The Marconi IFR Aeroflex 1900 Communications Service Monitor is a multifunction instrument combining RF signal generation, spectrum analysis, and modulation measurement in a single platform. Operating across 10 MHz to 2010 MHz, it delivers precise signal synthesis with 100 Hz resolution and <10 Hz RMS residual FM, paired with <-80 dBm receiver sensitivity for 10 dB SINAD. The unit executes comprehensive compliance testing for TIA/EIA-136 TDMA, AMPS/NAMPS, and MPT 1327 trunking systems across 400/800/1900 MHz cellular and PCS bands.
Technical Specifications
• Frequency Range (RF Signal Generator & Receiver): 10 MHz to 2010 MHz
• RF Signal Generator Output Power: -127 dBm to -10 dBm into 50 Ω (T/R connector: -30 dBm maximum with reverse power present)
• RF Signal Generator Resolution: 100 Hz
• RF Signal Generator Accuracy: ±1.5 dB (≥ -110 dBm)
• Modulation Level Range: -30 dBm to +25 dBm into 50 Ω
• Generator IF Output Frequency: 88 MHz to 90 MHz
• Residual FM: <10 Hz RMS
• SSB Phase Noise: <-94 dBc/Hz (20 kHz offset)
• Receiver Sensitivity: <-80 dBm for 10 dB SINAD (1 kHz tone, 6 kHz deviation, FM 2, ANT input)
• Spectrum Analyzer Bandwidth: 10 MHz to 2010 MHz
• Oscilloscope Span: Full span digitized, up to 1 MHz
– Key Features
• Microprocessor-controlled, digitally synthesized architecture for precise frequency and amplitude control
• Integrated signal generator, spectrum analyzer, modulation analyzer, and DVM/SINAD measurement functions
• TIA/EIA-136 TDMA compliance testing with VSELP and ACELP vocoder support; adjacent power measurement capability down to -40 dBm for live base station characterization
• AMPS/NAMPS mobile and base station testing with automatic routines, open control channel simulation, and voice channel signaling
• MPT 1327 trunking system support
• Analog standards coverage including TACS and NMT
• Remote operation capability
– Typical Applications
• Field and bench testing of 800/1900 MHz cellular and PCS infrastructure
• TIA/EIA-136 dual-mode handset authentication and protocol validation
• Base station power and adjacent channel verification without service interruption
• Spectrum monitoring and signal characterization in production and field environments.
– Compatibility & Integration
Designed for 400, 800, and 1900 MHz cellular and PCS band operations with native support for TIA/EIA-136, AMPS, NAMPS, and MPT 1327 protocols.
