You guys are saying the same thing if different ways. It is all split. Just
like repeater split, DXpedition split, and 40m DX split are all different kinds
of split so are rig split and audio split in WSJTX. If anything this just shows
that it needs to be clarified in the documentation so it is easy for newbies to
understand. Then you can work on getting them to actually read the manual. :)
73
-Jim
NU0C
On Mon, 1 May 2023 14:21:03 +1000
Adrian via wsjt-devel <wsjt-devel@lists.sourceforge.net> wrote:
> Again I disagree. Your are not discussing the same factor that I am of
> the radio changing carrier frequency as displayed with data shift
> allowance already of ;
>
> FUNC > RADIO SETTING > Mode PSK/DATA> DATA SHIFT {SSB} set 1500 HZ .
>
> So if I see a spot at 28.079.400, I tune to 28.079.00 and sure enough I
> find that target at 400Hz on the Pan display.
>
> I TX mark 1200 Hz on pan and the SUB vfo transmits 28.078.500 (500HZ sub
> vfo auto down shift controlled from wsjtx), and audio frequency is 1700HZ,
>
> keeping the 1500 - 2000 HZ sweet spot window the split shift is designed
> for.
>
> I do not accept the radio is not changing RF frequency on TX, I do
> accept it is and the software generates the appropriate audio frequency
> to compensate,
>
> which the sum becomes the frequency spotted. My explanation is the radio
> condition at the radio, not the received signal elsewhere.
>
>
> 73
>
>
> vk4tux
>
>
> On 1/5/23 13:55, Jim Brown via wsjt-devel wrote:
> > On 4/30/2023 4:30 PM, Adrian via wsjt-devel wrote:
> >> Reino, this is where we disagree, as my point is if the vfo frequency
> >> changes, then the 'radio frequency' which I consider the same also
> >> changes.
> >
> > Adrian,
> >
> > Reino is right, and you are wrong. Nothing personal, just scientific
> > fact. The frequency readout of virtually all modern transceivers set
> > to receive CW is radio frequency corresponding to the center of the
> > receive bandwidth. When a second RX set to receive CW is tuned to peak
> > your FT8 signal, that readout IS the center of the 50 Hz signal you
> > are transmitting. If your USB dial frequency is 21.074 MHz (21,074
> > kHz) and your offset is 1.5 kHz, the center of your signal is 25 Hz
> > above 21.0755 MHz (21,075.5 kHz) (25 Hz because WSJT-X defines TX
> > frequency as the frequency of the lowest tone).
> >
> > 73, Jim K9YC
> >
> >
> >
> >
> > _______________________________________________
> > wsjt-devel mailing list
> > wsjt-devel@lists.sourceforge.net
> > https://lists.sourceforge.net/lists/listinfo/wsjt-devel
>
>
> _______________________________________________
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