Update: The “Vox Transistor” mod by Colin G4EML is now up on this site here: http://www.gorhudson.com/gor/baofeng-uv-5r-modulation-fix/ This is a hardware modification for the Baofeng UV-5R.  It deals with surface mount components of 0603 and 0402 size and you will need a very small soldering iron [...]