOWN Cursor keys to change the icon used to re
and Chart Views. You can exit these fields with t
pressing the EXIT key. Select Save and press the RI
ns, you can add more waypoints to create a  
X-Press™ Menu, select Skip Next Waypoint  
not another waypoint to skip to, navigation  
Press™ Menu, select Cancel Navigation and  
navigation removes the route and any  
ut does not remove any saved routes from  
current route when you cancel navigation.  
To make it easier to select a waypoint, select Sort B
keys to select a sort order:  
Name shows the waypoints alphabetically  
Time shows the most recently-created way
Distance shows the closest waypoint first.  
Delete a waypoint: From the Waypoints submen
Cursor key to display a list of waypoints. Select th
press the RIGHT Cursor key. You will be asked to c
is actually deleted.  
41  
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Add or Remove a Trolling Grid: From the Waypoints submenu (accessed from the  
Navigation main menu), select Grid and press the RIGHT Cursor key to display a list of  
waypoints. Select the waypoint to which you want to add the grid. The trolling grid will  
appear on all of the navigation views, and can be used as a guide when trolling around  
to any desired heading using Grid Rotation from  
ve the trolling grid, choose Remove Grid from the  
ADD A WAYPOINT TARGET OR TROLLING GRID  
(937c DF Combo and 937c Combo models only)  
Add or Remove a Waypoint Target: From the Waypoints submenu (accessed from the  
Navigation main menu), select Target and press the RIGHT Cursor key to display a list  
of waypoints. Select the waypoint you want
circles centered on the selected waypoint
the target shows various distance ranges fr
target, choose Remove Target from the Nav
rt View with Grid  
NOTE: Only one waypoint can have either a tar
or a grid to a new waypoint, the original wayp
Chart View
2
1
4
5
6
her a target or a grid at one time. If you apply a target  
al waypoint will lose its target or grid.  
Map Scale  
1
2
3
6
waypoint target and the spacing of the grid lines on  
the trolling grid is the same as the length of the scale bar on the left edge of the display.  
Zooming in or out will decrease or increase the spacing, respectively.  
Waypoint Target  
42  
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SAVE, EDIT OR DELETE A ROUTE  
(937c DF Combo and 937c Combo models only)  
SAVE OR CLEAR A CURRENT TRACK  
(937c DF Combo and 937c Combo models only)  
Save the current route: While you are navigating, the current route can be saved. From  
the Navigation X-Press™ Menu, select Save Current Route and press the RIGHT Cursor  
key. Navigation will continue.  
Save the current track: From the Navigation X-Press™ Menu, select Save Current Track  
and press the RIGHT Cursor key. The track will remain on the display, but will change  
from black to gray. To remove the track completely from the display, see Edit, Delete or  
Display the Routes submenu: From any view, pre
Main Menu System, then use the RIGHT Cursor ke
Routes and press the RIGHT Cursor key to display
matically assigned. The track name consists of  
er (see Edit, Delete, or Hide Saved Tracks).  
on X-Press™ Menu, select Clear Current Track  
l be removed from the display and discarded.  
Create a route: From the Routes submenu, selec
key. A Route Edit screen will be displayed with an e
add waypoints to the route from the list of all w
the route using the Cursor keys.  
KS (937c DF Combo and 937c Combo models only)  
w, press the MENU key twice to display the  
ursor key to select the Navigation tab. Select  
isplay the Tracks submenu.  
Edit a saved route: From the Routes submenu, se
key. A Route Edit screen will be displayed. Select
the RIGHT Cursor key. Re-name the route or chan
used in the route.  
enu, select Edit and press the RIGHT Cursor  
ct the track you want to edit and press the  
og box appears, use the Cursor keys to move  
he UP and DOWN Cursor keys change the  
etters are available, as well as digits 0-9 and  
it the Track Name field with the LEFT and  
key. Select Save and press the RIGHT Cursor  
Delete a saved route: From the Routes submen
Cursor key. Select the route you wish to delete an
be asked to confirm your choice by pressing the
route is deleted.  
Travel a saved route: From the Routes submen
Cursor key. A list of saved routes will appear. Sel
press the RIGHT Cursor key to make this route the
You may also travel the route in either forward o
enu, select Delete and press the RIGHT Cursor  
t the track you want to delete and press the  
m deletion before the track is actually deleted.  
Route Info: From the Routes submenu, select Info
of saved routes will appear. Select the route for w
the RIGHT Cursor key. The list of waypoints in the route will be shown, with the  
distance and bearing from each waypoint to the next, as well as the distance and  
bearing from the current position to the first waypoint in the route.  
cks submenu, select Visibility and press the  
RIGHT Cursor key to display the list of saved tracks. Select the track you want to hide or  
display and use the Cursor keys to select Hidden or Visible. Press the EXIT key to return  
to the Tracks submenu.  
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Press the MENU key twice for the Main Menu,  
then use the 4-WAY Cursor LEFT or RIGHT key to  
select a tab, and use the DOWN or UP key to select  
a specific menu item under that tab, then use the  
LEFT or RIGHT keys again to change a menu  
setting. Press the EXIT key to move quickly to the  
op of the tab. A down arrow at the bottom of a  
menu means that you can scroll to additional  
menu choices using the DOWN Cursor key. A right  
or left arrow on a menu choice means that you  
can use the RIGHT or LEFT Cursor keys to make  
changes or to see more information.  
THE MENU SYSTEM  
The menu system is divided into easy-to-use menu modules. The main components of  
the menu system are:  
Start-Up Options Menu: Press the MENU k
the Start-Up Options menu. See Start-Up Op
X-Press
access
withou
menu s
the X-P
from th
leaving
Use the
X-Press
NOTE: The Main Menu choices will vary depending on  
whether you are in Normal or Advanced User Mode,  
and what model you own.  
X-Press™ Menu  
NOTE: The X-Press™ Menu choices will vary d
press the MENU key, as well as whether you a
the Sonar or Navigation X-Press™ Menu will a
Main Menu Tabs: Less frequently-adjusted
System. The Main Menu system is organize
you find a specific menu item quickly. If yo
model, main tab headings are: Alarms, So
Accessories. If you have a 931c DF or 931c m
Setup, Views, and Accessories.  
44  
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User Mode (Normal or Advanced): An Advanced Mode is provided for users who  
desire the highest level of control over the 900 Series™ and Normal Mode for users  
who desire greater simplicity and fewer menu choices. Additional Advanced menu  
choices will be displayed throughout the menu system when you navigate to specific  
menus while in Advanced Mode. Any changes
remain in effect after you switch back to Norm
Mode for specific instructions on changing to the
START-UP OPTIONS MENU  
Press the MENU key when the Title screen is displayed to access the Start-Up  
Options menu.  
NOTE: The 900 Series™ defaults to Advanced User M
ptions Menu  
o position the cursor, then the RIGHT Cursor  
f you wait too long, the system will default  
ighlighted:  
Sonar Tab, Normal Mode  
Total Screen Update: when you change any men
the view will update immediately (i.e. you don’t
change to the screen).  
See the followng paragraphs for more nformation about each of these choices.  
