How to graph automated tests?

QA40x
1

I have the QA403 and want to make a distortion vs. frequency graph. I see the automated test is running in the display on the right, but no curves show in the Graph tool window. Can’t find instructions on how to set up the graphing. Thanks

2

The graph appears at the end, not during. It asks you which graph to add the trace to if there is more than one graph open.

3

Thanks for the response. It runs through the test, stops and nothing shows. I’m sure I must be doing something wrong.

4

Hi @Johnr6697

Can you try this:

  1. Close and Re-start the app
  2. File->New Settings to put the QA40x into a known state
  3. Connect QA40x into loopback (L+ OUT to L+ IN, short L- IN)
  4. Automated Tests → Amp Frequency Response
  5. In the upper left, note the “Defaults” button. Press that to load each filed with a default
  6. Change Stop Level [dBV] to be -10

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Then click OK and you should see a yellow trace at -10 dBV marching across the screen. When that gets to 20 kHz, you’ll be immediately presented with a plot:

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Can you confirm you can replicate the above?

5

Yes! This worked. Thank you for the help.