Keysight
The Keysight E8257D is an analog signal generator. The Keysight E8257D has a maximum frequency of 70 GHz. The Keysight E8257D has a maximum output power of +26 dBm.[1]
Plate 01Introducing Keysight’s E8257D PSG Analog signal generator
Plate 02Keysight E8257D 40GHz Signal Generator Test Demo
Plate 03TSP #167 - Teardown & Repair of an Agilent E8257D 250kHz - 31.8GHz PSG Analog Signal Generator
Plate 04Agilent Keysight E8257D PSG Microwave Signal Generator Opts
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The following facts about the E8257D are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the E8257D are on record.
Answerable by: OEM historical records or a trade-press announcement
No publicly documented variants, configuration options, or revision breakpoints of the E8257D are on record.
Answerable by: an OEM product catalog or an engineer who ordered or specified the tool
The control-system platform and OS era of the E8257D are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the E8257D are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the E8257D is not on record.
Answerable by: an OEM datasheet or a fab qualification report
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Last updated Oct 5, 2026.