[Elecraft] K3 UOS?

[Bob]

Well as I understood it from years ago it was not just setup but condition of 
the machine too.   Today in logic terms it would be a "race" condition.  Would 
the carriage actually be returned and ready in time?  Quite often not so the 
solution was to send multiple CR's or LF's.  The mechanical equivalent of one 
shots or logic delay loops.  This was done before RTTY and was a problem on TTY 
current loops.

No RTTY QSO's in years but have functional setup for receive, K3 audio to a 
Timewave 59Y driving a model 15.  Great demo and conversation piece for visiting 
hams.

73,
Bob
K2TK  ex KN2TKR(1956) & K2TKR


On 4/7/2016 9:08 PM, Rick WA6NHC wrote:
> And because there were variations in how the machines (the actual teletype 
> mechanism) could be set up, what we now presume for <EOL> (End Of Line) is 
> ENTER, it wasn't uncommon to see
>
> <CR><CR><LF><LTR> or variations on the theme <CR> carriage return, <LF> Line 
> Feed (advance one line) <LTR> LeTteRs... so that it was (almost) guaranteed to 
> start each line at a known point.
>
> UOS should NEVER be presumed, even with software.  This was a good 
> question.... now awaiting an answer since we're on the same page :-D
>
> Rick NHC (used a Kleinshmidt)
>
>
> On 4/7/2016 5:32 PM, Jim Sheldon wrote:
>> RTTY acronym, "unshift on space". Machines had to be shifted into figures and 
>> stayed there until shifted back to letters.  Unshift on space was devised to 
>> bring the receiving machine back to letters when a spacebar character was 
>> received to keep from printing gibberish if the shift to letters character 
>> was garbled or (heaven forbid) forgotten.
>>
>> Jim, W0EB
>>
>> Sent from my iPad
>>
>>> On Apr 7, 2016, at 7:25 PM, Gary <vk1zzgary at gmail.com> wrote:
>>>
>>> UOS...Unidentified Operating System?
>>> :-)
>>>
>>>  From one who is clueless....
>>> Gary
>>>
>>> -----Original Message-----
>>> From: "Don Wilhelm" <w3fpr at embarqmail.com>
>>> Sent: ‎8/‎04/‎2016 10:23 AM
>>> To: "elecraft at mailman.qth.net" <elecraft at mailman.qth.net>
>>> Subject: Re: [Elecraft] K3 UOS?
>>>
>>> OK, what is UOS?  Unidentified OffSet?  Or some other recent acronym?
>>>  From an "I hate acronyms subscriber" - plain text is always appreciated.
>>>
>>> Don W3FPR
>>>
>>>> On 4/7/2016 8:06 PM, Jim Miller wrote:
>>>> Does the RTTY decoder in the K3 implement UOS?
>>>>
>>>> 73
>>>>
>>>> Jim ab3cv