FOR RESPONSE

FOR ISOLATION

POSSIBLE

ADAPTERS

LOAD LOAD

pg613e

Figure 5-5.

Standard Connections for a Response and Isolation Error-Correction for Transmission

Measurements

Note If you will be measuring highly reflective devices, such as filters, use the test device, connected to the reference plane and terminated with a load, for the isolation standard.

10. ‘Ib help remove crosstalk noise, set the analyzer as follows:

a. press LAvgl:~~~~~~~~~~

,,,, /..,,,, .,,

,,,. . -‘E>.

.“:.::.,(.:.:.,

 

ad enter at leaf, four times more

~~~~~~~~~~~;~

>

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

s....s,.....................................,,. ./;,.......,i......i

.........s i::.::::: .

..s....S.......il

 

averages than desired during the device measurement.

:, ...... ~.““:.:.:.:::::.

:::::.:....

,:,,-

::::,,,.,

:; ; .:..-::::.:.:.:...:.:.:.:.:.::.:...:.:.~.~.:.:.:.:.~...:.::.~.:.~;:.:.:.::

 

 

 

~::::,::::~,:,::~

 

 

 

 

 

b. ~~~~ 1Cal] s#$fj~ :~~~~~~~~~ to eli&.,ate one mosst& path.

,.,.....,.................... .::.:::.:..:..

.:

.:

............i.~..~...~...~...~.~.~.~.~.~.~

i:..::.::.. .:.c::..

 

 

 

11.‘Ib measure the calibration standard, press:

12.Return the averaging to the original state of the measurement. For example, reduce the averaging factor by at least four times or turn averaging off.

13.To compute the isolation error coefficients, press:

The analyzer displays the corrected data trace. The analyzer also shows the notation Cor at the left of the screen, indicating that the correction is switched on for this channel.

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.This completes the response and isolation correction for transmission measurements You can connect and measure your device under test.

Optimizing Measurement Results 5-17

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Image 239
HP 8753E manual Ad enter at leaf, four times more