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Re: #qmx High Noise on all bands, screwy receive and bad diagnostics #qmx

 

Did you make sure the radio is in CW mode??

73 Hans G0UPL



On Mon, Mar 11, 2024 at 10:25?AM Evan Hand <elhandjr@...> wrote:
Hi Martin,

Have you checked Q508?

If you have access to an oscilloscope, you could verify that clock0 and clock1 are 90 degrees out of phase. The same is true for the outputs of IC405 and IC406.

If that checks out, then I suspect the codec (IC407) has an issue.

Hans has a troubleshooting page on his website:



73
Evan
AC9TU

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