COM 120B IFR_COM120B IFR COM120B

User Manual: IFR_COM120B

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Wireless - Radio Test Sets

COM-120B
Communications Service Monitor
The industry standard
for fast, effective analog
wireless testing, including
high performance
spectrum analysis,
AMPS, EDACS and
advanced paging test
features
Split Screen digitized full scan
spectrum analyzer to 1 GHz
EasyCom software allows
simplified testing of land mobile
transceivers
EasySpan automated test
software allows you to display and
capture spectrum analyzer and
tracking generator sweep
information
LIVE-REF and REF-LIVE
comparisons for spectrum analyzer
display
Digitized full scan oscilloscope to
50 kHz
Enhanced PCMCIA for easy data
analysis
Optional AutoCell-NT automated
cellular base station test software
High speed EDACS data capture
capabilities with up to 50 user
defined set-ups
Full paging test for analog paging
formats and advanced digital
paging with the AC510 option
Optional independent tracking
generator
200 W power measurement
capability
RS-232 control interface with
optional IEEE-488 (GPIB)

Fast Effective Wireless Test Solutions
The COM-120B has become an industry
recognized standard in Communication
Service Monitors.
A tough, portable
monitor with a full performance spectrum
analyzer and digital oscilloscope, the
COM-120B combines over 20 instruments
into one unit, the versatile COM-120B
offers a cost effective alternative to higher
cost test sets.
Unique Split Screen Spectrum Analyzer
The COM-120B offers a split screen
dual display spectrum analyzer.
This
feature allows you to view two signals or
the same signal in two different ranges
simultaneously. In addition, the spectrum
analyzer can be viewed along with the RF
Generator or RF Receiver screens giving
you full control over testing details at one
glance.

Split screen spectrum analyzer gives you more
flexibility

RF Solutions
For RF testing professionals, the fully
independent generator and receiver
functions yield truer signal tracing,
expanded analyzer capabilities and cross
band duplex testing. In addition, the

COM-120B boasts an impressive set of
standard features:
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Digitized oscilloscope
RF and Auxiliary RF Generator
2 µV receiver sensitivity
Frequency Selective RF Counter
RF Frequency Error Meter
FM Deviation Meter
ΦM Deviation Meter
AF Frequency Counter
AM Modulation Meter
RF Power Meter
RF Level Meter
Distortion Meter
SINAD Meter with 0 - 55 dB range
LIVE-REF and REF-LIVE on the
Spectrum Analyzer and Oscilloscope,
Average, peak hold and min hold can
be displayed independently
• The FM and ΦM Deviation Meters
allow toggling of the deviation meter
from the standard mode to the
± peak mode. The measurement
shows the + and - peak deviation as
two separate readings
EDACS and LTR Testing
The EDACSTM option provides a
comprehensive system test for both
repeaters and terminals.
The EDACSTM option also incorporates:
• High speed data capture which reads
EDACS data as soon as the
COM-120B’s DSP decodes valid
EDACS messages.
• Individual Call System All-Call
decodes a dual message on the
inbound control channel.
• Support for Narrow-band (900) MHz
testing.
• User definable frequencies as
channels.

http://www.ifrinternational.com

COM-120B

1

COM-120B
• Expanded storage capability that
allows users to store and recall up to
50 EDACSTM system test set-ups.
The CLEARCHANNEL LTRTM trunking
option allows the COM-120B to be
configured to simulate LTR repeater
systems. The test set can perform system
encode/decode functions as well as Home
and Next repeater access procedures.

Clear Channel LTR Menu

Full Paging Support
The standard COM-120B performs
encode/decode of 2-tone and sequential
tone testing, as well as tone squelch, DCS
and DTMF. The flexibility of the COM-120B
is enhanced with optional analog/digital
signaling. This feature allows you to test
the following formats:
CCIR
CCIRH
CCIRH4
EEA
EIA
NATEL
ZVEI
DZVEI
DDZVEI
EURO
5/6 TONE
POCSAG
Adding the AC510 option enables the
COM-120B to encode advanced digital
paging formats including FlexTM, Golay
Sequential Code (GSC) and NEC D3.
Analog Cellular Solutions
The COM-120B may be configured with
an optional AMPS Mobile Station testing
feature which is designed to verify proper
operation of AMPS handsets and mobiles.
Flexible testing includes both automatic
and manual test functions.

