Aeroflex / IFR / Marconi COM-120A Radio Communications Test Set

Description

The IFR COM-120A 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-120A combines over 20 instruments into one unit; the versatile COM-120A offers a cost-effective alternative to higher-cost test sets.
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-120A boasts an impressive set of standard features:
Digitized oscilloscope
RF and Auxiliary RF Generator
2 £gV receiver sensitivity
Frequency Selective RF Counter
RF Frequency Error Meter
FM Deviation Meter
£XM Deviation Meter
AF Frequency Counter
AM Modulation Meter
RF Power Meter
RF Level Meter
Distortion Meter
SINAD Meter with 0 - 55 dB range
The FM and
£XM
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.
LIVE-REF and REF-LIVE on the Spectrum Analyzer and Oscilloscope, Average, peak hold, and min hold can be displayed independently.
An error screen comes up on bootup, but in IFR forums, I was told to disregard this as it is a known bug that sometimes, when a specific function is left on, shows this message at bootup. After bootup, the unit operates in all the functions. I used this unit for spectrum analyzer only; therefore not familiar with all the functions.  The certification has expired, and if you require certification, you will need to have it done by a professional certification service. No returns.