Saving the modilkd calibration constants

If you made modifications to any of the standard detlnitions, follow the remaining steps in this procedure to assign a kit label, and store them in the non-volatile memory. The new set of standard dehnitions will be available under W$I$I&J&~,. until you save another user kit.

:... /

 

.,~~~.~~.~~ . Use the front panel knob to move

13. Press (GJ &$&~~~. ;#f#$& ~&@?$I&%~:,,

. . . . . . . . . . . . .i

..:

..i........I ~iIi

iii.;..

the pointer to a character and press X&LI%?X

~XJ&f”F&.

.

....../.. //..

 

i i..;

i

Note To enter titles, you may also use the optional external keyboard.

Note You may also save the user kit to disk, by selecting the particular kit at the time you save a measurement result.

Modifying !L’RL Standards

In order to use the TRL technique, the calibration standards characteristics must be entered into the analyzer’s user defined calibration kit.

This example procedure shows you how to dellne a calibration kit to utilize a set of TRL (THRU, REFLECT, LINE) standards. This example TRL kit contains the following:

nzero length THRU

n“flush” short for the REFLECT standard (0 second offset)

n50 ohm transmission line with 80 ps of offset delay for the LINE

Note Hewlett-Packard strongly recommends that you read product note 851OSA before you attempt to modify the standard defmitions. The part number of this product note is 5091-3645E. Although the product note was written for the HP 8510 family of network analyzers, it also applies to the HP 8753E.

For a discussion on TRL calibration, refer to “TRIJLRM Calibration” in

Chapter 6, “Application and Operation Concepts.”

Modify the Standard Definitions

Press the following keys to start modifying the standard definitions:

To select a short, press @ @. (In this example, the REFLECT standard is a SHORT.)

Press the following keys:

Optimizing Measurement Results 6-28

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HP 8753E manual Modifying !L’RL Standards