[Milsurplus] VLF/ELF submarine comms

[D C *Mac* Macdonald]

TACAMO is current stuff, not WW II.  Their planes are based
less than five miles from my house!
 
73 - Mac, K2GKK/5
 



From: ramcam at magma.caTo: milsurplus at mailman.qth.netDate: Mon, 15 Sep 2008 18:19:52 -0400Subject: [Milsurplus] VLF/ELF submarine comms



What about TACAMO?  Didn't they use extremely long wave propagation to contact submerged subs? Didn't they use a very narrow FSK mode of transmission? If so, did what did they decode it with? 
 
I realize the message were very short due to the slow data rate but it was a form of RTTY. 
 
I understand the Russians used a very low shift FSK mode at fairly high speed which was not too apparaent to the ear. encrypted, it was difficult to decipher. 
 
Ralph
VE3BBM
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