Aeroflex 6825A Microwave Scalar Analyzer

The Aeroflex 6825A Microwave Scalar Analyzer delivers scalar network measurements from 10 MHz to 46 GHz. This integrated instrument combines a synthesized signal source with precision scalar analysis capability, enabling efficient characterization of transmission lines, microwave components, and complete systems without the complexity of vector network analyzers. The 6825A is engineered for aerospace, defense, telecommunications, and communications testing where accurate scalar measurements and real-time diagnostics are critical.

Technical Specifications

• Frequency range: 10 MHz to 46 GHz


• Synthesized source with 1 Hz frequency resolution


• VCOs for frequencies above 3 GHz; integrated RF synthesizer for 1 MHz to 3 GHz


• Harmonic suppression better than -50 dBc from 70 MHz to 24 GHz


• Low phase noise architecture Measurement & Detection


• Dynamic range: +5 dBm to -65 dBm


• Linearity: ±0.2 dB


• Measurement accuracy: ±2%


• EEPROM-corrected scalar detectors


• Four display traces; three standard detectors (seven available)


• Real-time transmission line fault location with 0.1% accuracy Power & Modulation


• Optional increased output power from 3 to 24 GHz


• Optional step attenuators for low output power testing


• Power sweep capability for amplifier gain compression characterization


• Internal modulation generator (FM & Pulse) available (Option 023)


• Internal pulse modulator option (Option 025B)


• External FM and pulse modulation support


• CW mode for local oscillator substitution Physical


• Weight: 35 lbs


• Dimensions: 24 × 18 × 16 in


• Operating temperature: +5 to +45°C


• Storage/transportation temperature: -40 to +71°C


• Operating humidity: up to 93% RH at +40°C


• Maximum operating altitude: 4570 m

Key Features

• Scalar measurement approach reduces test complexity and cost versus VNA solutions


• Multiple frequency versions available: 3 GHz, 8.4 GHz, 20 GHz, 24 GHz, 40 GHz, and 46 GHz upper limits


• Calibration services available


• Comprehensive accessory ecosystem

Typical Applications

• Transmission line and component testing


• Microwave sub-assembly characterization


• Amplifier and receiver evaluation


• Communication system calibration


• Aerospace and defense subsystem validation