[GreenKeys] series of "N"'s

[k0bx at arrl.net]

After I got out of the Navy (1966-1970) I went to college and worked part-time 
as a teletypest for Japanese Trading Company.
One of the teletype machines I used was a Model 32ASR setup for TELEX service 
from Western Union.

We were exporting F-4 jet's from McDonnell Douglas to the Japanese Air Force.  
TELEX was a dialup service.  Since most of the message went to McDonnell 
Douglas, instead of sending each message separate I could cut a paper tape with 
the ZCZC header, ending with the 4 NNNN's then next message, next message, with 
the last message having NNNNEND which would tell TELEX that was the last message 
in the batch which then would disconnect and turn the machine off.  I never 
heard of anyone else using the NNNNEND.

BTW, I cut tape 4 hours a night, 5 nights a week for 5 years.  We also had a 
model 28ASR on a lease line that connected all the offices together.

Joe K0BX
 

 Stop the insanity!
Please do not add me to any distribution lists (Joke, Stories or Junk) without 
my permission.




________________________________
From: Sheldon Daitch <sdaitch at kuw.ibb.gov>
To: aa8k73 at gmail.com
Cc: greenkeys at mailman.qth.net
Sent: Mon, August 15, 2011 3:28:20 AM
Subject: Re: [GreenKeys] series of "N"'s

We (VOA) were part of the abnormal world and perhaps still are,
but in the long ago days of real TTY and paper tape, we
used the NNNN for end of messages and the reperfs
on the receive side were set up to stop punching tape on
the NNNN....actually they would stop on the third N,
if I remember it correctly.

We weren't a net operation, but a point to point
system, with Greenville VOA as the hub for the
daily RTTY schedule, so all message traffic was
punched.  To start the reperfs, we used FAXFAX
and in fact even today, we still call our record message
system the FAXFAX even though it has nothing to do
with the TTY system.

73
Sheldon

On 8/15/2011 1:25 AM, AA8K73 GMail wrote:
> ZCZC
>
>
>
> Selective-Calling  (mechanical filtering)
>
>    ZCZC = all call (everyone print)
>
>    NNNN = end of message  (no printing until another ZCZC or your
> own Sel-Cal code(s) was received)
>
>
> I believe these were chosen because the letter combinations
> would not appear in normal text.
>
>
> 73,
> Mike - AA8K
>
> CR CR LF Ltrs Ltrs
>
>
> NNNN
>
>
>
>
> On 08/14/2011 05:51 PM, Norm wrote:
>    
>> Hi
>> While we are into acronyms what does it mean to send a series of "N"'s at the 
>>end of a message, and is it a certain number of them?
>> Thanks
>> Norm
>> WB7WEQ
>>      
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