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Shielded high copper braid content, stranded copper center amplifier keying cable for the new BG2FX FX-4CR or Xiegu G1M. Use this cable to key (activate) your external power amplifier. 36"
If you need a BUFFERED keying interface, see our eBay store for the RBI-1, you can use this cable with our RBI-1A.
RBI-1A sold separately
The FX-4CR or G1M keying pin provides a closure to ground on transmit.