Hi Ian? That must be correct, it just means pressing PTT doesn't generate any audio. Hence no RF. It presumably just activates RX/TX changeover only but doesn't generate RF.? I can't check this now... But probably someone else can comment?? 73 Hans G0UPL http://qrp-labs.com -------- Original message -------- From: "Ian G4GIR via groups.io" <i.frith@...> Date: Sat, Nov 13, 2021, 12:14 AM To: [email protected] Subject: Fw: [QRPLabs] CAT Problem maybe?
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