45  
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NORMAL OPERATION  
SIMULATOR  
Use the Simulator to learn how to use your 900 Series™ before taking your boat on the  
water. The Simulator is a very powerful tool that simulates on-the-water operation,  
providing a randomly-updated display. We recommend going through this manual  
of the menus function and affect the display the  
l operation.  
Use Normal operation for on-the-water operation with a transducer connected. In  
addition, your 900 Series™ uses advanced transducer detection methods to determine  
if a transducer is connected. If a functioning transducer is connected, Normal  
operation will be selected automatically a
used on the water.  
Exit Normal operation by powering your 90
Simulator  
mulator, it is important to select Simulator manually  
opposed to letting the 900 Series™ enter Simulator  
r is not connected and you do nothing during power  
om the Start-Up Options menu allows you to pre-  
water operation. Any menu changes you make will be  
n the display periodically to remind you that you  
Exit the Simulator by powering your 900 Series™ off.  
46  
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SYSTEM STATUS  
ACCESSORY TEST  
Use System Status to view system connections and to conduct a unit self-test. Exit  
Accessory Test lists the accessories connected to the system.  
System Status by powering your 900 Series™ off.  
The following screens are displayed in turn whe
using System Status:  
Self Test  
Accessory Test  
GPS Diagnostic View (937c DF Combo and
SELF TEST  
Self Test displays results from the internal diag
number, Printed Circuit Board (PCB) serial numb
operation and the input voltage.  
Test Screen  
only if the paddlewheel has moved since your  
(With 937c DF Combo and 937c Combo models only)  
ble when a GPS Receiver is attached to you  
al data from the GPS receiver. The sky chart  
ellite with its satellite number and a signal  
the satellite is being used to determine your  
that the satellite is being monitored, but is  
Self Test Screen  
47  
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This view also reports the current position, local time and date, and other numeric  
information. The current GPS Fix Type is reported as No Fix, 2D Fix, 3D Fix, or Enhanced.  
An Enhanced fix has been augmented using information from WAAS, EGNOS, or MSAS.  
A 3D or Enhanced Fix is required for navigation. HDOP (the Horizontal Dilution of  
Precision) is a GPS system parameter w
configuration. HDOP is used to calculate th
SONAR X-PRESS™ MENU  
The Sonar X-Press™ Menu provides access to the  
settings most frequently used. Press the MENU  
key once while in any of the Sonar Views to access  
he Sonar X-Press™ Menu.  
NOTE: Menu choices will vary depending on system  
ettings such as whether the unit is set for Advanced  
User mode.  
GPS Diagn
1
NOTE: The Zoom Level menu option is only available  
on 931c and 931c DF models.  
4
3
Sky Chart  
1
Satellite Being Used  
2
48  
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ACTIVE SIDE  
SENSITIVITY  
Active Side allows you to select which side of a  
Combo View will be active; key presses will only affect the active side of the screen.  
When a menu is displayed, the non-active side of the screen will be grayed out; at any  
other time, a green arrow will point to the activ
sonar on the left, with charts or Bird’s Eye usuall
choice is only available when a Combo View is ac
Sensitivity controls how much detail is shown on the  
display. Increasing the sensitivity shows more sonar returns from small baitfish and  
suspended debris in the water; however, the display may become too cluttered. When  
depths, increased sensitivity shows weaker  
the sensitivity eliminates the clutter from the  
or muddy water. If Sensitivity is adjusted too  
returns that could be fish.  
To select the Active Side:  
ust the Sensitivity:  
1. Highlight Active Side on the Sonar X-Press
hlight Sensitivity on the Sonar X-Press™  
.  
2. Use the RIGHT 4-WAY Cursor Control key
(Left, Right, Default = Left, or Sonar).  
the LEFT or RIGHT 4-WAY Cursor Control  
to increase or decrease the Sensitivity  
g. (Low = 1, High = 20, Default = 10)  
SPLIT POSI
Sensitivity at High  
Split Positi
percentage of the screen is taken up by the left
may be adjusted independently; you must be in
size for that view. The number setting indicates
side of the Combo View; selecting Left sets the l
setting. The Split Position menu choice is only av
To Adjust Split Screen Position  
1. Highlight Split Position on the Sonar X-Pre
2. Use the RIGHT 4-WAY Cursor Control key to
a Combo View. (Left,30, 40, 50, 60, 70, Righ
49  
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UPPER RANGE  
LOWER RANGE  
(Advanced: Sonar, Split Sonar and Active Sonar Side Views only)  
Lower Range sets the deepest depth range that  
will be displayed. Automatic is the default setting. When in automatic mode, the lower  
range will be adjusted by the unit to follow the bottom. Selecting a specific setting  
mode. Use both Upper and Lower Range together  
ually when looking for fish or bottom structure.  
Upper Range sets the shallowest depth range that will be displayed on the Sonar,  
Split Sonar and Active Sonar Side Views. The Upper Range menu choice is available  
when User Mode is set to Advanced (see S
be accessed from the Sonar, Split Sonar a
is often used with Lower Range.  
ht corner of the screen when you start manually  
e that you are in Manual mode.  
For example, if you are only interested in the a
set the Upper Depth Range to 20 and the Low
then show the 30 foot area between 20 and 50
(assuming the bottom is deeper than 50 feet
between 20 and 50 feet.  
et of water but are only interested in the first 30 feet  
uld set the Lower Depth Range limit to 30. The display  
wing you to see a more detailed view than you would  
he bottom.  
NOTE: A minimum distance of 10 feet wil
Lower Range regardless of the manual se
eet will be maintained between the Upper and  
ings entered manually.  
To adjust the Upper Range:  
1. Make sure you are in Advanced Mode
X-Press™ Menu.  
Sonar X-Press™ Menu.  
Cursor Control keys to increase or decrease the  
10 to 2500 feet for 937c DF Combo and 931c DF  
37c Combo and 931c models, 3 to 762 meters for  
models, 3 to 304 meters for 937c Combo and 931c  
only], Default = AUTO)  
2. Use the LEFT or RIGHT 4-WAY Curso
Upper Range setting. (0 to 2490 fee
0 to 990 feet for 937c Combo and 93
Combo and 931c DF models or 0 t
models [International models only],
50  
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CHART SPEED  
BOTTOM LOCK  
(Sonar Zoom View only)  
Chart Speed determines the speed at which the  
sonar information moves across the display, and consequently the amount of detail  
shown. A faster speed shows more information in the Sonar Views and is preferred by  
most anglers; however, the sonar information
slower speed keeps the information on the disp
details become compressed and may be difficult
Speed setting, the RTS® Window will update at
depth conditions. Adjust Chart Speed to your per
Bottom Lock changes the mode of the Zoomed view in the Sonar Zoom View.  
Bottom Lock on the Sonar X-Press™Menu.  
or Control keys to change the Bottom Lock  
).  
Bottom Range X-Press menu choice will be  
u to control the height above the bottom  
(10 - 60 feet, 2-10 fathoms, or 3-20 meters  
To adjust the Chart Speed:  
1. Highlight Chart Speed on the Sonar X-Pres
2. Use the LEFT or RIGHT 4-WAY Cursor Control
Speed setting. (1-9, Ultra, where 1 = Slow, 9 =
AR COLORS  
ZOOM LEV
(Sonar Zoom Vie
Colors allows you to select which color  
y.  
