Radio Shack Car Stereo System PRO 2052 User Guide

20-432.fm Page 1 Friday, July 14, 2000 11:30 AM  
Owner’s Manual  
Cat. No. 20-432  
PRO-2052  
1000-Channel Dual Trunking  
TrunkTracker Home Scanner  
Please read before using this equipment.  
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NWR-SAME/Weather Alert — you  
can set the scanner to sound an alert  
when it receives NOAA’s Specific  
Area Message Encoding (SAME) cod-  
ed weather emergency signal, provid-  
ing more complete information about  
weather conditions in your immediate  
area and letting you avoid hearing  
alerts for geographical areas that do  
not interest you.  
all). As the scanner scans a bank, it  
checks the bank’s priority channel ev-  
ery 2 seconds so you don't miss trans-  
missions on that channel.  
Five Service-Search Banks — let  
you search preset frequencies in sep-  
arate public service, police, fire/emer-  
gency, aircraft, and weather banks, to  
make it easy to locate specific types of  
calls.  
Remote PC Function — lets you con-  
trol the PRO-2052 from your personal  
computer.  
HyperSearch and HyperScan  
let you set the scanner to search at up  
to 300 steps per second (in frequency  
bands with 5 kHz steps) and scan at  
up to 50 channels per second, to help  
you quickly find interesting broad-  
casts. (The normal search speed is  
100 steps per second).  
Five Scan Lists — let you store up to  
50 IDs in each tracking bank (up to a  
total of 1000).  
Triple-Conversion Circuitry — virtu-  
ally eliminates any interference from  
IF (intermediate frequency) images,  
so you hear only the selected frequen-  
cy.  
Data Signal Skip — lets you set the  
scanner to skip non-modulated or data  
signals during scanning and searches.  
This lets the scanner avoid non-voice  
signals, making a scan or search fast-  
er.  
Scan Delay — delays scanning for  
about 2 seconds before moving to an-  
other channel in conventional mode,  
so you can hear more replies that are  
made on the same channel. In trunk  
scanning mode, it delays for about 5  
seconds before moving to another ID.  
Manual Access — you can directly  
access any stored channel by entering  
that channel’s number.  
Liquid-Crystal Display — makes it  
easy to view and change program-  
ming information.  
Lock-Out Function — lets you set  
your scanner to skip over specified  
channels or frequencies when scan-  
ning or searching, and skip over IDs  
when tracking trunked systems.  
Display Backlight — makes the  
scanner easy to read in low-light situa-  
tions.  
Priority Channels — lets you pro-  
gram one channel in each bank (10 in  
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Supplied Telescoping Antenna —  
provides good reception of strong lo-  
cal signals.  
Your PRO-2052 scanner can receive  
these bands:  
Frequency  
Range (MHz)  
Types of  
Transmissions  
External Antenna Terminal — lets  
you connect an external antenna with  
a BNC connector to the scanner for  
improved reception of distant/weaker  
signals.  
29–29.7  
29.7–50  
10-Meter Ham Band  
VHF Lo  
50–54  
6-Meter Ham Band  
Aircraft  
Memory Backup — keeps the chan-  
nel frequencies stored in memory in  
the event AC power goes out.  
108–136.975  
137–144  
144–148  
148–174  
Military Land Mobile  
2-Meter Ham Band  
VHF Hi  
Key Confirmation Tones — the  
scanner sounds a tone when you per-  
form an operation correctly, and an er-  
ror tone if you make an error.  
179.75–215.75 VHF TV  
216–225  
225–400  
400–420  
1-Meter Ham Band  
Duplicate Channel Alert — warns  
you when the frequency you are stor-  
ing already exists in memory.  
UHF Aircraft  
Federal  
Government  
Disconnect Tone Detect — the scan-  
ner automatically tunes to the trunking  
data channel when it receives a dis-  
connect transmission. You can turn  
this feature off to continuously monitor  
a channel with a weak transmission  
during disconnected conversations.  
420–450  
450–470  
470–512  
70-cm Ham Band  
UHF Standard Band  
UHF “T” Band  
806–824  
851–869  
896–956  
Public Service “800”  
except  
Cellular Band  
1240–1300  
25-cm Ham Band  
Note: See “Specifications” on Page 68  
for more information about the scan-  
ner’s frequency steps.  
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• telephone conversations (cellular,  
cordless, or other private means  
of telephone signal transmission)  
FCC NOTICE  
Your scanner might cause radio or TV  
interference even when it is operating  
properly. To determine whether your  
scanner is causing the interference,  
turn off your scanner. If the interfer-  
ence goes away, your scanner is  
causing it. Try the following methods  
to eliminate the interference:  
• pager transmissions  
• any scrambled or encrypted trans-  
missions  
According to the Electronic Communi-  
cations Privacy Act (ECPA), you are  
subject to fines and possible imprison-  
ment for intentionally listening to, us-  
ing, or divulging the contents of such a  
transmission unless you have the con-  
sent of a party to the communication  
(unless such activity is otherwise ille-  
gal).  
• Move your scanner away from the  
receiver.  
• Connect your scanner to an outlet  
that is on a different electrical cir-  
cuit from the receiver.  
• Contact your local RadioShack  
store for help.  
This scanner is designed to prevent  
reception of illegal transmissions, in  
compliance with the law which re-  
quires that scanners be manufactured  
in such a way as to not be easily mod-  
ifiable to pick up those transmissions.  
Do not open your scanner's case to  
make any modifications that could al-  
low it to pick up transmissions that it is  
not legal to listen to. Doing so could  
subject you to legal penalties.  
Note: Mobile use of this scanner is  
unlawful or requires a permit in some  
areas. Check the laws in your area.  
SCANNING LEGALLY  
Your scanner covers frequencies  
used by many different groups includ-  
ing police and fire departments, ambu-  
lance services, government agencies,  
private companies, amateur radio ser-  
vices, military operations, pager ser-  
vices, and wireline (telephone and  
telegraph) service providers. It is legal  
to listen to almost every transmission  
your scanner can receive. However,  
there are some transmissions you  
should never intentionally listen to.  
These include:  
We encourage responsible, legal  
scanner use.  
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CONTENTS  
Preparation ........................................................................................................... 8  
Connecting an Antenna ................................................................................... 8  
Connecting Power ........................................................................................... 9  
Connecting an Extension Speaker ................................................................ 10  
Connecting an Earphone/Headphones ......................................................... 11  
Understanding Your Scanner ............................................................................ 12  
A Look at the Front Panel .............................................................................. 12  
A Look at the Display ..................................................................................... 14  
Understanding Banks .................................................................................... 17  
Understanding Trunking ................................................................................. 17  
Operation ............................................................................................................ 18  
Turning On the Scanner and Setting Squelch ............................................... 18  
Storing Known Frequencies into Channels .................................................... 18  
Searching Service Banks .............................................................................. 19  
Limit Search ................................................................................................... 20  
Scanning the Stored Channels ...................................................................... 21  
Manually Selecting a Channel ....................................................................... 21  
Deleting a Frequency from a Channel ........................................................... 21  
Priority ........................................................................................................... 21  
Special Features ................................................................................................ 23  
Delay ............................................................................................................. 23  
Turning Channel-Storage Banks On and Off ................................................. 23  
Locking Out Channels and Frequencies ........................................................ 23  
Turning the Key Tone On and Off ................................................................... 24  
Changing Search Speeds .............................................................................. 25  
Skipping Data Signals ................................................................................... 25  
Using NWR-SAME and Weather Alert .......................................................... 25  
Testing Weather Alert Reception ................................................................... 28  
Trunk Scanning .................................................................................................. 30  
Types of Trunking Systems ............................................................................ 30  
Setting the Scanner to the Trunk Scanning Mode ......................................... 31  
Setting Squelch for the Trunk Scanning Mode ............................................... 31  
Programming Trunked Frequencies ............................................................... 32  
Scanning a Trunked Bank .............................................................................. 33  
Monitoring IDs ............................................................................................... 37  
Channel Activity Indicators ............................................................................ 37  
Scan Lists ...................................................................................................... 37  
Scanning the Scan Lists ................................................................................ 39  
Scanning Type I and Hybrid Trunked Systems .............................................. 40  
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PC Remote Function ......................................................................................... 46  
Connecting the Scanner to a Computer ........................................................ 46  
Setting the Remote Communication Format ................................................. 46  
Turning the Remote Function On and Off ..................................................... 47  
PC to Scanner Commands ........................................................................... 47  
PC to Scanner Functions List ....................................................................... 48  
Scanner to PC Responses ............................................................................ 52  
Scanner Mode Codes ................................................................................... 53  
A General Guide to Scanning ........................................................................... 55  
Guide to Frequencies .................................................................................... 55  
Guide to the Action Bands ............................................................................ 56  
Band Allocation ............................................................................................. 57  
Frequency Conversion .................................................................................. 63  
Troubleshooting ................................................................................................. 64  
Resetting the Scanner .................................................................................. 66  
Care and Maintenance ...................................................................................... 67  
Specifications .................................................................................................... 68  
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PREPARATION  
This scanner is designed primarily for  
use in the home as a base station.  
You can place it on a desk, shelf, or  
table.  
Your scanner’s front feet fold up or  
down. Adjust them to give you the  
best view of the display.  
The scanner’s sensitivity depends on  
the antenna’s length and various envi-  
ronmental conditions. For the best re-  
ception of the transmissions you want  
to hear, adjust the antenna’s length.  
Your scanner’s display is protected  
during shipment by a piece of film.  
Peel off this film before you use the  
scanner.  
Frequency  
Antenna Length  
29–54 MHz  
Extend fully  
108–400 MHz  
Collapse one  
segment  
CONNECTING AN  
ANTENNA  
406–1300 MHz  
Collapse both  
segments  
Connecting the Supplied  
Antenna  
Connecting an Outdoor  
Antenna  
You must install an antenna before  
you can operate the scanner.  
Instead of the supplied antenna, you  
can connect an outdoor base-station  
or mobile antenna (not supplied) to  
your scanner using a BNC connector.  
Your local RadioShack store sells a  
variety of antennas. Choose the one  
that best meets your needs.  
The supplied telescoping antenna  
helps your scanner receive strong lo-  
cal signals. To install the antenna,  
thread it clockwise into the hole on the  
scanner’s top.  
When deciding on a mobile or base-  
station antenna and its location, con-  
sider these points:  
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• The antenna should be as high as  
possible on the vehicle or build-  
ing.  
Cautions:  
• Do not run the cable over sharp  
edges or moving parts that might  
damage it.  
• The antenna and its cable should  
be as far as possible from sources  
of electrical noise (appliances,  
other radios, etc.).  
• Do not run the cable next to power  
cables or other antenna cables.  
• The antenna should be vertical for  
the best performance.  
Warning: Use extreme caution  
when you install or remove an out-  
door antenna. If the antenna starts to  
fall, let it go! It could contact over-  
head power lines. If the antenna  
touches a power line, contact with  
the antenna, mast, cable, or guy  
wires can cause electrocution and  
death. Call the power company to re-  
move the antenna. DO NOT attempt  
to do so yourself.  
To connect an optional base-station or  
mobile antenna, first remove the sup-  
plied antenna from the scanner. Al-  
ways use 50-ohm coaxial cable, such  
as RG-58 or RG-8, to connect the  
base-station or mobile antenna. For  
lengths over 50 feet, use RG-8 low-  
loss dielectric coaxial cable. If the an-  
tenna cable’s connector does not fit in  
the ANT. jack, you might also need a  
Motorola-to-BNC antenna plug adapt-  
er, such as RadioShack Cat. No. 278-  
117. Your local RadioShack store car-  
ries a wide variety of coaxial antenna  
cable and connectors.  
CONNECTING POWER  
Using AC Power  
The scanner’s supplied AC adapter  
lets you power the scanner from a  
standard AC outlet. To connect power  
to the scanner, insert the AC adapter’s  
barrel plug into the DC 12V jack on the  
back of the scanner, then plug the AC  
adapter into a standard AC outlet.  
Once you choose an antenna, follow  
the mounting instructions supplied  
with the antenna. Then route the an-  
tenna’s cable to the scanner and con-  
nect the cable to the ANT. jack on the  
back of the scanner.  
A
N
T
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Cautions:  
A
N
T
You must use a Class 2  
D
C
1
2
V
power source that sup-  
!
plies 12V DC and deliv-  
ers at least 500 mA. Its center tip  
must be set to positive and its  
plug must fit the scanner's DC 12V  
jack. The supplied adapter meets  
these specifications. Using an  
adapter that does not meet these  
specifications could damage the  
scanner or the adapter.  
Cautions:  
You must use a power  
source that supplies 12V  
DC and delivers at least  
!
500 mA. Its center tip must be set  
to positive and its plug must fit the  
scanner's DC 12V jack. The sup-  
plied adapter meets these specifi-  
cations. Using an adapter that  
does not meet these specifica-  
tions could damage the scanner  
or the adapter.  
• Always connect the AC adapter to  
the scanner before you connect it  
to AC power. When you finish, dis-  
connect the adapter from AC  
power before you disconnect it  
from the scanner.  
• Always connect the adapter to the  
scanner before you connect it to  
the power source. When you fin-  
ish, disconnect the DC adapter  
from the power source before you  
disconnect it from the scanner.  
Warning: Do not use the AC adapt-  
er’s polarized plug with an extension  
cord receptacle unless the blades can  
be fully inserted to prevent blade ex-  
posure.  
Note: If you use a cigarette lighter  
power cable and your vehicle’s engine  
is running, you might hear electrical  
noise from the engine while scanning.  
This is normal.  
