On Wed, 08 Feb 2012 09:50:45 +0000
Bruce wrote:
Thanks, a personal email also confirmed that the German signal has a
range in excess of 2000 km. Remarkable.

Not really - its around 60Khz which means it travels as a ground wave and
will go a long way without requiring huge amounts of power. God knows how
the physics works but its a very useful effect.

B2003