Yeah, tell us everything about the microphone!!!
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On Mar 9, 2025, at 12:02, WF4RC Carroll via groups.io <WF4RC@...> wrote:
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I have a new sBitxV3 board only. Everything is working except the Mic input. I started experimenting with some microphone I had and the recorded transmission has lots of noise and very low audio. I measure 2.1v on mic input tip. I think it should be 5v. Can anyone guide me as to what the issue may be and where I should look. Here are my measurements/ calculations.?