Using Your Vehicle’s Battery  
Power  
If your AC power fails (during an  
emergency, for example), you can  
power your scanner from your vehi-  
cle’s cigarette lighter socket with an  
optional DC cigarette lighter power ca-  
ble, (not supplied).  
CONNECTING AN  
EXTENSION SPEAKER  
To connect an optional DC cigarette  
lighter power cable, insert its barrel  
plug into the DC 12V jack on the back  
of the scanner, then plug the power  
cable into your vehicle’s cigarette  
lighter socket.  
In a noisy area, an amplified extension  
speaker (available at your local Ra-  
dioShack store) positioned in the right  
place, might provide more comfortable  
listening.  
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1
8
Plug the speaker cable’s / -inch (3.5-  
Listening Safely  
mm) plug into your scanner’s  
jack.  
To protect your hearing, follow these  
guidelines when you use an earphone  
or headphones.  
• Do not listen at extremely high  
volume levels. Extended high-  
volume listening can lead to per-  
manent hearing loss.  
• Set VOLUME to the lowest setting  
before you begin listening. After  
you begin listening, adjust VOL-  
UME to a comfortable level.  
Note: Connecting an external speaker  
disconnects the scanner’s internal  
speaker.  
• Once you set VOLUME, do not  
increase it. Over time, your ears  
adapt to the volume level, so a  
volume level that does not cause  
discomfort might still damage your  
hearing.  
CONNECTING AN  
EARPHONE/  
HEADPHONES  
For private listening, you can connect  
1
8
an earphone or headphones with a / -  
inch (3.5-mm) plug to the  
jack on  
the front of the scanner. (Your local  
RadioShack store carries a wide se-  
lection of earphones and head-  
phones). This automatically dis-  
connects the internal speaker.  
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UNDERSTANDING YOUR SCANNER  
Once you understand a few simple terms we use in this manual and familiarize  
yourself with your scanner’s features, you can put the scanner to work for you. You  
simply determine the type of communications you want to receive, then set the  
scanner to scan them.  
A frequency is the tuning location of a station (expressed in kHz or MHz). To find  
active frequencies, you can use the search function.  
You can also search the service-search banks, which are preset groups of fre-  
quencies categorized by type of service.  
When you find a frequency, you can store it into a programmable memory location  
called a channel, which is grouped with your other channels in a channel-storage  
bank. You can then scan the channel-storage banks to see if there is activity on  
the frequencies stored there. Each time the scanner finds an active frequency, it  
stays on that channel until the transmission ends.  
A LOOK AT THE FRONT PANEL  
Your scanner’s keys might seem confusing at first, but this information should help  
you understand each key’s function.  
Note: Some of the scanner’s keys perform more than one function and are marked  
with more than one label. The steps in this Owner’s Manual show only the label on  
the key appropriate to the action being performed.  
VOLUME  
Turns the scanner on or off and adjusts the volume.  
Adjusts the scanner’s squelch.  
SQUELCH  
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SCAN  
In conventional scanning, scans through stored chan-  
nels; in trunking mode, scans through the scan lists  
and turns on/off the S-bit feature.  
MANUAL  
Stops scanning and lets you directly enter a channel  
number or frequency.  
TRUNK  
Selects trunk scanning or conventional mode.  
SVC (service)  
Selects a service bank; turns on/off the disconnect  
tone detect feature.  
PRIORITY/SPEED  
Sets and turns on and off the priority feature; turns the  
HyperSearch mode on and off; in Trunking mode, pro-  
grams the priority ID.  
Number Keys  
Each key has single-digit (0 to 9) and double-digit (11  
to 20) labels. Use single digits to enter a channel, fre-  
quency, ID number, or bank numbers 1 to 10. Use  
double-digits to enter bank numbers 11 to 20.  
CLEAR  
Clears an entry; enters a decimal point; in trunk scan-  
ning mode, sets the range between fleet and sub-fleet  
for Motorola Type 1 IDs and sets the range between  
agency and fleet for Ericsson EDACS IDs.  
/
E (enter)  
LIMIT/▼  
DELAY  
Enters frequencies into channels; enters IDs into scan  
lists.  
Sets the frequency range; sets the search direction  
and holds a frequency search.  
Programs a 2-second delay for the selected channel,  
a limit search, or each service scan. Also programs a  
5-second delay in trunk scanning mode.  
SEARCH  
Searches a specified frequency range to find frequen-  
cies; searches for active IDs in the trunk scanning  
mode.  
L/O/SKIP (lock out/skip)  
Lets you lock out selected channels or frequencies;  
lets you lock out a selected ID in the trunk scanning  
mode.  
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REMOTE/HOLD/▲  
DATA/ALERT  
SHIFT  
Turns the remote function on or off; holds on the cur-  
rent ID in trunk scanning mode; sets the search direc-  
tion and holds the frequency search.  
Turns the data signal skip feature and the SAME alert  
features on or off, or checks the current trunking bank  
in trunk scanning mode.  
Press with number keys to select banks 11 through  
20.  
A LOOK AT THE DISPLAY  
The display has indicators that show the scanner’s current operating status. This  
quick look at the display will help you understand how your scanner operates.  
LIST  
Appears with a number (1–5) to indicate the list num-  
ber.  
BANK  
Appears with numbers (1–20) to indicate the scan  
bank.  
PUB  
Indicates (along with the activity indicator) that the  
scanner is searching the public safety service bank.  
POLICE  
FIRE/EMG  
Indicates (along with the activity indicator) that the  
scanner is searching the police service bank.  
Indicates (along with the activity indicator) that the  
scanner is searching the fire/emergency service bank.  
AIR  
Indicates (along with the activity indicator) that the  
scanner is searching the air service bank.  
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WX  
Indicates (along with the activity indicator) that the  
scanner is searching the weather service bank.  
TRUNK  
Appears when the scanner is in trunk scanning  
mode. 1–20 appears as the bank number or list  
number.  
Shows which service bank is currently active. Shows  
which control/voice channels are currently ac-  
tive.  
(activity indicator)  
SFT  
Appears when the scanner is in the shift mode;  
flashes when the remote function is on.  
M
Appears when the trunking system type is Motor-  
ola.  
E
Appears when the trunking system type is  
EDACS.  
ALERT  
Appears when the weather alert is on; flashes  
when the scanner receives an ALERT signal or  
SAME alert.  
P
Appears when a priority channel is selected or the  
priority ID is set.  
SCAN  
Appears when the scanner scans channels.  
MANUAL  
Appears when you set the scanner to its manual  
mode.  
PRI  
Appears when the priority feature is turned on.  
HOLD  
Appears when the scanner is holding during a  
search.  
DELAY  
DATA  
Appears when the delay feature is turned on.  
Appears when the data skip function is active; ap-  
pears in the trunk scanning mode when the dis-  
connect tone detect function is off.  
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L/O(lockout)  
Appears when you manually select a channel, fre-  
quency, or ID that is locked out.  
SEARCH▲  
Lights steadily during a limit search, service search,  
and ID search, and blinks while HyperSearch is active  
and when you monitor IDs. The arrow indicates the  
search direction.  
Error  
Appears if you make an entry error.  
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UNDERSTANDING  
BANKS  
UNDERSTANDING  
TRUNKING  
In the past, groups that broadcast fre-  
quently, such as police departments,  
were restricted to transmitting on just  
a few frequencies. This resulted in  
heavy traffic and often required 2-way  
radio users to wait for a specific fre-  
quency to clear before transmitting.  
Channel Storage Banks  
To make it easier to identify and select  
the channels you want to listen to,  
channels are divided into 20 banks of  
50 channels each. Use each channel-  
storage bank to group frequencies,  
such as those used by the police de-  
partment, fire department, ambulance  
services, or aircraft (see “Guide to the  
Action Bands” on Page 56).  
Trunked systems allow more groups  
of 2-way radio users to use fewer fre-  
quencies. Instead of selecting a spe-  
cific frequency to transmit on, a  
trunked system chooses one of sever-  
al frequencies when the 2-way radio  
user presses PTT (push to talk). The  
system automatically transmits the  
call on that frequency, and also sends  
a code that identifies that 2-way radio  
user’s transmission on a data channel.  
For example, the police department  
might use four frequencies, one for  
each side of town. You could program  
the police frequencies starting with  
Channel 1 (the first channel in bank 1)  
and program the fire department fre-  
quencies starting with Channel 51 (the  
first channel in bank 2).  
You can set this scanner to monitor  
the data channel frequency, so you  
can hear both the call and response  
transmissions for that 2-way radio  
user and therefore follow the conver-  
sation. (You cannot listen to the data  
channel itself in trunking mode.)  
Service Banks  
The scanner is preprogrammed with  
the frequencies allocated by public  
safety, police, fire/emergency, aircraft,  
and weather services. This is handy  
for quickly finding active frequencies  
instead of searching through an entire  
band (see “Searching Service Banks”  
on Page 19).  
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OPERATION  
directories every year, so be sure to  
get a current copy.  
TURNING ON THE  
SCANNER AND SETTING  
SQUELCH  
Note: To store trunking system fre-  
quencies, see “Programming Trunked  
Frequencies” on Page 32.  
1. Turn SQUELCH and VOLUME fully  
counterclockwise.  
Follow these steps to store frequen-  
cies into channels.  
2. Turn VOLUME back clockwise until  
you hear a hissing sound.  
1. Press MANUAL, enter the chan-  
nel number (1–1000) where you  
want to store a frequency, then  
press MANUAL again. The chan-  
nel number appears.  
3. Turn SQUELCH clockwise, then  
leave it set to a point just after the  
hissing sound stops.  
Notes:  
2. Use the number keys and  
to  
• If the scanner does not scan, turn  
SQUELCH further clockwise.  
enter the frequency (including the  
decimal point) you want to store.  
• If the scanner picks up unwanted,  
partial, or very weak transmis-  
sions, turn SQUELCH clockwise to  
decrease the scanner’s sensitivity  
to these signals. If you want to lis-  
ten to a weak or distant station,  
turn SQUELCH counterclockwise.  
3. Press E to store the frequency into  
the channel.  
• If SQUELCH is adjusted so you  
always hear a hissing sound, the  
scanner will not scan properly.  
STORING KNOWN  
FREQUENCIES INTO  
CHANNELS  
Notes:  
• If you made a mistake in Step  
2, Error appears and the  
scanner beeps when you press  
E. Simply start again from Step  
2.  
Good references for active frequen-  
cies are the RadioShack “Police Call  
Guide including Fire and Emergency  
Services,” “Official Aeronautical Fre-  
quency Directory,” and “Maritime Fre-  
quency Directory.” We update these  
• Your scanner automatically  
rounds the entered frequency to  
the nearest valid frequency. For  
example, if you enter a fre-  
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quency of 151.473, your scan-  
ner accepts it as 151.475.  
• POLICE — contains 2,392 police  
frequencies  
• FIRE/EMG — contains 197 fire  
and emergency service frequen-  
cies  
• If you entered a frequency that  
is already stored in another  
channel, the scanner beeps  
three times and displays the  
lowest channel number where  
the frequency is already stored.  
If you want to store the fre-  
quency anyway, press E again.  
• AIR — contains 2,319 aircraft and  
air service frequencies  
• WX — contains 7 weather fre-  
quencies  
• Press DELAY if you want the  
scanner to pause 2 seconds on  
this channel after a transmis-  
sion ends before it proceeds to  
the next channel (see “Delay”  
on Page 23). The scanner also  
stores this setting in the chan-  
nel.  
To select a service bank, press SVC.  
(activity indicator) appears above  
the service bank’s name PUB,PO-  
(
LICE, FIRE/EMG, AIR, and WX ,  
)
and one of the preset public service  
frequencies appear. After a 2-second  
delay, scanning begins in the selected  
bank.  
4. To program the next channel in  
sequence, press MANUAL and  
repeat Steps 2 and 3.  
To select another service bank, re-  
peatedly press SVC until  
appears  
above the name of the bank you want  
to use.  
SEARCHING SERVICE  
BANKS  
Notes:  
To skip data signals (such as  
modem signals), press DATA. See  
“Skipping Data Signals” on  
Page 25.  
You can search for public service, po-  
lice, fire/emergency, aircraft, and  
weather transmissions even if you do  
not know the specific frequencies that  
are used in your area. You can also  
store any of the frequencies you find  
into channels.  
• Because frequencies are not  
always assigned to the same ser-  
vices everywhere, you might hear  
transmissions from one service in  
another service bank.  
Your scanner has the following pre-  
programmed service banks.  
• PUB — contains 140 public ser-  
vice frequencies  
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Press SEARCH to start searching im-  
mediately or to continue searching if  
you want to skip a frequency.  
store a frequency, then press  
MANUAL again. The channel num-  
ber appears.  
2. Use the number keys and  
to  
During service-search, you can press  
HOLD to pause the searching. HOLD  
appears. Press or to move up or  
down one step, or press SEARCH to  
resume searching.  
enter the frequency that is the  
lower limit of the range you want  
to search.  
3. Press LIMIT.  
4. Use the number keys and  
to  
Follow these steps to store service  
bank frequencies into channels.  
enter the frequency that is the  
upper limit of the range you want  
to search.  
1. Press MANUAL.  
2. Use the number keys to enter the  
channel number (1–1000) where  
you want to store the frequency,  
then press MANUAL.  
5. Press LIMIT then SEARCH. The  
scanner begins to search from the  
lower limit to the upper limit.  
6. When the scanner stops on a  
transmission, quickly press either:  
3. Press SVC then SEARCH to select  
a service bank and begin search-  
ing.  
E to store the displayed fre-  
quency into the channel. The  
scanner stores the frequency.  
4. When the scanner stops on a  
transmission, press HOLD. The  
frequency appears.  
or to stop searching so  
you can listen to the transmis-  
sion. HOLDappears.  
5. Press E to store the frequency into  
the channel.  