Zoom Level sets the magnification level for the So
on the Sonar X-Press™ Menu when the Sonar Zoo
models. Use Zoom to increase the display resoluti
very close together.  
X-Press™menu.  
or Control keys to change the color palette.  
ault = Standard)  
To adjust the Zoom Level:  
1. Highlight Zoom Level on the Sonar X-Press
2. Use the LEFT or RIGHT 4-WAY Cursor Con
setting for the Sonar Zoom View. (2x, 4x, 6
NOTE: The Zoom Preview Box tracks the bottom and cannot be moved by the user.  
51  
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NAVIGATION X-PRESS™ MENU  
ACTIVE SIDE  
(937c DF Combo and 937c Combo models only)  
Active Side allows you to select which side of a  
Combo View will be active; key presses will only affect the active side of the screen.  
When a menu is displayed, the non-active side of the screen will be grayed out; at any  
to the active side. Combo Views usually display  
’s Eye usually on the right. The Active Side menu  
bo View is active.  
The Navigation X-Press™ Menu provides access  
to the settings most frequently used. Press the  
MENU
Chart o
Eye Co
X-Press
NOTE: M
settings
navigati
avigation X-Press™ Menu.  
Control key to change which side is active. (Left,  
NOTE: Y
Right to
Combo
SPLIT POSITION  
Split Position allows you to adjust what  
by the left side of any Combo View; each view may  
t be in a specific view to adjust the screen size for  
tes the percentage taken up by the left side of the  
left side of the screen to its smallest setting. The  
ailable when a Combo View is active.  
Navigation X-Press™ Menu  
Navigation X-Press™ Menu.  
Control key to change the size of the left side of a  
0, 70, Right, Default = 50)  
52  
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SAVE CURRENT TRACK  
Save Current Track allows you to save the current  
SAVE CURRENT ROUTE  
(Only when navigating)  
track being displayed. After the current track is saved, a new current track is started.  
Save Current Route allows you to save the current route being displayed. This menu  
choice will only appear when you are currently navigating a route.  
To Save Current Track:  
1. Highlight Save Current Track on the Naviga
e Navigation X-Press™ Menu.  
2. Use the RIGHT 4-WAY Cursor Control key to
l key to initiate saving the current route.  
3. The Confirm dialog box will appear. To
RIGHT Cursor key once more. To cancel
LEFT Cursor key.  
ear. To save the current route, press the  
ancel saving the current route, press the  
CLEAR CUR
Clear Current
track being displayed and start a new track at the
NEXT WAYPOINT  
hen navigating)  
aypoint from the current route. This menu  
ntly navigating a route.  
To Clear Current Track:  
1. Highlight Clear Current Track on the Navig
2. Use the RIGHT 4-WAY Cursor Control key to
e Navigation X-Press™ Menu.  
3. The Confirm dialog box will appear. To
RIGHT Cursor key once more. To cancel c
LEFT Cursor key.  
l key to initiate skipping the next waypoint.  
To skip the next waypoint, press the RIGHT  
kipping the next waypoint, press the LEFT  
53  
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CANCEL NAVIGATION  
(Only when navigating)  
REMOVE GRID  
(Only if a Grid is active)  
Cancel Navigation discards the current route and exits Navigation Mode. This menu  
choice will only appear when you are currently navigating a route. This will not delete  
a previously-saved route.  
Remove Grid removes the waypoint grid from the display. This menu choice will only  
appear when a grid has already been applied to a waypoint.  
To Cancel Navigation:  
Navigation X-Press™ Menu.  
1. Highlight Cancel Navigation on the N
ontrol key to remove the grid.  
2. Use the RIGHT 4-WAY Cursor Control
3. The Confirm dialog box will appear. T
key once more. To avoid canceling na
REMO
(Only if a
Remove Target removes the waypoint targ
only appear when a target has already been
To Remove a Target:  
1. Highlight Remove Target on the Nav
2. Use the RIGHT 4-WAY Cursor Control
54  
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SONAR MENU TAB  
Press the MENU key twice to access the Main  
Menu System and then press the RIGHT Cursor  
key to select the Sonar tab.  
BEAM SELECT  
(937c DF Combo and 931c DF models only)  
Beam Select sets which sonar returns from the transducer will be displayed on the screen.  
ou have a 937c DF Combo or 931c DF model.  
NOTE: Menu c
settings such a
User mode or w
m both beams are blended. The Split Sonar  
urns from each beam in their respective  
wn in the Sonar View. The RTS® Window in  
from the 200 kHz narrow beam.  
from the 200 kHz narrow beam will be  
r View will continue to display returns from  
The RTS® Window in the Sonar View will  
ow beam.  
50 kHz wide beam will be displayed in the  
inue to display returns from both beams in  
ow will display the returns from the 50 kHz  
main menu.  
r Control keys to select either the 200 kHz  
00/50 kHz beam. (200/50 kHz, 200 kHz,  
Sonar Menu  
55  
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93x_Man_531370-1_A - vs4.qxd 2/18/2005 11:12 AM Page 61  
FISH ID+™  
Fish ID+™ uses advanced signal processing to  
interpret sonar returns, and will display a Fish Symbol when very selective  
requirements are met. When a fish is detected, a fish icon and its depth are displayed  
above the return that has been classified as
represent the intensity of the sonar return, a
DualBeam PLUS™ sonar models represent
beam as orange fish symbols, and represent
as blue fish symbols.  
r Cone and Fish Arches  
ar main menu.  
Y Cursor Control keys to turn the Fish ID+™  
ault = Off)  
200 kHz, narrow beam  
orange fish symbols  
SH ID SENSITIVITY  
When Fish ID+™ is turned off, the 900 Series
display. These returns will often result in "
potential targets. Due to the transducer be
as the fish moves into the beam, and then
Fish Arch when this distance change is show
and the position of the fish within the sona
sh ID Sensitivity adjusts the threshold of the Fish  
g a higher setting allows weaker returns to be  
entifying smaller fish species or baitfish. Selecting  
from weak sonar returns. This is helpful when  
ensitivity is used in conjunction with Fish ID+™.  
itivity to affect the ability of the 900 Series™ to  
ing:  
n the Sonar main menu.  
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Fish Sensitivity  
setting. (Low = 1, High = 10, Default = 5)  
56  
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REAL TIME SONAR (RTS®) WINDOW  
BOTTOM VIEW  
RTS® Window sets the RTS® Window to either  
Wide or Narrow, or turns it off in the Sonar View. The RTS® Window always updates at  
the fastest rate possible and only displays returns that are within the transducer beam.  
(See Getting Started - Using Your 900 Series™: Rea
information.)  
Bottom View selects the method used to  
represent bottom and structure on the display. Structure ID® represents weak returns  
in blue and strong returns in red. WhiteLine® highlights the strongest sonar returns in  
his has the benefit of clearly defining the  
ation for more information.  
