Jorge. I agree the harmonics are not acceptable. But between fishing buoys
and other birdie type QRN, moving around to find a clear frequency is not new
to 160M, nor ham radio in general. Its part of what we do. As soon as
something channelizes – its very limited quickly.
Ed N1UR
From: Jorge Diez - CX6VM [mailto:cx6vm.jorge@gmail.com]
Sent: Tuesday, May 21, 2019 8:50 AM
To: Edward Sawyer
Cc: GEORGE WALLNER; TopBand List
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@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@atlanticbb.net]
Sent: Tuesday, May 21, 2019 7:50 AM
To: Edward Sawyer; topband@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@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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