12. Display D1:
Press [
Measurement Data
], [data reg], [D1]. This is the conversion gain and IF
response of the RF analyzer and the 89411A (see figure).
Agilent 89411A correction data
13. Set the Measurement Data back to the function (F5) containing SPEC1/D1.
Now the screen displays the 89410A source signal with any frequency response
contributions of the RF/microware analyzer and the 89411A removed. This
procedure does not correct for RF unflatness contributed by the RF/microwave
analyzer, only IF effects are corrected. However, these effects are the most
important since they vary more significantly over the IF bandwidth (3 MHz in
this example).
14. You should now set the instrument to a configuration appropriate for your
measurement. For example, the source could be turned off, the trigger set
back to free run, the window type set to flat top, and averaging disabled.
Using the Agilent 89411A Downconverter
15-11
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