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Can anyone tell me where to put the resistor to get talkback in my 520XL? I run it on my bike and I need to be able to hear myself in my helmet headsets.
if it has a EX.Speaker and PA plugs ? usually you can just put a 68 ohm resistor from ground to ground on those on the bottom side of the board , if it doesn't you can try the speaker ground to ground on the radio using the same 68er , there are a few other ways but IM not up on that radio. Good luck to you,
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