[GreenKeys] Wes Clark

[Sheldon Daitch]

Don and Wes,

We also used the same dual tape system for VOA, for the occasional message that
was sent on the old HF TTY system and we wanted to keep the information a
little closer to the vest.  However, I don't recall it being used but only once since
I came to work with VOA in early 1979.  The biggest problem with it, from the
HF perspective, is that we had no idea if the coded message tape had taken any
hits.  At least with plain language messages, we could ask for repeats and build
up a good clean tape, but "encrypted" we had no clue.

We were using M-28 equipment at the time.

73
Sheldon

Don Mehl wrote:

> Wes,
> I was in crypto in WW II.  You describe what was called SIGTOT.  I operated it in WW II only we used Model 19's and 15's and mixed the cipher tape with the message tape in a 131B2 Mixer Table.  I have recently donated a Model 19, Model 15, Model 14,  and the parts to replicate the encryption table to the National Cryptologic Museum for an exhibit.  I knew that they used SIGTOT until 1950.  We worked with the Army Security Agency who made the encryption tapes. I still know the man who did it.  I have a book on SIGTOT.  Tell me more.
> Don Mehl
>
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