Topband: FT8 qrm

[Peter Sundberg]

This is Joe Taylor K1JTs description of how WSJT-X default 
frequencies (windows) are established:

"The authors of WSJT, MAP65, WSPR, and WSJT-X have never attempted to 
impose standards for operating frequencies of our various modes. 
Sometimes we have made initial suggestions, usually with IARU Region 
2 in mind.  But the frequencies in use today are effectively 
established by users, not by us.  When conventional usage seems well 
enough established by the community, we have added mode-specific 
default frequencies to a list in WSJT-X "

To me it seems pretty clear that if the software is pre-programmed 
with a set of default frequencies for different bands, the users are 
NOT spinning the VFO to find a clear space. Last summer this concept 
created quite a bit of commotion in Region 1 among users of a higher 
band as the WSJT-X default frequency was not in correspondence with 
the R1 bandplan.

So, to answer your question Mark - Mr Taylor and his colleague 
authors of a software bundle.

73
Peter SM2CEW





At 17:17 2017-11-29, Mark K3MSB wrote:
> >>established band usage
>
>Out of curiosity,  exactly who "established" 1840 + 2.5 KHz as the FT8
>"window"?
>
>Mark K3MSB
>
>On Nov 29, 2017 12:04 PM, "Brian D G3VGZ" <topband at planet3.freeuk.co.uk>
>wrote:
>
>I shall be operating this weekend full legal limit *below* 1837.5 CW, and
>also FT*/JT65/JT9 at up to the legal limit above 1838. There's no reason
>both can't co-exist. It should be a rule in contests that all stations
>deliberately operatimg out of the established band usage to be disqualified.
>I refuse to work those stations which flaunt the band plans.
>
>
>"Ed Sawyer" <sawyered at earthlink.net> wrote:
>
> > I'm sorry but I don't buy the argument that the way to be a "gentleman" is
> > to accept everyone else's interests above your own.  A "gentleman" is
> > respectful of others and treats others as he/she wants to be treated.
> >
> >
> >
> > No one owns a frequency channel at least in the US - read your license.
> >
> >
> >
> > If I come on a frequency, hear nothing, ask QRL using a legal and accepted
> > mode for the frequency and hear nothing, I am using the frequency.  By the
> > way - even the ARRL admits there is no longer a "DX Window" on 160M.
> >
> >
> >
> > If FT8 is such a fragile mode to QRM that it needs a 2khz undisturbed
> > window, then it is a flawed mode that will not stand the test of time in
> > my opinion.  I am already starting to hear DX side people saying it's a
> > complete waste of time and abandoning it.  I hear 3Y is going to try it -
> > that should be hilarious.
> >
> >
> >
> > I think that most of the FT8 crowd is horribly misinformed with dribble
> > they read on the internet and think that some "net authority" has granted
> > exclusive access to said frequency band and that they have had such right
> > since June.
> >
> >
> >
> > Look for me on 1840 in the ARRL 160 this weekend after listening, asking
> > QRL, and seeing if I am disturbing anyone in my 400hz receiving window.
> >
> >
> >
> > 73
> >
> >
> >
> > Ed  N1UR
> >
> > _________________ Topband Reflector Archives -
> > http://www.contesting.com/_topband
> >
> >
>
>
>--
>Brian D
>G3VGZ G3T
>_________________
>Topband Reflector Archives - http://www.contesting.com/_topband
>_________________
>Topband Reflector Archives - http://www.contesting.com/_topband