If you are looking for a solution thats POTA/SOTA friendly, you can try either one of these three options:
1. 3d print a portable microphone such as
2. Buy a cheap microphone (like cheap baofeng microphones) from amazon, snip the exisitng connector and solder a 3.5mm TRS stereo connector.
3. Go for a DIY solution such as the ones seen .?
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The wiring is similar to the uBitx and sBitx radios. The PTT switch connects to ring and sleeve. The microphone connects to tip and sleeve.?
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73,
Ragav