The Marconi IFR Aeroflex 2018A is a microprocessor-controlled AM/FM synthesized signal generator engineered for radio communication equipment testing and servicing. It delivers stable, precise RF signals across a wide frequency range with multiple modulation formats, keyboard entry, and optional GPIB programmability for integration into automated test systems.
Technical Specifications
Frequency Coverage
• 10 kHz to 520 MHz
• 10 Hz resolution across the operating range
Output Power
• Range: −127 dBm to +13 dBm
• Resolution: 0.1 dB
• Accuracy: ±1 dB up to 520 MHz
• Output impedance: 50 Ω
• VSWR: Better than 1.2:1 for carrier frequencies to 520 MHz at output levels below 300 mV EMF
Modulation Capability
• AM, FM, and phase modulation supported
• Internal AF oscillator with six fixed modulation frequencies
• External modulation inputs: amplitude, phase, or frequency
• Auxiliary FM input available
• External modulation input impedance: 100 kΩ nominal
• Modulation depth accuracy: Better than 14% of depth setting + 1% for depths to 95% at 1 kHz, carrier frequencies to 400 MHz
• Frequency response (external modulation): 1 dB from 20 Hz to 50 kHz relative to 1 kHz at 80% depth, DC coupled
• Extended FM bandwidth variant available
Noise Performance
• Maximum single-sideband noise: −130 dBc/Hz
• Harmonics: −30 dBc
• Non-harmonics: −60 dBc
Stability & Protection
• Timebase stability: 0.1 ppm/month
• Reverse power protection: 50 W maximum
– Key Features
• Non-volatile memory: stores up to 100 settings plus 20 test patterns
• Direct keyboard entry for rapid parameter setup
• Optional GPIB interface for automated control
• RS-232 interface with command set common to GPIB
• Universal power supply with auto-sense and switching
– Physical
• Dimensions: 20.67 × 16.73 × 5.98 in
• Weight: 35.27 lbs
– Compatibility & Integration
When equipped with the optional GPIB interface, the 2018A integrates directly into automated test systems, supporting remote instrument control and data logging through standard industry protocols.
