This calibration guide provides procedures for testing all of the HP 837XX Series synthesizers’ warranted specifications. All required manual and automated acljustment procedures are also provided for these instruments. Certain terms and figures that are used throughout this document are meant to apply to the HP 83711A, 83712A, HP 83711B, HP 83712B, HP 83731A, HP 83732A, HP 83731B, HP 83732B. The term synthesizer applies to all of these models.