Marconi IFR Aeroflex 6824 – 24GHz Scalar Analyzer

The Marconi IFR Aeroflex 6824 is a three-input scalar analyzer engineered for precision microwave and RF component characterization across 10 MHz to 24 GHz. It combines a low-phase-noise synthesized signal source with EEPROM-corrected scalar detectors to deliver simultaneous insertion and return loss measurements with accuracy approaching power sensor performance. The instrument supports transmission line fault location with 0.1% accuracy, making it equally suited to laboratory benches and field deployments.

– Technical Specifications

Frequency Range: 10 MHz to 24 GHz

Signal Source
• Synthesized source with 1 Hz frequency resolution
• Integrated RF synthesizer for 1 MHz to 3 GHz
• VCOs for frequencies above 3 GHz
• Harmonic performance <-50 dBc (or <-55 dBc with filtering)
• Power sweep capability for gain compression testing
• CW mode for local oscillator substitution
• Optional step attenuators for low output power settings
• Optional increased output power from 3 to 24 GHz
• External FM input or internal FM/pulse modulation

Scalar Analyzer
• Three-input configuration for network characterization
• Simultaneous insertion and return loss measurement
• Individual detector characterization for linearity and frequency response
• Input offset adjustment: 0.01 dB steps, -99.99 dB to +99.99 dB
• Autotesters with high directivity for return loss
• AC Detection for fault location with interfering signals present
• Peak find and next peak left/right features for discontinuity location
• Display trace memory for relative power and comparative analysis

Transmission Line Fault Location: Real-time operation with 0.1% accuracy

Interfaces & Data Transfer
• IEEE 488.2 GPIB compliance
• Full 401 data points transferable in typically <50 ms
• Individual data points readable in typically 10 ms
• 3.5-inch disk drive for results storage

Physical & Environmental
• Dimensions: 230 mm (H) × 430 mm (W) × 570 mm (D)
• Weight: 16 kg (35 lb)
• Operating temperature: 0 to 50°C
• Operating humidity: Up to 93% RH at 40°C
• Modular design with field-replaceable modules

Power Supply
• Autosensing: 90 V to 265 V AC, 45 Hz to 65 Hz; also 90 V to 110 V AC, 400 Hz
• Consumption: 150 W

– Key Features

• Scalar detector measurement accuracy comparable to dedicated power sensors
• Real-time transmission line fault location with 0.1% precision
• Low-phase-noise synthesis for stable, repeatable measurements
• Modular construction enables rapid service and field deployment
• Ruggedized case with secure handles for mobile operation

– Typical Applications

• Filter insertion and return loss characterization
• Amplifier gain and compression testing via power sweep.
• Cable and transmission line discontinuity detection.
• Component fault location in installed systems.

– Compatibility & Integration

Full GPIB data transfer integration via IEEE 488.2 allows automated measurement suites and remote system control. High-speed data point retrieval (10 ms typical) supports real-time feedback in production environments.