To change th
r Main Menu.  
1. Highlight
menu.  
Control keys to change the Bottom View  
fault = Structure ID)  
2. Use the L
keys to ch
(Wide, Narro
RTS® Window (Wide)  
M WIDTH  
oom View only)  
th of the Zoomed Sonar (the left-hand side  
Main menu.  
RTS® Window (Narrow)  
or Control keys to change the width of the  
Wide, Default = Narrow)  
RTS® Window (Off)  
57  
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50 KHZ SENSITIVITY  
(Advanced, 937c DF Combo and 931c DF models only)  
SURFACE CLUTTER  
(Advanced)  
50 kHz Sensitivity changes the sensitivity of the 50 kHz beam. Increasing the 50 kHz  
Sensitivity will display additional weak returns and decreasing the 50 kHz Sensitivity  
will display fewer weak returns. The 50 kH
when User Mode is set to Advanced (see Se
Surface Clutter adjusts the filter that removes surface clutter noise caused by algae  
and aeration. The lower the setting, the less surface clutter will be displayed. The  
ble when User Mode is set to Advanced (see Setup  
To change the Surface Clutter setting:  
To set the 50 kHz Sensitivity:  
1. Make sure you are in Advanced User Mode, then  
highlight Surface Clutter on the Sonar main menu.  
1. Make sure you are in Advanced User
on the Sonar main menu.  
2. Use the LEFT or RIGHT 4-WAY Cursor Control  
keys to change the Surface Clutter setting. (Low =  
2. Use the LEFT or RIGHT 4-WAY Cursor C
(-10 to +10, Default = 0)  
1 to High = 10, Default = 5)  
DEPTH
NOISE FILTER  
(Advance
Advanced)  
Depth Lines divide the display into four e
horizontal depth lines. The depth of each li
can either turn Depth Lines On or Off. The D
User Mode is set to Advanced (see Setup M
ter to limit interference on the display from sources  
or other sonar devices. The Noise Filter menu choice  
Advanced (see Setup Menu Tab: User Mode).  
ring; Low, Medium and High settings add progressive  
deep water situations, the High setting may actually  
find the bottom.  
To cha
1. Mak
then h
menu.  
ed User Mode, then highlight Noise Filter on the  
2. Use
keys to
(Off, On, Default = On)  
Depth Lines  
Y Cursor Control keys to change the Noise Filter  
setting. (Off, Low, Medium, High, Default = Off)  
58  
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MAX DEPTH  
(Advanced)  
WATER TYPE  
(Advanced)  
Max Depth adjusts the maximum depth of operation. The performance of your 900  
Series™ can be tuned to the maximum depth you will be fishing in by setting the Max  
Depth. When a maximum depth is set, your 900
sonar data below that depth, thus increasing ove
is set to Auto, the 900 Series™ will acquire bott
capacity of the unit). If the bottom is deeper tha
depth readout will flash, indicating that the 900
The Max Depth menu choice is available when
Setup Menu Tab: User Mode).  
Water Type configures your unit for operation in fresh or salt water. The Water Type menu  
choice is available when User Mode is set to Advanced (see Setup Menu Tab: User Mode).  
red a large fish might be 2 to 10 times bigger  
on the type of fish you are seeking). The salt  
fish size adjustment to account for this. Also,  
ely, especially in salt water, as this affects the  
er Mode, then highlight Water Type on the  
To change the Max Depth setting:  
1. Make sure you are in Advanced User Mod
Sonar main menu.  
or Control keys to change the Water Type  
2. Use the LEFT or RIGHT 4-WAY Cursor Con
setting. (AUTO, 10 to 2500 feet for 937c D
1000 feet for 937c Combo and 931c model
and 931c DF models, 3 to 330 meters
[International models only], Default = AUT
NSDUCER SELECT  
ucer Select allows you to select which  
or Dual 50/200 Beam.  
ond to the transducer type connected to your  
Combo or 931c model) control head, you will  
am in order for your control head to work  
Sonar Main menu.  
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the transducer  
selected. (Dual 50/200, Single Beam, Default = Dual 50/200)  
59  
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COLOR BAR  
Color Bar allows you to display or suppress the  
NAVIGATION MENU TAB  
(With 937c DF Combo and 937c Combo models only)  
display of the color bar shown in the full screen Sonar View.  
Press the MENU key twice to access the Main  
Menu System, then press the RIGHT cursor key to  
elect the Navigation tab.  
To change the display of the Color Bar:  
1. Highlight Color Bar on the Sonar Mai
NOTE: Menu choices will vary depending on system  
ettings.  
2. Use the LEFT or RIGHT 4-WAY Cursor
color bar. (Off, On, Default = On)  
TEMP
(Sonar V
Temperature Graph allows you to display o
the main Sonar View to show temperature
To change the display of the Temperature G
1. In the Sonar View, highlight Tempera
2. Use the LEFT or RIGHT 4-WAY Cursor
temperature. (Off, On, Default = Off)  
60  
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Edit allows you to choose from a list of previously-saved waypoints, then edit the  
Name, Position (Latitude and Longitude) and select the Icon that will be used to  
represent the waypoint in the Chart and Combo Views.  
TRACKS  
Tracks allows you to view the Tracks submenu.  
To view the Tracks Submenu:  
Delete allows you to delete a waypoint from the list of saved waypoints.  
1. Highlight Tr
start navigation toward that waypoint, or  
Tracks Submenu  
nt route.  
2. Use the RIG
the Tracks sub
ypoint selected from the list of waypoints.  
aypoint selected from the list of waypoints.  
The Tracks Submenu contains the following menu c
Edit allows you to select a previously-saved track and
Delete allows you to delete a track from a list of prev
Visibility allows you to display or hide each saved tra
TES  
allows you to view the Routes submenu.  
w the Routes Submenu:  
WAYPOIN
light Routes on the Navigation main menu.  
Waypoints a
submenu.  
the RIGHT 4-WAY Cursor Control keys to view  
utes submenu.  
To view the W
g menu choices:  
1. Highlight
menu.  
oute and add waypoints to it immediately.  
ute and edit its name and the waypoints on it.  
list of previously-saved routes.  
2. Use the RIG
the Waypoint
Waypoints Submenu  
ved route to use as the current route; this  
s route. Routes can be traveled in either the  
The Waypoints Submenu contains the following m
Create allows you to create a new waypoint and
position will be used as the default, but you c
position. The Icon used to represent the waypoint in the Chart and Combo Views can  
also be changed.  
Iilie, including the distance and bearing from  
each waypoint to the next.  
61  
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CHART ORIENTATION  
TRACKPOINT INTERVAL  
Chart Orientation allows you to select whether  
the views containing charts should be drawn North-Up or Course-Up.  
Trackpoint Interval allows you to select the time  
period between trackpoints. The current track can only contain up to 2000 trackpoints, so  
longer time periods cause the track to extend back further in time, but will be less detailed.  
To change the Chart Orientation setting:  
njunction with Track Min Distance. Both conditions  
ded to the current track.  
1. Highlight Chart Orientation on the N
2. Use the LEFT or RIGHT 4-WAY Cu
Orientation setting. (North-Up, Cours
tting:  
n the Navigation main menu.  
