[Jim Clark]

Here are a couple of fast and dirty repeaters that can be made from pretty much any pair of two way radios as long as there is VOX available.  The simplex diagram shows the pinouts for Kenwood type I/O plugs, but this same output is used on Wouxon, Baofeng and others.  VOX sensitivity and audio volume must be tweaked to create a clear and reliable signal.  A 600Ohm audo matching transformer is easily obtained and may not be essential, but it protects both radios from potentially different DC bias on the ports. 

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