User Manual
VOR/ILS Analyzer EVS200
0796.1800.02
0798.1988.12-08
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EC Certificate of Conformity
Certificate No.:
This is to certify that
Equipment type:
Designation:
0201
EVS200
VOR/ILS Analyzer
796.1800.02
Order No.:
complies with the provisions of the Directive of the Council of the European Union on the
approximation of the laws of the Member States
− relating to electrical equipment for use within defined voltage limits
(73/23/EEC revised by 93/68/EEC)
− relating to electromagnetic compatibility
(89/336/EEC revised by 91/263/EEC, 92/31/EEC, 93/68/EEC)
Conformity is proven by compliance with the following standards:
− EN61010-1 : 1994 + A2 : 1996 + A2Ber : 1998 + Ber1 : 1998
− EN50081-1 : 1992
− EN50082-1 : 1992
Affixing the EC conformity mark as from 2002-01
ROHDE & SCHWARZ GmbH & Co. KG
Werk Köln
Graf-Zeppelin-Str. 18, D-51147 Cologne
Cologne, 2002-01-17
Quality management 5C-Q / Norres
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Safety Instructions
This unit has been designed and tested in accordance with the EC Certificate of Conformity and has left the
manufacturer’s plant in a condition fully complying with safety standards.
To maintain this condition and to ensure safe operation, the user must observe all instructions and warnings
given in this operating manual.
Safety-related symbols used on equipment and documentation from R&S:
Observe
operating
instructions
Weight
indication for
units >18 kg
PE terminal
Ground
terminal
Danger!
Warning!
Ground
Attention!
Electrostatic
sensitive devi-
ces require
Shock hazard Hot surfaces
special care
1. The unit may be used only in the operating con-
ditions and positions specified by the manufac-
turer. Unless otherwise agreed, the following
applies to R&S products:
7. It is not permissible to interrupt the PE conduc-
tor intentionally, neither in the incoming cable
nor on the unit itself as this may cause the unit
to become electrically hazardous.
Pollution severity 2, overvoltage category 2, IP
degree of protection 2X, altitude max. 2000 m.
The unit may be operated only from supply net-
works fused with max. 16 A.
Any extension lines or multiple socket outlets
used must be checked for compliance with rele-
vant safety standards at regular intervals.
8. If the unit has no power switch for disconnection
from the AC supply, the plug of the connecting
cable is regarded as the disconnecting device.
In such cases it must be ensured that the power
plug is easily reachable and accessible at all
times (length of connecting cable approx. 2 m).
Functional or electronic switches are not suit-
able for providing disconnection from the AC
supply.
2. For measurements in circuits with voltages Vrms
> 30 V, suitable measures should be taken to
avoid any hazards.
(using, for example, appropriate measuring
equipment, fusing, current limiting, electrical
separation, insulation).
3. If the unit is to be permanently wired, the PE
terminal of the unit must first be connected to
the PE conductor on site before any other con-
nections are made (installation and cabling of
the unit to be performed only by qualified techni-
cal personnel).
If units without power switches are integrated in
racks or systems, a disconnecting device must
be provided at system level.
9. Applicable local or national safety regulations
and rules for the prevention of accidents must
be observed in all work performed.
4. For permanently installed units without built-in
fuses, circuit breakers or similar protective de-
vices, the supply circuit must be fused such as
to provide suitable protection for the users and
equipment.
Prior to performing any work on the unit or
opening the unit, the latter must be discon-
nected from the supply network.
Any adjustments, replacements of parts, main-
tenance or repair may be carried out only by
authorized R&S technical personnel.
Only original parts may be used for replacing
parts relevant to safety (eg power switches,
power transformers, fuses). A safety test must
be performed after each replacement of parts
relevant to safety.
(visual inspection, PE conductor test, insulation-
resistance, leakage-current measurement, func-
tional test).
5. Prior to switching on the unit, it must be ensured
that the nominal voltage set on the unit matches
the nominal voltage of the AC supply network.
If a different voltage is to be set, the power fuse
of the unit may have to be changed accordingly.
6. Units of protection class I with disconnectible
AC supply cable and appliance connector may
be operated only from a power socket with
earthing contact and with the PE conductor con-
nected.
continued overleaf
095.1000 Sheet 17
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Safety Instructions
Ensure that the connections with information tech-
nology equipment comply with IEC950/EN60950.
11. Lithium batteries must not be exposed to high
temperatures or fire.
12. Equipment returned or sent in for repair must be
packed in the original packing or in packing with
electrostatic and mechanical protection.
13. Electrostatics via the connectors may da-
mage the equipment. For the safe handling
and operation of the equipment, appropriate
measures against electrostatics should be im-
plemented.
Keep batteries away from children.
If the battery is replaced improperly, there is
danger of explosion. Only replace the battery by
R&S type (see spare part list)
Lithium batteries are suitable for environmental-
ly-friendly disposal or specialized recycling. Dis-
pose them into appropriate containers, only.
14. Any additional safety instructions given in this
manual are also to be observed.
Do not short-circuit the battery.
095.1000 Sheet 18
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VOR/ILS Analyzer EVS200
Contents
Contents
Chapter
Page
1.
Operator Information
- Important operator information
- Unpacking
1
2
3
4
5
6
- Application of the unit
- Characteristics of the unit
- Unit layout frontview
- Unit layout rearview
2.
Preparation for Operation
- Placing the unit
- Mains operation
7
7
7
-
Mains connection
- DC connection
8
8
8
-
-
Assembling the FO Cable Jack
Finishing and connection to the Vehicle Board Supply
- Connection of Signal/Control Inputs/Outputs
9
9
9
9
10
10
-
-
-
-
-
Antenna connection
AF OUT
RS-232-Interface
External AF input
DSP output
3.
Operation
- Switch On/switch Off the unit at mains supply
- Switch On/switch Off the unit at VDC supply
- Switch on procedure
11
11
11
12
12
- Selftest (BITE)
- Battery operation
- Operation of the unit
13
13
-
General operating instructions of the VOR/ILS Analyzer EVS200
-
SETUP-Mode
14
-
Operating instructions of SETUP-Mode
15
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VOR/ILS Analyzer EVS200
Chapter
Contents
Page
-
ILS-Mode
16
16
17
18
20
-
-
-
-
Operating instructions of ILS-Mode
Operating instructions of Y / t setup menu
Operating instructions of STORE DDM menu
Signal parameters on ILS Display
-
-
-
VOR-Mode
21
21
22
-
-
Operating instructions of VOR-Mode
Signal parameters on VOR Display
BEACON-Mode
23
23
24
-
-
Operating instructions of BEACON-Mode
Signal parameters on BEACON Display
∆ LEVEL-Mode
25
25
26
28
-
-
-
Operating instructions of ∆ Level-Mode
Storing and recalling reference levels
Signal parameters on ∆ Level Display
-
SPECTRUM-Mode
Operating instructions of Spectrum-Mode
29
29
-
- RS-232-Interface operation
30
-
-
-
-
-
COM-Parameter
30
30
30
31
Handshake
Control commands
Unit related control commands
Mode related control commands
35
35
44
49
50
-
-
-
-
ILS-Mode
VOR-Mode
∆ Level-Mode
Beacon-Mode
4.
Interfaces
- Antenna input
- AF output
53
53
53
53
54
54
54
54
- Headphone connection
- XY-Tracer connection
- External AF input
- RS-232-Interface
- External VDC connection
- Mains connection
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VOR/ILS Analyzer EVS200
Chapter
Contents
Page
5.
6.
Service
- Service
- Warranty
55
55
Technical Specification
- Technical data
- General data
- Accessories
56
58
59
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VOR/ILS Analyzer EVS200
Chapter 1: Operator Information
Important operator information
The symbols used in this description have the following meaning.
Attention: increased vigilance!
Indexfinger: indicates important details
/ꢀ Workstep, alphanumeric sequence definition of a workstep!
Before connecting the unit to a vehicle’s 12-VDC board supply, pay
attention that the battery’s negative pole is connected to ground
(GROUND ) of the vehicle!
Finishing and connection of the auxiliary FO cable jack is
described in chapter „VDC connection" in section 2 "Preparation for
Operating".
