Author Topic: Help needed. Advantest R3172 tracking generator 16MHz offset frequency  (Read 325 times)

0 Members and 1 Guest are viewing this topic.

Offline Samogon

  • Frequent Contributor
  • **
  • Posts: 446
  • Country: us
Posted it in test gear but looks like it is more appropriate place for this topic.

When i try to use TG on the unit it is sweeping +16MHz of center frequency set.
I found it when tried to setup some test. And found that it will not track at all.
I connected oscilloscope and see that it outputs proper amplitude signal but 16MHz about setting.
Also connected counter and it shows same shift i guess it is exact 16MHz measured with zero span set.
This SA had dead battery so i have setup new and calibrated, unit passed self calibration no problem.
Looks like some programming error.
As i understand TG uses same span as spectrum analyzer uses to sweep. But how it is shifted 16MHz up?
Can someone give advise where to start please?

Thank you.

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo