Agilent / Keysight E9327A E-Series Peak and Average Power Sensor, 50 MHz to 18 GHz

The Agilent/Keysight E9327A is an E-Series peak and average power sensor delivering precise power measurements across 50 MHz to 18 GHz. Engineered for demanding RF and microwave applications, this sensor simultaneously acquires peak and average power data - critical for characterizing complex modulated signals. It performs time-gated peak, average, and peak-to-average ratio measurements with a 5 MHz video bandwidth optimized for W-CDMA and cdma2000 formats.

The E9327A measures across a wide dynamic range, supporting normal mode operation from −45 dBm to +20 dBm and average-only mode down to −60 dBm. It handles multi-tone, spread spectrum (CDMA, W-CDMA), digital television, pulsed, and TDMA signals, including +20 dBm average power with +13 dB peaks when peak pulse duration is less than 10 microseconds. Calibration factors, linearity, temperature, and bandwidth corrections are stored on-board and downloaded to compatible power meters at connection.

The sensor connects via precision Type-N connector and delivers up to 1000 corrected readings per second via GPIB, making it suitable for high-speed production test and research environments requiring dual-parameter power characterization.

Technical Specifications

• Frequency Range: 50 MHz to 18 GHz


• Power Measurement Range (Normal Mode): −45 dBm to +20 dBm


• Power Measurement Range (Average Only Mode): −60 dBm to +20 dBm


• Dynamic Range: Up to 80 dB maximum (sensor dependent); 70 dB normal mode, 85 dB average-only mode


• Video Bandwidth: 5 MHz


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


• Connector: Precision Type-N (standard)


• TTL Output: High = 4.8 V max; Low = 0.2 V max


• TTL Input: High = 3.5 V to 5 V; Low = −0.3 V to 1 V


• Weight: Approximately 5 lbs

Key Features

• Peak and average power measurement with time-gated capabilities


• Peak-to-average ratio calculation for modulated signal analysis


• On-board EEPROM storage of calibration and correction factors


• Automatic compensation download to compatible power meters


• Sensor-specific calibration data and reflection coefficient uncertainty per ISO Guide (95% confidence)


• Handles pulsed signals with peak duration constraints

Typical Applications

• W-CDMA and cdma2000 wireless signal characterization


• Multi-tone and spread-spectrum signal analysis


• Digital television signal measurement


• TDMA and pulsed RF signal evaluation


• Production test requiring high-speed measurement acquisition

Compatibility & Integration

• Compatible with EPM-P series power meters (E4416A, E4417A)


• Compatible with P-Series power meters (N1911A, N1912A)


• GPIB interface for remote control and fast data collection


• TTL signaling for external trigger and synchronization