Whilst time of warranty a defective internal battery (option) may
only be changed by Rohde & Schwarz service personnel!
Also after the warranty time it is recommended that
only specialists change the internal battery.
0796.1800.02
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VOR/ILS Analyzer EVS200
Chapter 1: Operator Information
Unpacking
1. Unpack the VOR/ILS Analyzer EVS200.
2. Remove the protective covers.
3. Inspect the unit for evident damage (visual check).
4. Check the auxiliary accessory!
-
-
-
FO-cabel jack (0018.6700.00)
power cable
operating instructions (0798.1988.12-07)
Keep the packing material for reusing!
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VOR/ILS Analyzer EVS200
Chapter 1: Operator Information
Application of the unit
The VOR/ILS Analyzer EVS200 is used for checking terrestrial radio navigation facilities at airports.
Following components of ILS- and VOR-systems can be checked:
ꢀ
approach to land ILS (Instrument Landing System)
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
direction localizer LLZ (Localizer)
glideslope system GS (Glideslope)
OM (Outer Marker)
MM (Middle Marker)
IM (Inner Marker)
108 to 118 MHz
320 to 340 MHz
75 MHz
75 MHz
75 MHz
ꢀ
short and medium range navigation
VOR (VHF Omni Range) omnidirectional beacon 108 to 118 MHz
ꢀ
The following measurements can be carried out:
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
DDM (indication also in 1 / µA / %), SDM, modulation factor
absolute level
delta level (∆ level)
VOR parameter
ILS parameter
75-MHz beacon parameter
Ranges for measurements are e.g:
ꢀ
dynamic runway surveying (limited through high measurement speed
(90 measurements/s))
ꢀ
ꢀ
ꢀ
ꢀ
static distant field surveying
function monitoring of transmitting field stations with data tele-transmitting
surveying of transmitting antenna characteristics through "∆level-mode"
Clearance & Glidepath (common parameter analysis without disconnecting the
transmitting station)
ꢀ
measuring and evaluating of corresponding parameters at high interference intensity
Due to versatile power supply facilities the VOR/ILS Analyzer EVS200 is suitable for operation in field
(battery supply), in vehicles (12-V board supply), and in the lab (AC supply). Among others it is pos-
sible to remote control the unit via the RS-232-Interface and recalling all obtained data. Further more
the corresponding parameters of the DSP can be taken at the multifunction output (DSP OUT) for
further analysis (e.g. XY-tracer).
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VOR/ILS Analyzer EVS200
Chapter 1: Operator Information
Characteristics of the unit
Remarkable characteristics of the VOR/ILS Analyzer EVS200 are:
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
high accuracy
easy handling
low power consumption
very compact and light design for mobile operation
battery operation (option) for mobile operation
external DC operation for mobile operation
remote control through RS-232-Interface
selftest facillty (BITE)
digital signal processing (DSP) on ILS and VOR analysys
high rapidity of measurement (ILS = 90 measurements/s)
immediately display of all measurement data
DDM-/SDM-measurements
calibration of Y / t recorder (DDM = 0)
∆ level measurements (4 reference levels can be stored)
installed loudspeaker and headphone output
suitable for 19" rack assembly
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VOR/ILS Analyzer EVS200
Chapter 1: Operator Information
Unit layout frontview
LC display description
battery indication
(only for built-in battery (option))
mode indication
bargraph center frequency indication
receiver frequency
bargraph indication
receiver signal level
squelch threshold
receiver signal level
signal parameters
softkeys
Softkeys
Softkeys (program dependent functional keys)
are allocated to the conforming operation mode.
The softkey function is indicated on the display.
LC display
(illuminated dot matrix display)
POWER
Set the unit into operation, on mains
On the display all active modes are
sensitive (grey background)!
supply and in postion "Standby" the
installed battery (Option) will be
charged.
volume control
mode keys
With the potentiometer "Volume" the
loudspeaker´s and headphone´s
volume can be set.
The mode keys select the corresponding
measurment and setting mode which will
be indicated by the yellow LED.
A selected mode will be indicated on the
display. Mode settings will be performed
with the softkeys.
headphone connector
only for connecting headphones
with soundproofing!
e.g. R&S order no.0708.9010.00
rollkey
On principle all possible menu settings will be performed
with the rollkey.
AF output
BNC socket
output level:
200 mVrms / 50 Ω
by 50 % AM part
An exception is the "Setup-Menu" where settings must
be performed with the designated softkeys..
turning direction
for increasing values
turning direction
for decreasing values
antenna input
BNC socket
frequency setting
max. +15 dBm / 50 Ω
input level:
VSWR:
The frequency changes depending on the rollkey´s
turning speed in following steps:
<1.5
contrast control
adjustment of display contrast
⇒
- turn rollkey slow 5-kHz-steps
(depending upon the setup-settings)
⇒
- turn rollkey fast
100-kHz-steps
Rollkey operation is only possible when
"VAR-LOCK" function is switched off!
E-8
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VOR/ILS Analyzer EVS200
Chapter 1: Operator Information
Unit layout rearview
DSP output
external AF input
The scaling of the XY values can be set
in the setup / Y / t setup (ILS mode) for
the localizer and glideslope mode.
BNC socket
The external AF input is to select
in the setup.
BNC socket
1 to 2 Vrms / 50 Ω
input level:
RS-232-Interface
SUB-D socket:
COM parameter:
BAUD rate:
9pole
N81
1200, 2400,
4800, 9600,
19200 adjustable in
the setup
antenna input
not applicable (optional)
mains fuses
F1 / F2
IEC127-T800H / 250 V
mains switch
Master switch on/off only
for mains operation
mains connector
socket
87 to 265 VAC
47 to 63 Hz
external VDC input
When an external VDC supply is connected
the installed battery (option) is switched off.
Uinput 9 to 15 VDC
Imax 2 A
E-8
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VOR/ILS Analyzer EVS200
Chapter 2: Preparation for Operation
Preparation for operation
Placing the unit
The VOR/ILS Analyzer EVS200 can be operated in any position without reduction in its function. Even
shocks during normal transportation or on mobile operation don’t reduce its function.
The unit works at ambient temperatures of -5 to +40°C.
Mains operation
Safety Rules
The VOR/ILS Analyzer EVS200 meets the safety rules in ag-
reement with VDE 0411 and VDE 0804 of safety class I. In
agreement with safety class I all mains circuitry must be insula-
ted and the requirement is a good conductive and durable
together and ground wire connection of all touchable, con-
ductive parts of the unit which can directly be alive in case of a
failure.
Mains connector (earthed plug) put only into a protective
contact socket. If there is a connector it must durable be
connected with a ground wire. The ground wire must not
be insulated.
Mains connection
Connect the VOR/ILS Analyzer EVS200 with the supplied power cord to the AC supply
(87 to 265 VAC / 47 to 63 Hz or corresponding to the technical data).
If the unit shall be connected to another AC supply the
corresponding safety rules must be observed!
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VOR/ILS Analyzer EVS200
DC connection
Chapter 2: Preparation for Operation
Only connect the unit when the minus pole of the battery
is connected to vehicles ground (GROUND )!
input voltage: 9 to 15 VDC
Assembling the FO Cable Jack
Finish the supplied FO cable jack (0018.6700) as following with commercial PVC cables.
cable specification
FO cable jack
PVC wiring performance according VDE 0281
wire cross section 1.0 mm2 or more
colour RED for +VDC
order no.: 0018.6700
colour BLUE for ground(
)
Pin connection of the FO cable jack
Assembling the FO cable jack
Finishing and connection to the Vehicle Board Supply
ꢀ
Strip the cable end ca. 8 mm and mount multicore.
Draw the cable through the enclosure and connect it according to the above pin connection of
the FO cable jack.
Fit the pull-relief and assemble the FO cable jack.
Connect the cable to the vehicle board supply.
When connecting the finished cable to the 12-VDC vehicle
board supply there is to perform a protection by a cable fuse
(T2.0 A) or a fuse on board!
Connect and lock the FO cable jack in the VDC input at the rear of the unit.
