Agilent E4401-90192 ESA Spectrum Analyzers Calibration Guide Keysight HP E4402B

Agilent E4401-90192 ESA Spectrum Analyzers Calibration Guide Keysight HP E4402B

This is the official Agilent Technologies calibration guide for the ESA Series Spectrum Analyzers, publication part number E4401-90192. It covers the calibration procedures required to maintain measurement accuracy across the ESA product line. The manual is still in its original factory plastic wrap and has never been opened.

Specifications & What's Included

• Manufacturer: Agilent Technologies (Keysight)
• Publication Part Number: E4401-90192
• Document Type: Calibration Guide
• Covers: ESA Series Spectrum Analyzers (ESA-E and ESA-L families, including models such as E4401B, E4402B, E4403B, E4404B, E4405B, E4407B, E4408B)
• Language: English
• Format: Printed hardcopy in binder
• Condition: Still sealed in original plastic wrap — unused

Applications

The Agilent ESA Series are portable and benchtop RF spectrum analyzers covering frequency ranges from 9 kHz up to 26.5 GHz depending on model, and were widely used in RF/microwave design, production test, field service, and military/aerospace applications. Calibration guides like this one provide the step-by-step adjustment and verification procedures needed to bring an instrument back into factory specification — essential for service labs, calibration facilities, and engineers performing in-house calibration or repair. Agilent Technologies was formerly the test and measurement division of Hewlett-Packard (HP), and later became Keysight Technologies; all three names are used by buyers searching for ESA documentation. This guide is a key reference for anyone maintaining, servicing, or recertifying an ESA-series analyzer.