may be used to create custom test
applications.
Using the COM-120B’s
TMAC programming language, complex
tests can be reduced to simple “onetouch” test procedures.
And with its intuitive internal/external
data file storage and retrieval system,
complex testing is simple and efficient.
This system allows users to create userdefined tests and customized results logs.
It also gives you the flexibility to store data
internally or download test results to a PC.
RS-232 or IEEE-488 (GPIB) Remote
Testing Ability
Fully automated or remote testing
abilities in a stand alone or multiple
instrument environment can be realized
with the standard RS-232 interface or with
the IEEE-488 (Option 13) interface.
Power Tests from 2 mW to 200 Watts
The COM-120B provides low level
measurements with high power protection
for measuring off air signals as well as
direct base station power measurements
up to 200 Watts. The antenna input is
protected to 10 Watts with a built in alarm
to notify you if you are in an overload
condition.
Software Options Simplify Testing
For those requiring automated test
capability, several applications software
packages are available:
EasyCom-B (AC1022)
Simplifies routine performance testing
of land mobile transceivers.
AutoCell - NT (AC1037)
Provides automated testing and
calibration of Northern Telecom, Novatel
and GE analog cellular base stations.
EasySpan (AC1009W)
Can store, display and manipulate
spectrum analyzer and tracking
generator sweep information to a PC
running windows.
All IFR software can be down loaded
using the PCMCIA memory card or through
the RS-232 interface using a PC controller.
The COM-120B is compatible with popular
accessories from other manufacturers
including the Optoelectronics Super Scout
and the STI 9100 series mobile signal
analysis and data acquisition system.

Specification

Accuracy
± 2 dB (>-90.1 dBm, <400 MHz)
± 2.5 dB otherwise
VSWR
<1.15:1 (0.25 to ≤100 MHz)
<1.23:1 (100 to ≤400 MHz)
<1.38:1 (400 MHz to 1 GHz)

Spectral Purity
Residual FM
<20 Hz RMS (0.3 to 3 kHz BW)
Residual AM
<0.5% RMS (0.3 to 3 kHz BW)
Harmonics
<-26 dBc
Non-Harmonics
<-45 dBc (below 1 GHz)
<-40 dBc (above 1 GHz)
Input Protection
(T/R)
50 W CW continuous
100 W CW (90 sec - 3 min cycle)
150 W CW (30 sec - 3 min cycle)
200 W CW (15 sec - 3 min cycle)

Frequency Modulation
RF Frequency Range
250 kHz to 999.9999 MHz
Deviation Range
100 Hz to 100 kHz
Deviation Resolution
10 Hz (0.01 kHz to 2.55 kHz)
50 Hz (2.60 kHz to 12.75 kHz)
100 Hz (12.8 kHz to 25.5 kHz)
500 Hz (26.0 kHz to 100.0 kHz)
Rate
10 Hz to 20 kHz (FSK rates up to 40 kbps)
Accuracy
±5% + residual FM + resolution (1 kHz rate,
GEN1, GEN2, EXT MOD)
±10% + residual FM + resolution (DATA GEN)
±15% + residual FM + resolution (DTMF GEN)
Distortion
<2% (1 kHz sine wave, 10 kHz deviation, 0.3 to
3 kHz BW)
EXT MOD Sensitivity
2 kHz/Vpk ±15% (FM Narrow)
10 kHz/Vpk ±15% (FM Wide)

Amplitude Modulation
RF Frequency Range
250 kHz to 999.9999 MHz
AM Depth Range
30% to 90%
Resolution
0.5 %
Rate
100 Hz to 10 kHz
Accuracy
±5% + residual AM + resolution (1 kHz rate, RF
Level <0 dBm)
±15% + residual AM + resolution (RF Level
<0 dBm)
Distortion
<2% (30% to 90% modulation, 1 kHz rate, 0.3 to
3 kHz BW)
EXT MOD Sensitivity
5% to 15% per Vpk

RF Signal Generator

Analog AMPS Capabilities

Complex Testing Made Simple
Even with its impressive list of testing
capabilities, the COM-120B retains the
simplicity that has earned the respect of
thousands of dedicated users. A modem
capability turns the COM-120B into a
remote controlled instrument. Tests can
now be initiated remotely by simply
plugging in a modem.
For more specialized testing, the
COM-120B programmable test function

2

COM-120B

Frequency Range
250 kHz to 999.9999 MHz
Resolution
100 Hz
Accuracy
Same as Master Oscillator