0796.1800.02
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VOR/ILS Analyzer EVS200
Chapter 2: Preparation for Operation
Connection of Signal/Control Inputs/Outputs
Antenna connection
Via the RF INPUT at the frontside the VOR/ILS Analyzer EVS200 can be connected with a receiver
antenna which agrees to frequency range.
As an option a RF input at the unit’s rear side is possible.
AF OUT
Via the AF OUT at the frontside the demodulated AF signal will be output.
ꢀ
AF signal
bandwidth:...............................300 Hz to 4 kHz
output level:.............................approx.: 200 mVrms / 50 Ω / by 50% AM part
e.g. VOR/ILS Analyzer Þ=oscilloscope
RS-232-Interface
Via the RS-232-Interface at the rearside all essential unit functions of the VOR/ILS Analyzer EVS200
can be remote controlled with a PC terminal. For that purpose the unit can be operated with
commercial terminal programs (e.g. Telix, Procomm, etc.)
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VOR/ILS Analyzer EVS200
External AF input
Chapter 2: Preparation for Operation
Via the AF input (AF-EXT) at the rear side the unit can be fed with an AF signal for further analysis of
typical AF parameters (e.g. level, frequency). This is very applicable for receivers which cannot per-
form AF analysis.
input level:
approx.: 1 to 2 Vrms / 50 Ω
e.g. VOR/ILS Analyzer Þ=external receiver
Connection AF-EXT of the VOR/ILS Analyzer EVS200 with
the AF output of an external receiver
DSP output
On the DSP-OUT at the rearside e.g. a XY-tracer can be connected. The scaling of the XY values
can be set for any mode (localizer/glideslope) in the setup (DDM Y / t-RANGE) or in ILS-Mode
(Y / t-SETUP).
output signals in VOR- and ILS-Mode:
ILS-Mode
VOR-Mode
Display 1 normalized DDM-values
(DC-voltage)
no output
Range 1 to 4
Display 2 voice-frequency
voice-frequency
(300 to 3000 Hz)
(300 to 3000 Hz)
(corresponding
DC voltage)
scaling in the setup:
(0 V ±5 mV)
0 DDM (1 V ±5 mV)
Localizer
Glideslope
Range 1
Range 2
Range 3
Range 4
0.0 ±25%
0 ±0.25 DDM
0.0 ±50%
0.0 ±0.5 DDM
0.0 ±2.5%
0 ±0.025 DDM
0.0 ±5%
0.0 ±0.05 DDM
0.0 ±2.58%
8.75 ±5%
0.0 ±0.0258 DDM
0.0875 ±0.05 DDM
0.0 ±50%
17.5 +5%
0.175 +0.05 DDM
0.0 ±0.5 DDM
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Operation
Switch On/switch Off the unit at mains supply
ꢀ
With the mains switch at the rearside
switch the unit on or off.
With the switch "POWER" at the front
side switch the unit on or "STANDBY".
On switch position "STANDBY" the in-
stalled battery (option) will be charged.
Details see item "Battery Operation"
(page 12).
Switch On/switch Off the unit at VDC supply
When the unit is supplied from the installed battery (option) or through the external DC input it must
be switched on or to "STANDBY" only with the Switch "POWER" at the frontside.
On external DC supply of the unit the installed battery
(option) will not be charged!
Switch on procedure
During the switch on procedure the VOR/ILS
Analyzer EVS200 performs a selftest (BITE). The
tested functions are indicated with "OK". This test
takes approx. 5 s. After that automatically it is
switched over to the startup mode which was set
in the setup.
Because of the displayed battery voltage
(U BATT) it is possible to value the charging
state of the installed battery (option).
ß
Malfunctions of the BITE will be indicated by
"FAIL". In that case the unit does not switch over
to the startup mode (see also item "Selftest").
0796.1800.02
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Selftest (BITE)
The selftest checks:
all operating voltages,
host processor,
memory,
DSP processor.
In case of an error the determined functional unit will be indicated with a "FAIL". If the internal
operating voltages totally fail or if they deviate extraordinary from the tolerances a selftest cannot
be carried out.
Error:
In case of an error the unit generally should be
switched off and after a few seconds it schould be
switched on again. If the error message is displayed
again it is recommended to send the unit to the
service, corresponding to Chapter 5 (Service).
Battery operation
The battery operation of the VOR/ILS Analyzer EVS200 is an optional component. It is always pos-
sible to retrofit the unit with this mode.
The unit automatically goes into battery operation when the external power supply (DC/AC) is switched
or cut off. The battery operation is indicated on the display by the battery symbol (
) in each mode.
The operation time is >100 minutes (max. brightness) or >150 minutes (at average brightness)
with a completely charged battery.
The charging state can be seen from the battery symbol on the display:
100% battery power
approx. 75 to 25% battery power
flashing symbol, approx. only 5 minutes operation is
ensured. Battery must be charged.
The battery will be charged on AC operation (as well during operation as on "STANDBY") and should
take at least 12 hours (charging time).
After 4 to 5 years or when defect the battery must be
changed according to Chapter 5 "Service".
0796.1800.02
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VOR/ILS Analyzer EVS200
Operation of the unit
Chapter 3: Operation
Because of the many universal measuring functions of the VOR/ILS Analyzer EVS200 the operation
has to be carried out according to the following instructions. Basically all measurement parameter set-
tings are realized through softkeys and the mode keys. An activated mode is shown by a luminous
LED (beside the belonging mode key). All important signal parameters are analyzed by the DSP (digital
signal processor) and indicated on the display. Due to the variety of the analyzed parameters the indi-
cation in the ILS and VOR mode is subdivided into two display parts ("DISPL 1/2" and
DISPL 2/2").
The RS-232-Interface operation of the VOR/ILS Analyzer EVS200 is
described in section "Operating the VOR/ILS ANALYZER EVS200
via RS-232-Interface"
General operating instructions of the VOR/ILS Analyzer EVS200
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VOR/ILS Analyzer EVS200
SETUP-Mode
Chapter 3: Operation
In the following table all possible parameters are listed and its functions are described. Furthermore all
possible setting values per parameter are shown. Next a sequence chart of the operating instructions
in the SETUP mode is following.
Changes in the SETUP can be saved
with the softkey "SAVE".
parameter
description
baud rate setting
setting value
RS232 BAUDRATE
1200, 2400, 4800,
9600, 19200
VOR ANGLE-RESOLUTION BEARING-angle resolution
0,01° / 0,05°
DDM/SDM AVG-FACTOR
factor for determining the number of
1, 2, 4, 8, 16, 32, 64
measurements which form the arithmeti-
cal average
DDM Y / t-RANGE [LOC]
DDM Y / t-RANGE [GS]
AF-INPUT-SOURCE
XY value scaling in localizer mode at
DSP-OUT (refer to page 10 DSP output)
RNG.1 to RNG.4
RNG.1 to RNG.4
XY value scaling in glideslope mode at
DSP-OUT (refer to page 10)
AF selection for valuation
INT = internal AF
EXT = external AF
via AF-EXT-input
STARTUP mode
SQUELCH
startup mode setting at switching on the
unit
VOR
ILS
(VOR mode)
(ILS mode)
BCN
SPEC
LEVEL
(Beacon mode)
(Spectrum mode)
(∆ level mode)
ON / OFF
on/off switching squelch
setting valid for:
-
-
-
∆ level mode
ILS mode
VOR mode
When the setting is "ON" an automatical quiet tuning is performed as soon
as the threshold level < the receiver level is.
When setting is "OFF" no quiet tuning will be performed.
DISPLAY ILLUM
OFF ⇐ 1 to 6 Þ MAX
display brightness setting
DDM/SDM DIMENSIONS
value of DDM/SDM indication
µA / % / 1
(1= value without dimension)
DISPLAY-INTERVALL
indication interval time
1 to 8
setting is only valid for display indi-
cation.
