The Marconi IFR Aeroflex COM120B is a 1 GHz radio communications test set that consolidates more than 20 instruments into a single portable unit for field and bench deployment. It serves as an industry-standard platform for analog wireless testing, offering a cost-effective alternative to higher-priced modular systems.
Technical Specifications
RF Signal Generator
• Frequency range: 250 kHz to 999.9999 MHz
• Resolution: 100 Hz
• Output level (T/R): −130 to −20 dBm (Simplex), −130 to −40 dBm (Duplex)
• Auxiliary output: −130 to +13 dBm
• Modulation: Internal LF generator (0.01 Hz to 20 kHz) or external via front panel BNC; sine, triangular, and square wave outputs
Spectrum Analyzer
• Full scan to 1 GHz with split-screen dual display
• LIVE-REF and REF-LIVE comparison modes
• Simultaneous viewing with RF Generator or RF Receiver screens
RF Receiver
• Sensitivity: 2 µV
Oscilloscope
• Digitized full scan with 50 kHz bandwidth
RF Power Meter
• Measurement range: 2 mW to 200 Watts
• Antenna input protection to 10 Watts with overload alarm
Frequency Counters
• Frequency selective RF counter with RF error metering
• AF frequency counter
• Multi-range coverage: DC to 200 MHz; 200 MHz to 3 GHz; 3 GHz to 20 GHz; above 20 GHz
Modulation Analysis
• FM deviation meter (standard and ± peak modes)
• ΦM deviation meter (standard and ± peak modes)
• AM modulation meter
• SINAD meter: 0 to 55 dB range
• Distortion meter
Tracking Generator
• Standard independent operation; Option #12 may be required
– Key Features
• High-speed EDACS data capture with storage and recall for up to 50 system setups
• Narrow-band 900 MHz testing support
• User-definable channel frequencies
• Optional AC510 for advanced digital paging (Flex™, GSC, NEC D3)
• CLEARCHANNEL LTR™ trunking simulation
• TMAC programming language for custom test routines
• Direct base station power measurement to 200 Watts
– Interfaces & Integration
• RS-232 control interface
• Optional IEEE-488 (GPIB)
• PCMCIA slots for memory, modem, and serial adapters
