Interface between PC and a Baofeng
Sources:
- Speaker Microphone Pin Out http://www.miklor.com/COM/UV_Technical.php
- NBEMS using a Baofeng UV-5R on the cheap http://imnota.xenopho.be/2013/09/nbems-using-baofeng-uv-5r-on-cheap.html
- schematic of my simple audio interface for the UV-3R and UV-5R https://www.nonstopsystems.com/radio/hellschreiber-software.htm