NOTE: The Chart Orientation setting does not
Y Cursor Control keys to change the Trackpoint  
econds, 10 seconds, 15 seconds, 30 seconds or 60  
NORT
North
displayed with one of two orientations: Tru
ng both Trackpoint Interval and Track Min Distance to  
the track resolution.  
To change the North Reference setting:  
TRACK MIN DISTANCE  
Advanced)  
1. Highlight North Reference on the Na
2. Use the LEFT or RIGHT 4-WAY Cursor C
setting. (True, Magnetic, Default = Tr
a minimum distance of travel before a trackpoint  
onjunction with Trackpoint Interval. Both conditions  
ded to the current track.  
TROLL
Trolling
orientation of the trolling grid in degrees, wh
South, East, West alignment. See Waypoints
nce setting:  
ed User Mode, then highlight Track Min Distance  
.  
To change the Trolling Grid Rotation setting
ursor Control keys to change the Track Min Distance  
1. Highlight Trolling Grid Rotation on th
setting. (1 to 300 feet or 1 to 100 meters [International Units Only], Default = 16 ft, 5 m)  
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Trolling Grid  
Rotation setting. (0° to 89°, Default = 0°)  
NOTE: During slow travel or drift, setting both Trackpoint Interval and Track Min Distance to  
small values will allow you to increase the track resolution.  
62  
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MAP DATUM  
(Advanced)  
DELETE ALL NAV DATA  
(Advanced)  
Map Datum allows you to change the map coordinate system used by the 900 Series™  
Delete All Nav Data allows you to delete all saved Tracks, Waypoints and Routes. This  
to match those of a paper map.  
menu choice should be used with caution.  
To change the Map Datum setting:  
1. Make sure you are in Advanced User Mod
Navigation main menu.  
r Mode, then highlight Delete All Nav Data  
2. Use the LEFT or RIGHT 4-WAY Cursor Con
setting. (Default = WGS 84)  
l key to delete all navigation data.  
EXPORT A
(Advanced)  
Export All Nav Data allows you to export all save
MMC/SD card.  
To Export All Navigation Data:  
1. Make sure you are in Advanced User M
MMC/SD card is installed in the slot, then
Navigation main menu.  
2. Use the RIGHT 4-WAY Cursor Control key to
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CHART MENU TAB  
CHART DETAIL LEVEL  
(With 937c DF Combo and 937c Combo models only)  
Chart Detail Level allows you to select how much  
chart detail you want displayed on the Navigation Views. Basic shows land areas,  
ports, obstructions and restricted areas. Navigation shows navaids, landmarks,  
addition to the Basic information. Underwater  
underwater wrecks, tides and currents in addition  
ation. All shows roads, buildings, railways, and  
sic, Navigation and Underwater information.  
Press the MENU key twice to access the Main  
Menu System and then press the RIGHT Cursor  
key to s
NOTE: M
settings
User mo
ing:  
NOTE: T
and 937
n the Navigation main menu.  
Chart Menu  
Cursor Control keys to change the Chart Detail  
n, Underwater, All, Default = All)  
ilable with optional-purchase MMC/SD cards.  
MAP BORDERS  
Map Borders allows you to display or hide map  
rea which contains a different map.  
To change the Map Borders setting:  
1. Highlight Map Borders on the Navigation main  
menu.  
2. Use the LEFT or RIGHT 4-WAY Cursor Control  
keys to change the Map Borders setting. (Hidden,  
Visible, Default = Hidden)  
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LAT/LON GRID  
SHADED DEPTH  
Lat/Lon Grid allows you to display or hide a grid  
Shaded Depth allows you to change the depth  
showing latitude and longitude lines.  
used for shading on the chart views.  
To change the Lat/Lon Grid setting:  
1. Highlight Lat/Lon Grid on the Navigation
igation main menu.  
rsor Control keys to change the Shaded  
1 to 20 Meters [International Units Only],  
2. Use the LEFT or RIGHT 4-WAY Cursor Cont
setting. (Hidden, Visible, Default = Hidden
SPOT SOU
Spot Soundin
soundings, which are depth measurements show
IMULATION POSITION  
ed)  
set the position of the boat used in the  
NOTE: Spot Soundings are only available with option
To change the Spot Soundings setting:  
1. Highlight Spot Soundings on the Navigatio
o the coordinates from where you want  
2. Use the LEFT or RIGHT 4-WAY Cursor Contro
setting. (Hidden, Visible, Default = Hidden
this procedure to work.  
User Mode, then highlight Set Simulation  
nu.  
rol key to change the Simulation Position  
will appear to allow you to change your  
If the cursor was not active before you  
an error message. Exit the menu, set the  
cursor, then try again.  
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SET MAP OFFSET  
ALARMS MENU TAB  
From any view, press the MENU key twice to  
access the Main Menu System. The Alarms tab  
will be the default selection.  
(Advanced)  
Set Map Offset allows you to change the map offset used by the 900 Series™.  
NOTE: The Map Offset will be applied to all m
correction. The Map Offset should be cleared i
NOTE: When an alarm is triggered, you can silence it  
by pressing any key. The alarm will be silenced, and  
will not be triggered again until a new instance of the  
alarm condition is detected.  
To change the Map Offset setting:  
1. Activate the cursor and move it locat
NOTE: The cursor must be active in order for th
2. Make sure you are in Advanced Use
the Navigation main menu.  
3. Use the RIGHT 4-WAY Cursor Control
dialog box will appear to allow you
choice. If the cursor was not active be
an error message. Exit the menu, set
CLEAR
(Advan
Clear Map Offset allows you to clear th
accessible if a Map Offset is currently active
To Clear Map Offset:  
1. Make sure you are in Advanced User
the Navigation main menu.  
2. Use the RIGHT 4-WAY Cursor Control key to clear the Map Offset.  
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DEPTH ALARM  
LOW BATTERY ALARM  
Depth Alarm sounds when the depth becomes  
equal to or less than the menu setting.  
Low Battery Alarm sounds when the input  
battery voltage is equal to or less than the menu setting. The battery alarm will only  
sound for the battery that is connected to the 900 Series™. The Low Battery Alarm  
ery voltage drops below the safety margin  
f you are running a trolling motor (battery  
Battery Alarm to sound before the battery  
tart your main, gasoline-powered engine.  
To change the Depth Alarm setting:  
1. Highlight Depth Alarm on the Alarms mai
2. Use the LEFT or RIGHT 4-WAY Cursor Cont
setting. (OFF, 1 to 100 feet, or 0.5 to 30
Default = OFF)  
Alarms main menu.  
FISH ID AL
or Control keys to change the Low Battery  
ault = Off)  
Fish ID Alar
detects fish that correspond to the alarm setting
ID+™ is on.  
P ALARM  
For example, if you've set the Fish ID Alarm to sound f
sound when a large-sized fish is detected.  
