[IRCA] Gray Line Software

[Les Rayburn <les@xxxxxxxxxxxxxxxx>]

My recent return to serious AM DXing has only proven that I still have a 
lot to learn.

For instance, I spent the past day reading detailed reprints from the 
NRC and IRCA publications involving Local Sunrise and Sunset DXing, 
including a review of maps and calculations. Complicating the issue are 
FCC rules changes which have changed the types of stations and their 
authorizations.

At the moment, I'm looking for software or a web based application that 
would provide the following information without having to do a lot of 
manual calculations:

1.) Gray line map showing also the tilt of the earth between solstice 
and equinox. In other words, a map that provides a real time view of the 
earth as it really is today. Not a simplistic representation that does 
not change with the seasons.

2.) The ability to select any two points on earth and see if they are in 
darkness or light.

3.) Domestically, I'd like a map that shows which areas are operating 
under sunrise or sunset authorizations. In other words, one that will do 
the calculations for me.

Does such a tool exist?


--
73,


Les Rayburn, N1LF
Maylene, AL
EM63

Member NRC, IRCA, & Medium Wave DX Circle
Former CPC Chairman for NRC/IRCA

Perseus SDR, SDR-IQ,Funcube Pro, Wellbrooke ALA-1530+ loop, LF 
Engineering Active Whips,
Quantum Phaser, Kiwa Loop, Palstar MW Pre-Selector

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