Hi folks!

Just for information, I've found and interesting Web page regarding
LORAN C. You'll find the complete list of transmitters, with their
locations and power output, at:

http://www.megapulse.com/table.html

When you click on the name of the site, you get a small map with the
approximate coverage of the transmitter. Maybe this would be of some help?

73, Mark, F6JSZ

P.S. Antenna projects are in progress: the 136 kHz half-wave dipôle is
coming to shape, but it will be in a squere configuration (like a
full-wave horizontal loop with a cut in the wire on the side opposite
the feedpoint). A big one! Hope it'll work...