[GreenKeys] QUES ABOUT CODED TRANSMISSIONS...

[Veenstra, Lester]

Most likely one time pads for single recipient

-----Original Message-----
From: greenkeys-bounces at mailman.qth.net
[mailto:greenkeys-bounces at mailman.qth.net] On Behalf Of ROBERT LAAG
Sent: Monday, October 11, 2004 3:48 PM
To: GREENKEYS at mailman.qth.net
Subject: [GreenKeys] QUES ABOUT CODED TRANSMISSIONS...


IN THE 70S , 80S, AND INTO THE 90S WE USED TO PRINT A BUNCH OF STATIONS
SENDING 
FIVE NUMBER GROUPS AS THE MESSAGE TEXT...  THE HEADERS WITH NORMAL ZCZC
TYPE 
STUFF CAME THROUGH OK BUT THE TEXT WAS IN GROUPS OF NUMBERS...  WHAT
KIND OF 
UNIT WAS USED TO DECIPHER THIS AND WAS IT MECHANICAL OR ELECTRONIC I
WONDER???

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