The HP/Agilent 85025E is a coaxial detector engineered for precision power measurement across 10 MHz to 26.5 GHz. It detects both modulated (AC) and unmodulated (DC) microwave signals, delivering ±0.40 dB dynamic power accuracy at 10 GHz and absolute power accuracy of ±0.40 dB at 50 MHz when calibrated at 0 dBm. The detector integrates directly with HP 8757 Series scalar network analyzers for RF characterization, network analysis, and component validation in laboratory and production environments.
Technical Specifications
Frequency & Power
• Frequency range: 10 MHz to 26.5 GHz
• Nominal impedance: 50 Ω
• Maximum input power: +20 dBm (100 mW), ±10 VDC
• AC mode dynamic range: −16 dBm to −65 dBm
• DC mode dynamic range: +10 dBm to −60 dBm
• Return loss: Typically < 2.0 dB; warranted to 17 dB across frequency range
Measurement Performance
• Frequency response (warranted): ±0.5 dB from 10 MHz to 26.5 GHz in DC mode at −10 dBm input
• Dynamic power accuracy: ±0.40 dB at 10 GHz (power change < 30 dB post-calibration)
• Absolute power accuracy: ±0.40 dB at 50 MHz (calibrated at 0 dBm)
Physical
• Connector: 3.5 mm male (SMA-compatible)
• Form factor: Compact probe-style
• Weight: Approximately 100 g
– Key Features
• Dual-mode detection: AC and DC signal measurement
• Wide frequency coverage from 10 MHz to 26.5 GHz
• Tight return loss characteristics for minimal measurement error
• Field-proven accuracy specifications for repeatable results
– Typical Applications
• Scalar network analysis
• RF and microwave power measurement
• Telecommunications system testing
• Radar and aerospace component characterization
• Production calibration and validation
– Compatibility & Integration
Designed specifically for HP 8757 Series scalar network analyzers, including the HP 8757D. Not compatible with HP 8756 or HP 8755 analyzers.
