[GreenKeys] CR LF, etc.

Nick England navy.radio at gmail.com
Wed Jul 23 15:46:47 EDT 2025


It wasn't just a ham thing - military message formats required CR CR LF
Messages were often punched on tape and then transmitted at 100 wpm.
Example message from a Navy Radioman training manual -

(5 SPACES 2CR LF)
PP RUHPC      (2CR LF)
DE RUHPB 85 01/0841Z     (2CR LF)
ZNR      (2CR LF)
P 010837Z      (2CR LF)
FM CINCPACFLT (2CR LF)
TO RUHPC/NWBJ/USS (2CR LF)
RENSHAW (2CR LF)
BT (2CR LF)
UNCLAS (2CR LF)
1. THIS PLAINDRESS (2CR LF)
SINGLE-ADDRESS MSG IS (2CR LF)
....

Nick England K4NYW
www.navy-radio.com


On Wed, Jul 23, 2025 at 10:07 AM John Nagle via GreenKeys <
greenkeys at mailman.qth.net> wrote:

> > From:"hwhall at aol.com"  <hwhall at compuserve.com>
> > Subject: Re: [GreenKeys] CR/LF trivia, in historical context
> >
> > radio amateurs made it a habit to send CR CR LF with the idea that 2 CRs
> >   gave sufficient time for even a slow machine to get back to the start
> > of the line.
> >
> > Wayne
> > WB4OGM
> >
>
>
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