James Moritz wrote: > > There is quite a bit of info around on the US and Russian ELF > systems on 76 and 82Hz respectively - signals have been received > by amateurs, too - have a look at: > > http://www.fas.org/nuke/guide/usa/c3i/elf.htm > http://www.vlf.it/zevs/zevs.htm > http://www.vlf.it/submarine/sbmarine.html > > Cheers, Jim Moritz > 73 de M0BMU