[Lowfer] TACAMO on 27.2 kHz

[Garry Hess]

Laurence, nice grabber capture of two TACAMO bursts. I saw the earlier 
one too but only the very end of it so didn't report it.

Kurt, these signals come on randomly at various VLF frequencies. That's 
why a grabber is the only way to catch them all. Depending on where the 
source is the signal can be very loud or weak. The format is usually a 
short period of 50 baud RTTY followed by one or more periods of 
wide/wider/very wide encrypted MSK that just sound like noise. 
http://w5jgv.com/downloads/Worldwide%20ELF%20VLF%20Guide.pdf is a nice 
compilation of VLF sources with the various TACAMO frequencies noted.
-- 
73, Garry, K3SIW, EN52ta, Elgin, IL