1
to
8
approx. 0.4 s to approx. 1.8 s
TUNING-STEP
0796.1800.02
tuning step rate setting
5 / 25 / 50 / 100 (kHz)
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Operating instructions of SETUP-Mode
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
ILS-Mode
Operating instructions of ILS-Mode
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Operating instructions of Y /t setup menu
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Operating instructions of STORE DDM menu
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
0796.1800.02
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Signal parameters on ILS display
Following signal parameters are indicated on the display:
display indication
description
measuring value
FREQ. (MHZ)
receiver frequency in MHz (numerical) and
bargraph center frequency indication in kHz
MHz
LEVEL (dBm)
receiver signal in dBm (numerical) and
bargraph indication (the lower bargraph
shows the set squelch threshold)
dBm
DISPL 1/2 AM-MOD.(90HZ)
AM-MOD.(150HZ)
DDM
AM modulation depth (90 Hz)
AM modulation depth (150 Hz)
differences in depth of modulation
%
%
DDM-value
(non-dimension value)
µA
%
SDM
total modulation factor
SDM-value
(non-dimension value)
µA
%
PHI (90/150)
DISPL 2/2 ID AF-FREQ.
ID AM-MOD.
phase shift (90 Hz/150 Hz)
degree
Hz
AF frequency (1020 Hz)
AM modulation depth of AF frequency
%
VOICE AM-MOD.
AM modulation depth in the range of
300 to 3000 Hz
%
Y / t Setup Range 1 to 4
XY value scaling in localizer /
%
glideslope mode at DSP-Out.
STORE
Locations 1 to 120
DDM/SDM results
DDM menu
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
VOR-Mode
Operating instructions of VOR-Mode
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Signal parameters on VOR display
Following signal parameters are indicated on the display:
display indication
description
measuring value
receiver frequency in MHz (numerical) and
bargraph center frequency indication in kHz
FREQ. (MHZ)
MHz
receiver signal in dBm (numerical) and
bargraph indication (the lower bargraph
shows the set squelch threshold)
LEVEL (dBm)
dBm
BEARING angle
DISPL 1/2 BEARING
DEG
%
AM modulation depth (30 Hz)
AM modulation depth (9960 Hz)
frequency deviation
AM-MOD.(30HZ)
AM-MOD.(9960HZ)
FM-DEVIATION
FM-INDEX
%
Hz
FM index value
index value
(non-dimension value)
AF frequency (1020 Hz)
DISPL 2/2 ID AF-FREQ.
Hz
%
AM modulation depth of AF frequency
ID AM-MOD.
AM modulation depth in the range of
300 to 3000 Hz
VOICE AM-MOD.
%
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
BEACON-Mode
Operating instructions of BEACON-Mode
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Signal parameters on BEACON display
Following signal parameters are indicated on the display:
display indication
description
measuring value
receiver frequency in MHz (numerical) and
bargraph center frequency indication in kHz
FREQ. (MHZ)
MHz
receiver signal in dBm (numerical) and
bargraph indication (the lower bargraph
shows the set squelch threshold)
LEVEL (dBm)
dBm
AF frequency and AM modulation depth at
3000 Hz (inner marker)
F1
F2
F3
ID
Hz and %
Hz and %
Hz and %
Hz and %
AF frequency and AM modulation depth at
1300 Hz (middle marker)
AF frequency and AM modulation depth at
400 Hz (outer marker)
AF frequency and AM modulation depth of
the identifier
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
∆ Level-Mode
Operating instructions of ∆ Level-Mode
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Storing and recalling reference levels
To occupy storage capacaty or to call up memory the ∆ level mode has a storage menu which will be
called up by pushing the softkey "MEM".
Until four memory blocks M1 to M4 can be stored or called up. Following data will be allocated to a
storage space:
-
-
actual reference level,
actual receiver frequency.
After storing or recalling of a memory the ∆ level main window is updated with the relevant memory
data. When the receiving level changes the update ∆ level is permanently indicated in ∆ level window.
Storage menu explanation:
See next page for the operation diagram for "Storing Reference Levels" and
"Recalling Single Memory".
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
0796.1800.02
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Signal parameters on ∆ Level Display
Following signal parameters are indicated on the display::
display indication
description
measuring value
receiver frequency in MHz (numerical) and
bargraph center frequency indication in kHz
FREQ. (MHZ)
MHz
receiver signal in dBm (numerical) and
bargraph indication (the lower bargraph
shows the set squelch threshold)
LEVEL (dBm)
dBm
dB
∆ LEVEL (dB)
actual ∆ level (difference between actual
receiving level and set reference level)
the bargraph indication shows the ∆ level
as a tendency indication
set reference level
LEVEL REF.
dBm
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Spectrum-Mode
Operating instructions of Spectrum-Mode
The spectrum analysis of the VOR/ILS Analyzer EVS200 is
only for trend indication in the scanned range.
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
RS-232-Interface operation
All important unit functions can be remote controlled via the RS-232-Interface (V24 standard) by a PC
terminal which can be operated with commercial terminal programs (e.g. Telix, Procomm...). AS a data
terminal (DDE) the VOR/ILS Analyzer EVS200 must be connected with a RS-232-1:1-Interface. Also
it is possible to control the unit with an user defined program. The necessary commands for that pur-
pose are described below.
COM-Parameter
The com parameters parity, number of data bits, and stop bits cannot be changed and are defined as
"firmware“.
ꢀ non parity bit
ꢀ 8 data bits
ꢀ 1 stop bit
(N),
(8),
(1).
Handshake
Hardware handshake is renounced.
Handshake is performed by software as a transmitted sequence e.g. "READY“ or as a measuring
value or a tuning value e.g. "RF107000“.
Control commands
There are two categories of control commands.
ꢀ
super commands (mode independant, unit related)
ꢀ
mode dependant commands (specified mode must first be selected)
The following table makes clear the control commands structure.
unit related
mode dependant control commands
control commands
ILS-Mode
VOR-Mode
BEACON-
Mode
∆ Level-Mode
BI
EC0
EC1
LA
LO
MB
MI
ML
AF8
AM2
AM3
AM8
AM9
BW0
BW1
D1
AF8
AM0
AM1
AM8
AM9
BE
BW0
BW1
LR
LD
SR
AF4
AF5
AF6
AF7
AM4
AM5
AM6
AM7
D1
D2
MV
D2
FA0
FA2
FA3
FM0
FM1
RES
RF(Freq. kHz)
RF
DD0
DD1
FA0
FA1
FA2
FA3
PH
TEST
VER
SD0
SD1
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Unit related control commands
Command RF (frequency in kHz)
command
function
RF (frequency in kHz) <frequency information> setting or scanning receiving frequency
With the command RF (frequency in kHz) a frequency input is possible in the ranges of 107000 to
119000 kHz and 319000 to 341000 kHz. With this command it is also possible to scan the tuned
frequency when the command RF is transmitted to the EVS200 without additionally parameters. The
unit responses with the frequency information.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
RF107000 <CR>
rf107000 <CR>
READY <CR/LF>
READY <CR/LF>
input:
query:
RF<CR>
rf<CR>
107000kHz <CR/LF>
107000kHz <CR/LF>
Command LO
command
function
LO
<Local>
set unit local mode
Because local operation is automatically locked when the unit is controlled by a controller, the com-
mand LO (local) performs further local operation at the unit.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
LO<CR>
lo<CR>
READY <CR/LF>
READY <CR/LF>
input:
Command EC0
command
function
EC0
<echo off >
selection of communication
EVS200 does not retransmit the received control string.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
EC0 <CR>
ec0 <CR>
READY <CR/LF>
READY <CR/LF>
query:
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command EC1
command
function
EC1
<echo on >
selection of communication
EVS200 retransmits the received control string.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
EC1 <CR>
ec1 <CR>
READY <CR/LF>
READY <CR/LF>
query:
Command test
command
function
TEST < >
RS232 test section output
The command TEST initiates a RS232 test section. All ASCII characters 20h to FF will be supplied.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
EC1 <CR>
ec1 <CR>
READY <CR/LF>
READY <CR/LF>
query:
Command LA
command
function
LA
<Level Absolute>
query of receiving level
The command LA reads the actual receiving signal level in "∆ Level"-mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
LA <CR>
la <CR>
e.g.
e.g.
