Digirig Mobile with TS680S and no CAT interface. Has microphone interface, how to get PTT to work

Hi,
Have a Digirig mobile and I also bought the interface cable for a TS680S mic socket, which works fine for RX. But no PTT function as rig has no CAT interface card in it. I thought it would use the PTT line in the mic socket but it doesn’t seem to. How do I configure digirig and the software to key PTT without the CAT interface on this radio please? Otherwise, it’s most of $300AU for an aftermarket CAT board and freight from the USA to Oz. ($99US plus $75US freight)
Regards
Geoff
VK5GDR

Geoff,
CAT capability is not required for PTT activation. In the software you are configuring set PTT by RTS signal of Digirig’s COM port.

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