The Marconi IFR Aeroflex 3500A is a portable radio communications test set that delivers transmitter and receiver testing, modulation analysis, and signal generation in a single field-deployable unit. Weighing less than 8 lbs with magnesium alloy construction and Mil-PRF-28800F Class II certification, it operates on internal lithium ion battery power (up to 7 hours continuous) or external AC supply (100–240 VAC, 47–63 Hz). The instrument combines RF measurement, audio analysis, antenna diagnostics, and digital radio support into one compact platform for technicians and maintenance crews.
Technical Specifications
Frequency & Signal Generation
• Operating range: 2 MHz to 1 GHz
• Output power (T/R port): -50 to -120 dBm
• RF level measurement: -130 dBm to +20 dBm
• RF power accuracy: ±0.3 dB
• Receiver sensitivity: -130 dBm
• Spectrum analyzer noise floor: < -136 dBm
Modulation Support
• AM, FM, PM, DSB-AM, FM Stereo, AM/FM, P25, DMR, NXDN™
• AF generator and modulator with DCS generation
• Tracking generator for duplex tuning
Power & Battery
• Audio output power: 1 W
• Transmitter power measurement: up to 20 W (direct); up to 150 W (with external attenuator)
• Battery life: up to 7 hours continuous operation
• Battery recharge time: 4 hours
• External power: 100–240 VAC, 47–63 Hz
Physical
• Weight: < 8 lbs (3.6 kg)
• Dimensions: 441 mm × 197 mm × 482 mm
• Construction: Rugged magnesium alloy weatherproof case, Mil-PRF-28800F Class II rated
– Key Features
• Integrated spectrum analyzer with <-136 dBm noise floor
• AM/FM modulation meters with deviation and frequency error measurement
• Audio frequency oscilloscope and counter
• SINAD and distortion measurement
• Distance to fault (DTF), VSWR, return loss, and cable loss testing
• Save/recall test setup configurations for rapid field deployment
• High-power measurement capability to 150 W
– Typical Applications
• Two-way radio transmitter and receiver alignment and verification
• Land mobile radio (LMR) system maintenance
• Digital radio (P25/DMR/NXDN) performance testing
• Cable and antenna fault location and characterization
• Field service and depot-level diagnostics
– Compatibility & Integration
Supports P25, DMR, and NXDN™ digital radio platforms. Accepts external attenuators for extended power measurement range.
