Agilent/Keysight 85542B

The Agilent/Keysight 85542B is a 40 GHz Thermal-Vacuum (TVAC) Electronic Calibration (ECal) module designed for calibration refresh in specialized thermal-vacuum environments. Operating across 500 MHz to 40 GHz, this CalPod delivers re-correction capabilities with amplitude accuracy of ±0.05 dB, phase accuracy of ±1.5°, and directivity performance at -38 dB. The module simplifies multi-port and multi-path calibration by enabling one-port calibrations on each port of a Device Under Test, eliminating the need for traditional recalibration in complex setups.

Technical Specifications

• Frequency Range: 500 MHz to 40 GHz


• Operating Temperature: -30 °C to +80 °C


• Amplitude Re-correction: Typically ±0.05 dB


• Phase Re-correction: Typically ±1.5°


• Directivity Re-correction: Typically -38 dB


• Connectors: 2.92 mm

Key Features

• Operates within thermal-vacuum chamber environments


• Supports control of up to 48 CalPods with simultaneous recalibration of up to four units


• Includes optional 85556A fan-out cable splitter for multi-CalPod management


• Requires 85523B CalPod Controller and CalPod firmware


• Compatible with Keysight PNA firmware version A.09.33.05 or later (Options 302 and 304 no longer required)

Compatibility & Integration The 85542B integrates with the Keysight PNA family of network analyzers: PNA-X N524xB, PNA N522xB, PNA-L N523xB, and PXIe M937xA vector network analyzers. Essential accessories include the 85523B CalPod Controller, CalPod firmware for PNA or M937xA platforms, and drive cables. The 85556A fan-out cable splitter is optional for controlling more than four CalPods simultaneously.