HP 8753E manual Error-Correction Stimulus State

‘I&ble 5-2. Purpose and Use of Different Error-Correction Procedures

ca-rection	Corresponding			Errors Carmeted		Stamkrd
Procednre	Measurement					DWiCeS
Response	Transmission	or	reflection	Frequency	response.	Thru for transmission, open
	measurement	when the highest				or short for reflection.
	accuracy is not required.
Response & isolation	Transmission of high insertion loss			Frequency	response plus	Same as response plus
	devices or reflection of high return			isolation in transmission or		isolation standard. (load)
	loss devices. Not as accurate as			djrectivity in reflection.
	l-port or 2-port correction.
sl1l-pofi	Reflection of any one-port device			Dire&v&y,	source match,	Short and open and load.
	or well terminated two-port			frequency response.
	device.
522 l-port	Reflection of any one-port device			Directivity, source match,		Short and open and load.
	or well terminated two-port			frequency	response.
	device.
Full 2-port	Transmission	or	reflection of	Directivity,	source match,	Short and open and load and
	highest t3cmraq		for two-port	load match, isolation,		thru. (2 loads for isolation)
	devices.			frequency	response,
				forward and reverse.
!lXL*/LR~	Transmission	or	reflection when	Dire&vi& isolation,		Thru, reflect, line, or line,
	highest acauacy is not required.			frequency	response.	reflect, match, or thru,
				(forward and reverse)		reflect, match.

Note F’requency response calibration is not as accurate as other calibration methods

Error-Correction Stimulus State

Error-correction is only valid for a specific stimulus state, which you must select before you start a correction. If you change any of the following parameters, you will invalidate the correction and the analyzer will switch the correction off (unless the interpolated error correction feature is activated):

nfrequency range w number of points

nsweep type

The error-correction quality may be degraded (Cor changes to CA), if you change the following stimulus state parameters:

nsweep time

nsystem bandwidth

noutput power

Note	If you activate averaging, the analyzer may increase the sweep time if more
	time is needed to calculate the averages. If the sweep time changes, you will
	see Cor change to CA. The number of averages does not affect a sweep cycle
	time. Therefore, if you use averaging for error-correction, leave it on for the
	measurement and set the averaging factor to 1, for a faster sweep.

Optimizing Measurement Results 5-5