The Marconi IFR Aeroflex 3283 is a high-performance spectrum analyzer covering 3 Hz to 26.5 GHz with advanced digital signal processing for precision spectral analysis across design and production environments. It delivers level accuracy of ±0.15 dB up to 3 GHz and exceptional noise floor performance (DANL <-150 dBm/Hz), supported by a fully synthesized local oscillator with 1 Hz resolution and excellent phase noise characteristics. The instrument combines a large 10.4-inch TFT color display with flexible dual-window trace capability, nine marker functions, and comprehensive measurement tools including channel power, occupied bandwidth, spectrum emission mask, TOI measurement, harmonic distortion, and phase noise analysis. Optional digital demodulation with 36 MHz analysis bandwidth and streaming LVDS output enables advanced signal capture and post-processing workflows.
Technical Specifications
Frequency Range: 3 Hz to 26.5 GHz
Level Accuracy: ±0.15 dB up to 3 GHz; better than ±0.05 dB after warm-up following frequency or level change (valid 2+ hours, excluding temperature influence)
Displayed Average Noise Level (DANL): Less than -150 dBm/Hz
Third Order Intermodulation (TOI): +18 dBm
1 dB Compression Point: -5 dBm at 26.5 GHz
Phase Noise: <-115 dBc/Hz at 1 GHz, 10 kHz offset
Resolution Bandwidth: 30 Hz minimum to 5 MHz maximum via digital IF; 1 Hz resolution available
Amplitude Range: -150 dBm to +30 dBm (<100 MHz); -150 dBm to +40 dBm (100 MHz–1.5 GHz); -150 dBm to +80 dBm (1.5–26.5 GHz)
Local Oscillator: Fully synthesized with 1 Hz resolution
– Key Features
• AM and FM demodulation standard; optional digital demodulation with 36 MHz analysis bandwidth
• Built-in measurements: channel power, adjacent channel power, occupied bandwidth, spectrum emission mask, TOI, harmonic distortion, X dB down, phase noise
• Large 10.4-inch TFT display supporting full-screen or dual-window modes with up to 3 traces per window
• Nine selectable markers with tabular readout option
• Windows XP operating system
• USB 2.0 (front/rear), LAN, and CD ROM connectivity; internal hard drive storage
• Optional tracking generator (9 kHz–3 GHz) with ±2.0 dB absolute level accuracy and -70 to 0 dBm output range
– Typical Applications
Spectral analysis in design verification, production testing, interference identification, and signal characterization across RF, microwave, and millimeter-wave frequencies.
– Compatibility & Integration
Multiple data interfaces support external equipment integration via USB and LAN. Optional digital demodulator with LVDS output enables real-time IQ streaming for advanced analysis platforms.
