The Marconi IFR Aeroflex 6847 is a dual-function RF and microwave analyzer combining scalar and spectrum analysis in a single instrument. The scalar analyzer operates from 10 MHz to 20 GHz for simultaneous insertion and return loss measurements, while the spectrum analyzer extends coverage to 26.5 GHz (usable to 30 GHz). A synthesized source provides CW output, swept stimulus for scalar characterization, and tracking generation for network analysis, with optional offset tracking for frequency translation device measurements.
Technical Specifications
Scalar Analyzer
• Frequency range: 10 MHz to 20 GHz
• Simultaneous insertion and return loss measurement
• EEPROM corrected detectors
• High dynamic range with tuned receiver
Spectrum Analyzer
• Frequency range: 10 MHz to 26.5 GHz (usable to 30 GHz)
• Selectable frequency span from zero to full span
• Resolution bandwidth: 1 kHz to 3 MHz
• Instantaneous dynamic range: >80 dB
• Spurious measurement performance: <-60 dBc on full span
• Integrated FM demodulator and loudspeaker
• Integral frequency counter with autotune mode
Synthesized Source
• Frequency resolution: 1 Hz across five frequency bands
• Phase noise: Low
• Harmonic performance: <-55 dBc
• Power sweep capability for amplifier gain compression testing
• Offset tracking for mixer and converter analysis
General Specifications
• Frequency extension to 110 GHz using external waveguide mixers
• Step attenuator options: 70 dB (20 GHz) or 90 dB (26.5 GHz)
• Field-replaceable RF connectors: N(f) or 3.5 mm(f); 2.92 mm(f) available
– Key Features
• EEPROM corrected detection for measurement accuracy
• Dual-band stimulus for both scalar and spectrum measurements
• Wideband oscillators enable high sensitivity at microwave frequencies
• Third-order intermodulation intercept performance
• Frequency offset and multiple tracking simplify translation device characterization
– Typical Applications
• Component and system amplitude characterization
• Insertion and return loss measurement
• Amplifier gain compression analysis
• Mixer and converter frequency translation assessment
• Spurious signal detection and analysis
• Network analysis with offset stimulus
– Compatibility & Integration
Precision RF connectors support field upgrade paths. External waveguide mixers enable measurements beyond native 26.5 GHz capability.
