[GreenKeys] Handling CRs

Ralph Irish w8roi at wowway.com
Sun Aug 27 02:18:04 EDT 2017


(I tried sending this directly to Eric and the mail system bounced it back saying, in part:

A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:  no3m at no3m.net

plus a bunch of other 'stuff' that was meaningless to me.

Ralph - W8ROI



> From: Ralph Irish <w8roi at wowway.com>
> Date: August 27, 2017 2:09:51 AM EDT
> To: no3m at no3m.net
> Subject: Re: [GreenKeys] Handling CRs
> 
> Eric
> 
> It is possible to equip the Sequential Selector of a Model 28 so that a Carriage Return (CR) will also produce
> a Line Feed.  (LF)   This is called 'NON-Overline'.  It requires less than 8 parts to be installed, in most
> cases, and I suspect that someone on GreenKeys may have some 'Mod Kits' for this purpose, or at least the
> required parts.  You might put out an inquiry about getting NON-Overline for your machine.
> 
> Or, it would also be possible to run all incoming data through a simple program which would sense a CR and
> follow it with a LF.  Another caution, though.  Many 'old time operators' will use two CRs as assurance that
> the print box will be in place before printing the next line.  So, any computer routine would have to ignore
> a second CR so as not to have a blank line between each printed line.
> 
> I think that mechanically, that was part of the "NON-Overline" mod kits.  A few parts prevented a second LF
> from the second CR.
> 
> - - - -
> 
> Some older TTY gear also had a feature of "Unshift on Space" so that after sending something in the "FIGS"
> situation, a space character would both cause a word space  AND  a downshift to letters.  This also caused
> a lot of problems for people whose printers did  NOT  have the Unshift on Space feature.  That, too, had a
> "Mod Kit" from Teletype I think.  This 'feature' is often abbreviated as  USOS  for Unshift on Space.
> 
> Hope this helps.
> 
> 73,
> 
> Ralph - W8ROI
> 
> - - - - - - - -
> 
> On Aug 26, 2017, at 10:10 PM, Eric NO3M wrote:
> 
>> I recently acquired a 28KSR and fired it up today in the SCC contest.  I notice that the overwhelming practice is to use CRs in macros but not insert LFs, which causes the printer to type over previous text.  It was so bad at one point that a particular station I was monitoring went through 3 QSOs and all the text (including his QSO partners) was printed on the same line!  Completely unintelligible.
>> 
>> Any thoughts on how this could be handled on the receiving end?  The current TU is a Flesher TU-170.
>> 
>> 73 Eric NO3M
>> 
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