The Marconi IFR Aeroflex 2395A is a portable spectrum analyzer for RF and microwave signal characterization across 1 kHz to 26.5 GHz. It delivers 1 Hz frequency resolution via a fully synthesized local oscillator and measures signals from +30 dBm to -110 dBm with input protection to ±50 VDC. The instrument combines field-grade portability at 12 kg with laboratory-grade performance: resolution bandwidth from 300 Hz to 3 MHz, phase noise of -90 dBc at 10 kHz offset, and selectivity better than 5:1 at the -60/-3 dB ratio. A 6.4-inch TFT color LCD (640 × 480 pixels) displays up to nine simultaneous markers with delta, peak search, and center-frequency tracking functions. Semi-automated measurements include adjacent channel power, occupied bandwidth, channel power, harmonic distortion, and X dB down analysis with settable limits and on-screen excursion warnings. AM/FM demodulation with audio output to internal speaker and headphone jack supports full communications system testing, including FM peak deviation and AM modulation depth measurement. The analyzer stores up to 1,000 screen traces and 2,000 operational states internally; USB 2.0 and 3.5-inch floppy disk interfaces enable external data transfer.
Technical Specifications
• Frequency Range: 1 kHz to 26.5 GHz
• Frequency Resolution: 1 Hz (fully synthesized)
• Input Signal Range: +30 dBm to -110 dBm
• Input Protection: ±50 VDC
• 1 dB Compression Point: >-10 dBm at 0 dB attenuation (100 kHz to 26.5 GHz)
• Resolution Bandwidth: 300 Hz minimum to 3 MHz maximum; 100 Hz, 30 Hz, and 10 Hz filters available; ±20% accuracy
• Selectivity: <5:1 (-60 dB / -3 dB ratio)
• Phase Noise: -90 dBc at 10 kHz offset
• Displayed Average Noise Level (DANL): Typically 5 dB lower than 300 Hz RBW between 1 MHz and 13 GHz
• Sweep Time (10 kHz span): <0.9 sec (100 Hz RBW), <3 sec (30 Hz RBW), <4.5 sec (10 Hz RBW)
• Display: 6.4-inch TFT color LCD, 640 × 480 pixel resolution
• Weight: 12 kg (26.5 lbs)
– Key Features
• Nine simultaneous markers with delta, peak search, peak track, marker track, marker to center, and marker to reference functions
• Semi-automated adjacent channel power, occupied bandwidth, channel power, harmonic distortion, and X dB down measurements
• Measurement limit settings with on-screen excursion warnings
• AM/FM demodulation with internal loudspeaker and headphone output
• Auto-tune for unknown signal capture
• Internal storage: 1,000 traces and 2,000 operational states
• USB 2.0 and 3.5-inch floppy disk interfaces for external data transfer
– Typical Applications
• RF and microwave signal analysis in field and laboratory environments
• Communications system testing via AM/FM demodulation
• Harmonic and spurious content measurement
• Bandwidth and channel power characterization
– Compatibility & Integration
USB 2.0 and 3.5-inch floppy disk storage enable data archival and configuration portability across test stations.