To release hold and continue  
searching, press SEARCH.  
Notes:  
LIMIT SEARCH  
To step through the frequencies  
while HOLD appears, press or  
.  
If you do not know a frequency to  
store, you can search for transmis-  
sions within a range of frequencies  
you select, called the limit search  
range. Then you can store any inter-  
esting frequencies you find into chan-  
nels.  
• Press then SEARCH to search  
from lowest to highest frequency,  
or press then SEARCH to  
search from highest to lowest fre-  
quency.  
1. Press MANUAL, enter the chan-  
nel number where you want to  
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• If you tune to a search skip fre-  
quency, L/Oappears. See “Lock-  
ing Out Channels and Fre-  
quencies” on Page 23.  
might be periods of silence — or if you  
want to monitor a specific channel.  
Follow these steps to manually select  
a channel.  
To skip data signals (such as  
modem signals), press DATA. See  
“Skipping Data Signals” on  
Page 25.  
1. Press MANUAL.  
2. Enter the channel number.  
3. Press MANUAL again.  
Or, if your scanner is scanning and  
stops at the desired channel, press  
MANUAL one time. (Pressing MANUAL  
additional times causes your scanner  
to step through the channels.)  
SCANNING THE STORED  
CHANNELS  
To begin scanning channels, press  
SCAN. The scanner scans through all  
non-locked channels in all banks that  
are turned on, then stops on the first  
transmission it finds. When the trans-  
mission ends, the scanner resumes  
scanning.  
To resume scanning, press SCAN.  
DELETING A  
FREQUENCY FROM A  
CHANNEL  
Notes:  
• Channels with no frequencies are  
automatically locked out during  
scanning.  
1. Press MANUAL.  
2. Use the number keys to enter the  
channel number containing the  
frequency you want to delete.  
Then press MANUAL again.  
To scan in the trunking mode, see  
“Scanning a Trunked Bank” on  
Page 33.  
3. Press 0 then E. The frequency is  
deleted.  
MANUALLY SELECTING  
A CHANNEL  
PRIORITY  
You can continuously monitor a single  
channel without scanning. This is use-  
ful if you hear an emergency broad-  
cast on a channel and do not want to  
miss any details — even though there  
The priority feature lets you scan  
through channels and still not miss im-  
portant or interesting calls on specific  
channels. You can program one  
stored channel in each bank as a pri-  
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ority channel (for up to a total of 10  
stored channels). As the scanner  
scans the bank, if the priority feature is  
turned on, the scanner checks the pri-  
ority channel for activity every 2 sec-  
onds.  
channel every 2 seconds in each bank  
that is turned on, starting from the low-  
est to the highest-numbered priority  
channel.  
To turn off the priority feature, press  
PRIORITY. PRIdisappears.  
Changing Priority Channels  
Note: The priority feature must be  
turned off to use the data skip feature  
(see “Skipping Data Signals” on  
Page 25).  
The scanner automatically desig-  
nates each bank's first channel as its  
priority channel. Follow these steps to  
select a different channel as the priori-  
ty channel for a bank.  
Locking Out Priority  
Channels  
1. Press MANUAL.  
2. Enter the channel number you  
want to select as the priority chan-  
nel, then press MANUAL again.  
You can lock out priority channels. If  
you lock out all priority channels, P  
CH Loc Outappears when you turn  
on the priority feature.  
3. Hold down PRIORITY until the  
scanner beeps twice. P appears  
to the right of the channel number.  
4. Repeat Steps 2 and 3 for the  
channel in each bank you want to  
program as a priority channel.  
To turn on the priority feature, press  
PRIORITY during scanning. PRI ap-  
pears. As you scan the bank, the  
scanner checks the bank’s priority  
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SPECIAL FEATURES  
DELAY  
TURNING CHANNEL-  
STORAGE BANKS ON  
AND OFF  
Many agencies use a two-way radio  
system that might have a period of 2  
or more seconds between a transmis-  
sion and a reply. To keep from miss-  
ing a reply, you can program a 2-  
second delay into any channel or fre-  
quency. The scanner continues to  
monitor the frequency for 2 seconds  
after the transmission stops before re-  
suming scanning or searching.  
You can turn each channel-storage  
bank on and off. When you turn off a  
bank, the scanner does not scan any  
of the 50 channels in that bank.  
For banks 1–10, while scanning press  
the number key that corresponds to  
the bank you want to turn on or off.  
For banks 11–20, press SHIFT, then  
press the number key that corre-  
sponds to the bank you want to turn  
on or off.  
To program a 2-second delay:  
• If the scanner is scanning chan-  
nel-storage banks and stops on  
an active channel where you want  
to store a delay, quickly press  
DELAY before scanning resumes.  
DELAYappears.  
Notes:  
• You can manually select any  
channel within a bank, even if that  
bank is turned off.  
• If the desired channel is not  
selected, manually select the  
channel, then press DELAY.  
DELAYappears.  
• You cannot turn off all banks. One  
bank is always active.  
• If the scanner is searching, press  
DELAY. DELAY appears and the  
scanner automatically adds a 2-  
second delay to every transmis-  
sion it stops on in that band or  
limit range.  
LOCKING OUT  
CHANNELS AND  
FREQUENCIES  
You can scan existing channels or  
search frequencies faster by locking  
out channels or frequencies that have  
a continuous transmission, such as a  
weather channel.  
To turn off the 2-second delay, press  
DELAY while the scanner is monitoring  
the channel or searching service  
banks or limit ranges. DELAY disap-  
pears.  
Note: If you just want to skip over a  
lengthy transmission (such as a mo-  
dem signal), see “Skipping Data Sig-  
nals” on Page 25.  
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Notes:  
• The scanner does not display  
Locking Out Channels  
To lock out a channel while scanning,  
press L/O when the scanner stops on  
the channel. To lock out a channel  
manually, select the channel and  
press L/O until L/Oappears.  
locked-out frequencies during a  
search.  
L/O appears when you select a  
locked-out frequency.  
• You can lock out up to 50 frequen-  
cies during a limit search and 20  
during a service bank search. If  
you try to lock out more frequen-  
cies, the first locked-out frequency  
is automatically unlocked.  
To remove the lockout from a fre-  
quency, select the frequency then  
press L/O. L/Odisappears.  
Note: You can still manually select  
locked-out channels.  
To remove the lockout from a channel,  
select the channel and press L/O until  
L/Odisappears.  
To remove the lockout from all fre-  
quencies, while searching, press  
HOLD then hold down L/O until the  
scanner beeps twice.  
To remove the lockout from all chan-  
nels in the channel-storage banks that  
are turned on, press MANUAL to stop  
scanning, then hold down L/O until the  
scanner beeps twice.  
TURNING THE KEY TONE  
ON AND OFF  
The scanner is preset to sound a tone  
each time you press a key. To turn off  
the key tone, turn off the scanner.  
Then, while holding down L/O/SKIP,  
turn on the scanner. OFFbEEPbriefly  
appears. To turn the key tone back on,  
repeat this procedure. onbEEPbrief-  
ly appears.  
Locking Out Frequencies  
To lock out a frequency during a limit  
search or service bank search, press  
L/O when the scanner stops on the  
frequency. The scanner locks out the  
frequency, then continues searching.  
To lock out a frequency manually, se-  
lect the frequency and press L/O until  
L/Oappears.  
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To turn on the data skip feature, be  
sure the priority feature is turned off  
(see “Priority” on Page 21), then press  
DATA. DATAappears. To turn off the  
feature, press DATA again. DATAdis-  
appears.  
CHANGING SEARCH  
SPEEDS  
The PRO-2052 has two search  
speeds for a limit search.  
Normal Search  
HyperSearch  
USING NWR-SAME AND  
WEATHER ALERT  
100 steps/  
second  
300 steps/  
second  
Traditional weather radios simply re-  
ceive the NOAA (National Oceanic  
and Atmospheric Administration) wea-  
ther broadcast (usually within a 50-  
mile radius), then sound an alarm if  
any emergency code was transmitted  
along with the broadcast. This means  
that people who live outside an affect-  
ed area are often alerted even when  
their area is not affected, causing  
many of them to ignore potentially real  
weather warnings that can save lives.  
To switch between the normal and Hy-  
perSearch speeds during limit  
search, press SPEED. SEARCHflash-  
a
es during HyperSearch.  
Note: You can use HyperSearch only  
in the 5 kHz step bands (29–54 MHz,  
137–174 MHz, and 216–224.995  
MHz).  
In 1994, NOAA began broadcasting  
coded signals called FIPS (Federal In-  
formation Processing System) codes  
along with their standard weather  
broadcasts from stations in your area.  
These codes identify the type of emer-  
gency and the specific geographic  
area (such as a county) affected by  
the emergency. Your scanner re-  
ceives, interprets, and displays infor-  
mation about the codes so you can  
determine if the emergency might  
affect your area. Only SAME-  
compatible radios (such as this  
scanner) are able to take advantage  
of this new technology.  
SKIPPING DATA  
SIGNALS  
You can set the scanner so it skips  
nonmodulated or data signals (such  
as modem transmissions) during a  
scan or search.  
Note: Since data signals are not gen-  
erally found in the air and VHF TV  
bands, this feature does not work in  
those bands.  
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Each FIPS code identifies a specific  
geographic area (defined by the Na-  
tional Weather Service), so your scan-  
ner sounds an alert only when a  
weather emergency is declared in that  
area. This helps you more efficiently  
track the weather conditions in and  
around your area.  
Understanding FIPS Codes  
For the purpose of broadcasting  
weather information, the NWS has di-  
vided the United States into regions  
by state and county (or parish, where  
applicable) then assigned a 6-digit  
FIPS code to identify each county or  
parish. For example, the code for Tar-  
rant County, Texas, is 048439.  
When a Weather Alert Occurs  
The  
digit in  
FIPS code  
identifies  
the county  
subdivi-  
first  
a
State  
When the scanner receives a weather  
alert:  
048439  
• it sounds a series of beeps  
• an indicator appears  
County/  
Parish  
County Subdivision  
sion,  
next  
the  
two  
The scanner also receives other  
weather-related signals such as test  
events (TSt appears) and other  
events (---appears)  
digits identify the state, and the last  
three digits identify the county or par-  
ish.  
Warning: The NWS (National Weath-  
er Service) uses sophisticated weath-  
er models to determine an alert’s  
effective time. However, the end of an  
alert does not necessarily mean that  
the related weather emergency is  
over.  
Note: Most FIPS codes begin with 0,  
which means the code represents an  
entire county. The NWS, however,  
plans to eventually subdivide some  
large counties. When that happens,  
each subdivision will be assigned a  
digit from 1–9, resulting in codes such  
as 148439, 248439, and so on.  
Note: Once the scanner receives the  
SAME code, it retains the information  
in the scanner’s memory. This infor-  
mation stays in memory even if you  
change modes, but is erased when  
you turn the scanner off.  
Your scanner can receive all SAME  
alert signals broadcast within about a  
50-mile radius of where you installed  
it. To receive SAME alerts and broad-  
casts about weather occurring only in  
particular counties within that area,  
you can program up to fifteen FIPS  
codes into the scanner’s memory (see  
“Entering Your Area’s FIPS Code(s)”  
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on Page 28). For example, this lets  
you avoid hearing an alert that applies  
to an area within a 50-mile radius but  
not necessarily to your county or par-  
ish.  
Turning on the SAME and  
Weather Alert  
1. Repeatedly press SVC until  
appears above WX.  
2. Press ALERT. ALERT appears  
and the scanner is set to receive a  
SAME-coded signal. The scan-  
ner’s audio is muted until it  
receives the signal.  
Note: If you do not program any FIPS  
location codes into the scanner’s first  
memory (F1), the scanner sounds an  
alert if it receives a weather alert with  
any FIPS code.  
When the scanner receives a SAME-  
coded signal, it sounds a series of  
beeps, ALERTflashes, and L3(if the  
broadcast is a statement), L2 (if the  
broadcast is a watch), or L1 (if the  
broadcast is a warning) appears. After  
that, the scanner automatically tunes  
to the weather channel where the  
code was broadcast and you hear the  
weather broadcast.  
Obtaining Your Area’s  
FIPS Code(s)  
To obtain the FIPS code for the loca-  
tion where you installed your scanner,  
contact your local RadioShack store  
or call the NWS toll free at 1-888-  
NWR-SAME (1-888-697-7263). If you  
call the NWS, follow the instructions  
you hear.  
To stop the alert, press any key on the  
scanner. The alert sound stops and  
you hear the weather broadcast.  
Note: If you are close to a county or  
parish line, you might want to obtain  
the codes for the nearby counties or  
parishes.  
Warning: If severe weather threatens,  
do not wait for an alert tone; turn on  
the weather broadcast and monitor  
the weather information.  
Hint: Since you can program up to fif-  
teen FIPS codes into the scanner’s  
memory, you might want to obtain the  
code for other local areas that you fre-  
quently travel through (as long as  
these areas are within a 50 mile radius  
of your location and within an area  
covered by your local NWS broadcast  
station). That way, you can program  
those codes into the scanner and re-  
ceive broadcasts covering those loca-  
tions, too.  
To detect a SAME-coded signal on a  
specific weather channel, press HOLD  
during weather search to stop on a  
specific channel, press or to se-  
lect the desired weather channel, then  
press ALERT. ALERTappears.  
When the scanner detects a SAME-  
coded signal broadcast on the weath-  
er channel you selected, it sounds a  
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series of beeps and L3(if the broad-  
cast is a statement), L2(if the broad-  
cast is a watch), or L1 (if the  
broadcast is a warning) appears.  
TESTING WEATHER  
ALERT RECEPTION  
For your scanner to effectively warn  
you about weather alert signals, you  
must place it where it can receive an  
emergency alert broadcast and where  
you can hear its alert tone.  
