Agilent/Keysight E9304A

The Keysight E9304A is an average power sensor engineered for precise power measurements across an 80 dB dynamic range, from -60 dBm to +20 dBm. Designed for integration with Keysight EPM, EPM-P, and P-series power meters, this sensor delivers accurate results across modulation formats from very low frequency through microwave bands. DC coupling provides excellent low-frequency performance, making it suitable for EMC/EMI testing and general RF characterization.

The Type-N male connector ensures direct compatibility with standard test equipment.

Technical Specifications

• Frequency Range: 9 kHz to 6 GHz (standard); 9 kHz to 18 GHz with Option H18


• Power Range: -60 dBm to +20 dBm (1 nW to 100 mW)


• Dynamic Range: 80 dB


• Measurement Type: Average Power


• Calibration Factor Uncertainty: ±1.6% to ±2.2% (high power path, 9 kHz to 18 GHz)


• Input Coupling: DC coupled


• Maximum DC Voltage: 5 Vdc


• Operating Temperature: 0°C to 55°C


• Connector: Type-N (m)

Key Features

• 80 dB dynamic range for measurements from 1 nW to 100 mW


• DC-coupled input for VLF and low-frequency power characterization


• Calibration factors stored in EEPROM


• Extended frequency coverage to 18 GHz via Option H18


• Wide modulation format support

Typical Applications

• EMC/EMI radiated immunity testing per IEC61000-4-3


• Transmitter power measurements


• Receiver sensitivity characterization


• VLF to microwave band power assessment

Compatibility & Integration The E9304A integrates directly with Keysight power meters including EPM Series (E4418B/19B, N1913A/14A, N1913B/14B), EPM-P Series (E4416A/17A), and P-Series (N1911A/12A) instruments.