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No signal generated above 140MHz #82

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supergps1 opened this issue Mar 26, 2023 · 0 comments

supergps1 commented Mar 26, 2023

I have a SAA2 version. Recently it stopped generating any signal above 140MHz. Took me a long time to figure this out.

I am not sure if this issue occured after a firmware update.

Now, in code, I see that ADF4350 is used to generate signals above 140MHz, and Si5351 is used below it.

I also see that there is a code to power down adf4350 below 140MHz.

This is essentially a request to help for debug. two parts:

is there a known issue in keeping adf4350 powered up even when required freq is below 137/140MHz? Can I keep it powered up always wiithout negatively affecting measurements?
Is there a way to identify if I've shot adf430?

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