The Marconi IFR Aeroflex 6847A is a dual-function RF and microwave analyzer combining scalar network analysis with spectrum analysis in a single instrument. Operating from 10 MHz to 20 GHz for scalar measurements and up to 26.5 GHz for spectrum analysis, it delivers integrated testing across design, manufacturing, installation, and maintenance workflows.
Technical Specifications
Scalar Analyzer
• Frequency range: 10 MHz to 20 GHz
• Dynamic range: 90 dB
• Insertion loss measurement capability: >80 dB
• Four-input analyzer with AC and DC detection
• EEPROM-corrected detectors with individual characterization for linearity and frequency response
• Tuned input for enhanced dynamic range
• Two auto-scaling display channels supporting up to four live or stored traces
• Path calibration modes: Through, short/open, short
Spectrum Analyzer
• Frequency range: Up to 26.5 GHz (usable to 30 GHz)
• Resolution bandwidth filters: 3 MHz to 1 kHz (100 Hz to 1 MHz limits)
• Instantaneous dynamic range: >80 dB
• Spurious measurement capability: Better than -60 dBc on full span sweeps
• Internal frequency counter for signal identification
• FM demodulator with built-in loudspeaker
• Tracking generator function: Up to 46 GHz
Synthesized Source
• Frequency range: 4 GHz to match spectrum analyzer input range
• Output level: -5 dBm (minimum)
– Key Features
• Simultaneous insertion loss and return loss measurement
• Network characterization of components and systems
• Coupled analyzer parameters (resolution bandwidth, sweep speed, video filter, input attenuation) with manual override capability
• Low distortion front end with wideband oscillators for high sensitivity at microwave frequencies
• Continuous full band sweeps for harmonic and spurious identification
• Resolution capability: 1.82 cm (Model 6200), 1.37 cm (Model 6203) for equal amplitude discontinuities
– Typical Applications
Design and validation of RF/microwave components and subsystems; manufacturing and installation verification; field maintenance and troubleshooting; harmonic and spurious analysis; pass-band and stop-band characterization.













