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[Propagation] LP Versus SP Maps

To: "a Propagation Reflector" <propagation@contesting.com>,"a HCDX Prop Channel" <propagation@hard-core-dx.com>
Subject: [Propagation] LP Versus SP Maps
From: "Thomas Giella KN4LF" <kn4lf@tampabay.rr.com>
Date: Wed, 20 Oct 2004 19:15:32 -0400
List-post: <mailto:propagation@contesting.com>
If you download W6EL's free and excellent HF propagation prediction program you 
can print out heading maps and bearing to all the DX entities. It also shows 
you the day/night terminator and LP/SP in real time on a great circle or 
rectangular map. Here is the link to the download file: 
http://www.qsl.net/w6elprop. 

If you look at the current global MUF map from Space Weather dot com at 
http://www.spacew.com/www/realtime.gif you can get a pretty good idea of
whether the LP or SP propagation route is open. Often times you get LP and SP 
propagation at the same time around the fall and spring equinoxes. You can 
identify it by the echo.

73,
Thomas F. Giella, KN4LF
Retired Space & Atmospheric Weather Forecaster
Plant City, FL, USA
Grid Square EL87WX
Lat & Long 27 58 33.6397 N 82 09 52.4052 W
kn4lf@arrl.net

Propagation eGroup: http://lists.contesting.com/mailman/listinfo/propagation
KN4LF Daily Solar Space Weather & Geomagnetic Data Archive: 
http://www.kn4lf.com/kn4lf5.htm
KN4LF Amateur & SWL Radio History: http://www.kn4lf.com




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