WSPR PTT for ICOM I-751

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VE9AAS
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Joined: 2021/07/17 - 15:04
WSPR PTT for ICOM I-751

Connecting The PTT of WSPR2.0 to operate the PTT in ICOM 751

Facts:
My radio is not CAT control
I must use VOX Ptt
WSPR is receiving ok - I can see Sigs on the waterfall.
I can see received stations on the users list. The interface I use for received sigs is patch cord from rig headset to laptop mic in.
I see WSPR go into TX mode for 2 minutes. I hear a high pitched tone which suggests WSPR is attempting to transmit data.

Now my problem is - how do I get the PTT function to work. Seems to me that SSB needs audio to trigger the VOX and I am guessing that the tone I hear is likely the audio that does it.I thought of making a patch cord with mic connector and feed the audio that way, but I suspect that the RX noise would trigger the vox.

any help appreciated.