Alarm sounds when the water temperature  
Temp Alarm setting, which is either set in  
al models only]. For example, if the Temp  
ater temperature falls from 60° to 58°, the  
ater temperature rises from 56° to 58°, the  
To change the Fish ID Alarm setting:  
1. Highlight Fish ID Alarm on the Alarms mai
2. Use the LEFT or RIGHT 4-WAY Cursor Cont
setting. (Off, All, Large/Medium, Large, De
s main menu.  
Off  
Large  
or Control keys to change the Temp Alarm  
0-50 [Celsius [International models only]],  
Default = Off)  
Large/Medium  
All  
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OFF COURSE ALARM  
(With 937c DF Combo and 937c Combo models only)  
ARRIVAL ALARM  
(With 937c DF Combo and 937c Combo models only)  
Off Course Alarm sounds when the boat has moved too far off course based on the  
menu setting when navigating. Off Course Alarm allows you to set how far the boat is  
allowed to move off course before the Off C
Arrival Alarm sounds when the boat has either exceeded the distance to the  
destination waypoint, or has entered the Arrival Alarm Circle, based on the menu  
rm allows you to set how close the boat must be  
the Arrival Alarm will sound.  
Alarms main menu.  
Cursor Control keys to change the Arrival Alarm  
, 10 to 1000 meters [International models only],  
2
DRIFT ALARM  
With 937c DF Combo and 937c Combo models only)  
s exceeded the distance from the boat’s anchored  
ng. Drift Alarm allows you to set the size of a  
d position; if the anchored boat drifts outside of  
ound.  
Arrival Alarm Circle  
1
To change the Drift Alarm setting:  
1. Highlight Drift Alarm on the Alarms main  
menu.  
To change the Off Course Alarm setting:  
1. Highlight Off Course Alarm on the Al
2. Use the LEFT or RIGHT 4-WAY Cursor Control  
keys to change the Drift Alarm setting. (Off, 30 to  
3000 feet, 10 to 1000 meters [International  
models only], Default = Off)  
2. Use the LEFT or RIGHT 4-WAY Curs
Alarm setting. (Off, 30 to 3000 feet
only], Default = 300 ft, 100 m)  
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ALARM TONE  
Alarm Tone selects the pitch of the alarm sound. A  
brief tone will be produced as you adjust the Alarm Tone so that you can select the  
tone that you can hear best.  
To change the Alarm Tone setting:  
1. Highlight Alarm Tone on the Alarms main
2. Use the LEFT or RIGHT 4-WAY Cursor Con
setting. (High, Medium, Low, Default = Me
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SETUP MENU TAB  
UNITS - DEPTH  
From any view, press the MENU key twice to  
access the tabbed Main Menu System, then press  
the RIGHT cursor key until the Setup tab is  
selecte
Units - Depth selects the units of measure for all  
depth-related readouts.  
Setup menu.  
NOTE: M
settings
User mo
control h
Cursor Control keys to change the Units - Depth  
l models only], Feet, Fathoms; Default is Meters  
Feet for Domestic models)  
UNITS - TEMP  
International only)  
measure for all temperature-related readouts.  
Setup menu.  
Cursor Control keys to change the Units - Temp  
efault = Celsius)  
Setup Menu  
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UNITS - DISTANCE  
USER MODE  
(With Speed input only)  
User Mode sets the menu system to either  
Normal or Advanced. When set to Normal, only the basic menu options are shown.  
When set to Advanced (default setting), additional menu choices are available.  
Units - Distance selects the units of measure for all distance-related readouts.  
To change the Units - Distance setting:  
1. Highlight Units - Distance on the Setup me
menu.  
2. Use the LEFT or RIGHT 4-WAY Cursor Contro
setting. (Domestic Models: Statute Miles
Miles; International Models: Meters/K
Feet/Statute Miles, Feet/Nautical Miles; D
or Control keys to change the User Mode  
= Advanced)  
GUAGE  
UNITS - SP
(With Speed inp
tional Only)  
menus. International models only.  
Units - Speed selects the units of measure for spe
To change the Units - Speed setting:  
enu.  
1. Highlight Units - Speed on the Setup menu
sor Control keys to change the Language  
2. Use the LEFT or RIGHT 4-WAY Cursor Cont
setting. (kph [International models only], m
models and mph for Domestic models)  
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93x_Man_531370-1_A - vs4.qxd 2/18/2005 11:12 AM Page 77  
TRIPLOG RESET  
(With Speed Input Only)  
SELECT READOUTS  
(Advanced)  
Select Readouts allows you to customize the information  
displayed in individual digital readouts on the left side of  
ws, including suppressing a particular readout so  
ing is displayed; the ability to customize readouts  
on the view and whether you are navigating. This  
d feature allows you to select what data will be  
d in each of 5 fixed-position data windows  
at the left edge of the Sonar View screen, or  
a particular data window will be turned off,  
g nothing in that area; you can access this menu  
ly when in Advanced User Mode (see Setup Menu  
Mode.)  
Triplog Reset resets the Triplog to zero. The Triplog provides the following information:  
timer for elapsed time, distance traveled since last reset, and average speed.  
To Reset Triplog:  
1. Highlight Reset Triplog on the Setup
2. Use the RIGHT 4-WAY Cursor Control
3. The Confirm dialog box will appear. T
key once more. To cancel Reset Triplo
RESTO
Restore
s from supported accessories such as a Speed  
er be empty (Off) or contain one of the following:  
factory defaults. Use this menu choice with
To Restore Defaults:  
Temperature  
1. Highlight Restore Defaults on the Se
Time + Date  
Triplog  
2. Use the RIGHT 4-WAY Cursor Control
Water Speed (only with a Speed accessory)  
3. The Confirm dialog box will appear. T
key once more. To cancel Restore Def
r, then this refers to the speed detected by the GPS  
n this refers to the speed of the paddlewheel)  
On Sonar-only views, as long as you are not  
izable.  
any view with a chart, as long as you are not  
navigating, two of the readouts are not customizable: the 2nd box always displays  
Heading, while the 5th box always displays Speed. On the Bird’s Eye View, when you  
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are not navigating, there are four fixed info boxes that show Depth, Heading, Position  
(Lat/Lon) and Speed. When you are navigating in the Bird's Eye View, there are two  
columns of four boxes. The first column shows Depth, Time To Go (TTG), Position  
(Lat/Lon), and Speed. The second column shows Cross Track Error (XTE), Heading,  
Bearing, and Distance To Go (DTG).  
All Views, Navigating: When you are navigating
screen views with a Sonar display) cannot be cust
readout info box, which is still customizable. In an
second readout box shows Heading, the third b
divided to show Cross Track Error (XTE) and Dista
divided to show Time To Go (TTG) and Speed.  
Sonar View  
r Mode, then highlight Select Readouts on  
l key to initiate this procedure.  
appear, showing a list of all Readouts. Use  
ect a particular Readout position, then use  
nge what will be displayed at that position.  
ion, Off, Speed, Temperature, Time+Date,  
Default Sonar Vie
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DEPTH OFFSET  
(Advanced)  
SPEED CALIBRATION  
(Advanced, with Speed paddlewheel only)  
Depth Offset will adjust the digital depth readout to indicate depth from the waterline  
or boats keel. Enter a positive vertical measurement from the transducer to the  
waterline to read the depth from the waterl
from the transducer to keel to read the d
available only when in Advanced User Mod
Speed Calibration will adjust the speed readout by the percentage entered, and  
will appear in the menu if a Speed accessory is connected and the paddlewheel has  
is in Advanced User Mode (see Setup Menu Tab:  
ing:  
To change the Depth Offset setting:  
d User Mode, then highlight Speed Calibration on  
1. Make sure you are in Advanced User
Setup menu.  
