[GreenKeys] M28 features for RTTY operation today?

[Ralph Irish]

The purpose of the    CR  CR  LF  LTRS   sequence is to assure that the typebox or type
basket is back at the left margin   BEFORE   any significant characters are printed.

It is possible, under some circumstances of synchronization machine wear/adjustment for
a character to be printed as the device moves to the left,  IF  the extra characters are
not sent at the end of a line.

I saw a couple of shipmates who occasionally had a contest to see who could drop a period
in the center of a zero this way.    The idea was to type a zero  and with precision
timing, type a period as the type mechanism was returning to the left margin.  I saw it
done a number of times, but never a situation where it happened every time.  It often 
took a dozen or more attempts for it to happen.  Where 'non-overline' is employed, all 
one can do is place the period directly  UNDER   the zero, I guess.  We never had non-
overline on any of our 28s so anything I say here would be guesswork.

CR  CR   LF   LTRS  is not a bad habit to establish.

73,

Ralph - W8ROI

PS   Most Model 28s that I've seen are set to ring the bell or a bell as the 72nd
     character is printed to warn the typist to end a word and then  CR  CR  LF  LTRS.

R

-   -   -   -   -   -   -   -


On Feb 25, 2019, at 11:00 AM, Nick England wrote:

> My understanding is that no incoming characters are lost. The auto CR/LF function is entirely mechanically initiated at the 80th (or whatever) character position. The process does not involve any incoming characters, just the same levers used for Local CR and Local LF. 
> Of course, incoming character(s) may get printed in the wrong place while the typebox is moving back to the beginning of the next line. 
> Nick
> 
> On Mon, Feb 25, 2019 at 9:27 AM Paul Heller <paul0926 at comcast.net> wrote:
> This is a GREAT discussion!
> 
> I’ve always wondered: do two characters fr the incoming transmission get dropped while the machine is executing the auto CR LF?
> 
> Paul
> W2TTY
> 
> 
> 
> On Feb 25, 2019, at 6:04 AM, Russ Miller <wa3frp at gmail.com> wrote:
> 
>> Hi Nick, 
>> 
>> MMTTY has two options that apply:
>> 
>> The first is to send an automatic CR LF at the start of every transmission.  The other option that can be selected is "word wrap on keyboard"  That option keeps the letter of a word together when you get to the end of a line. However, this is only on the computer screen of the transmitting station as the size of the MMTTY window will vary depending on how the individual operator has set up his MMTTY window. Neither is a big help for a mechanical RTTY machine operator. 
>> 
>> The bottom line that always works for me...install "non-overline" and "auto CR LF" per the instructions from Irv in RTTY Journal.  Remember, you can also use the red LOC LF and LOC CR keys if something goes wrong. 
>> 
>> Thanks 73
>> 
>> Russ  WA3FRP
>> 
> ______________________________________________________________
> GreenKeys mailing list
> Home: http://mailman.qth.net/mailman/listinfo/greenkeys
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:GreenKeys at mailman.qth.net
> 
> 2002-to-present greenkeys archive: http://mailman.qth.net/pipermail/greenkeys/
> 1998-to-2001 greenkeys archive: http://mailman.qth.net/archive/greenkeys/greenkeys.html
> Randy Guttery's 2001-to-2009 GreenKeys Search Tool: http://comcents.com/tty/greenkeyssearch.html
> 
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
> Message delivered to w8roi at wowway.com

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20190225/5331d115/attachment.html>