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« Last post by SM3LGO on 2025-03-30, 14:37:25 »
Hello
I have a Remoterig setup with a Kenwood TS-480, and eveything works prefectly except that PTT is activated after about 2 minutes, no matter what I do.
I am controling the TS-480 via USB-to-RRC1258 on the control side and COM2-to-TS480 on the radio side (COM2 setup as per the manual).
When I connect the USB cable between the RRC1258 control unit and the PC, the TS-480 will always go into TX after about 2 minutes. It does not matter if I have any software running on the PC, it seems to be inserting the USB connector that is the source of the PTT trigger (but "delayed" by 2 minutes). Before the PTT triggers, i.e. during the first 2 minutes, CAT control and PTT via WSJT-X works perfectly.
Also, it does not matter if I on the radio side pull out the cables for MIC, COM2 and CW keying, the PTT is still always triggered after 2 minutes. So the only explanation is that something via the TTL/panel connector triggers the PTT at the radio side.
Any suggestions?
73 + TNX in advance
/Mats, SM3LGO