AY Cursor Control keys to change the Speed  
20%, Default = 0%)  
2. Use the LEFT or RIGHT 4-WAY Curso
setting. (-10.0 to +10.0 feet or -3 to 3 m
= 0.0, or Off)  
LOCAL TIME ZONE  
Advanced, with 937c DF Combo and 937c Combo models only)  
TEMP
one in reference to the time reported by the GPS  
as a Digital Readout on the Sonar View (see Select  
ble only when in Advanced User Mode (see Setup  
(Advance
Temp Offset will adjust the temperatur
menu choice is available only when in Ad
User Mode.)  
To change the Temp Offset setting:  
d User Mode, then highlight Local Time Zone on  
1. Make sure you are in Advanced User
Setup menu.  
Cursor Control keys to change the Local Time Zone  
n Standard Time).  
2. Use the LEFT or RIGHT 4-WAY Curso
setting. (-10.0 to +10.0 degrees, Defa
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DAYLIGHT SAVING TIME  
(Advanced, with 937c DF Combo and 937c Combo models only)  
TIME FORMAT  
(Advanced)  
(937c DF Combo and 937c Combo Models, International Only)  
Daylight Saving Time adjusts the time display to account for local Daylight Saving  
Time. Selecting On adds one hour to the time display adjusted for your local time  
zone. Selecting Off leaves the time display as ad
menu choice is available only when in Advance
User Mode.)  
Time Format changes the time format used by the unit This menu choice is available  
only when in Advanced User Mode (see Setup Menu Tab: User Mode.) International  
our or 24 hour format for the time of day  
s a Digital Readout on the Sonar View (see  
To change the Daylight Saving Time setting:  
1. Make sure you are in Advanced User Mode
on the Setup menu.  
r Mode, then highlight Time Format on the  
2. Use the LEFT or RIGHT 4-WAY Cursor Contr
On or Off. (Off, On, Default = Off)  
r Control keys to change the Time Format.  
POSITION
(Advanced, with
FORMAT  
(Advanced)  
Combo and 937c Combo Models, International Only)  
Position Format selects the format of the latit
This menu choice is available only when in Adv
Tab: User Mode.)  
d by the unit This menu choice is available  
etup Menu Tab: User Mode.) International  
at for the date display when Time + Date is  
View. (see Select Readouts).  
To change the Position Format setting:  
1. Make sure you are in Advanced User Mod
the Setup menu.  
r Mode, then highlight Date Format on the  
2. Use the LEFT or RIGHT 4-WAY Cursor Contro
(dd.ddddd°, dd°mm.mmm', or dd°mm'ss",
or Control keys to change the Date Format.  
, Default = mm/dd/yy)  
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NMEA OUTPUT  
(Advanced)  
SONAR  
(937c DF Combo and 937c Combo models only)  
NMEA Output turns the NMEA output on or off. This menu choice is available only  
when in Advanced User Mode (see Setup Menu Tab: User Mode.)  
Sonar deactivates Sonar and removes the Sonar Views from the view rotation.  
The following NMEA sentences are output:  
menu.  
DPT- Depth  
MTW - Water Temperature  
GLL - Lat/Lon Position  
Cursor Control keys to change the Sonar to On or  
GGA - GPS Fix Data  
RMC - Recommended Minimum Specific GN
VTG - Course Over Ground and Ground Spe
ZDA - Time and Date  
When navigating, the following NMEA sen
APB - Autopilot Sentence B  
BWR - Bearing and Distance to Waypoint  
RMB - Recommended Minimum Navigation
To turn NMEA Output on or off:  
1. Make sure you are in Advanced User
Setup menu.  
2. Use the LEFT or RIGHT 4-WAY Cursor
to On or Off (Off, On, Default = Off).  
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VIEWS MENU TAB  
ACCESSORIES MENU TAB  
From any view, press the MENU key twice to access the  
tabbed Main Menu System, then press the RIGHT 4-  
WAY Cursor Control key until the Views tab is selected.  
This menu tab a
either hidden or
will be removed
Hidden and will
is set to Visible.
From any view, press the MENU key twice to access the tabbed Main Menu System,  
then press the RIGHT cursor key until the Accessories tab is selected.  
ory Bus, no menu choices will appear under  
hed, however, additional menu choices that  
matically. See the Operations Manual that  
ormation.  
• Bird’s Eye View  
(937c DF Combo
• Chart/Bird’s Eye
(937c DF Combo
• Chart View  
Accessories Menu  
(with accessories attached)  
(937c DF Combo
• Chart/Sonar Co
(937c DF Combo
• Sonar View  
• Sonar Zoom Vie
and the SmartCast® Wireless Sonar Link (WSL)  
website at www.humminbird.com or contact  
468 for additional details.  
Views Menu  
• Split Sonar View  
(937c DF Combo
• Self Test  
• Accessory Test  
• GPS Diagnostic
(937c DF Combo
To Change the View Status of Any View:  
1. Highlight the View main menu tab.  
2. Use the UP or DOWN 4-WAY Cursor Control keys to select a View.  
3. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the status of the  
view from Hidden to Visible or vice versa.  
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TROUBLESHOOTING  
Before contacting the Humminbird® Customer Resource Center, please read the  
following section. Taking the time to review these troubleshooting guidelines may  
allow you to solve a performance problem yourself, and therefore avoid sending your  
unit back for repair.  
900 Series™ Doesn’t Power Up  
If your 900 Series™ doesn’t power up, use t
it for specific confirmation details, making s
the power cable is properly connected
the power cable is wired correctly, wit
to negative terminal or ground  
the fuse is operational  
the battery voltage of the power conn
Correct any known problems, including rem
or wiring, or actually replacing the battery i
900 Series™ Defaults to Simulator with
A connected and functioning transducer w
go into Normal operating mode automatica
it goes into Simulator mode automatica
connected, this means that the control hea
the following troubleshooting tasks:  
Using the Installation Guide that als
make sure that the transducer cable
Reconnect if necessary, and power up
the problem.  
Replace the non-functioning transd
available and power up the control head again.  
Check the transducer cable. Replace the transducer if the cable is damaged or  
corroded.  
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DISPLAY PROBLEMS  
There are several main conditions or sources of possible interference that may cause problems with the quality of the information displayed on the control head. Look in the  
following table for some symptoms of display problems and possible solutions:  
Problem  
The control head loses power at high speeds.  
be protecting itself using its over-voltage  
When the boat moves at higher speeds, the  
bottom disappears or suddenly weakens, or  
the display contains gaps.  
g around the transducer (cavitation) may  
Guide for suggestions on adjusting the  
. See Finding the Cause of Noise for more  
There are no fish detected, even when you  
know they are in the water under the boat,  
or sonar readings seem weak or faulty.  
mounted at an angle, not straight down),  
d inside a hull that is too thick for proper  
tight, or because the transducer is dirty.  
er, and make sure the transducer is clean.  