Output Level
(T/R and AUX Connectors)
Range (T/R)
-130 to -20 dBm (Simplex mode)
-130 to -40 dBm (Duplex mode)
Range (AUX)
-130 to +13 dBm
Resolution
0.1 dB

Phase Modulation
RF Frequency Range
250 kHz to 999.9999 MHz
Modulation Range
0.1 to 10 radians peak
Resolution
0.1 radian (2.6 to 10.0 rad)
0.01 radian (below 2.55 rad)
Rate
100 Hz to 6 kHz

http://www.ifrinternational.com

Accuracy
±5% + residual PM + resolution (1 kHz rate)
±15% + residual PM + resolution (DTMF GEN)
EXT MOD Sensitivity
2 rad/Vpk ±15%

Audio Data Generators
AF GENERATOR #1
Frequency Range
5 Hz to 20 kHz (sinewave only)
5 Hz to 10 kHz (other waveshapes)
Frequency Resolution
0.1 Hz
Frequency Accuracy
Same as timebase ±0.1 Hz
Output Range (High Lvl)
0.01 Vpk to 2.5 Vpk (into 150 Ω)
Output Resolution (High Lvl)
0.01 Vpk
Output Accuracy (High Lvl)
±3% full range ±5 mVpk (≤10 kHz, ≥0.03 Vpk)
±7% full range ±5 mVpk (>10 kHz, ≥0.03 Vpk)
Output Range (Low Lvl)
1 mVpk to 250 mVpk (into 150 Ω)
Output Resolution (Low Lvl)
1 mV
Output Accuracy (Low Lvl)
±4% full range ±0.25 mVpk (≤10 kHz,
.03 Vpk < level ≥ 1 mVpk)
±7% full range ±0.25 mVpk (>10 kHz,
0.03 Vpk < level ≥1 mVpk)
THD
<0.7% (1 kHz sinewave, 2.5 Vpk, 150 Ω load)
<1% sinewave (all other frequencies/levels)
Waveshapes
Sine, Ramp, Square, Triangle
AF GENERATOR #2
Frequency Range
5 Hz to 20 kHz (sinewave only)
5 Hz to 10 kHz (other waveshapes)
Frequency Accuracy
±0.2 Hz
Output Range (High Lvl)
0.01 Vpk to 2.5 Vpk (into 150 Ω)
Output Resolution (High Lvl)
0.01 Vpk
Output Accuracy (High Lvl)
±3% full range ±5 mVpk (≥ 0.03 Vpk)
Output Range (Low Lvl)
1 mVpk to 250 mVpk (into 150 Ω)
Output Resolution (Low Lvl)
1 mV
Output Accuracy (Low Lvl)
±4% full range ±0.25 mVpk
(0.03 Vpk < level ≥1 mVpk)
THD
0.7% (2.50 V peak, into 150 Ω)

DTMF Generator
Output Range (High Lvl)
0.01 Vpk to 2.5 Vpk (into 150 Ω)
Output Resolution (High Lvl)
0.01 Vpk
Output Accuracy (High Lvl)
±10% full range ±5 mVpk (≥30 mV)
Output Range (Low Lvl)
0.1 mVpk to 25 mVpk (into 150 Ω)
Output Resolution (Low Lvl)
1 mVpk
Output Accuracy (Low Lvl)
±10% full range ±0.25 mVpk (1 mV to 30 mV)
Modes
Continuous, single shot
Digits
16 (0-9, *, #, A, B, C, D)
Mark/Space Timing
25 to 999 msec
Mark/Space Timing Resolution
1 msec
Mark/Space Timing Accuracy
±20%

Receiver

Frequency Modulation Meter

Range
250 kHz to 999.9999 MHz
Resolution
100 Hz
Tunable Range
Tunable from 0 Hz to 1.0 GHz
(characteristics below 250 kHz are not specified)
Sensitivity
2 µV (10 dB SINAD, >2 MHz, 1 kHz tone, 3.3 kHz
deviation, 15 kHz IF BW, C-Message weighted filter,
10 kHz FM deviation meter range, 15 to 35°C
<2.5 µV otherwise
Antenna Input Protection
10 W CW (5 sec with alarm)
Selectivity
300 kHz
15 kHz
30 kHz
Adjacent Channel Rejection