Once the scanner receives a SAME-  
coded signal, it retains the information  
in its memory. This information stays  
in memory even if you change modes,  
but is erased when you turn off the  
scanner. You can switch to weather  
search mode to check the alert level.  
In the United States, the NWS broad-  
casts a test alert every week on  
Wednesday between 11 AM and 1  
PM. To find out the specific test  
schedule in your area, contact your lo-  
cal NOAA or NWS office. These offic-  
es are usually listed in the telephone  
book under “US Government, Depart-  
ment of Commerce.”  
Entering Your Area’s FIPS  
Code(s)  
1. Turn on the SAME alert function  
(see “Turning on the SAME and  
Weather Alert” on Page 27).  
Important: The fact that you get clear  
reception of a weather broadcast sig-  
nal does not guarantee that an emer-  
gency alert broadcast will trigger your  
scanner’s alert function.  
2. Hold down E until F1appears.  
3. Enter the FIPS code using the  
number keys, then press E.  
4. To enter another FIPS code, press  
or , then repeat Steps 2 and  
3.  
Note: The NWS might not broadcast  
the test alert if there is bad weather in  
any surrounding area.  
Note: To clear a FIPS code you  
entered in Step 3 (while the code  
appears on the display), press 0  
then E.  
Testing the Alert Beep  
5. When you finish, press SVC.  
1. If necessary, repeatedly press  
SVC until  
appears above WX.  
Note: If you do not program any FIPS  
location codes into the scanner’s first  
memory (F1), the scanner sounds an  
alert if it receives a weather alert with  
any FIPS code.  
2. If necessary, press ALERT so  
ALERTis not on the display.  
3. Hold down ALERT for about 3 sec-  
onds. The scanner sounds a loud  
series of beeps.  
4. Press any key to stop the alert.  
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Testing NWR-SAME Code  
Detection  
1. Turn on the SAME alert function  
(see “Turning on the SAME and  
Weather Alert” on Page 27).  
2. Hold down ALERT for about 3 sec-  
onds. The selected frequency  
number and TESt alternate on  
the display. Then, when the scan-  
ner receives a test code, TSt  
appears.  
3. Press ALERT to exit the test  
mode.  
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TRUNK SCANNING  
Your scanner is designed to track  
transmissions on Motorola Type I,  
Type II, GE/Ericsson EDACS, and hy-  
brid analog trunking systems. Re-  
member these important points when  
tracking transmissions:  
TYPES OF TRUNKING  
SYSTEMS  
Your trunk scanning scanner can  
monitor three basic types of systems  
Type I, Type II, and EDACS. In-  
stead of selecting a specific frequency  
to transmit on, a trunked system  
chooses one of several frequencies in  
a 2-way radio user’s talk group when  
that user presses PTT (push to talk).  
Thus, trunking systems allocate a few  
frequencies among many different us-  
ers, but the way Type I and Type II  
systems do this is slightly different.  
• Your scanner monitors Type II  
systems by default. However, you  
can change this if the system in  
your area is different (see “Types  
of Trunking Systems” on this page  
and “Scanning Type I and Hybrid  
Trunked Systems” on Page 40 for  
more information).  
• Your scanner tracks a trunked  
system or scans frequencies in  
conventional mode, but it cannot  
do both at the same time.  
One important distinction between  
these systems is the amount of data  
transmitted by each radio when its  
PTT button is pressed. In a Type I  
system, the radio’s talk group ID and  
its current affiliation (the trunk system  
it belongs to) are both transmitted. In a  
Type II system, only the radio’s talk  
group ID is transmitted.  
• The frequencies for many of the  
800 MHz public safety systems  
are listed in the separate “National  
Public Safety Trunked System  
Frequency & Talk Group Guide”  
included with this scanner.  
Why the difference? In Type I sys-  
tems, each radio in the trunk group in-  
dividually transmits its own affiliation,  
while the trunk system maintains a da-  
tabase that determines each radio's  
affiliation(s) in Type II systems.  
Another difference between the sys-  
tems is that Type I systems are ar-  
ranged in a fleet-subfleet hierarchy.  
For example, it is possible for a city  
using a Type I system to designate  
four fleets, each with eight subfleets.  
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The fleets might be the police depart-  
ment, the fire department, the utilities,  
and city administration. The police  
might decide to further divide its fleet  
into subfleets such as dispatch, tacti-  
cal operations, detectives, north,  
south, east, and west side patrols, and  
supervisors. All the available police ra-  
dios would then be assigned to one of  
the police subfleets, letting the police  
centralize their communications and  
control the type of users on a single  
system. Determining the exact fleet-  
subfleet hierarchy for a particular area  
is referred to as fleet map program-  
ming.  
You do not need to determine the  
fleet-subfleet hierarchy for Type II sys-  
tems unless you are tracking hybrid  
systems that contain both Type I and  
Type II systems.  
SETTING THE SCANNER  
TO THE TRUNK  
SCANNING MODE  
Press TRUNK to switch between the  
scanner’s conventional and trunk  
scanning modes.  
The disadvantage of a Type I system  
is that the brief burst of data sent  
when a user transmits must contain  
the radio’s talk group ID, and its fleet  
and subfleet. This is three times the  
amount of data a Type II system radio  
sends. Since the data capacity of  
Type I systems is limited and the  
amount of data increases with each  
user, Type I systems usually accom-  
modate fewer users than Type II sys-  
tems. Nevertheless, Type I systems  
are still in use.  
SETTING SQUELCH FOR  
THE TRUNK SCANNING  
MODE  
There are also hybrid systems which  
are a combination of both Type I and  
Type II. Your scanner defaults to mon-  
itor Type II systems, but you can  
change to Type I or a hybrid of Type I  
and Type II systems by selecting a pre  
programmed fleet map or creating a  
custom fleet map for your area (see  
“Scanning Type I and Hybrid Trunked  
Systems” on Page 40).  
The squelch setting can affect how  
fast your scanner acquires the data  
channel, and in some instances, can  
prevent your scanner from acquiring  
the data channel at all.  
Adjusting SQUELCH is necessary to  
track transmissions precisely.  
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806.0000–899.9875 MHz  
(in 12.5 kHz steps, except  
cellular frequencies)  
We recommend you set SQUELCH to  
the position shown here before select-  
ing a trunked bank.  
406.0000–512.0000 MHz  
(in 12.5 kHz steps)  
137.0000–174.0000 MHz  
(in 5 kHz steps)  
• You can use any of your scanner’s  
banks as either a trunk scanning  
bank or conventional scanning  
bank, but you cannot mix the two.  
Note: Change this setting as neces-  
sary to get the best performance in  
your area.  
• The scanner only scans one  
trunked system at a time. Al-  
though you can store frequencies  
for more than one trunked system  
in one of your scanner’s banks,  
the scanner only scans the fre-  
quencies associated with the first  
data channel it finds.  
PROGRAMMING  
TRUNKED  
FREQUENCIES  
Before you program your scanner to  
track a trunked system, consider the  
following:  
Before scanning a trunked system’s  
transmissions, you must store the  
trunked system’s frequencies in one of  
the banks in your scanner by following  
these steps.  
• Valid trunked system frequencies  
are as shown below.  
:
Motorola system  
1. Set the scanner for conventional  
scanning, then hold down TRUNK  
until the scanner beeps twice.  
BANK, TRUNK, and the bank  
numbers flash.  
935.0125–939.9875 MHz  
(in 12.5 kHz steps)  
851.0000–868.9875 MHz  
(in 12.5 kHz steps)  
406.0000–512.0000 MHz  
(in 12.5 kHz steps)  
137.0000–174.0000 MHz  
(in 5 kHz steps)  
2. Press a number key to select the  
bank for the trunked system’s fre-  
quencies. To select  
a
bank  
between 11 and 20, press SHIFT  
then the number keys. The scan-  
ner displays one of six system  
types.  
:
Ericsson EDACS system  
900.0000–956.000 MHz  
(in 12.5 kHz steps)  
3. Use or to select the system  
type, then press E.  
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1. Turn on the scanner and begin  
scanning in conventional mode.  
You See  
E1  
Trunk System  
Motorola Type I,  
800 MHz frequencies  
2. Press TRUNK. The indicators for  
all banks that have been pro-  
grammed with trunked frequen-  
cies flash, and TRUNKand BANK  
appear.  
EDACS frequencies  
Ed  
E2 UHF  
Motorola Type II,  
UHF frequencies  
Motorola Type II,  
VHF frequencies  
E2 Hi  
3. To see all banks programmed with  
Motorola system frequencies,  
press . All banks programmed  
with Motorola system frequencies  
flash. To see all banks pro-  
grammed with EDACS system fre-  
quencies, press again. All  
banks programmed with EDACS  
system frequencies flash.  
E2 800  
Motorola Type II,  
800 MHz frequencies  
E2 900  
Motorola Type II,  
900 MHz frequencies  
4. Use the number keys to enter the  
trunked system’s frequencies,  
then press E.  
4. Use the number keys to activate  
the trunked bank you want to  
Note: If you entered an invalid fre-  
quency, the scanner beeps, the  
channel number flashes and  
Errorappears. Press CLEAR to  
clear the frequency, then repeat  
Step 4.  
scan.  
appears under the  
selected bank’s number.  
5. Press SEARCH. As the scanner  
searches for the trunk’s data  
channel (the channel that con-  
trols the trunk), SEARCH flashes.  
When the scanner finds the data  
channel, it begins trunk scanning.  
5. Press either MANUAL or to  
select the next channel in the  
bank.  
6. Repeat Steps 4 and 5 until all fre-  
quencies have been entered.  
If you entered all of the trunk’s fre-  
quencies, you should be able to  
follow conversations between  
broadcasters even when they  
change frequencies. IDs which  
represent different service groups  
appear.  
SCANNING A TRUNKED  
BANK  
You can scan one trunked bank at a  
time. Once you have stored frequen-  
cies for a trunked system in one or  
more of the 20 available banks, and  
you are scanning non-trunked fre-  
quencies, follow these steps to begin  
trunk scanning.  
Note: To see the bank currently in  
use (for about 5 seconds), press  
DATA.  
6. To return to conventional scan-  
ning, press TRUNK again.  
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Hint: While scanning, you will not  
know exactly whom the talkgroup IDs  
are assigned to until you listen awhile  
or until you locate talkgroup ID lists in  
frequency guides or on internet sites  
in a few minutes, you can usually fig-  
ure out if what you are listening to is a  
police, fire, or emergency medical 2-  
way radio user. Other talkgroup IDs  
might take some time, but determining  
whom each ID represents is half the  
fun of trunk scanning!  
Turning Status Bit Ignore  
On or Off  
You can set how your scanner works  
with status bits (also called S-bits), let-  
ting you control how the scanner inter-  
prets and displays talkgroup IDs.  
The last four bits of a Motorola Type II  
talkgroup ID (a binary 16-bit code) are  
the status bits. In some systems, sta-  
tus bits identify special situations  
(such as an emergency status).  
Your scanner is preset to assume that  
the status bits in a talkgroup ID are set  
to 0 and ignores them. For example,  
when the scanner receives the talk-  
group ID 010111001110 0011, it  
reads the ID as 010111001110 0000  
and converts the first 12 bits of the ID  
to 23776 (the talkgroup ID). However,  
since the status bit value is 3 (0011  
converted to decimal equals 3), the ID  
is actually 23779.  
Turning Banks On or Off  
During Trunk Scanning  
As in conventional scanning, you can  
turn each channel-storage bank on  
and off during trunk scanning. When  
you turn off a bank, the scanner does  
not scan any of the 50 channels in that  
bank.  
1. Press DATA. All active trunk bank  
numbers appear.  
If you are scanning a Motorola Type I  
system and do not have a fleet map  
for that system, you might have to turn  
off status bit ignore in order to deter-  
mine the proper fleet map.  
2. Press the number key for the bank  
you want to add or delete.  
If the bank number is off, the scanner  
does not scan any of the channels  
within that bank.  
Important: If you are scanning any  
system other than a Motorola Type I  
system, be sure status bit ignore is set  
to ONor you will miss some transmis-  
sions.  
Skipping the Trunked Bank  
To skip to another trunked bank while  
you are listening to a trunked bank,  
hold down DATA.  
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. Note the following exam-  
Follow these steps to turn status bit ig-  
nore on or off.  
SEARCH  
ples.  
1. Hold down SCAN until the current  
status bit ignore setting (ON or  
OFF) appears.  
Example 1  
Agency = 01  
Press 0 1 . SEARCH.  
appears during search.  
2. Press or to select ONor OFF,  
01 ---  
then press E.  
Example 2  
Agency = 01, Fleet = 01  
Press 0 1 . 0 1 SEARCH.  
Identifying a Trunked  
Frequency  
appears during search.  
01-01-  
To stop an ID range search, press  
To identify a trunked frequency, press  
when the scanner stops on a talk-  
group ID. The trunked frequency brief-  
ly flashes twice. To show the fre-  
quency longer, hold down . The  
scanner beeps, then the trunked fre-  
quency and talkgroup ID alternate.  
again.  
SEARCH  
Using Trunk Scanning Scan  
Delay  
Many trunked systems have a period  
of 2 or more seconds between a trans-  
mission and a reply. You can pro-  
Switching EDACS Format  
gram  
a
5-second delay so the  
The EDACS system uses two group  
ID formats: Agency-Fleet-Subfleet  
(AFS) and Decimal. If you use a list of  
IDs shown in one format (AFS) and  
the ID you want to receive is in the  
other format (such as decimal, for ex-  
ample), hold down SVC to switch to  
the decimal format. The ID appears in  
decimal format and Eflashes.  
scanner holds on an ID for 5 seconds  
to wait for a reply. The scanner contin-  
ues to monitor the frequency for 5 sec-  
onds after the transmission stops  
before resuming scanning.  
