Topband: AM interference on 1840

[Raymond Benny]

I'd say move higher, say 1.860 or wherever...

But I can see that having an antenna resonate for the lower CW area and a
higher FT8 frequency could be difficult.

Ray,
N6VR/W7YA

On Tue, May 21, 2019, 10:20 AM Paul Kiesel via Topband <
topband at contesting.com> wrote:

>  I think 1840 works for most. Moving the FT8 frequency because of one
> second harmonic of a broadcast signal is not called for. Getting the
> broadcast station to clean up its signal is. There are other activities on
> 160 that would have to change frequency if the FT8 frequency were to
> change. There is one local nightly "net" in the PNW that meets on 1847.
> They are already too close to 1840 if one needs to use his noiseblanker and
> there is no reason to believe they would move to make another frequency
> available for FT8. 1840 has been established and works. Getting that
> broadcast station to clean up its signal is the thing to do.
> 73, Paul K7CW
>
>     On Tuesday, May 21, 2019, 5:04:56 PM UTC, Herbert Schoenbohm <
> herbert.schoenbohm at gmail.com> wrote:
>
>  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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