-48.1dBm <CR/LF>
-48.1dBm <CR/LF>
query:
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command RES
command
function
RES
<RESET>
Master-RESET
With the command RES a unit master reset is possible. It works like a restart of the unit.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
RES<CR>
res<CR>
READY <CR/LF>
READY <CR/LF>
input:
EVS200 REMOTE-SYSTEM READY <CR/LF>
Command BI
command
function
BI
<BITE-test information>
BITE (Build In Test) -asking for result
The EVS200 performs approx. every 500 ms a self test (BITE) and makes the result available as a
9bit binary form. During this test the following voltages and funtionally subunits of the units are
checked.
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
all operating voltages,
hostprocessor
memory,
DSP-processor,
battery capacity (%)
explanation of BITE information
B8 B7 B6
SYNTH 1 SYNTH 2 EXT-DC
B5
PS-DC
X
B4
B3
B2
Batt2
X
B1
Batt1
X
B0
Batt0
X
+12 VDC -12 VDC
X
X
X
X
X
X = 1 is function in tolerance (ok)
X = 0 is function out of tolerance (failure)
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
BI <CR>
BI110111101 <CR/LF>
query:
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command VER
command
function
VER
<Version>
query of version number and date of the
EVS200 firmware
The command VER initializes the display of the software version number and its issue date.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
VER <CR>
ver <CR>
query:
EVS200 - VERSION < No. > from < Date >
Copyright (C) Rohde & Schwarz Werk Köln
<CR/LF>
Command ML
command
function
ML
<Mode-Delta Level>
∆ level mode setting
The command ML enables a switching over to the "∆ level" mode.
Exampel:
command from the controller
response of the VOR/ILS Analyzer EVS200
ML <CR>
ml <CR>
READY <CR/LF>
READY <CR/LF>
input:
Command MV
command
function
MV
<Mode-VOR>
VOR mode setting
The command MV enables a switching over to the "VOR“ mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
MV <CR>
mv <CR>
READY <CR/LF>
READY <CR/LF>
input:
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command MI
command
function
MI
<Mode-ILS>
ILS mode setting
The command MI enables the switching over to the "ILS“ mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
MI <CR>
mi <CR>
READY <CR/LF>
READY <CR/LF>
input:
Command MB
command
function
MB
<Mode-BEACON>
BEACON mode setting
The command MB enables the switching over to the "BEACON mode“.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
MB <CR>
mb <CR>
READY <CR/LF>
READY <CR/LF>
input:
Mode related control commands
ILS-Mode
Command DD0
command
function
DD0
<DDM information>
DDM value query
The command DD0 reads the actual DDM value (value without dimension) in the ILS mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
DD0 <CR>
dd0 <CR>
e.g.
e.g.
0.2008 <CR/LF>
0.2008 <CR/LF>
query:
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command DD1
command
function
DD1
<DDM information>
query of the DDM value in µA
The command DD1 reads the actual DDM value in µA in the ILS mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
DD1 <CR>
dd1 <CR>
e.g.
e.g.
194.32uA <CR/LF>
194.32uA <CR/LF>
query:
Command SD0
command
function
SD0
<SDM information>
SDM value query
The command SD0 reads the actual SDM value (value without dimension) in the ILS mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
SD0 <CR>
sd0 <CR>
e.g.
e.g.
0.8006 <CR/LF>
0.8006 <CR/LF>
query:
Command SD1
Command
function
SD1
<SDM information>
query of SDM value in µA
The command SD1 reads the actual DDM value in µA in the ILS mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
SD1 <CR>
sd1 <CR>
e.g.
e.g.
774.87uA <CR/LF>
774.87uA <CR/LF>
query:
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command AM2
command
function
AM2 <AM modulation depth (90 Hz)>
query of AM modulation depth (90 Hz)
The command AM2 reads the actual AM modulation depth (90 Hz) in the ILS mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AM2 <CR>
am2 <CR>
e.g.
e.g.
50% <CR/LF>
50% <CR/LF>
query:
Command AM3
command
function
AM3 <AM modulation depth (150 Hz)>
query of AM modulation depth (150 Hz)
The command AM3 reads the actual AM modulation depth (150 Hz) in the ILS mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AM3 <CR>
am3 <CR>
e.g.
e.g.
29.9% <CR/LF>
29.9% <CR/LF>
Query:
Command PH
command
function
PH
<Phase 90/150 Hz>
query of Phase angle 90/150 Hz
The command PH reads the actual PHI value between 90 Hz and 150 Hz in the ILS mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
PH <CR>
ph <CR>
e.g.
e.g.
119.9DEG <CR/LF>
119.9DEG <CR/LF>
query:
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command BW0
command
function
BW0 <bandwidth information >
8-kHz bandwidth setting
The command BW0 enables the switching over to the 8-kHz bandwidth in the ILS mode and in the
"∆ level" mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
BW0 <CR>
bw0 <CR>
READY <CR/LF>
READY <CR/LF>
input:
Command BW1
command
function
BW1 <bandwidth information>
30-kHz bandwidth setting
The command BW1 enables the switching over to the 30-kHz-IF bandwidth in the ILS mode and in
the "∆ level" mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
BW1 <CR>
bw1 <CR>
READY <CR/LF>
READY <CR/LF>
input:
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command FA1
command
function
FA1
<Fast DDM measuring on>
Activating the Fast DDM measurement
The command FA1 switches on the fast DDM measurement. The measuring, used only for landing
path measurement can only be activated through a controller. The output is performed as DDM value
with RF level (see example) and can be processed accordingly with calculation programs e.g. like
Excel etc. A capacaty of 34 measurements /s at a baud rate set to 19200 baud will be reached. This
conforms to a time interval of 30 ms. The measurement values (DDM, RF level) can be read in and
output as a text file corresponding to the terminal program.
To reach 34 meas/s the baud rate must be set to 19200 baud in the Setup of the
VOR/ILS Analyzer EVS200. It must be attended the acceptance of the data transfering
rate by the terminal program.
ꢀ
The measurement can be stopped through the command FA0 (refer to Command
FA0).
Example:
input:
command from the controller
response of the VOR/ILS Analyzer EVS200
FA1 <CR>
fa1 <CR>
0.2008 -48.2 <CR/LF>
0.2008 -48.2 <CR/LF>
With the command FA1 the echo
mode is automatically switched
OFF.
Both values are separated through a tabulator
ASCII 9.
1/90Hz = 11.1msec.
DSP-Analysis
N
N+1
N+2
N+3
N+4
N+5
N+6
N+7
N+8
N+9
N+10
DATA-
Transfer
RS232- DATA-
Transfer Transfer
RS232- DATA-
Transfer Transfer
RS232- DATA-
Transfer Transfer
DDM, RF-Level
Calculation
DDM, RF-Level
Calculation
DDM, RF-Level
Calculation
TXD-Signal
fromEVS200
N
N+2
N+5
30 msec.
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command FA2
command
function
FA2
<Fast DDM measuring on>
Activating the Fast DDM measurement
The command FA2 switches on the fast DDM measurement. The measuring, used only for landing
path measurement can only be activated through a controller.
The command FA2 performs the continuous measurement and output of the DDM, RF level, Mod-
factor 90 Hz and Modfactor 150 Hz with a transmission speed of about 20 measurement value sets
(DDM, RF level, AM90, AM150) per second. This conforms to a time interval of 50 ms. The stated
RS-232-transmission times are related to 19.200 Baud.
The measurement values can be read in and output as a text file corresponding to the terminal pro-
gram.
To reach 20 meas/s the baud rate must be set to 19200 baud in the Setup of the
VOR/ILS Analyzer EVS200. It must be attended the acceptance of the data transfering
rate by the terminal program.
ꢀ
The measurement can be stopped through the command FA0 (refer to Command
FA0).
Example:
input:
command from the controller
response of the VOR/ILS Analyzer EVS200
FA2 <CR>
fa2 <CR>
output form: (DDM <CR >, RF level <CR >,
AM90 <CR >, AM 150 <CR >)
With the command FA2 the echo
mode is automatically switched
OFF.
DDM:
four-digit with indication (dimensionless)
example: -1000 <CR > (-0.1000 DDM)
five-digit with indication (µA)
example: -09890 <CR > (-98.90 µA )
RF level:
three-digit with indication (dBm)
example: -400 <CR > (-40.0dBm)
122 <CR > (12.2dBm)
Modulation depth:
three-digit (%)
example: 202 <CR > (20.2 %)
004 <CR > (0.4 %)
1/90Hz = 11.1msec.
