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Re: Topband: AM interference on 1840

To: Edward Sawyer <sawyered@earthlink.net>, <topband@contesting.com>
Subject: Re: Topband: AM interference on 1840
From: GEORGE WALLNER <aa7jv@atlanticbb.net>
Date: Tue, 21 May 2019 07:50:02 -0400
List-post: <mailto:topband@contesting.com>
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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