Agilent / Keysight E9321A E-Series Peak and Average Power Sensor, 50 MHz to 6 GHz

The Agilent/Keysight E9321A is a peak and average power sensor engineered for RF and microwave power measurements across 50 MHz to 6 GHz. It delivers simultaneous peak and average power detection with a 300 kHz video bandwidth optimized for time-gated measurements on TDMA wireless formats including NADC, GSM, and EDGE. The sensor achieves up to 1000 corrected readings per second via GPIB, supporting rapid characterization of signal dynamics and power quality in wireless communications, radar systems, and R&D environments.

Technical Specifications

• Frequency Range: 50 MHz to 6 GHz


• Power Range (Normal Mode): −50 dBm to +20 dBm


• Power Range (Average Only Mode): −65 dBm to +20 dBm


• Video Bandwidth: 300 kHz


• Measurement Speed: Up to 1000 corrected readings per second (GPIB)


• Connector: Precision Type-N


• Data Storage: Calibration factors, linearity, temperature, and bandwidth correction (EEPROM)


• Weight: 5 lbs

Key Features

• Dual-mode operation: peak and average power measurements in a single sensor


• Fast measurement cadence supports real-time signal analysis


• Internal EEPROM stores calibration and correction factors


• Precision Type-N connector minimizes insertion loss

Typical Applications

• Time-gated power analysis on TDMA mobile standards (NADC, GSM, EDGE)


• Peak-to-average ratio characterization for modulation quality assessment


• Wireless communications system validation and optimization


• Radar system power monitoring


• Research and development of RF/microwave circuits

Compatibility & Integration The E9321A operates with EPM-P Series (E4416A/17A) and P-Series (N1911A/12A) power meters. Peak, peak-to-average ratio, and time-gated measurements are supported on EPM-P Series instruments. Average power measurements are available on EPM Series power meters. Connection requires an E9288A, B, or C cable (sold separately).