Preselector Tune Out (Option AYZ) Adjustment

This adjustment applies only to analyzers equipped with external mixing (Option AYZ).

This adjustment sets the preselector tune out voltage to a nominal value of 1.5 volts/GHz. To adjust the tune voltage the PSA is placed in external mixing mode using a harmonic number of -10. The PSA frequency offset is set to 321.4 MHz so that the PSA center frequency will be exactly 10 times the 1st LO frequency. A DVM is connected to the PRE-SEL TUNE OUT port and the tune voltage is adjusted while the PSA 1st LO is tuned from 3.0 GHz to 6.6 GHz.

This adjustment saves an output file which lists the corrections that were stored in the instrument. The output file is saved at this location:

<drive>:\Program Files (x86)\Agilent TME\PSA\Output\<Model_Serial#>

Required Test Equipment

Test Equipment

Model Number

Digital Multimeter

3458A

Cable, BNC

8120-2582

BNC to Banana adapter

1251-2277

Connection Setup