Another way will be that the FT8 signals will be on a 15 second cycle. FT4
lacks such a fixed cycle and won't be starting at specific intervals.
I believe there's a kill switch in the software that makes it stop
functioning right before the June VHF contest as they don't feel it'll be
ready. You could, of course, turn your computer clock back (queue Cher) and
operate that way, but that'd probably only work if you know someone else
doing it.
On Thu, May 2, 2019 at 1:18 PM Scott Armstrong <aa5am@vntx.net> wrote:
> Hi Steve,
>
>
> Several ways to tell the difference between FT4 and FT8.
>
> The 6m FT4 watering hole is 50.318MHz for now (This could change) vs.
> 50.313 for FT8
> The FT4 signal is 90 Hz wide compared with 50Hz for FT8
> FT4 TX/RX period is 6 seconds vs. 15 seconds for FT8.
> And if you have a good ear, you can hear the difference. Take a listen on
> 14.080 Mhz.
>
>
> FT4 vs. FT8 question is a good one and not sure there is an answer yet.
> Trade off is speed for sensitivity.
> If the band is wide open with strong signals, FT4 would be the obvious
> choice, if it isn't open or sort of open probably FT8 would be better. Just
> consider it a new tool in the toolbox and you will need to learn how and
> when to use it to make the best use of what you have. Last heard, FT4
> won't be available for the ARRL June contest or the CQ contest in July.
>
>
> 73,
> Scott AA5AM
>
> On Thu, May 2, 2019 at 11:58 AM Crownhaven <crownhaven@bellsouth.net>
> wrote:
>
> > I thought I would ask here as the WSJT reflector is overflowing. How
> > does one know if they other station is using FT4 vs. FT8? Is this
> > something we, in the VHF and up world, want to start using vs. FT8?
> > Many more questions but I'll wait for an answer to this one.
> >
> > Kind regards,
> >
> > Steve, EM55BD
> >
> > _______________________________________________
> > VHFcontesting mailing list
> > VHFcontesting@contesting.com
> > http://lists.contesting.com/mailman/listinfo/vhfcontesting
> >
> _______________________________________________
> VHFcontesting mailing list
> VHFcontesting@contesting.com
> http://lists.contesting.com/mailman/listinfo/vhfcontesting
>
_______________________________________________
VHFcontesting mailing list
VHFcontesting@contesting.com
http://lists.contesting.com/mailman/listinfo/vhfcontesting
|