The Marconi IFR Aeroflex A7550 is a 1 GHz spectrum analyzer engineered for precise RF signal analysis from 10 kHz to 1 GHz. This portable instrument delivers 70 dB dynamic range and -120 dBm to +30 dBm measurement capability, making it suitable for field service, laboratory characterization, and system integration tasks. Direct center frequency entry, selectable resolution bandwidth (300 Hz to 3 MHz), and variable video filtering enable rapid signal detection and detailed spectral examination.
Technical Specifications
• Frequency Range: 10 kHz to 1 GHz
• Resolution Bandwidth: 300 Hz, 3 kHz, 30 kHz, 300 kHz, 3 MHz
• Measurement Range: -120 dBm to +30 dBm
• Dynamic Range: 70 dB
• Input Impedance: 50 Ohm (50/75 Ohm selectable, optional)
• Frequency Span: 1 kHz to 100 MHz/DIV (1-2-5 sequence); zero span capable
• Sweep Rates: 5 ms to 2 sec/DIV
• Frequency Span Accuracy: <5% of indicated frequency separation
• Residual FM: 65 dB below peak CW signal (3 kHz RBW, 300 Hz video filter)
• Amplitude Scale Linearity: 10 dB/DIV within 0.15 dB/dB; 2 dB/DIV ±0.4 dB/2 dB
• Maximum Input: +30 dBm (with attenuation); +20 dBm (standard conditions)
• Display: VRSTM CRT with selectable linear/log modes
• Video Filters: 300 Hz and 30 kHz
• Power Source: AC standard; DC optional (11V to 32V)
• Dimensions: 33.3 cm W × 18.5 cm H × 49.8 cm D
• Weight: Approximately 16 kg
– Key Features
• Single-function keyboard interface with menu-driven control
• Automatic amplitude calibration and bandwidth/sweep optimization
• Display modes include average, compare, store, recall, and live trace
• Direct RF carrier entry via synthesized tuning system
– Typical Applications
Field service, RF troubleshooting, transmitter/receiver alignment, interference identification, and spectrum occupancy monitoring in the HF through UHF bands.
– Compatibility & Integration
Optional interfaces: RS-232, IEEE-488/GPIB. Optional modules include tracking generator, FM/AM/SSB receiver (2 µV sensitivity), and quasi-peak detector.
