Agilent/Keysight 84801A

The Agilent/Keysight 84801A is a coaxial power sensor engineered for precise RF and microwave power measurements from 10 MHz to 18 GHz. This thermocouple or diode-based sensor delivers measurement capability across a -70 to +20 dBm power range and integrates directly with Keysight power meters via Type-N connector. Calibration factor data stored in the sensor's EEPROM auto-downloads to eliminate manual entry errors.

Low SWR design minimizes mismatch uncertainty. Dual-range power architecture provides enhanced sensitivity to signal fluctuations.

Technical Specifications

• Frequency Range: 10 MHz to 18 GHz


• Power Range: −70 to +20 dBm


• Sensing Technology: Thermocouple and diode sensing elements


• Connector: Type-N coaxial interface


• Calibration: Factory CF data label on sensor cover; EEPROM auto-download supported


• SWR: Low, optimized for measurement accuracy


• Dual-Range Power: Delivers greater sensitivity to signal variations

Key Features

• Type-N connector with low SWR design reduces mismatch error


• EEPROM-based calibration factor auto-download eliminates manual configuration


• Dual-range architecture extends dynamic measurement capability


• Sensor cable connection supports integrated measurement workflows


• Serial number and manufacturing date code markings for traceability


• Protective earth ground connection recommended for operator safety

Typical Applications

• RF and microwave power measurement


• Broadband signal characterization from L-band through Ku-band


• Power meter integration within test and measurement systems

Compatibility & Integration Backward compatible with Keysight P-Series, EPM-P Series, and EPM Series power meters including E4418B, E4419B, E4416A, and E4419B. Operates within BenchVue software environments when connected to compatible power meters. Requires supported sensor cable for power meter connection. Connector torque must be applied to the nut only; avoid applying force to the sensor body to prevent damage.