VarAC - HF discussion forum

Hi!

As i wrote also in the Facebook group, I have an issue with G90 Xiegu. On a Microsoft Surface 3, the PTT will not released after a CQ call. The tests in the config dialog are working. The Surface has an Atom CPU with 1,6 GHz.

Trying the same on a Fujitso Ultrabook i7 with 2,6 GHz, everything is working like a charm.

I tried different CAT cables with no success. All other digimodes (includes VARA-HF with Winlink) are working.

So, I started to analyze the UART protocol on the CAT line. And I found differences between the Fujitsu and the Surface. I'm confused, because I use the same hardware.

PTT on - Fujitsu:

PTT on Surface:

PTT off Fujitsu:

PTT off Surface:

During the CQ calls, the commands are the same.

Maybe this is the reason for my problems?

Thank you!

73 de Thomas, OE3TBR

EDIT: Could it be, that's the rig type? I guess I had on the Fujitsu the G90 and on the Surface the IC-7200 ... I'm freakn' out ... :-)