Press DELAY to turn trunk scanning  
scan delay on or off. DELAYappears  
when trunk scanning scan delay is  
set.  
EDACS ID Range Search  
To make searching for EDACS IDs  
faster, set a range for the Agency or  
Fleet listings. Simply use the number  
keys to enter the Agency or the Agen-  
cy and the Fleet listing, then press  
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Note: If you consistently miss re-  
sponses even with trunk scanning  
scan delay set, you might need to  
change the default system type or the  
fleet map you are using. See “Scan-  
ning Type I and Hybrid Trunked Sys-  
tems” on Page 40.  
Note: If you lock out an ID while  
searching, it is also locked out of the  
scan list(s). See “Scan Lists” on  
Page 37.  
Unlocking a Single ID  
1. Hold down L/O until you hear two  
short beeps.  
Monitoring an Active ID  
2. Repeatedly press or to select  
When the scanner stops on a trans-  
mission, follow these steps to hold the  
scanner on that transmission.  
the ID you want to unlock.  
3. Press L/O. The ID is unlocked and  
the next locked ID appears.  
Note: You can also follow these steps  
to hold on an ID while scanning a scan  
list. See “Scan Lists” on Page 37.  
4. Press SEARCH to resume the pre-  
viously selected function.  
1. Press HOLD. HOLD appears and  
the scanner stays on the current  
ID.  
Unlocking All IDs  
Hold down L/O until you hear two short  
beeps, then press E to unlock all the  
IDs at once. The scanner beeps twice.  
2. To continue trunk scanning, press  
SEARCH.  
Note: When you unlock all the IDs,  
the scan list mode appears. Press  
SCAN to scan the IDs stored in your  
scan lists or press SEARCH to resume  
the previously selected function. For  
more information about scan lists, see  
“Scan Lists” on Page 37.  
Locking Out IDs  
As with conventional scanning, it is  
possible to lock out unwanted traffic.  
This is particularly important in trunk-  
ed systems because signals you can-  
not listen to (such as water meters,  
door alarms, traffic signals, and en-  
crypted signals) are assigned IDs just  
like other users. You can lock out up  
to 100 IDs.  
To lock out an ID, press L/O when the  
ID appears. The ID is locked out, and  
the next active ID appears.  
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MONITORING IDS  
You can use your scanner’s display to  
monitor the frequencies in a trunked  
system for activity. You cannot hear  
conversations in this mode, but this is  
an excellent way to determine which  
talk groups are the most active.  
• The bar that flashes when an ID  
appears represents the frequency  
being used by the radio you are  
currently hearing.  
To set the scanner to monitor IDs,  
hold down SEARCH until the scanner  
beeps twice. SEARCHflashes, and all  
talk group IDs appear in succession.  
To stop monitoring IDs, press  
SEARCH again.  
• If a bar turns on but you do not  
hear a conversation, the channel  
is probably being used for a tele-  
phone interconnect call or a pri-  
vate call, or the indicator might be  
a locked-out ID. Your scanner  
does not monitor these types of  
calls.  
Note: When you monitor IDs, locked-  
out IDs also appear.  
CHANNEL ACTIVITY  
INDICATORS  
• If the scanner is holding on an ID  
which is not active, the other bars  
turn on and off as other groups  
use the system  
Your scanner has 20 channel activity  
indicators (bars). The bars show that  
transmissions are being received on a  
trunked system.  
A bar appears for each frequency you  
store in a trunking bank.  
SCAN LISTS  
When you program trunked frequen-  
cies into a bank (see “Programming  
Trunked Frequencies” on Page 32),  
your scanner sets up 5 scan lists into  
which you can store your favorite IDs.  
Each list can contain up to 10 IDs, so  
you can store a total of 50 IDs for each  
trunk scanning bank (1000 IDs if you  
use all banks as trunking banks).  
You can use the bars to tell how many  
frequencies are being used and gen-  
erally monitor how much communica-  
tion traffic is occurring on a trunked  
system.  
• A bar that remains on steadily  
even when there are no current  
transmissions represents the fre-  
quency being used as the data  
channel.  
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Scan lists help you organize trunking  
system users into categories. For ex-  
ample, you might use List 1 for police  
IDs, List 2 for fire department IDs, List  
3 for emergency medical service IDs,  
and so on. Once IDs are stored in  
lists, you can scan them like you scan  
conventional channels. You can pro-  
gram IDs into scan lists manually, dur-  
ing a search, or automatically.  
b. Enter the subfleet number, then  
press E.  
Note: To clear a mistake while  
entering an ID, press CLEAR, then  
start over at Step 4.  
Or, to enter an EDACS ID:  
a. Use the number keys to enter  
the agency number, then press .  
b. Enter the fleet number, then the  
subfleet number, then press E.  
Manually Storing IDs into  
Scan Lists  
5. Repeatedly press MANUAL or ▲  
to select the next scan list location  
you want to program. Then repeat  
Step 4 to enter another ID.  
1. Select the desired trunking bank  
(see “Scanning a Trunked Bank”  
on Page 33).  
Storing IDs into Scan Lists  
While Searching  
2. After the scanner begins trunk  
scanning, press MANUAL. A scan  
list number appears at the top of  
the display, and a bar shows the  
channel activity.  
Follow these steps to select a scan list  
location and store an ID during a  
search.  
Scan List Number  
1. When your scanner stops on an  
ID you want to store, press PRI-  
ORITY. The currently selected  
scan list memory location flashes.  
2. Press E to store the ID in the  
selected scan list memory loca-  
tion. Or, repeatedly press or ▼  
to select another location, then  
press E.  
3. Repeatedly press or to select  
the scan list location you want to  
program.  
3. Press SEARCH to resume search-  
4. Enter the Type II ID you want to  
ing.  
store, then press E.  
Or, to enter a Type I ID:  
a. Use the number keys to enter  
the block number and the fleet  
number, then press .  
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Automatically Storing an ID in  
a Scan List Location  
SCANNING THE SCAN  
LISTS  
To store an ID in the first available  
scan list location during a search,  
press E at any time after the scanner  
stops on that ID.  
Press SCAN to begin scanning the  
lists you have programmed. Id  
SCANscrolls on the display.  
Note: If more than one of the scan IDs  
you have stored do not work, Error  
flashes twice and the scanner beeps  
several times, then the scan list num-  
bers appear at the top of the display.  
Or, follow these steps to store an ID in  
a specific scan list location.  
1. Press PRIORITY when the desired  
ID appears.  
2. Repeatedly press or to  
choose a specific scan list loca-  
tion.  
To remove a scan list from active  
scanning, use the number keys to en-  
ter the scan list’s number. The scan  
list indicator turns off, and the IDs in  
that list are not scanned.  
3. Press E.  
Note: An ID you enter into a scan list  
location automatically overwrites any  
ID that is already stored in that loca-  
tion.  
Note: You cannot remove all the scan  
lists. One scan list must always be ac-  
tive.  
To display a scan list location and  
store an ID in that location during a  
search, press PRIORITY to display the  
current scan list location, then press E  
when your scanner stops on an ID you  
want to store.  
To restore a scan list to active scan-  
ning, use the number keys to enter its  
number again.  
Press SEARCH to return to the previ-  
ously selected function.  
Deleting a Stored ID  
Priority ID Scanning  
1. Press MANUAL.  
As in conventional scanning, you can  
designate one ID in each scan list as a  
priority ID.  
2. Repeatedly press or to select  
the scan list location (shown at the  
top of the display) you want to  
delete.  
To select an ID as a priority ID, hold  
down PRIORITY for about 2 seconds  
when the scanner stops on the ID. P  
appears.  
3. Press 0 then E.  
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Press PRIORITY to turn on priority  
scanning.  
When a Type I system is designed,  
the address information for all its user  
IDs is divided into 8 equal-size blocks,  
numbered 0–7, and each block is as-  
signed a size code. When you set up  
your scanner to track a Type I system,  
you must choose a size code for each  
block. When you have chosen a size  
code for all 8 blocks, you will have du-  
plicated the fleet map for the system  
you are tracking. If you have chosen  
correctly, you will be able to track  
transmissions in that system.  
Note: Priority scanning does not work  
if the ID is locked out.  
SCANNING TYPE I AND  
HYBRID TRUNKED  
SYSTEMS  
Your PRO-2052 is set to scan Type II  
user IDs by default. When you scan  
trunked frequencies, each Type II user  
ID you see appears as an even num-  
ber without a dash (such as 2160).  
Your PRO-2052 can also scan Type I  
trunked systems. Each Type I ID ap-  
pears as a three- or four-digit number,  
followed by a hyphen, followed by a  
one- or two-digit number (such as  
200-14).  
Each size code defines the number of  
fleets, subfleets, and IDs each block  
has. For example, you can see in the  
following table that a size code of S4  
has one fleet, which is divided into 16  
separate subfleets, and it has a total  
of 512 individual IDs.  
Size Fleets Sub-  
fleets  
IDs  
Block  
Used  
If you notice a mix of odd- and even-  
user IDs (such as 6477, 2160, 6481,  
6144, and 1167), then you are proba-  
bly monitoring either a Type I or hybrid  
(a combination of Type I and Type II  
user IDs) system. (See “Types of  
Trunking Systems” on Page 30).  
S0  
S1  
S2  
S3  
S4  
S5  
S6  
S7  
S8  
Reserved block for Type II IDs  
128  
16  
8
4
16  
1
1
1
1
1
1
1
1
8
64  
8
128  
512  
32  
1
16  
4
64  
32  
32  
16  
You might also notice that you are  
missing responses when you hold on  
an active ID. Unlike Type II systems,  
Type I and hybrid systems require a  
fleet map that sets specific fleet-  
subfleet parameters. It is easy to se-  
lect a fleet map to scan; what is not al-  
ways easy is selecting or program-  
ming a map that is being used in your  
particular area.  
8
32  
4
64  
4
128  
IDs  
Size Fleets Sub-  
fleets  
Block  
Used  
S9  
8
4
4
8
256  
256  
1
1
S10  
40  
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Now listen to the communications. If  
you decide you are receiving most of  
the replies to the conversations with  
IDs assigned to the block you just pro-  
grammed, then you have probably se-  
lected the right size code and can  
work on the next block of the map.  
S11  
S12  
S13  
S14  
2
1
1
1
16  
16  
16  
16  
256  
1
2
4
8
1024  
2048  
4096  
Each ID in the block is unique. The  
left-most digit is the block number in  
the ID. The next two digits identify  
which fleet is active, and the last dig-  
it(s) (after the hyphen) identifies the  
subfleet.  
There are 16 preset fleet maps to  
choose from, and it is best to start with  
these when setting up a Type I or hy-  
brid trunk scanning bank. If none of  
the following preset fleet maps allow  
you to follow complete conversations,  
then you probably need to program  
your own fleet map (see “Program-  
ming a Fleet Map” on Page 44).  
The size codes selected by a Type I  
system designer depend on the spe-  
cific needs of the system’s users.  
Some organizations might want many  
subfleets with only a few radios each,  
while another organization might want  
only a few subfleets, with many radios  
each. To scan Type I systems, you  
must select or program a fleet map  
with the same size code assignments  
as the trunked system. If you do this  
accurately, you will track all the fleet  
and subfleet combinations used by the  
system. In other words, you will hear  
complete communications while moni-  
toring a trunked system.  
E1P1  
E1P2  
Block Size  
Code  
Block Size  
Code  
0
1
2
3
4
5
6
7
S11  
S11  
S11  
S11  
S11  
S11  
S11  
S11  
0
1
2
3
4
5
6
7
S4  
S4  
S4  
S4  
S4  
S4  
S4  
S4  
Note: www.trunkscanner.com plans to  
make preset fleet maps available as  
they become known.  
If you do not already know the size  
codes used, you will have to guess  
them. But since you do not have to fig-  
ure out all the blocks at once, this is  
not as hard as it seems. Select a size  
code for a block, then press SEARCH.  
E1P3  
E1P4  
Block Size  
Code  
Block Size  
Code  
0
1
S4  
S4  
0
1
S12  
(S12)  
41  
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E1P3  
E1P4  
E1P7  
E1P8  
Block Size  
Code  
Block Size  
Code  
Block Size  
Code  
Block Size  
Code  
2
3
4
5
6
7
S4  
2
3
4
5
6
7
S4  
S4  
S4  
S4  
S4  
S4  
5
6
7
S4  
S4  
S4  
5
6
7
S3  
S4  
S4  
S4  
S4  
S4  
S12  
(S12)  
E1P9  
E1P10  
Block Size  
Code  
Block Size  
Code  
0
1
2
3
4
5
6
7
S4  
S4  
S0  
S0  
S0  
S0  
S0  
S0  
0
1
2
3
4
5
6
7
S0  
S0  
S0  
S0  
S0  
S0  
S4  
S4  
E1P5  
E1P6  
Block Size  
Code  
Block Size  
Code  
0
1
2
3
4
5
6
7
S4  
0
1
2
3
4
5
6
7
S3  
S4  
S10  
S4  
S12  
(S12)  
S4  
S4  
S12  
(S12)  
S12  
(S12)  
S4  
E1P11  
E1P12  
S4  
Block Size  
Code  
Block Size  
Code  
S4  
0
1
2
3
4
5
6
7
S4  
S0  
S0  
S0  
S0  
S0  
S0  
S0  
0
1
2
3
4
5
6
7
S0  
S0  
S0  
S0  
S0  
S0  
S0  
S4  
E1P7  
E1P8  
Block Size  
Code  
Block Size  
Code  
0
1
2
3
4
S10  
S10  
S11  
S4  
0
1
2
3
4
S1  
S1  
S2  
S2  
S3  
S4  
42  
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2. Press a number key to select the  
bank where you want to store the  
preset fleet map.  