DSP-Analysis
N
N+1
N+2
N+3
N+4
N+5
N+6
N+7
N+8
N+9
N+10
DDM, AM90, AM150,
RF-Level - Calculation
RS232-
Transfer
DDM, AM90, AM150,
RF-Level - Calculation
RS232-
Transfer
DATA-Transfer
DATA-Transfer
DATA-T
TXD-Signal
fromEVS200
N
N+4
40 msec.
10 msec.
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command FA3
command
function
FA3
<Fast DDM measuring on>
Activating the Fast DDM measurement
The command FA3 switches on the fast DDM measurement. The measuring, used only for landing
path measurement can only be activated through a controller. The command FA3 performs the con-
tinuous measurement and output of the DDM, RF level, Modfactor 90 Hz and Modfactor 150 Hz.
The 50-ms measurement interval consists of DSP analysis, DSP data transmission to the host
processor and conversion of the DSP raw measurement value into DDM, dBm and AM %. The
measurement values output is performed in this mode as interrupt operation via RS232 interface.
In this Fast-Mode (FA3) a measurement value set will only be transmitted to the PC if it is demanded
by a short command (1 ASCII-Character). The response from the EVS200 is performed without a
longer delay within about 15 to 20 ms between measurement value demand and measurement
value transmission. The stated RS-232-transmission times are related to 19.200 Baud.
The measurement values can be read in and output as a text file corresponding to the terminal pro-
gram.
The baud rate must be set to 19200 baud in the Setup of the VOR/ILS Analyzer
EVS200. It must be attended the acceptance of the data transfering rate by the
terminal program.
ꢀ
The measurement can be stopped through the command FA0 (refer to Command
FA0) or <CR>.
Example:
input:
command from the controller
response of the VOR/ILS Analyzer EVS200
e.g. A
output form: (DDM <CR >, RF level <CR >,
AM90 <CR >, AM 150 <CR >)
ꢀ
Demand for measurement
values output:
output form as FA2
all ASCII characters without:
CR (0Dh), LF (0Ah), # (23h), @ (40h)
example:
-0001 <CR > (DDM),
-412 <CR > (RF level),
201 <CR > (AM90),
202 <CR > (AM150),
With the command FA3 the echo
mode is automatically switched
OFF.
1/90Hz = 11.1msec.
DSP-Analysis
N
N+1
N+2
N+3
N+4
N+5
N+6
N+7
N+8
N+9
N+10
Programm-Interrupt
DDM, AM90, AM150,
RF-Level - Calculation
DDM, AM90, AM150,
RF-Level - Calcuulation
DATA-Transfer
DATA-Transfer
DATA-T
RS232-
Transfer
15...20 msec.
Request from PCl
to EVS200 (RXD)
Answer to PCl
from EVS200 (TXD
N
10 msec.
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command FA0
command
function
FA0
<fast DDM measuring off>
deactivating the fast DDM measurement
The command FA0 switches off the fast DDM measurement.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
FA0 <CR>
fa0 <CR>
READY <CR/LF>
READY <CR/LF>
input:
Command D1
command
function
D1
<display information>
switch over to display1
The command D1 enables the switching over to the content of display1 in the VOR / ILS mode.
This is prediction for reading out the data of the corresponding mode (VOR/ILS).
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
D1 <CR>
d1 <CR>
READY <CR/LF>
READY <CR/LF>
input:
Command D2
command
function
D2
<display information>
switch over to display2
The command D2 enables the switching over to the content of display2 in the VOR / ILS mode.
This is prediction for reading out the data of the corresponding mode (VOR/ILS).
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
D2 <CR>
d2 <CR>
READY <CR/LF>
READY <CR/LF>
input:
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command AF8
command
function
AF8
<AF-frequency ID>
AF-frequency ID query
The command AF8 reads the actual AF frequency (ID) in the ILS /VOR mode.
Prediction for reading out the data of the corresponding mode (VOR/ILS) is the
switching over to display2.
Example:
query:
command from the controller
response of the VOR/ILS Analyzer EVS200
AF8 <CR>
af8 <CR>
e.g.
1020.0Hz <CR/LF>
1020.0Hz <CR/LF>
e.g..
Command AM8
command
function
AM8 <AM-modulation depth (ID)>
query of AM-modulation depth (ID)
The command AM8 reads the actual AM-modulation depth (ID) in the ILS / VOR mode.
Prediction for reading out the data of the corresponding mode (VOR/ILS) is the
switching over to display2.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AM8 <CR>
am8 <CR>
e.g.
e.g.
10.0% <CR/LF>
10.0% <CR/LF>
query:
Command AM9
command
function
AM9 <AM-modulation depth (voice)>
query of AM-modulation depth (voice)
The command AM9 reads the actual AM-modulation depth (voice 300 Hz to 3kHz) in the ILS / VOR
mode.
Prediction for reading out the data of the corresponding mode (VOR/ILS) is the
switching over to display2.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AM9 <CR>
am9 <CR>
e.g.
e.g.
09.6% <CR/LF>
09.6% <CR/LF>
query:
0796.1800.02
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
VOR-Mode
Command BE
command
funcion
BE
<Bearing Angle>
bearing angle query
The command BE reads the actual bearing angle (indicated in degree) in the VOR mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
BE <CR>
be <CR>
e.g.
e.g.
299.97DEG <CR/LF>
299.97DEG <CR/LF>
query:
Command AM0
command
function
AM0 <AM-modulation depth (30 Hz)>
query of AM-modulation depth (30 Hz)
The command AM0 reads the actual AM-modulation depth (30 Hz) in the VOR mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AM0 <CR>
am0 <CR>
e.g.
e.g.
30.1% <CR/LF>
30.1% <CR/LF>
query:
Command AM1
command
function
AM1 <AM-modulation depth (9960 Hz)>
query of AM-modulation depth (9960 Hz)
The command AM1 reads the actual AM-modulation depth (9960 Hz) in the VOR mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AM1 <CR>
am1 <CR>
e.g.
e.g.
30.1% <CR/LF>
30.1% <CR/LF>
query:
0796.1800.02
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command FM0
command
function
FM0
<FM-deviation)>
FM-deviation query
The command FM0 reads the actual FM-deviation value in the VOR mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
FM0 <CR>
fm0 <CR>
e.g.
e.g.
479.1Hz <CR/LF>
479.1Hz <CR/LF>
query:
Command FM1
command
function
FM1
<FM-Index)>
query of FM-index value
The command FM1 reads the actual FM-index value in the VOR mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
FM1 <CR>
fm1 <CR>
e.g.
e.g.
15.9 <CR/LF>
15.9 <CR/LF>
query:
Command D1
command
function
D1
<Display-information>
switching over to Display1
The command D1 enables the switching over to the content of display1 in the VOR / ILS mode.
This is the prediction for reading out the data of the corresponding mode (VOR/ILS).
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
D1 <CR>
d1 <CR>
READY <CR/LF>
READY <CR/LF>
input:
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command D2
command
function
D2
<Display-information>
switching over to Display2
The command D2 enables the switching over to the content of display2 in the VOR / ILS mode.
This is the prediction for reading out the data of the corresponding mode (VOR/ILS).
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
D2 <CR>
d2 <CR>
READY <CR/LF>
READY <CR/LF>
input:
Command AF8
command
function
AF8
<AF-frequency ID>
AF-frequency ID query
The command AM8 reads the actual AF frequency (ID) in the ILS / VOR mode.
Prediction for reading out the data of the corresponding mode (VOR/ILS) is the
switching over to display2.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AF8 <CR>
af8 <CR>
e.g.
e.g.
1020.0Hz <CR/LF>
1020.0Hz <CR/LF>
query:
Command AM8
command
function
AM8 <AM-modulation depth (ID)>
query of AM-modulation depth (ID)
The command AM8 reads the actual AM-modulation depth (ID) in the ILS / VOR mode.
