Marconi IFR Aeroflex 1500 1GHz Radio Communication Test Set

The Marconi IFR Aeroflex 1500 is a microprocessor-controlled, digitally synthesized communication service monitor that consolidates multiple test functions into a single portable unit. Designed for radio communication testing and servicing, this instrument delivers precise frequency synthesis, signal generation, and RF measurement across a broad operational range with integrated receiver and analysis capabilities.

– Technical Specifications

Receiver Architecture
• Quadruple conversion superheterodyne design
• Frequency range: 300 kHz to 999.9999 MHz

Signal Generator
• Frequency range: 100 kHz to 999.9999 MHz in 100 Hz increments
• Output power: 0 dBm to −128 dBm continuously variable into 50 Ω
• Optional High Output Amplifier extends output to +20 dBm
• Duplex generator: ±49.99 MHz from receive frequency in 10 kHz steps
• Duplex output power: 0 dBm to −128 dBm continuously adjustable into 50 Ω
• Generates modulated or unmodulated carriers

Frequency Measurement
• Counter range: DC to 200 MHz and 200 MHz to 3 GHz
• Master oscillator accuracy: 5 × 10⁻⁷ (0.00005%)

RF Performance
• Output power accuracy: ±2 dB (−10 to −80 dBm), ±2.5 dB (−80 to −128 dBm)
• Residual FM: Typically 30 Hz RMS (post-detection 50–300 Hz)

– Key Features

• LCD display for frequency readout; CRT for alphanumeric or waveform display
• Keyboard entry with processor-controlled memory functions
• Portable form factor for field operations

– Options & Interfaces

• GPIB remote control interface (Option 01)
• 0.05 PPM frequency standard (Option 02)
• Battery pack (Option 03)
• AMPS cell test capability (Option 08)

– Typical Applications

• Mobile telephone systems
• AM/FM/SSB transceivers
• CB and two-way radio systems
• Repeater testing and servicing