I have a Uniden Pro340XL hand held radio and I would like to put a external mic on it. I was going to put a 4 pin plug on the side. What I need is the info on the switch for the PTT, which is TX and REC , I know where to hook the audio wire I just need the other info. If anyone can help I would appreciate it. Also is there any mods to boost the modulation a bit?
Thanks
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Thanks
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