E1P13  
E1P14  
Block Size  
Code  
Block Size  
Code  
3. Repeatedly press or to select  
0
1
2
3
4
5
6
7
S3  
S3  
S11  
S4  
S4  
S0  
S0  
S0  
0
1
2
3
4
5
6
7
S4  
E1(Type I and hybrid), then press  
E.  
S3  
S10  
S4  
4. Press DATA.  
S4  
S4  
S12  
(S12)  
5. Repeatedly press or to select  
the name of the desired map  
(such as E1P7), then press E.  
E1P15  
E1P16  
Block Size  
Code  
Block Size  
Code  
The scanner then searches for trans-  
missions using the preset map you  
chose.  
0
1
2
3
4
5
6
7
S4  
0
1
2
3
4
5
6
7
S3  
S4  
S10  
S10  
S11  
S0  
Note: When the scanner searches for  
transmissions, you see Type I fleet  
and subfleet IDs such as 100-12,  
100-9, 000-12, or 400-8.  
S4  
S11  
S11  
S0  
How do you know if the preset map  
you selected is correct? Listen to see  
if you are following complete conver-  
sations. If not, try another preset map.  
S0  
S12  
(S12)  
S12  
(S12)  
Selecting a Preset Fleet Map  
1. Set the scanner for conventional  
scanning, then hold down TRUNK  
until the scanner beeps twice.  
BANK, TRUNK, and the bank  
numbers flash.  
43  
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Since these size codes require multi-  
ple blocks, you will be prompted for  
the next available block when pro-  
gramming a fleet map. For example, if  
you assign Block 0 as an S12, the  
scanner prompts you for b2, the next  
block available, instead of b1. And if  
you assign Block 0 as an S14, you  
would not see another prompt be-  
cause it uses all available blocks.  
Programming a Fleet Map  
1. Set the scanner for conventional  
scanning, then hold down TRUNK  
until the scanner beeps twice.  
BANK, TRUNK, and the bank  
numbers flash.  
2. Press a number key to select the  
bank where you programmed  
Type I trunk frequencies.  
3. Repeatedly press or until E1  
Programming a Hybrid  
System  
appears, then press E.  
4. Press DATA.  
A hybrid system is simply a Type I  
system with some of its blocks desig-  
nated as Type II blocks. To program a  
hybrid system, follow the steps listed  
in “Programming a Fleet Map” on  
Page 44. However, if you want a block  
to be Type II, select size code S0 in  
Step 6.  
5. Repeatedly press or until  
USrappears, then press DATA.  
6. Repeatedly press or to select  
the size code for the first block,  
then press E. The next available  
block appears.  
7. Repeat Step 6 until you have  
selected a size code for each  
block you want to work with.  
Programming the Base and  
Offset Frequencies  
8. Press SEARCH. The scanner exits  
the trunking programming mode,  
tunes the data channel, then  
begins to search using the map  
you programmed.  
To properly track Motorola VHF and  
UHF trunked systems, you must pro-  
gram the applicable  
and  
offset  
base  
frequencies for each system.  
Note: If you select size code S12,  
S13, or S14, these restrictions apply:  
These settings can be found at  
www.trunkscanner.com and similar  
frequency resources.  
• S12 can only be assigned to  
Blocks 0, 2, 4, or 6.  
• S13 can only be assigned to  
Blocks 0 and 4.  
1. Set the scanner for conventional  
scanning, then hold down TRUNK  
until the scanner beeps twice.  
• S14 can only be assigned to Block  
0.  
2. Press the number key of the bank  
where you want to store the base  
frequency.  
44  
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3. Repeatedly press or to select  
Turning the Motorola  
Disconnect Tone Detect  
Function On/Off  
E2-Hior E2-UHF, then press E.  
4. Press DATA. The preset base fre-  
quency appears.  
While trunk scanning a Motorola sys-  
tem, your scanner automatically tunes  
to the data channel when it detects a  
disconnect tone (a code that tells the  
trunking system that the transmitter  
has finished sending) on the voice  
channel.  
5. Enter a desired frequency, then  
press E.  
6. Press DATA. The preset offset fre-  
quency appears.  
7. Enter the frequency using the  
number keys according to the fol-  
lowing guide, then press E:  
You can manually turn off this function  
so the scanner does not tune to the  
data channel under those conditions.  
Use this feature to listen to weak  
transmissions when conversations are  
generally disconnected.  
• For Motorola Type II VHF, (E2-  
Hi band) use 5 kHz steps  
between 5 kHz–100 kHz.  
• For Motorola Type II UHF, (E2-  
UHF band) use 12.5 kHz steps  
between 12.5 kHz–100 kHz.  
To turn the disconnect tone detect  
function off, set the scanner to trunk  
track then press SVC. The scanner  
Note: For example, if you pro-  
gram 406.0250 as a trunked fre-  
quency, the base and offset  
frequencies are as follows:  
beeps and  
seconds.  
flashes for about 5  
DATA  
Notes:  
• BASE: 406.0000 MHz, OFFSET:  
12.5 kHz=Channel 2  
To set the scanner so it remains  
on the voice channel (even when  
a disconnect tone is transmitted or  
there is no signal at all) set  
SQUELCH so you hear a hissing  
noise.  
• BASE: 406.0000 MHz, OFFSET:  
25.0 kHz=Channel 1  
8. Repeat the steps under “Program-  
ming Trunked Frequencies” on  
Page 32 to store the trunked sys-  
tem’s frequencies in your scan-  
ner’s banks.  
• You cannot use the disconnect  
tone detect function if you are pro-  
gramming a trunking frequency or  
a fleet map.  
To set the scanner to automatically  
tune to the data channel once again  
when it detects a disconnect tone,  
press SVC.  
disappears.  
DATA  
45  
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20-432.fm Page 46 Friday, July 14, 2000 11:30 AM  
PC REMOTE FUNCTION  
Your scanner’s PC Remote function  
lets you connect the scanner to a  
computer then use the computer to  
operate most of the scanner’s func-  
tions, the same way as if you were us-  
ing the keys on the scanner’s front  
panel.  
Software Settings  
Use the following settings for the com-  
munications software.  
BPS rate  
2400/4800/9600/  
19200 BPS  
Start/Stop bit  
Data Length  
Parity Check  
Code  
1 bit  
CONNECTING THE  
SCANNER TO A  
COMPUTER  
8 bit  
None  
ASCII  
Caution: Always turn off the computer  
before connecting or disconnecting  
your scanner. Otherwise you could  
damage your computer or the scan-  
ner.  
Flow Control  
Return Code  
None  
Carriage Return only  
Scanner Settings  
To connect the scanner to your com-  
puter, plug one end of an optional 9-  
pin serial cable (available at your local  
RadioShack store) into REMOTE on  
the back of the scanner, then plug the  
other end of the cable into your com-  
puter’s serial port.  
If necessary, follow these steps to  
change your scanner’s BPS (bits per  
second) rate.  
Note: All other functions are inactive  
while you set the BPS rate.  
1. Hold down REMOTE and turn on  
your scanner. The current BPS  
rate appears.  
SETTING THE REMOTE  
COMMUNICATION  
FORMAT  
2. If necessary, press or to  
change the BPS rate.  
3. Press E.  
To set the remote communication for-  
mat so the scanner and computer can  
communicate with each other, use  
standard Windows communications  
software (such as Modem Master or  
Hyper Terminal, not supplied). See  
your software’s documentation for  
more information about operating it.  
4. Turn off the scanner.  
46  
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TURNING THE REMOTE  
FUNCTION ON AND OFF  
Type this  
command  
For this operation  
Scan  
KEY00  
KEY01  
To turn the remote function on or off,  
hold down REMOTE until the scanner  
beeps. SFT flashes when the remote  
function is turned on.  
Manual  
Select channel 0–9  
KEY02 #  
where #  
equals the  
numeric  
number  
PC TO SCANNER  
COMMANDS  
. (decimal point)/Clear  
E (Enter)  
KEY03  
KEY04  
KEY05  
KEY06  
KEY07  
KEY08  
KEY09  
KEY10  
KEY11  
KEY12  
KEY13  
KEY14  
Follow these steps to enter com-  
mands to operate the scanner using  
your computer.  
Priority/scan speed  
L/O/Skip  
1. Make sure your computer and  
scanner are connected (see “Con-  
necting the Scanner to a Com-  
puter” on Page 46).  
Hold/(up)/Remote  
Limit/(down)  
Search  
2. Run your computer’s communica-  
tion software (see “Setting the  
Remote Communication Format”  
on Page 46).  
SVC  
Data/Alert  
Delay  
3. Type a command listed in the fol-  
lowing table then press Enter on  
your computer’s keyboard.  
Trunk  
Shift  
47  
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PC TO SCANNER FUNCTIONS LIST  
For the following functions, type the command then press Enter on your computer’s  
keyboard.  
Function  
Command  
Check frequency stored in a channel #  
PM###  
where ### equals the three-  
digit channel number  
Check if Delay is on  
DL  
Clear the scanner’s memory  
AC  
Important:  
This procedure  
clears all the information  
you have programmed into  
the scanner. Use this proce-  
dure only when you are  
sure your scanner is not  
working properly.  
Check if Data Skip is on  
Check if Lockout is on  
DS  
LO  
LL  
Check the lower limit frequency for a limit  
search  
Set the lower limit frequency for a limit search LL########  
where ######## equals the  
frequency  
Check the upper limit frequency for a limit  
search  
LU  
Set the upper limit frequency for a limit search LU########  
where ######## equals the  
frequency  
Check the status of the current channel  
Go to a specific channel  
MA  
MA###  
where ### equals the three-  
digit channel number  
Check the scanner’s mode  
MD  
48  
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Function  
Command  
Check a bank’s priority channel number  
Note: Enter a letter instead of the bank num-  
ber. Example: “C” for bank 3.  
PC n  
Set a bank’s priority channel  
PC n###  
where ### equals the three-  
digit channel number  
Check if Priority is on  
Turn Priority on/off  
PR  
PRN/PRF  
Add a frequency to a channel  
PM### ########  
where ### equals the three-  
digit channel number and  
######## equals the fre-  
quency  
Check if Squelch Monitor is on  
Turn Squelch Monitor on/off  
Check if Priority Monitor is on  
Turn Priority Monitor on/off  
Check scanner modulation setting  
Check which banks are active  
Select banks for scanning  
QU  
QUN/QUF  
RI  
RIN/RIF  
RM  
SB  
SB x  
where x equals a matching let-  
ter equivalent to the bank you  
want to scan. For example, to  
scan bank 5, type E. Or, to  
scan banks 3 and 7, type CG.  
Check if Squelch is open  
SQ  
Check for a frequency in search skip memory  
SS##  
where ## equals the two-digit  
memory number  
Enter a frequency in search skip memory  
SS########  
where ######## equals the  
frequency  
49  
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Function  
Command  
RF########  
Tune scanner to specific frequency  
where ######## equals the  
frequency  
Check a Trunk ID memory number  
Set a Trunk ID memory number  
IC  
IC x  
where x equals a matching let-  
ter equivalent to the trunk ID  
memory number  
Check if Trunk ID Monitor is on  
Turn Trunk ID Monitor on/off  
ID  
IDN/IDF  
IL###  
Check if Trunk ID number is in lockout mem-  
ory  
Enter a Type 1 Trunk ID into lockout memory  
Enter a Type 2 Trunk ID into lockout memory  
ILR xyy-zz  
where x = a block number  
yy = a fleet number  
zz = a sub fleet number  
ILR nnnnnn  
where nnnnnn equals an ID  
number  
Enter an EDACS Trunk ID into lockout mem-  
ory  
ILR xx-yyz  
where xx = an agency number  
yy = a fleet number  
z = a sub fleet number  
Confirm EDACS ID mode  
Change ID to AFS or decimal mode  
Check if S-Bit on  
AF  
AFN/AFF  
BT  
Turn S-Bit on/off  
BTN/BTF  
Program fleet block on scanner  
FB & # %%  
where & = a bank (A–T)  
# = a fleet map block number  
(0–7)  
%% = a block size indicator  
(00–14)  
50  
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Function  
Command  
Check if Frequency Identification active  
Turn Frequency Identification on/off  
Check for Speaker Muting mode on/off  
Check Speaker Muting mode setting  
Set Speaker Muting on/auto/off  
FI  
FIN/FIF  
MU?  
MU  
MUN/MUA/MUF  
Confrim scan list priority ID location  
PI #  
where # equals an ID location  
number  
Set scan list priority ID location  
PI @#  
where @ equals an ID list num-  
ber and # equals an ID location  
number  
Check EDACS ID range mode  
Set EDACS ID range mode  
RG  
RG @  
where @ equals a partial  
EDACS ID. For example, a  
partial EDACS ID could be 01-,  
01-02.  
Read scanner information  
Check for active trunking banks  
Check status of Tone Detection  
Turn Tone Detection on/off  
Program Talk Group ID  
SI  
TB  
TD  
TDN/TDF  
TG * @%& ##-$$  
where * = a bank number  
@ = an ID scan list  
% = an ID location  
& = a block number  
## = a fleet number  
$$ = a sub fleet number  
Set trunking on bank of channels  
TR & # %%%%%%%% $$$$  
where & = a bank (A–T)  
# = a trunking type  
% = a base frequency  
$ = an offset step  
51  
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SCANNER TO PC RESPONSES  
The scanner sometimes returns responses via your computer and software. You  
might see any of the following codes.  
