On 10/06/2016 21:50, Alessandro Gorobey wrote:
> I perfectly understood that some questions are premature and OOT.
> But I cannot understood 500+-1 Hz frequency difference from transmit and
> receive.
>
> Imagine a PC with real 3 audio boards and Ubuntu Xenial. Two of them are
> connected together IN to OUT and vice versa. Two separate instance of
> program are running.
>
> Selecting MKS144 as mode I obtain several lines with a 1000 that I
> presume the audio TX frequency
>
> 200815 Tx 1000 & CQ IW3RAB JN65
>
> on receive side
>
> 202705 -1 1.3 1498 & CQ IW3RAB JN65 !Italy
> 202715 -1 1.3 1499 & CQ IW3RAB JN65 !Italy
> 202725 -1 3.0 1499 & CQ IW3RAB JN65 !Italy
> 202735 1 2.1 1496 & CQ IW3RAB JN65 !Italy
>
> despite the couple of Hz but the other 500 ??
Hi Sandro,
in the WSJT-X MainWindow class there is a member variable m_bSimplex,
when set to true it disables the Tx frequency and tone offsetting that
is used to cover the necessary bandwidth for HF JT9+JT65 operation. It
looks like it is not being set for the "fast" modes where it should be.
Setting "Settings->General->Enable VHF/UHF/Microwave features" to
checked should also turn off the unwanted behaviour.
73
Bill
G4WJS.
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