(U) [R-390] Interesting Link Vietnam NSA released report

[Cecil Acuff]

I had a co-worker who was an airborne CW intercept op flying over the 
jungles of Vietnam and other unmentioned places...

Interesting guy to talk to....He retired a few years back and I haven't seen 
him in a while.

Cecil
----- Original Message ----- 
From: "mikea" <mikea at mikea.ath.cx>
To: <r-390 at mailman.qth.net>
Sent: Monday, February 25, 2008 2:58 PM
Subject: Re: (U) [R-390] Interesting Link Vietnam NSA released report


> On Mon, Feb 25, 2008 at 03:49:19PM -0500, DJED1 at aol.com wrote:
>> I found it a fascinating read.  Apparently much of the North  Vietnamese
>> communication was encrypted CW, accounting for the large numbers of 
>> R-390s and
>> intercept operators needed in that time period. Today it seems  strange 
>> to read
>> about all the manual effort required to encode, intercept,  decrypt and
>> disseminate the information.  But it was 40 years ago  (ouch!-seems just 
>> like
>> yesterday). I did see a mention of R-392s being used  for mobile 
>> intercept stations.
>>
>> Strange that some classified paragraphs were released, while others are 
>> gone
>> altogether.
>
> (U) Not so strange: not all information cools at the same rate, and
> things that might reveal current (or not yet sufficiently aged) methods
> and sources [SEVENTEEN WORDS REDACTED]
>
> (U) I'm quite interested in the NV cryptosystems, myself, but I don't
> expect to see anything about them this century. Anyone here got stuff
> that can be shared?
>
> (U) Lots of R-390s on the ground and in the air, lots of R-392s and
> other gear on the road, and at least some RACAL 6217 gear mounted on
> helos and being used to DF sources. Wouldn't surprise me if there had
> been RA-17 gear in use, as well as the SP-600s, HRO-50s, Collins, and
> whatnot.
>
> -- 
> Mike Andrews, W5EGO
> mikea at mikea.ath.cx
> Tired old sysadmin
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