The Marconi IFR Aeroflex 2394A is a fully synthesized spectrum analyzer covering 9 kHz to 13.2 GHz with 1 Hz frequency resolution. It delivers precise RF and microwave signal analysis across amplitude ranges of +30 dBm to −110 dBm with 50 Ohm input impedance and ±50 VDC protection. The instrument combines flexible resolution bandwidth control (10 Hz to 3 MHz), advanced marker functionality (up to 9 simultaneous markers with peak search and delta capabilities), and semi-automated measurements including adjacent channel power, occupied bandwidth, and harmonic distortion analysis. Signal demodulation supports AM/FM modulation testing with on-screen and audio output viewing. A 6.4-inch TFT color LCD display (640 × 480 pixels) provides high-visibility operation in bright ambient conditions. The analyzer stores up to 1,000 screen traces and 2,000 operational states internally, with 3.5-inch floppy disk and USB 2.0 bulk storage options. GPIB, USB 2.0, VGA, and RS-232 interfaces enable integration into automated test systems and external display configurations.
Technical Specifications
• Frequency Range: 9 kHz to 13.2 GHz (fully synthesized)
• Frequency Resolution: 1 Hz
• Input Signal Range: +30 dBm to −110 dBm
• Input Impedance: 50 Ohm
• Input Protection: ±50 VDC
• 1 dB Compression Point: >−10 dBm at 100 kHz to 13 GHz (0 dB attenuation)
• Resolution Bandwidth: 10 Hz to 3 MHz (digital RBW filters: 10 Hz, 30 Hz, 100 Hz with ±20% accuracy)
• Selectivity: <5:1 (−60 dB/−3 dB) for digital RBW filters
• Phase Noise: −90 dBc at 10 kHz offset
• Display: 6.4-inch TFT color LCD, 640 × 480 pixels
• Internal Storage: 1,000 screen traces; 2,000 operational states
– Key Features
• Up to 9 simultaneous markers with peak search, delta, peak track, and marker-to-center functions
• Semi-automated measurements: adjacent channel power, X dB down, occupied bandwidth, channel power, harmonic distortion
• Measurement limit thresholds with exceeding-limit notifications
• Auto-tune signal search with optimized span and RBW
• AM/FM demodulation with on-screen display and headphone audio output
• FM peak deviation and AM modulation depth measurement via markers
• Optional digital resolution bandwidth filters (Option 05)
• Optional marker label editing software (Option 12)
– Typical Applications
• RF and microwave signal characterization
• Adjacent channel power and spectral mask compliance verification
• Modulation quality assessment (AM/FM)
• Harmonic and spurious content analysis
• Occupied bandwidth and emission measurements
– Compatibility & Integration
• GPIB (standard), USB 2.0, VGA output, and RS-232 interfaces
• 3.5-inch floppy disk and USB 2.0 bulk storage
• External display via VGA connector
• AC power operation; DC operation option available (external source)
