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Re: Topband: sunrise

To: "topband@contesting.com" <topband@contesting.com>
Subject: Re: Topband: sunrise
From: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Sat, 21 Apr 2007 16:27:59 -0700
List-post: <mailto:topband@contesting.com>
On Sat, 21 Apr 2007 11:49:36 EDT, W7lr@aol.com wrote:

>Can anyone shed light on this?  

Yes. It's all in these links.

http://en.wikipedia.org/wiki/Twilight

http://aa.usno.navy.mil/faq/docs/RST_defs.html

73,

Jim K9YC



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