The Marconi IFR Aeroflex 2398 is a portable synthesized signal generator and spectrum analyzer operating across 9 kHz to 2.7 GHz. It delivers signal generation with AM, FM, and phase modulation, plus dual-role receiver testing through an integrated AM/FM demodulator. The instrument spans amplitude from +26 dBm to -105 dBm with 0.1 dB output resolution, supported by a fully synthesized local oscillator achieving ±0.1 ppm/°C temperature stability and ±0.1 ppm/yr ageing specification.
Technical Specifications
• Frequency Range: 9 kHz to 2.7 GHz (fully synthesized)
• Amplitude Range: +26 dBm to -105 dBm
• Output Level: 0 dBm to -70 dBm with 0.1 dB step resolution; ±1.0 dB output flatness @ 10 dB attenuation
• Resolution Bandwidth: 300 Hz minimum; 3 MHz maximum; user-selectable 100 kHz to 270 MHz in 1/2/5 step selections, plus ZERO and FULL span modes
• Video Bandwidth: 1 Hz, 10 Hz, 100 Hz, and 1 kHz selections
• Frequency Accuracy: ±0.1 ppm/°C temperature stability; ±0.1 ppm/yr ageing; 1 Hz resolution counter (signals above -70 dBm)
• Phase Noise: -90 dBc/Hz @ 10 kHz offset
• Spurious Emissions: Harmonics and sub-harmonics < -20 dBc; non-harmonics < -30 dBc
• Display: 7.4-inch monochrome LCD, 640 H x 480 V, split-screen operation
• Weight: 8.2 kg; Dimensions: 350 mm (W) × 185 mm (H) × 381 mm (D)
– Key Features
• AM, FM, and phase modulation for signal generation
• User-selectable measurements: occupied bandwidth, channel power, adjacent channel power, X dB down
• Pass/Fail limits capability
• Marker functions: peak, delta, marker noise, marker zoom
• Internal memory: 20 traces and 10 setups simultaneously
• Optional quasi-peak detector with 9 kHz and 120 kHz filters for EMC testing
• Autoset function for rapid signal acquisition
– Compatibility & Integration
• RS-232 serial interface (standard)
• Parallel printer port (standard)
• IEEE-488 (GPIB) port (standard or optional depending on variant)
• PCMCIA Type 1 card slot for trace, setup, and screen dump storage