. See Finding the Cause of Noise for more  
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FINDING THE CAUSE OF NOISE  
Electrical noise usually affects the display with many black dots at high speeds, and high sensitivity readings. One or more of the following sources can cause noise or interference:  
Possible Source of Noise  
Isolation  
Other electronic devices  
then turn them on one at a time to see if the  
The boat’s engine  
ease the RPMs while the boat is in neutral and  
s when you rev the engine, the problem could  
plugs with resistor plugs, install an alternator  
the engine wiring.  
Cavitation from the boat’s propeller  
sducer is mounted at least 15” (38 cm) from the  
ducer at all times.  
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93x_Man_531370-1_A - vs4.qxd 2/18/2005 11:12 AM Page 86  
1-YEAR LIMITED WARRANTY  
HUMMINBIRD® SERVICE POLICY  
We warrant the original retail purchaser that products made by Humminbird® have  
been manufactured free from defects in materials and workmanship. This warranty is  
effective for one year from the date of original retail purchase. Humminbird® products  
found to be defective and covered by this warran
charge at Humminbird®’s option and returned
Humminbird®’s sole responsibility under this w
replacement of a product that has been de
Humminbird® is not responsible for charges co
product or reinstallation of replaced or repaired p
Even though you'll probably never need to take advantage of our incredible service  
policy, it's good to know that we back our products this confidently. We do it  
because you deserve the best. We will make every effort to repair your unit within  
f your unit at our factory. This does not  
tory. Units received on Friday are typically  
its received Monday are typically shipped  
ained technicians to meet exacting factory  
ough the same rigorous testing and quality  
ts.  
This warranty does not apply to a product that h
Improperly installed;  
Used in an installation other than that reco
and operation instructions;  
Damaged or has failed because of an accide
Repaired or modified by entities other than
ard flat rate service charge will be assessed  
ssing parts are not included). Any repairs  
warranted for an additional 90 days after  
technicians. You can contact our Customer  
rify the flat rate repair fee for your product  
Please retain your original receipt as a proof of th
for in-warranty service.  
unserviceable when replacement parts are  
n. This Service Policy is valid in the United  
nbird® products returned to our factory in  
bject to change without notice.  
THIS WARRANTY IS EXPRESSLY IN LIEU OF ANY OT
LIABILITIES ON THE PART OF HUMMINBIRD®
EXCLUSIVE REMEDY, EXCEPT FOR ANY APPLICABLE
LAW WHICH ARE HEREBY LIMITED IN DURATION
ORIGINAL PURCHASE. IN NO EVENT WILL HU
INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR
WARRANTY RELATING TO THE PRODUCTS.  
Some states do not allow limitations on an implied warranty, or the exclusion of  
incidental or consequential damages, so the above exclusions may not apply to you.  
You may also have other rights, which vary from state to state.  
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RETURNING YOUR UNIT FOR SERVICE  
900 SERIES™ ACCESSORIES  
Before sending your unit in for repair, please contact the factory, either by phone or by  
email, to obtain a Repair Authorization Number for your unit. Please have your  
product model name and serial number available before calling the factory. If you  
contact the factory by e-mail, please inclu
number in the e-mail, and use Request for R
subject header. You should include yo
subsequent communications about your un
Accessories customize the 900 Series™ to your needs and enable you to stay on the  
edge of new technology. When an accessory is connected to the 900 Series™,  
additional menus and readouts are added automatically to the Main Menu System.  
supported by your 900 Series™ include:  
onitor: purchase and plug in the WeatherSense®  
ain barometric pressure readouts and trend data  
For IN-WARRANTY service, complete the fo
e GPS Connection Cable in order to connect a  
patible device that you may already own to your  
Obtain a Repair Authorization Num
Resource Center.  
Tag product with your name, street a
Repair Authorization Number.  
ronics Association standard for data communication.  
se the Wireless Sonar Link (WSL) accessory to  
a SmartCast® Remote Sonar Sensor (RSS). Radio  
the WSL and are transmitted over the Accessory  
Include a brief written description of t
Include a copy of your receipt (to show
Return product freight prepaid to Hum
delivery confirmation.  
www.humminbird.com for additional new and  
0 Series™.  
For OUT-OF-WARRANTY service, complete t
eparate purchase. You can visit our website at  
ur Customer Resource Center at 1-800-633-1468 for  
Obtain a Repair Authorization Num
Resource Center.  
Include payment in the form of credit
order or personal check. Please do not
Tag product with your name, street a
Repair Authorization Number.  
Include a brief written description of the problem.  
Return product freight prepaid to Humminbird®, using an insured carrier with  
delivery confirmation.  
82  
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93x_Man_531370-1_A - vs4.qxd 2/18/2005 11:12 AM Page 88  
SPECIFICATIONS  
Depth Capability  
937c DF Combo/931c DF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2500 ft (780 m)  
937c Combo/931c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000 ft (330 m)  
Power Output  
937c DF Combo/931c DF . . . . . . . . . . . . . MS), 8000 Watts (Peak to Peak)  
937c Combo/931c . . . . . . . . . . . . . . . . . . . MS), 6000 Watts (Peak to Peak)  
Operating Frequency  
937c DF Combo/931c DF . . . . . . . . . . . . . Hz and 50 kHz DualBeam PLUS™  
937c Combo/931c. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 kHz Single Beam  
Area of Coverage  
937c DF Combo/931c DF. . . . . . . . . . . . . 0 kHz & 20° @ -10 dB in 200 kHz  
937c Combo/931c . . . . . . . . . . . . . . . . . . . . . . . . . . 20° @ -10 dB in 200 kHz  
Target Separation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2½ Inches (63.5 mm)  
Power Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-20 VDC  
LCD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 480V x 854H  
Transducer  
937c DF Combo/931c DF (Dual frequen. . . . . . . . . . . . . . . . . XHS-9-DB-74-T  
937c Combo/931c (Single frequency). . . . . . . . . . . . . . . . . . . . . XHS-9-20-T  
Transducer Cable Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 ft (6 m)  
NOTE: Product specifications and features are subjec
NOTE: Humminbird® verifies maximum stated depth in saltwater conditions, however actual depth performance may vary due to transducer installation, water type, thermal layers, bottom  
composition and slope.  
83  
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93x_Man_531370-1_A - vs4.qxd 2/18/2005 11:12 AM Page 89  
APPENDIX A  
Transducer Mounting Template, Single frequency: XHS-9-20-T  
Tr
Gu
04329-1  
84  
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93x_Man_531370-1_A - vs4.qxd 2/18/2005 11:12 AM Page 90  
APPENDIX B  
Transducer Mounting Template, Dual frequency: XHS-9-DB-74-T  
85  
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93x_Man_531370-1_A - vs4.qxd 2/18/2005 11:13 AM Page 91  
Contact Humminbird®  
Contact the Humminbird® Customer Resource Center  
86  
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