Code  
Meaning  
Invalid command  
Command format error  
Overrun error  
NG  
ERR  
ORER  
Command received  
Channel number  
Frequency  
OK  
CXXX  
FXXXXXXXX  
Trunking frequency  
TN  
TF  
Conventional fre-  
quency  
(Function) On  
(Function) Off  
xN  
xF  
52  
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SCANNER MODE CODES  
The scanner sometimes returns information about the mode it is operating in via  
your computer and software. You might see any of the following codes  
Code  
00  
01  
02  
03  
04  
05  
06  
07  
08  
09  
10  
11  
12  
13  
14  
15  
16  
17  
18  
For this Mode  
Scan  
Manual  
Limit Search  
Limit Search Hold  
Service Scan  
Service Scan Hold  
Program  
EDACS Program  
System Program  
ID Search  
ID Search Hold  
ID Scan  
ID Manual  
ID Lockout Review  
Search Control Channel  
EDACS ID Search  
EDACS ID Hold  
EDACS ID Scan  
EDACS ID Manual  
53  
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Code  
For this Mode  
EDACS ID Lockout Review  
EDACS Search Control Channel  
VFO  
19  
20  
21  
54  
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A GENERAL GUIDE TO SCANNING  
Reception of the frequencies covered by your scanner is mainly “line-of-sight.” That  
means you usually cannot hear stations that are beyond the horizon.  
GUIDE TO FREQUENCIES  
National Weather Frequencies  
162.400  
162.500  
162.475  
162.550  
162.525  
162.450  
162.425  
Birdie Frequencies  
Every scanner has birdie frequencies. Birdies are signals created inside the scan-  
ner’s receiver. These operating frequencies might interfere with broadcasts on the  
same frequencies. If you program one of these frequencies, you hear only noise on  
that frequency. If the interference is not severe, you might be able to turn SQUELCH  
clockwise to cut out the birdie. This scanner’s birdie frequencies (in MHz) are:  
171.25  
406.7625  
407.8125  
413.175  
413.225  
To find the birdies in your individual scanner, begin by disconnecting the antenna  
and moving it away from the scanner. Make sure that no other nearby radio or TV  
sets are turned on near the scanner. Use the search function and search every fre-  
quency range from its lowest frequency to the highest. Occasionally, the searching  
will stop as if it had found a signal, often without any sound. That is a birdie. Make a  
list of all the birdies in your scanner for future reference.  
55  
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GUIDE TO THE ACTION BANDS  
Typical Band Usage (MHz)  
VHF Band  
Low Range  
6-Meter Amateur  
Aircraft  
U.S. Government  
2-Meter Amateur  
High Range  
FM-TV Audio Broadcast, Wide Band  
New Mobile Narrow Band  
1.3-Meter Amateur Band  
Military Aircraft  
29.00–50.00  
50.00–54.00  
108.00–136.00  
137.00–144.00  
144.00–148.00  
148.00–174.00  
174.00–216.00  
220.00–222.00  
222.00–225.00  
225.00–287.80  
UHF Band  
Military Aircraft  
U.S. Government  
70-Centimeter Amateur  
Low Range  
FM-TV Audio Broadcast, Wide Band  
Public Service  
Conventional Systems  
Conventional/Trunked Systems  
Trunked Systems  
Public Safety  
High Range  
311.00–384.00  
406.00–420.00  
420.00–450.00  
450.00–470.00  
470.00–512.00  
806.00–823.93  
851.00–856.00  
856.00–861.00  
861.00–866.00  
866.00–868.93  
896.11–902.00  
902.00–928.00  
935.00–940.00  
940.00–941.00  
941.00–944.00  
944.00–952.00  
952.00–960.00  
960.00–1240.00  
1240.00–1300.00  
33-Centimeter Amateur  
Private Trunked  
General Trunked  
Fixed Services  
Studio-to-Transmitter Broadcast Links  
Private Fixed Services, Paging  
Aeronautical Navigation  
23-Centimeter Amateur  
56  
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Primary Usage  
As a general rule, most of the radio activity is concentrated on the following fre-  
quencies:  
VHF Band  
Activities  
Frequencies (MHz)  
2-Meter Amateur Band  
Government, Police, and Fire  
Emergency Services  
Railroad  
144.000–148.000  
153.785–155.980  
158.730–159.460  
160.000–161.900  
UHF Band  
Activities  
Frequencies (MHz)  
70-Centimeter Amateur Band FM  
Repeaters  
440.000–450.000  
Land-Mobile “Paired” Frequencies  
Base Stations  
Mobile Units  
Repeater Units  
Control Stations  
450.000–470.000  
451.025–454.950  
456.025–459.950  
460.025–464.975  
465.025–469.975  
Note: Remote control stations and mobile units operate at 5 MHz higher than their  
associated base stations and relay repeater units.  
BAND ALLOCATION  
To help decide which frequency ranges to scan, use the following listing of the typi-  
cal services that use the frequencies your scanner receives. These frequencies are  
subject to change, and might vary from area to area. For a more complete listing,  
refer to the “Police Call Radio Guide including Fire and Emergency Services,” avail-  
able at your local RadioShack store.  
57  
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Abbreviations  
Services  
AIR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Aircraft  
BIFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Boise (ID) Interagency Fire Cache  
BUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Business  
CAP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Civil Air Patrol  
CB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Citizens Band  
CCA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Common Carrier  
CSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Conventional Systems  
CTSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Conventional/Trunked Systems  
FIRE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Fire Department  
HAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amateur (Ham) Radio  
GOVT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Federal Government  
GMR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Mobile Radio  
GTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . General Trunked  
IND. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Industrial Services  
(Manufacturing, Construction, Farming, Forest Products)  
MAR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Military Amateur Radio  
MARI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maritime Limited Coast  
(Coast Guard, Marine Telephone,  
Shipboard Radio, Private Stations)  
MARS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Military Affiliate Radio System  
MED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Emergency/Medical Services  
MIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . U.S. Military  
MOV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Motion Picture/Video Industry  
NEW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . New Mobile Narrow  
NEWS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Relay Press (Newspaper Reporters)  
OIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil/Petroleum Industry  
POL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Police Department  
PUB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Public Services  
(Public Safety, Local Government, Forestry Conservation)  
PSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Public Safety  
PTR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Private Trunked  
ROAD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Road & Highway Maintenance  
RTV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Radio/TV Remote Broadcast Pickup  
TAXI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Taxi Services  
TELB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Mobile Telephone  
(Aircraft, Radio Common Carrier, Landline Companies)  
TELC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Cordless Phones  
TELM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Telephone Maintenance  
TOW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tow Trucks  
TRAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Transportation Services  
(Trucks, Tow Trucks, Buses, Railroad, Other)  
TSB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Trunked Systems  
TVn. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FM-TV Audio Broadcast  
USXX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Government Classified  
UTIL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power & Water Utilities  
WTHR. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Weather  
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HIGH FREQUENCY (HF) (3 MHz30 MHz)  
10-Meter Amateur Band (28.0–29.7 MHz)  
29.000–29.700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM  
VERY HIGH FREQUENCY (VHF) (30 MHz300 MHz)  
VHF Low Band (29.7–50 MHz—in 5 kHz steps)  
29.700–29.790 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND  
29.900–30.550 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
30.580–31.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, PUB  
32.000–32.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
33.020–33.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND, PUB  
34.010–34.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
35.020–35.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, PUB, IND, TELM  
36.000–36.230 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
36.230–36.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil Spill Cleanup, GOVT, MIL  
37.020–37.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB, IND  
38.000–39.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
39.020–39.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB  
40.000–42.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, MARI  
42.020–42.940 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL  
42.960–43.180 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND  
43.220–43.680 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELM, IND, PUB  
43.700–44.600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TRAN  
44.620–46.580 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL, PUB  
46.600–46.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, TELC  
47.020–47.400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB  
47.420. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . American Red Cross  
47.440–49.580 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, PUB  
49.610–49.990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MIL, TELC  
6-Meter Amateur Band (50–54 MHz)  
50.00–54.00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM  
Aircraft Band (108–136 MHz)  
108.000–121.490 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AIR  
121.500. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .AIR Emergency  
121.510–136.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AIR  
U.S. Government Band (137–144 MHz)  
137.000–144.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL  
2-Meter Amateur Band (144–148 MHz)  
144.000–148.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM  
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VHF High Band (148–174 MHz)  
148.050–150.345 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CAP, MAR, MIL  
150.775–150.790 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED  
150.815–150.980 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TOW, Oil Spill Cleanup  
150.995–151.475 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .ROAD, POL  
151.490–151.955 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, BUS  
151.985 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TELM  
152.0075 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED  
152.030–152.240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB  
152.270–152.480 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, TAXI, BUS  
152.510–152.840 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB  
152.870–153.020 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, MOV  
153.035–153.725 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, OIL, UTIL  
153.740–154.445 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB, FIRE  
154.490–154.570 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, BUS  
154.585 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Oil Spill Cleanup  
154.600–154.625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS  
154.655–156.240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED, ROAD, POL, PUB  
156.255–157.425 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OIL, MARI  
157.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED  
157.470–157.515 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TOW  
157.530–157.725 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, TAXI  
157.740 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS  
157.770–158.100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB  
158.130–158.460 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND, OIL, TELM, UTIL  
158.490–158.700 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB  
158.730–159.465 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . POL, PUB, ROAD  
159.480 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OIL  
159.495–161.565 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TRAN  
161.580–162.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . OIL, MARI, RTV  
162.0125–162.35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, MIL, USXX  
162.400–162.550 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . WTHR  
162.5625–162.6375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL, USXX  
162.6625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED  
162.6875–163.225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL, USXX  
163.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED  
163.275–166.225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL, USXX  
166.250 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, RTV, FIRE  
166.275–169.400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT, BIFC  
169.445–169.505 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wireless Mikes, GOVT  
169.55–169.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL, USXX  
170.000–170.150 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIFC, GOVT, RTV, FIRE  
170.175–170.225 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GOVT  
170.245–170.305 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Wireless Mikes  
170.350–170.400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, MIL  
170.425–170.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BIFC  
170.475 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .PUB  
170.4875–173.175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, PUB, Wireless Mikes  
173.225–173.5375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MOV, NEWS, UTIL, MIL  
173.5625–173.5875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MIL Medical/Crash Crews  
173.60–173.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT  
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FM-TV Audio Broadcast, VHF Wide Band (174-216 MHz)  
179.750. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV7  
185.750. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV8  
191.750. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV9  
197.750. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV10  
203.750. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV11  
209.750. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV12  
215.750. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TV13  
New Mobile Narrow Band (220-222 MHz)  
220.000–222.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NEW  
1.3-Meter Amateur Band (222-225)  
220.000–225.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM  
Military Aircraft Band (237.9-287.8 MHz)  
237.900. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Coast Guard Search and Rescue  
239.800. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FAA Weather  
241.000. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Army  
243.000. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Emergency  
255.400. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FAA Flight Service  
257.800. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Civilian towers  
287.800. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Coast Guard Air/Sea Rescue  
ULTRA HIGH FREQUENCY (UHF) (300 MHz3 GHz)  
Military Aircraft Band (319.1-383.9 MHz)  
319.100. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FAA Traffic control  
321.000-336.600. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Force  
342.500-344.600. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .FAA Weather  
346.400-364.200. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air Traffic Control  
381.800-383.900. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Coast Guard  
U. S. Government Band (406–420 MHz)  
406.125–419.975 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .GOVT, USXX  
70-Centimeter Amateur Band (420–450 MHz)  
420.000–450.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM  
Low Band (450–470 MHz)  
450.050–450.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTV  
451.025–452.025 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, OIL, TELM, UTIL  
452.0375–453.00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .IND, TAXI, TRAN TOW, NEWS  
453.0125–454.000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PUB, OIL  
454.025–454.975 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TELB  
455.050–455.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RTV  
457.525–457.600 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .BUS  
458.025–458.175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . MED  
460.0125–460.6375 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . FIRE, POL, PUB  
460.650–462.175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS  
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462.1875–462.450 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS, IND  
462.4625–462.525 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IND, OIL, TELM, UTIL  
462.550–462.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GMR, BUS  
462.9375–463.1875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .MED  
463.200–467.925 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BUS  
FM-TV Audio Broadcast, UHF Wide Band (470–512 MHz)  
(Channels 14 through 20 in 6 MHz steps)  
475.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 14  
481.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 15  
487.750 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 16  
511.750. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Channel 20  
Note: Some cities use the 470–512 MHz band for land/mobile service.  
Conventional Systems Band – Locally Assigned  
851.0125–855.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CSB  
Conventional/Trunked Systems Band – Locally Assigned  
856.0125–860.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CTSB  
Trunked Systems Band – Locally Assigned  
861.0125–865.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . TSB  
Public Safety Band – Locally Assigned  
866.0125–868.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PSB  
33-Centimeter Amateur Band (902–928 MHz)  
902.0000–928.0000 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HAM  
Private Trunked  
935.0125–939.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PTR  
General Trunked  
940.0125–940.9875 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GTR  
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20-432.fm Page 63 Friday, July 14, 2000 11:30 AM  
FREQUENCY CONVERSION  
The tuning location of a station can be expressed in frequency (kHz or MHz) or in  
wavelength (meters). The following information can help you make the necessary  
conversions.  
1 MHz (million) = 1,000 kHz (thousand)  
To convert MHz to kHz, multiply the number of megahertz by 1,000:  
9.62 (MHz) × 1000 = 9620 kHz  
To convert from kHz to MHz, divide the number of kilohertz by 1,000:  
2780 (kHz) ÷ 1000 = 2.780 MHz  
To convert MHz to meters, divide 300 by the number of megahertz:  
300 ÷ 7.1 MHz = 42.25 meters  
63  
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20-432.fm Page 64 Friday, July 14, 2000 11:30 AM  
TROUBLESHOOTING  
If your scanner is not working as it should, these suggestions might help you elimi-  
nate the problem. If the scanner still does not operate properly, take it to your local  
RadioShack store for assistance.  
