727 DV MODE OPERATIONN Break-in communicationThe break-in function allows you to break into a conversa-tion, where the two original stations are communicating withcall sign squelch enabled.qWhile receiving an another station’s communication, pushand hold [RX©CS](8) for 1 sec. to set the communicatingstation’s call sign.• When a call sign has not been received correctly, error beepssound and no call sign is set. Try to set the call sign of a com-municating signal again, or set the call sign manually.w Enter “BK” in DV SET mode.