[GreenKeys] CRLF or not CRLF?

[Paul Heller]

It sounds to me like what is being discussed here is the actual end device vs. the transmission between two end devices. In our conversation thus far, transmission topics have included modulation/demodulation, speed changes, store and forward mechanisms, encoding changes (baudot / ascii) and signaling (currentloop vs. rs232). End devices: it seems everyone agrees as long as it is a mechanical teletypewriter.

I for one would not put much restriction on the transmission. But I'm a novice to contests, and I previously mentioned, and don't understand the intent and purity behind them, but I suspect when things are bent too far, people feel cheated. 

I'll even bend to say that RS-232 to an ascii teletypewriter with gears, shafts, grease and oil is OK. What I would not like is something like a Decwriter LA36 being the end device rather than a model 33! And that's the tricky part.

If the powers that be say conversion from current loop 5 bit to 8 bit is not allowed, then we knock out 33s and go back to 32s, 15s, 28s, etc. 

As best I remember, there were all sorts of things Dave needed to do to even make things workable in a contest due to the microsecond mentality out there. These included support to handle connecting/answerback, logging, acknowledgements, etc.  Without those, he could not even play in the same ballpark. Apparently we'll all need those if we want to participate unless there is a dedicated band for mechanical only and things go "slower".

When ham radio is about the spirit, the invention, the ingenuity, the friendship, the fun, I'm IN. When it is ONLY about winning, I'm OUT.

Paul
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> On Jul 30, 2017, at 8:55 AM, Dave Horsfall <dave at horsfall.org> wrote:
> 
> On Sun, 30 Jul 2017, Jeffrey Angus wrote:
> 
> [...]
> 
>> Things like the MFJ 1289, Kantronics KAM and AEA PK-232 are not terminal units. They are decoders, they have to be told what they are decoding. ASCII or Baudot, and what speed, 60, 66, 75, 100, 110 WPM etc. and their output is an ASCII 8-level code regardless of what the input signal is. A 5-level Baudot two-tone signal input is output as an 8-level ASCII signal at either RS-232 or TTL signal levels.
> 
> Thank you for a most cogent explanation of the distinction!  Odd as it may seem, it never occurred to me before.
> 
> -- 
> Dave Horsfall DTM (VK2KFU)  "Those who don't understand security will suffer."
> 
> 
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