PROBLEM  
POSSIBLE CAUSE  
REMEDY  
Scanner is on but will not  
scan.  
SQUELCH is not correctly  
adjusted.  
Adjust SQUELCH clock-  
wise.  
Only one channel or no  
channels are stored.  
Store frequencies into more  
than one channel.  
Scanner is totally inopera-  
tive.  
No power.  
Make sure the scanner is  
plugged into a working AC  
or DC outlet.  
The AC or DC adapter is not Be sure the adapter’s barrel  
connected.  
plug is fully inserted into the  
DC 12V jack.  
The scanner must be reset. Reset the scanner (see  
“Resetting the Scanner” on  
Page 66).  
Poor or no reception  
An antenna is not con-  
nected or connected incor-  
rectly.  
Make sure an antenna is  
connected to the scanner.  
Errorappears.  
Programming error.  
Reprogram the frequency  
correctly, including the deci-  
mal point.  
In the scan mode, the scan- Programmed frequencies  
Avoid programming fre-  
ner locks on frequencies  
that have an unclear trans-  
mission.  
are the same as “birdie” fre- quencies listed under  
quencies.  
“Birdie Frequencies” on  
Page 55 or only listen to  
them manually.  
Scanner will not track a  
trunked system.  
The transmission might not  
use a system that can be  
tracked by your scanner.  
Scan another transmission.  
The data frequency is miss- Find the data frequency  
ing.  
(see “Programming Trunked  
Frequencies” on Page 32).  
64  
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20-432.fm Page 65 Friday, July 14, 2000 11:30 AM  
PROBLEM  
POSSIBLE CAUSE  
REMEDY  
Scanner will not track a  
trunked system  
The system you are trying  
to track is a Type I System,  
and the scanner is set to  
scan Type II systems.  
Set the scanner to receive  
Type I trunked frequencies.  
See “Scanning Type I and  
Hybrid Trunked Systems”  
on Page 40.  
(continued)  
Scanner will not stop while  
scanning a scan list  
The IDs you have stored  
are not active.  
Scan another transmission.  
Scanner will not acquire a  
data channel  
Squelch is not correctly  
adjusted.  
See “Setting Squelch for the  
Trunk Scanning Mode” on  
Page 31.  
The frequency used for the  
data channel is missing.  
Add the frequency used for  
the data channel to the fre-  
quency list. See “Program-  
ming Trunked Frequencies”  
on Page 32.  
Missing replies to conversa- The system you are trying  
Set the scanner to receive  
Type I trunked frequencies.  
See “Scanning Type I and  
Hybrid Trunked Systems”  
on Page 40.  
tions  
to track is a Type I system,  
and the scanner is set to  
scan Type II systems.  
The selected fleet map is  
incorrect.  
Try another preset fleet map  
or program your own fleet  
map. See “Scanning Type I  
and Hybrid Trunked Sys-  
tems” on Page 40.  
Not all of the trunk’s fre-  
quencies have been  
entered.  
Enter all of the trunk’s fre-  
quencies.  
Channel activity indicators  
are lighting but no sound is  
heard.  
The transmission might be a Scan for another transmis-  
private or telephone inter-  
connect call. The scanner  
does not scan these types  
of transmissions.  
sion.  
The ID is locked out.  
Unlock the ID (see “Unlock-  
ing a Single ID” on Page 36  
or “Unlocking All IDs” on  
Page 36).  
65  
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20-432.fm Page 66 Friday, July 14, 2000 11:30 AM  
RESETTING THE  
SCANNER  
You might need to reset the scanner  
if:  
• the scanner’s display locks up.  
• the scanner does not work prop-  
erly after you connect power.  
• the scanner is dropped or sub-  
jected to a physical or electrical  
shock.  
Caution: This procedure clears all the  
information you have programmed  
into the scanner. Use this procedure  
only when you are sure your scanner  
is not working properly.  
To reset the scanner, turn it off. Then,  
while you hold down 2 and 9, turn on  
the scanner. CLEAr appears for  
about 5 seconds while the scanner re-  
sets.  
Caution: Do not turn off the scanner  
while it is resetting.  
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20-432.fm Page 67 Friday, July 14, 2000 11:30 AM  
CARE AND MAINTENANCE  
Your RadioShack PRO-2052 1000-Channel Dual Trunking TrunkTracker Home  
Scanner is an example of superior design and craftsmanship. The following sug-  
gestions will help you care for your scanner so you can enjoy it for years.  
Keep the scanner dry. If it gets wet, wipe it dry immediately. Liquids  
might contain minerals that can corrode the electronic circuits.  
Use and store the scanner only in normal temperature environments.  
Temperature extremes can shorten the life of electronic devices and  
distort or melt plastic parts.  
Keep the scanner away from dust and dirt, which can cause premature  
wear of parts.  
Handle the scanner gently and carefully. Dropping it can damage cir-  
cuit boards and cases and can cause the scanner to work improperly.  
Wipe the scanner with a damp cloth occasionally to keep it looking  
new. Do not use harsh chemicals, cleaning solvents, or strong deter-  
gents to clean the scanner.  
Modifying or tampering with the scanner’s internal components can cause a mal-  
function and might invalidate its warranty and void your FCC authorization to oper-  
ate it. If your scanner is not performing as it should, take it to your local  
RadioShack store for assistance.  
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20-432.fm Page 68 Friday, July 14, 2000 11:30 AM  
SPECIFICATIONS  
Frequency Coverage (MHz):  
10 Meter Amateur Radio ...................................... 29.000–29.6950 (in 5 kHz steps)  
VHF Lo ............................................................... 29.7000–49.9950 (in 5 kHz steps)  
6 Meter Amateur Radio ...................................... 50.0000–54.0000 (in 5 kHz steps)  
Aircraft ....................................................... 108.0000–136.9750 (in 12.5 kHz steps)  
Government ................................................... 137.0000–143.9950 (in 5 kHz steps)  
2 Meter Amateur Radio .................................... 144.000–147.9950 (in 5 kHz steps)  
VHF Hi ........................................................... 148.0000–174.0000 (in 5 kHz steps)  
VHF TV ........................................................... 179.7500-215.7500 (in 6MHz steps)  
1 Meter Amateur Radio ...................................... 216.000-224.995 (in 5 kHz steps)  
VHF Aircraft ................................................ 225.000-399.9875 (in 12.5 kHz steps)  
Amateur Radio/Government ..................... 400.0000–419.9875 (in 12.5 kHz steps)  
70-cm Amateur Radio ............................... 420.0000–449.9875 (in 12.5 kHz steps)  
UHF Standard ........................................... 450.0000–469.9875 (in 12.5 kHz steps)  
UHF “T” ..................................................... 470.0000–512.0000 (in 12.5 kHz steps)  
Public Service ........................................... 806.0000–823.9375 (in 12.5 kHz steps)  
Public Service/Trunking Repeater ............. 851.0000–868.9875 (in 12.5 kHz steps)  
Public Service ........................................... 896.1125–956.0000 (in 12.5 kHz steps)  
25-cm Amateur Radio ........................... 1240.0000-1300.0000 (in 12.5 kHz steps)  
Channels of Operation .................... Any 1000 channels in any band combinations  
(50 channels × 20 banks), 50 search skip memories, and  
20 service search skip memories  
Sensitivity (S+N)/N=20 dB:  
29–54 MHz .............................................................................................. 0.5 µV  
108–136.975 MHz ................................................................................... 1.5 µV  
137–174 MHz .......................................................................................... 0.5 µV  
179.75-215.75 MHz ................................................................................. 3.0 µV  
216-224.995 MHz .................................................................................... 0.5 µV  
225-399.9875 MHz .................................................................................. 1.5 µV  
400–512 MHz .......................................................................................... 0.4 µV  
806–956 MHz .......................................................................................... 1.0 µV  
1240-1300 MHz ....................................................................................... 2.0 µV  
Spurious Rejection (@40.85 MHz) ................................................................ 60 dB  
Selectivity:  
±10 kHz ................................................................................................... –6 dB  
±15 kHz ................................................................................................. –50 dB  
IF Rejection (@162.4 MHz) ........................................................................... 80 dB  
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20-432.fm Page 69 Friday, July 14, 2000 11:30 AM  
Search Speed:  
Normal .............................................................................100 Steps/Sec (Max)  
Hyper .......................................... 300 Steps/Sec (Max) (only 5 kHz step band)  
Scan Speed ................................................................ 50 Channels/Sec. (Nominal)  
Priority Sampling ..................................................................................... 2 Seconds  
Delay Time ............................................................................................. 2 Seconds  
IF Frequencies:  
1st IF ......................................... 29–310.9875 MHz: 380.6050–380.7000 MHz  
311–512 MHz: 254.3125–254.4000 MHz  
806–956 MHz: 380.7000–380.7875 MHz  
1240–1300 MHz: 380.7000-380.7875 MHz  
2nd IF ............................................................... 179.75–215.75 MHz: 10.7 MHz  
Other Bands 10.85 MHz  
3rd IF .................................................................................................... 450 kHz  
Squelch Sensitivity:  
Threshold ............................................................................... Less than 0.6 µV  
Tight ............................................................. VHF Lo, Hi, UHF (S + N)/N 25 dB  
Aircraft (S + N)/N 15 dB  
Antenna Impedance ................................................................................... 50 ohms  
Audio Power .................................................................................. 1.1 W Maximum  
1
4
Built-In Speaker .......................................................... 2 / Inches (57 mm), 8 ohms  
Operating Temperature ....................................................................–10 C to + 50 C  
Power Requirements:  
AC Adapter ....................................................................................12 Volts DC  
DC Adapter ................................................................................... 12 Volts DC  
Current Drain:  
At Squelched ..........................................................................................240 mA  
At Full Output .........................................................................................440 mA  
3
1
11  
4
16  
16  
Dimensions (HWD) ........................................................... 2 / × 8 / × 7 / Inches  
(70 × 205 × 195 mm)  
Weight ........................................................................................................ 26.5 oz.  
(750 g)  
Specifications are typical; individual units might vary. Specifications are subject to  
change and improvement without notice.  
69  
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20-432.fm Page 70 Friday, July 14, 2000 11:30 AM  
NOTES  
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20-432.fm Page 72 Friday, July 14, 2000 11:30 AM  
Limited One-Year Warranty  
This product is warranted by RadioShack against manufacturing defects in material and workman-  
ship under normal use for one (1) year from the date of purchase from RadioShack company-owned  
stores and authorized RadioShack franchisees and dealers. EXCEPT AS PROVIDED HEREIN, Ra-  
dioShack MAKES NO EXPRESS WARRANTIES AND ANY IMPLIED WARRANTIES, INCLUDING  
THOSE OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE LIMITED  
IN DURATION TO THE DURATION OF THE WRITTEN LIMITED WARRANTIES CONTAINED  
HEREIN. EXCEPT AS PROVIDED HEREIN, RadioShack SHALL HAVE NO LIABILITY OR RE-  
SPONSIBILITY TO CUSTOMER OR ANY OTHER PERSON OR ENTITY WITH RESPECT TO ANY  
LIABILITY, LOSS OR DAMAGE CAUSED DIRECTLY OR INDIRECTLY BY USE OR PERFOR-  
MANCE OF THE PRODUCT OR ARISING OUT OF ANY BREACH OF THIS WARRANTY, IN-  
CLUDING, BUT NOT LIMITED TO, ANY DAMAGES RESULTING FROM INCONVENIENCE, LOSS  
OF TIME, DATA, PROPERTY, REVENUE, OR PROFIT OR ANY INDIRECT, SPECIAL, INCIDEN-  
TAL, OR CONSEQUENTIAL DAMAGES, EVEN IF RadioShack HAS BEEN ADVISED OF THE  
POSSIBILITY OF SUCH DAMAGES.  
Some states do not allow the limitations on how long an implied warranty lasts or the exclusion of in-  
cidental or consequential damages, so the above limitations or exclusions may not apply to you.  
In the event of a product defect during the warranty period, take the product and the RadioShack  
sales receipt as proof of purchase date to any RadioShack store. RadioShack will, at its option, un-  
less otherwise provided by law: (a) correct the defect by product repair without charge for parts and  
labor; (b) replace the product with one of the same or similar design; or (c) refund the purchase  
price. All replaced parts and products, and products on which a refund is made, become the prop-  
erty of RadioShack. New or reconditioned parts and products may be used in the performance of  
warranty service. Repaired or replaced parts and products are warranted for the remainder of the  
original warranty period. You will be charged for repair or replacement of the product made after the  
expiration of the warranty period.  
This warranty does not cover: (a) damage or failure caused by or attributable to acts of God, abuse,  
accident, misuse, improper or abnormal usage, failure to follow instructions, improper installation or  
maintenance, alteration, lightning or other incidence of excess voltage or current; (b) any repairs  
other than those provided by a RadioShack Authorized Service Facility; (c) consumables such as  
fuses or batteries; (d) cosmetic damage; (e) transportation, shipping or insurance costs; or (f) costs  
of product removal, installation, set-up service adjustment or reinstallation.  
This warranty gives you specific legal rights, and you may also have other rights which vary from  
state to state.  
RadioShack Customer Relations, 200 Taylor Street, 6th Floor, Fort Worth, TX 76102  
04/99  
We Service What We Sell  
RadioShack  
A Division of Tandy Corporation  
Fort Worth, Texas 76102  
UBZZ01307ZZ  
Printed in the Philippines  
09A99  
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