[Collins] NNNN

[Gerald]

On Sat, 2005-07-23 at 21:04 -0700, Robert Lawson wrote:
> Fellows,
> 
> Where does the text "NNNN" originate (radio history) in text messages 
> below the "signature" line? I see NNNN used sometimes, depending on the 
> particular NWS forecaster, with the National Weather Service text 
> messages about active tropical storms/hurricanes (which I might add, 
> seem to be frequenting my area lately HI).  Also there is sometimes the 
> "$$" being used along with the "NNNN"
> 
> Just wondering.
> 
> Regards,
> 
> Robert WPE4FGR W4RL Pensacola Florida
NNNN is an old wire line expression for end of message, a lot like 30
from telegraphy. 

If the NWS followed their own rules, they would only use $$ to separate
parts of a forecast or report, but sometimes they put it at the end
also.

NCNC should mark the beginning of a message ended with NNNN if I
remember correctly. I put recognizing those in my software so long ago
I've forgotten the rest of the details.
-- 
73, Jerry, K0CQ, Technical Advisor to the CRA
All content copyright Dr. Gerald N. Johnson, electrical engineer