[GreenKeys] 10 Hz shift RTTY?

[Raymond Cote]

Yes it was in upper Wisconsin and Michigan UP st Clam Lake. It was stopped in 2004. I retired in 1972 so dont know what is used now, and it might be classified.
In 1962 no "code" was used and comm was scrambled. To xmit the msg was on punched tape and fed into a WRT-4 transmitter ( i think) and burst transmitted to absolutely minimize antenna exposure.



Raymond Côté

Ex US Navy ET1 (SS)

Submarine service



Ex Univ of Hawaii

Oceanographer

underwater volcanology

Ham license -KD9CCZ
Commercial radio telephone license PG-21-3809

On Jul 25, 2017, at 21:15, Chris Elmquist <chrise at pobox.com<mailto:chrise at pobox.com>> wrote:

Clam Lake, WI

https://en.m.wikipedia.org/wiki/Project_Sanguine

Chris N0JCF


On July 25, 2017 8:11:12 PM CDT, "tony.podrasky" <tony.podrasky at gmail.com<mailto:tony.podrasky at gmail.com>> wrote:
Interesting.

I was told, a long time ago, that in one of the North/Central
states, there was a REAL LONG wire antenna that was buried - and
it was used to talk to subs.

UE,
K2EAA - TONY
NNNN
ZCZC


On 07/25/2017 05:40 PM, Raymond Cote wrote:
Submarines need not surface to receive. Its called a floating wire.
70khz is transmitted everywhere, not ground wave, not sky wave but
thru
the earth for the most part. Transmitting from subs is another story


Raymond Côté

--
Chris Elmquist
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