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-120B 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-120B (COM120B)   Description / Specification:    
AEROFLEX-IFR COM-120B Communications Service Monitor

The IFR-Aeroflex COM-120B Communications Service Monitor 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. 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: Digitized oscilloscope. RF and Auxiliary RF Generator. 2 µV receiver sensitivity. Frequency Selective RF Counter. RF Frequency Error Meter. FM Deviation Meter. Phase M 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 Phase M 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. Specifications. RF Signal Generator Frequency Range: 250 kHz to 999.9999 MHz. Resolution: 100 Hz. Output Level Range (T/R): -130 to -20 dBm (Simplex mode), -130 to -40 dBm (Duplex mode). Output Level Range (AUX): -130 to +13 dBm . Versions. -3, 30 kHz IF Filter. -3T, 30 kHz IF Filter with 0.01 ppm OCXO time base. -8, SSB Receive filter. -8T, SSB Receive filter with 0.01 ppm OCXO time base.


Standard Calibration $590.00 *
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*This is a Web introductory price for one calibration of the AEROFLEX-IFR COM-120B. 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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