[Lowfer] 22.7 kHz TACAMO

Garry k3siw at sbcglobal.net
Thu Aug 8 14:11:25 EDT 2019


Kurt,

I use USB but CW is fine too. The bandwidth has to accommodate signals 
somewhat wider than the usual VLF stations like NAA on 24 kHz, NLK on 
24.8 kHz, etc. TACAMO often has a narrowband precursor transmission at 
50 baud RTTY wherein "TACAMO" is repeatedly decoded. The regular 
frequency-spread transmissions of course are encrypted but recognizable 
by their frequencies, bandwidth changes, and intermittent nature. They 
occasionally show up nicely as "blips" on Laurence's grabber 
(http://kl7l.com/Alaska.html).

73, Garry, K3SIW, EN52ta, Elgin, IL


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