HP 8517B manual Measurement Calibration

	Measurement Calibration
	After selecting the active test set, complete the system calibration procedure
	as usual. When you select a different test set, make sure that you recall the
	cal set that applies to that test set.
NOTE	Since the cal-set limited instrument state does not include the number of the
	active test set, a cal set which does not apply to the current test set can be
	turned on without displaying the HP 8510C caution messages. However, this
	causes errors in the data displayed because incorrect error coefficients are
	applied to the measured data.
	For convenience, store a hardware-state file and an instrument-state file for
	each combination of test set to cal set. You may also store your hardware
	state file on a tape or disk for future use.
	To change the configuration, recall the appropriate hardware state file. The
	hardware state file:

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sets the address of test set

issues the RF switch command, then

recalls the appropriate instrument state file which

recalls the cal set

HP 8517B S-Parameter Test Set Manual 3-8