The Marconi IFR Aeroflex 6848A is a multi-function RF and microwave system analyzer combining a synthesized source, scalar analyzer, and spectrum analyzer in a single instrument. It characterizes RF and microwave components and systems with insertion loss, return loss, and scalar network measurements from 1 MHz to 3 GHz, plus spectrum analysis extending to 20 GHz. The internal synthesized source operates in multiple modes: CW output, swept source for scalar measurements, tracking generator with spectrum analyzer, and offset tracking for frequency translation device analysis. EEPROM-corrected scalar detectors deliver >80 dB insertion loss measurement capability. The spectrum analyzer provides up to 80 dB instantaneous dynamic range with resolution bandwidths from 3 MHz to 1 kHz, spurious performance better than -60 dBc on full span sweeps, and integral frequency counter for signal identification. A full-range tracking generator with offset tracking capability supports mixer and upconverter/downconverter measurements. FM demodulation with built-in loudspeaker enables identification of interfering transmissions. Real-time transmission line fault location accuracy reaches 0.1%.
Technical Specifications
• Scalar Analyzer Frequency Range: 1 MHz to 3 GHz
• Spectrum Analyzer Frequency Range: Up to 20 GHz
• Scalar Dynamic Range: >80 dB insertion loss; 6230A series detectors offer typically 85 dB (-65 dBm to +20 dBm)
• Spectrum Analyzer Instantaneous Dynamic Range: >80 dB
• Resolution Bandwidth Filters: 3 MHz to 1 kHz
• Spurious Performance: Better than -60 dBc on full span sweeps
• Synthesizer Frequency Range: 1 MHz to 3 GHz integrated; VCOs for frequencies above 3 GHz
• Frequency Resolution: 1 Hz
• Harmonic Performance: <-55 dBc
• 3rd Order Intermodulation Intercept: Excellent
• Transmission Line Fault Location Accuracy: 0.1%
– Key Features
• EEPROM-corrected scalar detectors for accurate characterization
• Integral frequency counter for precise signal identification
• FM demodulator with built-in loudspeaker
• External FM input via rear panel; optional internal FM modulation
• Optional increased output power from 3 to 24 GHz
• Low phase noise synthesized source
– Typical Applications
• Cable, filter, and attenuator performance testing
• Amplifier characterization and network analysis
• Frequency translation device measurements
• Transmission line fault location
– Compatibility & Integration
The 6848A integrates with 6230A series scalar detectors and operates within the 6840 Series Microwave System Analyzer family.
