Mike, since AM is an accepted and legal mode, there is no AM "window" The
ARRL band plan lists calling frequencies, which means we should make contact
and QSY to another clear frequency.
First of all, the band plan is not a legal document. Secondly, if people
did as the suggestion, you would hear AM QSOs through the phone portion of
the bands. The frequencies that are listed usually wind up being the ones
where contacts are established and people stay there.
The movement you mention is because a individual or group pick a frequency
to meet and most AMers then think of that as an AM frequency or "window".
Use any frequency you choose and move about.
73 Jim
W5JO
----- Original Message -----
From: "Mike Duke, K5XU" <[EMAIL PROTECTED]>
To: "Discussion of AM Radio" <[email protected]>
Sent: Sunday, December 11, 2005 8:46 PM
Subject: [AMRadio] Who Sets the AM Window Frequencies?
I'm just curious to know about how the current AM window frequencies were
determined.
The one for 15 meters appears to have drifted up and down the band over
several years.
I recall it being 21.330 one year, then 21.390, 21.415, 21.430, and now
apparently 21.425.
I'm delighted to see the recent attempts at activity on 15 meters, and
will
make additional comments relative to that band later.
Mike Duke, K5XU
