YOUR radio keying pin must provides a closure to ground on transmit which activates the XPA125B
We make MANY keying cables (separate listings) SEE OUR EBAY STORE or ASK W7RF.
Also see our listing for this interface and cable for your IC-705
Get our cables and buffered interface BEFORE you damage your radio!
INCLUDES:
ICOM IC-705 to Xiegu XPA125B keying cable, 3 feet long
This is high quality, high copper braid RCA connector cable
73, Dan W7RF ( Radiodan )