The Marconi IFR Aeroflex 6843A combines scalar and spectrum analysis in a single instrument, enabling precise amplitude characterization of RF and microwave components from 10 MHz to 20 GHz. The dual-function architecture integrates a synthesized source, scalar receiver, and spectrum analyzer to support network measurements, insertion and return loss quantification, and full-band spectral analysis in production and field environments.
Technical Specifications
Scalar Analyzer
• Frequency range: 10 MHz to 20 GHz
• High dynamic range measurements with tuned receiver
• EEPROM corrected detectors
• Simultaneous insertion and return loss measurement
Spectrum Analyzer
• Frequency range: 10 MHz to 20 GHz
• Resolution bandwidth: 1 kHz to 3 MHz
• Instantaneous dynamic range: >80 dB
• Distortion-free dynamic range: >80 dB
• Maximum amplitude: +20 dBm
• Spurious performance: better than −60 dBc on full span sweeps
• Frequency counter integral to measurement system
• FM demodulator with built-in loudspeaker
Synthesized Source
• Frequency range: 10 MHz to 20 GHz
• Frequency resolution: 1 Hz
• Phase noise: low phase noise design
• Modes: CW output, swept source, tracking generator, offset tracking source
• Optional increased output power available 3 to 24 GHz
Frequency Extension
• External mixers extend range to 110 GHz in waveguide
– Key Features
• Super-heterodyne receiver architecture for high-frequency conversion
• Continuous full-band sweeps for harmonic and spurious detection
• Low distortion front end
• Autotune mode for rapid signal acquisition
• Wideband oscillators for microwave sensitivity
– Typical Applications
• Component and system network characterization
• Insertion and return loss analysis
• Harmonic and spurious emission measurement
• Frequency translation device validation
• CW signal generation and swept source applications
– Compatibility & Integration
The integrated synthesized source functions as both measurement reference and tracking generator, eliminating the need for external signal sources in dual-port scalar measurements. Spectrum analyzer and scalar receiver share common frontend architecture, enabling simultaneous or sequential analysis without reconfiguration.
