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different value you resistors give you different volume levels ...you can put a 1/2 watt 80 to 150 ohm resistor on the ground points of the PA and the Ex.speaker jacks on the bottom of the board . S-K
Try 47 Ohm. You can also put a switch in line to shut it off, or put a potentiometer inline to make variable talkback. You can do this on all these Uniden and Cobras but it doesnt work on the XPorts.
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