Re: uBITx v5 - with mods



Fantastic on your homebrew scratch build. Based upon all the clues, I wonder if there may be a missing connection at the crystal filter. Either try injecting a signal before and after it. If no signal source, use a wire or antenna to grab some signals and noise at the frequency. Also you might bypass that filter with a wire. If the crystal filter is the issue, then try pressing on each crystal. A smaller chance your BFO is way off, not letting signals through hear that become low enough frequency audio.

Its likely one or two simple things. Yes even touching the input of the audio should cause some buzz.

The ubitx purposely has minimal gain to make an excellent receiver. Audio level to drive a speaker is scarce even when its working well.


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