Ranges
2 kHz, 5kHz, 10 kHz, 20 kHz, 50 kHz, 100 kHz full
scale
Resolution
10 Hz (2,5 & 10 kHz range)
100 Hz (20, 50, and 100 kHz Ranges)
Accuracy
±5% full scale ± 50 Hz ± 1 digit + source residual
FM (300 kHz IF BW, 1 kHz tone, 5 kHz deviation,
C-Message weighted filter)
Modulation Rate
0 to 20 kHz
Carrier Range
250 kHz to 999.9999 MHz (The received frequency
must be within the IF bandpass)
Carrier Level
0 to +53 dBm (T/R connector)
-60 to 0 dBm (ANT connector)

IF Bandwidth

Selectivity

(3 dB)
300 kHz
15 kHz

>30 dB Down
±485 kHz
±15 kHz

Demodulation Output (<50 Ω)
FM:
0.20 Vpk/kHz ±10%
(10 kHz range)
0.10 Vpk/kHz ±10%
(20 kHz range)
0.04 Vpk/kHz ±10%
(50 kHz range)
0.02 Vpk/kHz ±10%
(100 kHz range)
AM:
1.13 ±0.06 V RMS
(80% modulation)
ΦM:
0.2 Vpk/rad ±10%

Selective RF Counter
Frequency Range
250 kHz to 999.9999 MHz (The received frequency
must be within the IF bandpass of the COM-120B)
Tunable Range
0 Hz to 999.9999 MHz (characteristics below 250
kHz are not specified)
Resolution
1 Hz (10 sec gate time)
10 Hz (1 sec gate time)
Accuracy
Same as Master Oscillator ±2 Hz
RF Level (Input Range)
0 to +53 dBm (T/R connector)
-60 to 0 dBm (ANT connector)

RF Frequency Error
Meter Range
0 Hz to 100 kHz
Meter Accuracy
Same as Master Oscillator ±2 counts
Meter Resolution
1 Hz (10 sec gate time)
10 Hz (1 sec gate time)
RF Frequency Range
250 kHz to 999.999999 MHz (The received
frequency must be within the IF bandpass of the
COM-120B)
RF Level
0 to +53 dBm (T/R connector)
-60 to 0 dBm (ANT connector)

AF Frequency Counter
Frequency Range
10 Hz to 20 kHz
Accuracy
Same as Master Oscillator ± 1 count
Resolution
0.1 Hz (1 sec gate time, 10 Hz to 500 Hz)
1 Hz (1 sec gate time, 500 Hz to 20 kHz)
0.1 Hz, (10 sec gate time)
Input Signal Level
SCOPE/DMV Input:
90 mVp-p (50 mV range, any waveform)
AUDIO/DATA Input
450 mVp-p (any waveform)

Wireless - Radio Test Sets

COM-120B

ΦM Meter

Ranges
1 rad, 2 rad, 5 rad, 10 rad peak full scale
Resolution
0.01 rad (1 and 2 radian scales)
0.1 rad (5 and 10 radian scales)
Accuracy
±5% of full scale ±0.1 rad ±1 digit + source
residual PM (300 kHz IF BW, 1.0 kHz tone, 1.0 rad
deviation, C-Message weighted)
Modulation Rate
100 Hz to 6 kHz
Carrier Range
250 kHz to 999.9999 MHz (The received frequency
must be within the IF bandpass )
Carrier Level
0 to +53 dBm (T/R connector)
-60 to 0 dBm (ANT connector)

AM Modulation Meter
Range
1% to 100%
Resolution
0.1%
Accuracy
±5% of full scale ±1 digit +source residual AM
(300 kHz IF BW, 1 kHz tone, 50% AM depth,
C-Message weighted filter)
Modulation Rate
50 Hz to 10 kHz
Carrier Range
250 kHz to 999.9999 MHz (The received frequency
must be within the IF bandpass of the COM-120B)
Carrier Level
0 to +53 dBm (T/R connector)
-60 to 0 dBm (ANT connector)
AGC Attack Time
50 msec maximum

