Custom-Cal has a high success rate in the repair of the AEROFLEX-IFR COM-120C. A calibration by Custom-Cal is performed by engineers with extensive OEM experience. We have the expertise and the necessary standards to perform the AEROFLEX-IFR COM-120C Calibration, onsite calibration may be available. We specialize in quick turnaround times and we can handle expedited deliveries upon request.

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   AEROFLEX-IFR COM-120C (COM120C)   Description / Specification:   Spec Sheet 
AEROFLEX-IFR COM-120C Communications Service Monitor

The Aeroflex IFR COM-120C is a microprocessor controlled, digitally synthesized communication service monitor, which combines the operations of many different test instruments into a single, compact unit. It is capable of generating CW or modulated signals from 250 kHz to 1000 MHz. The output level is variable from -130 to -13 dBm. Modulation types include AM, FM and PM (Phase Modulation) or apply an external modulation source. Generate DTMF, User Defined Tone Codes or Digital Codes. The COM-120C receives CW and modulated signals ranging from 250 kHz to 1000 MHz. In addition to single frequency operation, it demodulates and detects AM, FM and PM modulated signals and executes defined frequency sweep operations by scanning a range of predetermined Frequency List settings. Receive Operation Metering functions include RF Power, AM Modulation, FM Deviation, Phase Modulation, Distortion, Frequency Error, AF Frequency, Received Level and SINAD. Full Oscilloscope and Spectrum Analyzer operation is available. The RF Generator and RF Receiver both work in Duplex Operation Mode with the added capacity of using offset frequencies up to ±999.7500 MHz. The Aeroflex IFR COM-120C has two Audio Generators. One generator has a range of 10 Hz through 20 kHz and the second generator has a fixed 1 kHz tone. The waveforms are sine, square, triangle and ramp. It has a 50 kHz single trace Oscilloscope which can operate as a dependent or independent function in each of the Operation Modes. The Spectrum Analyzer monitors internal and external signals ranging from 250 kHz to 1000 MHz. The Scan width range is editable from 1 kHz to 100 MHz per/div. Options. Option 01 – Internal Battery. Option 02 – 0.01 OCXO. Option 03 – 30 kHz IF Filter. Option 04 – Variable Audio Generator 2. Option 05 – Generate Amplifier. Option 07 – Data Generator/Bit Error Rate (BER) Meter. Option 08 – SSB Receive Filter. Option 09 – RCC Signaling. Option 11 – Audio/Digital Signaling. Option 12 - Tracking Generator. Option 13 - IEEE 488 (GPIB) Interface. Option 14 - CLEARCHANNEL LTR. Option 15 - AMPS Mobile Station Test. Option 16 - EDACS.


Standard Calibration $650.00 *
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*This is a Web introductory price for one calibration of the AEROFLEX-IFR COM-120C. Price does not in most cases include measurement performance data. Pricing does include NIST traceable calibration and issue of a calibration certificate and calibration label. Pricing may vary slightly due to volume and location of laboratory supporting calibration. Volume pricing may apply. On-site fees may apply depending on logistics, location and volume of work to be completed during the visit.

Related Communication Terms and Definitions. For a complete list go to our  Terms and Definitions Page.

Decibel (dB)
A unit of measurement of optical power which indicates relative power. A -10 dB means a reduction in power by 10 times, -20 dB means another 10 times or 100 times overall, -30 means another 10 times or 1000 times overall and so on.

Plesiochronous Digital Hierarchy (PDH) is a transmission system for voice communication using plesiochronous synchronisation. The transmitter adds dummy information bits to allow multiple channels to be bit interleaved. The receiver discards these bits once the signals have been demultiplexed. PDH combines multiple 2 Mb/s (E1) channels in Europe and 1.544 Mb/s (DS1) channels in the US and Japan.

Spectral Width
Spectral Width is the wavelength interval over which the magnitude of all spectral components is equal to or greater than a specified fraction of the magnitude of the component having the maximum value. In optical communications applications, the usual method of specifying spectral width is the full width at half maximum. This is the same convention used in bandwidth, defined as the frequency range where power drops by less than half (at most -3 dB).

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