HP 8753E manual TRMError-Correction

11. Connect a load to PORT 2, and press:

12. Connect the load to PORT 1, and press:

13. You may repeat any of the steps above. There is no requirement to go in the order of

steps. When the analyzer detects that you have made all the necessary measurements, the
,	.; .._	.. ...::::;.;.
message he m show PRESS ‘DONE’ IF FINISHED WITH CAL. press ~.~~~~:~~~~‘.
..i....A .......:	:::.i ./;;........;	~~..i.~ T ..A... i..

The message COMPUTING CAL COEFFICIENTS will appear, indicating that the analyzer is performing the numerical calculations of error coefficients.

Note You can save or store the measurement correction to use for later measurements Refer to the “Printing, Plotting, and Saving Measurement Results” chapter for procedures.

14. Connect the device under test. The device S-parameters are now being measured.

TRMError-Correction

1. YOU must have a TRM cabration kit defined and saved in the ‘~~~~~~~, as shown in

“Modifying Calibration Kit Standards, n located later in this section.

Note This must be done before performing the following sequence.

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2. press [caL]l ~~~~~~~l !m .~~~~~~

.::::::.. <:” :;.z.;:>y ~~, .,,. .,.,.,. _ _ / ,. / _ .:.:.:.:....

j$& :gJjr f-j ~~ ~~~~~~~~~

::.::... ..::::::: ..:::::~,.:::::::::.:::::::::.:,.:::::.:.:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::.:::::~,:~: ::,, .i;~~:~;~.:~~~~.

L.22;;::;

::... iii / ..,_.. s .._ .:....: : i:.>;z:: .._ ._ ..~ ................;.=;;=;,.~;~.~~~.~~~... ...... .. ....: : :::

~~~~~~~~~~~~,.

..A.. i.,.,.,.i.,.,.,.,.,.,.,.,. i.,.,.,.,.,.,.,.,. iii,.,.,.,.,.,.,.,.,...,.,.,.,...,........... _;;; ............_........=. ..:.........

3.To measure the “TRM THRU,” connect the “zero length” transmission line between the two test ports

4.To make the necessary four measurements, press:

~~~~.
;.;>:.:.:.:.>..:.~	..__;~((.~;~;~~~~~~;;;;; ,.,.,i	_

5. To measure the “TRM SHORT, n connect the short to PORT 1, and press:

.+:(:,,.,.;.;.~.~.,,.;. :.:::.;.:.:.: :.:.:.:..:y::.::	.....‘:~.:::::::::::::::,:::::::::::::::~~:::.:...:.:.:.:~~	,,,..::::::::::.:::~.:::..”		i,, :
:,:,. _ _ _ _
~~~~~~~~~~~~~::,‘,
a;.:.:.e:......~:~::.~~~::~~:.~~~:.:.~;~~~~~~~:.:.:.:.:.:.:.:~.:.:.:.:.:.:.:.:.:.:...:...:..;		...;	_	_.... _

6.Connect the short to PORT 2, and press:

;..:::...,.,...a.:.....:..:::::.....~....:~::::::::::.:::::~,~.::::::::::..::::::.:.:: .../:.:.:..: ii;..,.....,,,...,.,.,,..__/

~~~~~~~~~~~5

Note If loads can be connected to both port 1 and port 2 simultaneously, then the following TRM load measurement can be performed using the

~~~~~~~~~ sof&ey.

.,

7.To measure the “TRM LOAD,” disconnect the short and connect the TRM load to PORTl. Refer to “Choosing Calibration Load Standards.”

Optimizing Measurement Results 5-25