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 < [email protected]> 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 < > [email protected]> 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 < > [email protected]> 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 <[email protected]> > > To: Edward Sawyer <[email protected]> > > Cc: GEORGE WALLNER <[email protected]>; TopBand List < > > [email protected]> > > 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 (<[email protected] > >) > > 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:[email protected]] > > > Sent: Tuesday, May 21, 2019 7:50 AM > > > To: Edward Sawyer; [email protected] > > > 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" <[email protected]> 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 > > > > > > > > > > > > _________________ > > > > > > Searchable Archives: http://www.contesting.com/_topband - Topband > > > Reflector > > > > > > > > > > > > _________________ > > > Searchable Archives: http://www.contesting.com/_topband - Topband > > > Reflector > > > > > > > > > -- > > 73, > > Jorge > > CX6VM/CW5W > > _________________ > > Searchable Archives: http://www.contesting.com/_topband - Topband > > Reflector > > _________________ > > Searchable Archives: http://www.contesting.com/_topband - Topband > > Reflector > > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > > _________________ > Searchable Archives: http://www.contesting.com/_topband - Topband > Reflector > _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
