IFR COM-120B Communications Service Monitor
From RFI International:
Fast Effective Wireless Test Solutions
The IFR COM120B 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 IFR 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.
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.
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
- 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 IFR 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
- 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 IFR 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.