Prediction for reading out the data of the corresponding mode (VOR/ILS) is the
switching over to display2.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AM8 <CR>
am8 <CR>
e.g.
e.g.
10.0% <CR/LF>
10.0% <CR/LF>
query:
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command AM9
command
function
AM9 <AM-modulation depth (voice)>
query AM-modulation depth (voice)
The command AM9 reads the actual AM-modulation depth (voice 300 Hz to 3 kHz) in the ILS / VOR
mode.
Prediction for reading out the data of the corresponding mode (VOR/ILS) is the
switching over to display2.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AM9 <CR>
am9 <CR>
e.g.
e.g.
09.6% <CR/LF>
09.6% <CR/LF>
query:
Command FA2
command
function
FA2
<Fast measuring on>
Activating the Fast measurement mode
The command FA2 switches on the fast measurement mode. The command FA2 performs the con-
tinuous measurement and output of the RF level, Bearing, AM30, AM9960, FM-deviation, FM-
Index with transmission speed of 15 measurement value sets (RF level, Bearing, AM30, AM9960,
FM-deviation, FM-Index) per second. This conforms to a time interval of 66 ms. The stated RS-232-
transmission times are related to 19.200 Baud.
The measurement values can be read in and output as a text file corresponding to the terminal pro-
gram.
The baud rate must be set to 19200 baud in the Setup of the VOR/ILS Analyzer EVS200.
It must be attended the acceptance of the data transfering rate by the terminal pro-
gram.
ꢀ
The measurement can be stopped through the command FA0 (refer to Command FA0).
Example:
input:
command from the controller
response of the VOR/ILS Analyzer EVS200
FA2 <CR>
fa2 <CR>
With the command FA2 the echo
mode is automatically switched
OFF.
output form: (RF level <CR >, Bearing <CR >,
AM30 <CR >, AM 9960 <CR >),
FM-deviation<CR >,
FM-Index <CR >),
RF level:
three-digit with indication (dBm)
example: -400 <CR > (-40.0dBm)
122 <CR > (12.2dBm)
Modulation depth:
three-digit (%)
example: 304 <CR > (30.4 %)
004 <CR > (0.4 %)
FM-deviation:
four-digit (Hz)
example: 4800<CR > (480,0Hz)
0004 <CR > (0.4 Hz)
FM-Index:
three-digit
example: 160<CR > (16,0)
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command FA3
command
function
FA3
<Fast measuring on>
Activating the Fast measurement mode
The command FA3 switches on the fast measurement mode. The command FA3 performs the con-
tinuous measurement and output of the RF level, Bearing, AM30, AM9960, FM-deviation, FM-
Index. The 33 to 66-ms measurement interval consists of DSP analysis, DSP data transmission to
the host processor and conversion of the DSP raw measurement value into dBm, Bearing °, AM %
and FM Hz . The measurement values output is performed in this mode as interrupt operation via
RS232 interface.
In this Fast-Mode (FA3) a measurement value set will only be transmitted to the PC if it is demanded
by a short command (1 ASCII-Character). The response from the EVS200 is performed without a
longer delay within about 15 to 20 ms between measurement value demand and measurement
value transmission. The stated RS-232-transmission times are related to 19.200 Baud.
The measurement values can be read in and output as a text file corresponding to the terminal pro-
gram.
The baud rate must be set to 19200 baud in the Setup of the VOR/ILS Analyzer EVS200.
It must be attended the acceptance of the data transfering rate by the terminal pro-
gram.
ꢀ
The measurement can be stopped through the command FA0 (refer to Command FA0)
or <CR >.
Example:
input:
command from the controller
response of the VOR/ILS Analyzer EVS200
e.g. A
output form: (RF level <CR >, Bearing <CR >,
AM30 <CR >, AM 9960 <CR >),
FM-deviation<CR >,
ꢀ
Demand for measurement
values output:
FM-Index <CR >),
all ASCII characters without:
CR (0Dh), LF (0Ah), # (23h), @ (40h)
output form as FA2
With the command FA3 the echo
mode is automatically switched
OFF.
example:
-412 <CR > (RF level),
35506 <CR > (Bearing),
304 <CR > (AM30),
302 <CR > (AM9960),
4800 <CR > (FM-deviation),
160 <CR > (FM-Index),
Command FA0
command
function
FA0
<fast DDM measuring off>
deactivating the fast DDM measurement
The command FA0 switches off the fast DDM measurement.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
FA0 <CR>
fa0 <CR>
READY <CR/LF>
READY <CR/LF>
input:
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
∆ Level-Mode
Command SR
command
function
SR
<Set REF>
reference level setting
The command SR is for setting the actual receiver level as a reference level in the reference level
window "∆ level"-mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
SR <CR>
sr <CR>
READY <CR/LF>
READY <CR/LF>
input:
Command LR
command
function
LR
<level reference>
reference level query
The command LR reads the actual set reference level in the "∆ Level" mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
LR <CR>
lr <CR>
e.g.
e.g.
-48.1dBm <CR/LF>
-48.1dBm <CR/LF>
query:
Command LD
command
function
LR
<level delta>
∆-Level query
The command LD reads the actual ∆-Level in the "∆ Level" mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
LD <CR>
ld <CR>
e.g.
e.g.
-000.0dBm <CR/LF>
-000.0dBm <CR/LF>
query:
0796.1800.02
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Beacon-Mode
Command AM4
command
function
AM4 <AM-modulation depth (F1-range)>
query of AM-modulation depth (F1)
The command AM4 reads the actual AM-modulation depth (F1 3000 Hz) in the BEACON mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AM4 <CR>
am4 <CR>
e.g.
e.g.
29.3% <CR/LF>
29.3% <CR/LF>
query:
Command AM5
command
function
AM5 <AM-modulation depth (F2-range)>
query of AM-modulation depth (F2)
The command AM5 reads the actual AM-modulation depth (F2 1300 Hz) in the BEACON mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AM5 <CR>
am5 <CR>
e.g.
e.g.
30.5% <CR/LF>
30.5% <CR/LF>
query:
Command AM6
command
function
AM6 <AM-modulation depth (F3-range)>
query of AM-modulation depth (F3)
The command AM6 reads the actual AM-modulation depth (F3 400 Hz) in the BEACON mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AM6 <CR>
am6 <CR>
e.g.
e.g.
29.8% <CR/LF>
29.8% <CR/LF>
query:
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command AM7
Kommando
Funktion
AM6 <AM-modulation depth ID>
query of AM-modulation depth ID
The command AM7 reads the actual AM-modulation depth (ID) in the BEACON mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AM7 <CR>
am7 <CR>
e.g.
e.g.
10.2% <CR/LF>
10.2% <CR/LF>
query:
Command AF4
command
function
AF4
<AF-frequency range F1>
query of AF-frequency 3000 Hz
The command AF4 reads the actual AF frequency (F1) in the BEACON mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AF4 <CR>
af4 <CR>
e.g.
e.g.
3000.0Hz <CR/LF>
3000.0Hz <CR/LF>
query:
Command AF5
command
function
AF5
<AF-frequency range F2>
query of AF-frequency 1300 Hz
The command AF5 reads the actual AF frequency (F2) in the BEACON mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AF5 <CR>
af5 <CR>
e.g.
e.g.
1300.0Hz <CR/LF>
1300.0Hz <CR/LF>
query:
0796.1800.02
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VOR/ILS Analyzer EVS200
Chapter 3: Operation
Command AF6
command
function
AF6
<AF-frequency range F3>
query of AF-frequency 400 Hz
The command AF6 reads the actual AM frequency (F3) in the BEACON mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AF6 <CR>
af6 <CR>
e.g.
e.g.
400.0Hz <CR/LF>
400.0Hz <CR/LF>
query:
Command AF7
command
Funktion
AF7
<AF-Frequenz ID>
query of AF-frequency ID
The command AF7 reads the actual AF frequency (ID) in the BEACON mode.
Example:
command from the controller
response of the VOR/ILS Analyzer EVS200
AF7 <CR>
af7 <CR>
e.g.
e.g.
