Topband: AM interference on 1840

[Herbert Schoenbohm]

1844 would be a great solution for FT-8.  Now we have to convince the WSJTX
people to put 1844 in their dropdown menu we they do the next release.
They have 1838 for JT-65 which few ever use today and that could be another
option for FT-8.

On Tue, May 21, 2019 at 10:50 AM cqtestk4xs--- via Topband <
topband at contesting.com> wrote:

> I don't have a dog in the fight but why not move to 1843 or 1844.  Is 1840
> sacrosanct?
> Bill KH7XS
>
> -----Original Message-----
> From: Jorge Diez - CX6VM <cx6vm.jorge at gmail.com>
> To: Edward Sawyer <sawyered at earthlink.net>
> Cc: GEORGE WALLNER <aa7jv at atlanticbb.net>; TopBand List <
> topband at contesting.com>
> Sent: Tue, May 21, 2019 12:51 pm
> Subject: Re: Topband: AM interference on 1840
>
> Ed
>
> FT8 can move, but 1840 still is useless to do CW, so is not a FT8 problem
>
> George said the two big problems, hope this not increase with harmonics
>
> 73,
> Jorge
> CX6VM/CW5W
>
> El mar., 21 may. 2019 a las 8:52, Edward Sawyer (<sawyered at earthlink.net>)
> escribió:
>
> > I agree with the 2 messages.  But there is a 3rd.  The inability for the
> > FT8 crowd to QSY around some interference.  Interference is a fact of
> > life.  And we have QSY’s around it (even as it is being worked) for a
> > century.
> >
> >
> >
> > Ed  N1UR
> >
> >
> >
> > From: GEORGE WALLNER [mailto:aa7jv at atlanticbb.net]
> > Sent: Tuesday, May 21, 2019 7:50 AM
> > To: Edward Sawyer; topband at contesting.com
> > Subject: Re: Topband: AM interference on 1840
> >
> >
> >
> > There are two messages in this topic: One is the interference from this
> > particular BC station. Not a crisis, not yet. Two is a warning: Newly
> > installed solid-state AM broadcast amplifiers in poorly regulated
> regions,
> > over time, will have the potential to fill the entire 160 meter band with
> > harmonics. The second part is not trivial and should be a heads-up. The
> > earlier we find ways to deal with it, the better.
> >
> >
> >
> > 73,
> >
> > George,
> >
> > AA7JV
> >
> >
> >
> > On Tue, 21 May 2019 05:32:24 -0400
> >
> > "Edward Sawyer" <sawyered at earthlink.net> wrote:
> >
> > While the harmonic interference is unacceptable and needs to be dealt
> with,
> >
> > isn't this only "a crisis" because of the simplistic FT8 solution of
> >
> > bunching everyone up on a small channel? It reminds me of the old CB days
> >
> > when something would happen on a certain channel but no one would move
> >
> > because they have always had the radio on channel 2 and that's where all
> >
> > their buddies are. Or the 75M pig farmers that refuse to move but
> complain
> >
> > and harass on QRM that was there before their daily time started.
> >
> >
> >
> > For those of us using CW on topband, this isn't a real problem except
> for a
> >
> > contest weekend. And honestly, it will just get moved around, like the
> >
> > Middle East jammer on 3807.
> >
> >
> >
> > 73
> >
> >
> >
> > Ed N1UR
> >
> >
> >
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>
> --
> 73,
> Jorge
> CX6VM/CW5W
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