Step 2. Perform The Self-Calibration Routines - HP 8591C User Manual

Getting Started
Setup for Cable TV Measurements
Allow the analyzer to warm up for 30 minutes before performing the following steps.
For the analyzer to meat its specifications and characteristics, the self-calibration routines should be performed periodically or
whenever the ambient temperature changes. Sea the operating manual for the analyzer to determine how often the self-calibration
routines should be oarformed.
Attach the calibration cable from the CAL OUT connector to the INPUT connector with the appropriate adapters
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