You will need two (2) radios that have the repeater cables installed in them!
The steps are:
1). One radio will be your receive (RX) radio, so you would set this radio freq to the RX freq you want to use.
2). The other radio will be your transmit (TX) radio, so you would set this radio freq to the TX freq you want to use.
3). Plug in the interface board cables (they are marked RX radio and TX radio)
4). Set the volume that is on the interface board to your liking!
That is all!!
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