1020.0Hz <CR/LF>
1020.0Hz <CR/LF>
query:
0796.1800.02
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VOR/ILS Analyzer EVS200
Interfaces
Chapter 4: Interfaces
Antenna input
labeling
figure
description
RF INPUT 50 Ω
input level:
0 dBm / 50 Ω
max. +15 dBm
(Data safety up to 10 dBm is ensured)
frequency range:
VSWR:
74 to 341 MHz
<1.5
AF output
labeling
figure
description
AF OUT 50 Ω
output level:
200 mVrms / 50 Ω
frequency range:
0.3 to 3.4 kHz
Headphone connection
labeling
figure
description
Only for connecting headphones
with soundproofing.
PHONES
e.g. R&S order no. 0708.9010.00
XY-Tracer connection
labeling
figure
description
DSP-OUT
The scaling of the XY values can be set in
the setup / Ils mode (Y / t setup) for the
localizer and glideslope mode.
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VOR/ILS Analyzer EVS200
Chapter 4: Interfaces
External AF input
labeling
figure
description
AF EXT.
input level:
1 to 2 Vrms / 50 Ω
frequency range:
30 Hz to 10 kHz
RS-232-Interface
labeling
figure
description
standard RS-232-Interface
RS232/DDE
COM parameter:
baud rate:
N81
1200, 2400,
4800, 9600,
19200 adjustable in
the setup
External VDC connection
labeling
figure
description
DC connection:
tolerance max.
12 VDC / 30 W
9 to 15 VDC
INPUT: 9-15 VDC
Mains connection
labeling
figure
description
INPUT: 85-250 V/
47-63Hz
mains connection:
87 to 265 VAC
47 to 63 Hz
F1/F2: IEC127-
T800H/250V
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VOR/ILS Analyzer EVS200
Chapter 5: Service
Service
To ensure a unit’s repair as quick as possible a defect VOR/ILS Analyzer EVS200
must be send to the service place named in the following.
In case of service questions
please contact us over phone
or FAX.
(49) / 2203 / 49-266
ꢀ
(49) / 2203 / 49-336
Warranty
Warranty conditions are stated in the general terms of business.
Whilst time of warranty a defective internal battery
(option) may only be changed by Rohde & Schwarz
service personnel!
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VOR/ILS Analyzer EVS200
Chapter 6: Technical Specification
Technical data
Receiver section
Frequency range
................................ 74.7 to 75.3 MHz
107 to 119 MHz
319 to 341 MHz
Accuracy
Resolution
Input voltage
................................ ≤2 ppm
................................ 5 kHz
................................ 15 dBm max./ 50 Ω
(data safety up to 10 dBm is ensured)
VSWR
................................ <1.5
Sensitivity
IF bandwidth
................................ -96 dBm ≥18 dB (IF bandwidth 8 kHz)
................................ min. ±15 kHz (-3 dB), max. ±40 kHz (-60dB)
min. ±4 kHz (-3 dB), max. ±12 kHz (-60dB)
or optional:
min. ±19 kHz (-6 dB), max. ±38 kHz (-60dB)
min. ±8 kHz (-6 dB), max. ±20 kHz (-60dB)
Demodulation
RF-Input
................................ AM
................................ BNC
Absolute-level receiver
Display range
................................ -96 to +10 dBm
Accuracy
................................ < ±2 dB
Difference-level receiver
Bargraph (quasi analog)...................... ±12 dB to reference level
Resolution
................................ 0.1 dB
Accuracy indication ............................. ≤±1 dB
ILS signal analysis
The given values are valid only for the 30 kHz- or 38 kHz- IF-filter
RF level
Frequency range
................................ -70 to -30 dBm
................................ 108 to 118 MHz
................................ 328 to 336 MHz
Modulation depth (10 to 80 %)
90 / 150 Hz ±2% ................................ accuracy 0.5%
300 Hz to 4 kHz (identifier).................. ≤1.2% of reading
Phase angle 90/150 Hz
Measurement range............................ ±60°
Measurement error.............................. ≤0.2°
Resolution
................................ 0.1°
DDM measurement
Localizer mode
Measurement error at
15 to 25% modulation.......................... ≤±0.0004 DDM
±0.1% of reading
10 to 30% modulation.......................... ≤±0.0004 DDM
±0.2% of reading
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VOR/ILS Analyzer EVS200
Chapter 6: Technical Specification
Glideslope mode
Measurement error at
30 to 50% modulation.......................... ≤±0.0008 DDM
±0.1% of reading
Resolution (LOC / GS) ........................ 0.0001 DDM
DSP out
Localizer: Range 1 .......................... 0.0 ±25%
0 ±0.25 DDM
0.0 ±2.5%
0 ±0.025 DDM
Range 3 .......................... 0.0 ±2.58%
0.0 ±0.0258 DDM
Range 4 .......................... 0.0 ±50%
0.0 ±0.5 DDM
Range 2
Glideslope: Range 1 .......................... 0.0 ±50%
0.0 ±0.5 DDM
Range 2 .......................... 0.0 ±5%
0.0 ±0.05 DDM
Range 3 .......................... 8.75 ±5%
0.0875 ±0.05 DDM
Range 4 .......................... 17.5 +5%
0.175 +0.05 DDM
SDM measurement
SDM 10 to 80% ................................ accuracy 1% absolute
Resolution
................................ 0.0001 SDM
VOR signal analysis
Bearing
Accuracy
Resolution
........................................±0.1°
........................................0.05° / 0.01° (Setup)
AM modulation depth
30 Hz and 9,96 kHz
Accuracy
Resolution
........................................≤1%
........................................0.1%
FM deviation
Accuracy
........................................0.5%, ±0.1 Hz
........................................0.1 Hz
Resolution
RS-232-Interface
........................................8N1, adjustable baud rate
1200, 2400, 4800, 9600, 19200
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VOR/ILS Analyzer EVS200
General data
Chapter 6: Technical Specification
Power supply
................................ 100 to 240 VAC
(with build-in charger)............................... 50 to 60 Hz (440 Hz option)
9 to 15 VDC (typ. 12 VDC 1.4 A)
120 VA max.
built-in battery (option).............................. 12V / 3.2 Ah
charging while mains is connected
Operating time
................................ >100 min (max. brightness)
>150 min (at average brightness)
Mechanical resistance.............................. shock-tested to MIL-810D
vibration-tested to
DIN-IEC 68-2-36 & 68-2-6
EMC
RF Emissions
................................ complies with EN 50081-1
RF Immissions ................................ complies with EN 50082-1
Temperature range
Operating temp. range ........................ -5°C to +45°C
Storage temp. range ........................... -20°C to +60°C
Dimensions and Weight
Dimensions (WxHxD).......................... 219 x 147 x 350 mm
Weight
................................ 4.9 kg (without battery)
6.5 kg (with battery)
Order notification
Order-No. EVS200 .............................. 0796.1800.00
Battery (option) ................................ 0796.2012.00
0796.1800.02
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VOR/ILS Analyzer EVS200
Accessories
Chapter 6: Technical Specification
Description
Ident No.
Bag for EVS200
TEVS
ST1
0798-4264
0798-4270
Alu-tripod for antenna and measuring unit, Notebook,
inclusivly alignment level
Rigging set for tripod
AM
0798-4293
0798-4306
0798-4312
Bag for tripod, plate and rigging set
TST
MA1
Set halfwave measuring dipoles screened for:
75 MHz and 115 MHz or
335 MHz ±15%
KK1
0798-4235
0798-4235
0798-4335
Coaxialcable 50 Ω,
RG58 with 1xN/BNC-Connector, 5 m length
KK2
Coaxialcable 50 Ω,
RG58 with 1xN/BNC-Connector, 10 m length
Batterybelt for ext. supply at the EVS200 with internal
battery charger (12 V/5 Ah, for approx. 190 min operation
time, weight: 2150 g)
BG01
Batterybelt for ext. supply at the EVS200 with internal
battery charger (12 V/7 Ah, for approx. 260 min operation
time, weight: 2850 g)
BG02
0798-4341
Spiral connecting cable for batterybelt 1.50 m / 2 m for
cable BG1 / BG2
KBG1-2 0798-4329
SW-EVS 0798-4358
Remote control software for EVS200
0796.1800.02
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