RF Power Meter
Meter Ranges
2 mW to 200 W in a 1-2-5 sequence
Resolution
1 % of full scale or 0.1 mW whichever is greater
Accuracy
±10% ±0.1 mW ±1 digit (>200 mW, 15 to 36°C)
±15% ±0.1 mW ±1 digit (<200 mW below 15°C
and above 35°C)
Frequency Range
1.5 MHz to 999.9999 MHz
RF Level Range
2 mW to 200 W average power
Usable Level
0.2 mW to 200 W average power (characteristics
below 2 mW not specified)
Operating Conditions
50 Watts CW continuous (50°C)
100 Watts CW (90 sec/3 min, 50°C)
150 Watts CW (30 sec/3 min, 50°C)
200 Watts CW (15 sec/3 min, 50°C)
VSWR
1.15:1 (0.25 to 100 MHz)
1.23:1 (100 to 400 MHz)
1.38:1 (400 MHz to 999.9999 MHz)
Alarms
Audible and visual (if applied power exceeds 200 W

http://www.ifrinternational.com

COM-120B

3

COM-120B
in the 200 W range or the COM-120B’s power term
module temperature exceeds 105°C)

Receive Level Meter
Range
-101 to -30 dBm (15 kHz IF BW)
-80 to -30 dBm (300 kHz IF BW)
Accuracy
±3 dB
Frequency Range
250 kHz to 999.9999 MHz (The received frequency
must be within the IF bandpass of the COM-120B)

Distortion Meter

HORIZONTAL
Ranges
100 µs to 200 ms per division
(1-2-5 sequence)
Accuracy
1 % full scale, 500 data points, 10 major divisions
Resolution
1 % full scale
Input Impedance
1 MΩ, unbalanced (nominal)

Spectrum Analyzer
Center Frequency
250 kHz to 999.9999 MHz
Tunable Range
0 Hz to 999.9999 MHz (characteristics below
250 kHz are not specified)
Resolution
100 Hz
FREQUENCY SPAN
Ranges
1 kHz to 100 MHz per division in a
1-2-5 sequency and zero span
Accuracy
±5% of span width
Operational Modes
Normal, Split Screen
Frequency Span Modes

Range
1 % to 20%
Resolution
0.1 %
Accuracy
±0.5% distortion ±1 digit (1 to 10%)
±2% distortion ±1 digit (>10% to 20%)
Signal Frequency
1 kHz sine wave
Signal Level
0.03 to 200 VRMS (SCOPE/DVM input)
0.15 to 15 VRMS (AUDIO/DATA IN)

SINAD Meter
Range
3 to 30 dB
Resolution
0.1 dB
Accuracy
±1 dB ±1 digit (at 12 dB SINAD)
Signal Frequency
1 kHz sine wave
Signal Level
0.03 to 200 VRMS (SCOPE/DVM input)
0.15 to 15 VRMS (AUDIO/DATA IN)

Digital Voltmeter
Ranges
50 mV to 200 V in a 1-2-5 sequence
Range (DC)
10 mV to 200 VDC (SCOPE/DVM input)
Range (AC)
10 mV to 200 V RMS (SCOPE/DVM input)
150 mV to 15 V RMS (AUDIO/DATA IN)
Resolution
3 ½ digit
Accuracy
±5% full scale ±5 mV ±1 digit
(SCOPE/DVM input)
±7% full scale ±5 mV ±1 digit
(AUDIO/DATA IN)
Frequency
DC, 50 Hz to 20 kHz
Input Impedance
1 MΩ, unbalanced (SCOPE/DVM/SINAD IN)
100 kΩ, unbalanced (AUDIO/DATA IN)

Oscilloscope
Bandwidth (3 dB)
50 kHz
VERTICAL
Ranges
10 mV to 50 V per division (1-2-5 sequence)
Max Input
200 RMS
Accuracy
5% full scale
Resolution
1 % full scale, 256 data points, 8 major divisions
Coupling
DC, AC and GND

Scan Width
100 MHz/div
50 MHz
20 MHz
10 MHz
5 MHz
2 MHz
1 MHz
500 kHz
200 kHz
100 kHz
50 kHz
20 kHz
10 kHz
5 kHz
2 kHz
1 kHz
0 kHz

RBW
3 MHz
3 MHz
3 MHz
3 MHz
300 kHz
300 kHz
300 kHz
30 kHz
30 kHz
30 kHz
30 kHz
3 kHz
3 kHz
3 kHz
300 Hz
300 Hz
30 kHz

Power Requirements
Line Voltage
90 to 130 VAC (50 to 400 Hz)
180 to 265 VAC (50 to 60 Hz)
DC Input
12 to 30 VDC
Power Consumption
AC 180 W maximum
AC 110 W typical
DC 150 W maximum
DC 90 W typical

General Characteristics
Operating Temperatures
0 to 50°C
Dimensions
400 mm (15.75 in) W, 190 mm (7.5 in) H,
429 mm (16.875 in) D (without bail handle and
front panel cover)
440 mm (17.32 in) W, 190 mm (7.5 in) H,
537 mm (21.125 in) D (with bail handle and front
panel cover)
Weight
17.3 kg (38.5 lb) (without options, lid, accessories)

Versions and Accessories
When ordering please quote the full ordering number
information.
Ordering
Numbers
120B-3
120B-3-C
120B-3T
120B-3T-C

LEVEL
Display
Log, 2 and 10 dB per division
Vertical Resolution
1 dB
Dynamic Range
60 dB
Bandwidth Switching Error
<3 dB
Log Linearity
±2 dB (referenced to -40 dBm, 15 to 35°C)
±3 dB (referenced to - 40 dBm, 0 to 15°C and
35 to 50°C)
Input Attenuator
0, 30 dB (ANT connector)

RS-232C
Operations Mode
Off, PC (input/output)
Baud Rate
100, 150, 300, 600, 1200, 2400, 4800, 9600,
19200, 38400
Stop Bits
1,2
Parity
Odd, Even, None
Handshake
None, Xon/Xoff, CTS/RTS

IFR Americas, Inc., 10200 West York Street, Wichita, Kansas
67215-8999, USA. E-mail: info@ifrsys.com
Tel: +1 316 522 4981 Toll Free USA: 1 800 835 2352 Fax: +1 316 522 1360

Master Oscillator
TCXO
Frequency
10 MHz
Uncertainty
±0.1 ppm
Temperature Stability
±0.2 ppm (0 to 50°C)
Ageing Rate
±0.5 ppm/year

120B-8
120B-8-C
120B-8T
120B-8T-C

AC 510
AC0600
AC1009W
AC1022
AC1023
AC1025
AC1037
AC1201
AC3001
AC3007
AC3009
AC3011
AC3012
AC3013
AC3014
AC3015
AC3016
AC4101
AC8645
AC9161
AC9162
AC9925

Versions
COM-120B Service monitor; 30 kHz IF Filter
120B-3 with Certificate of Calibration
120B-3, 0.01 ppm OCXO time base
120B-3, 0.01 ppm OCXO time base with
Certificate of Calibration
COM-120B, SSB Receive filter
120B-8 with Certificate of Calibration
120-B-8 with 0.01 ppm OCXO time base
120B-8 with 0.01 ppm OCXO time base with
Certificate of Calibration
Accessories
Paging encoder (FLEX)
Maintenance manual
EasySpan for Windows (Waveform Transfer
Software)
EasyCom-B
Applications library
EasySweep (req AC3012)
Autocell-NT (req 120E or 120F)
Telescopic antenna
Internal rechargeable battery
Data generator/BER meter
RCC Signaling
Digital/Analog Sampling
Tracking generator
IEEE-488
CLEAR CHANNEL LTR
AMPS Mobile station test (req 120E or 120F)
EDACS
Return loss bridge (5 MHz to 1 GHz)
Microphone
MPT-1327 Trunking
7.5 kHz IF Filter
Soft padded carrying case

CLEARCHANNEL LTR is a registered trademark of Transcrypt
International, Inc.
EDACS is a registered trademark of Ericsson, Inc.
Flex is a registered trademark of Motorola, Inc.
Windows is a registered trademark of Microsoft Corporation.
EasyCom-ΦΜ, EasySweep and EasyScan are copyrighted by
IFR Systems, Inc.

IFR Ltd, Longacres House, Norton Green Road, Stevenage, Herts
SG1 2BA, United Kingdom. E-mail: info@ifrinternational.co.uk
Tel: +44 (0) 1438 742200 Freephone UK: 0800 282 388 Fax: +44 (0) 1438 727601

As we are always seeking to improve our products, the information in this document gives only a general indication of the product capacity, performance and suitability, none of which shall form part of any
contract. We reserve the right to make design changes without notice. All trademarks are acknowledged. Parent Company IFR Systems, Inc. © IFR Ltd. 1999.

4

COM-120B

http://www.ifrinternational.com

46891-025
Issue 1



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Create Date                     : 1999:12:06 10:28:37
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Modify Date                     : 1999:12:06 10:49:24Z
Title                           : COM-120B
Subject                         : Wireless - Radio Test Sets
Author                          : IFR Ltd
Page Count                      : 4
Page Mode                       : UseOutlines
Page Layout                     : SinglePage

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