[GreenKeys] Answerback formats

[Alf Fisher]

Hi Paul,

My first thought was exactly as you say but when I was setting up my 
Creed 444 on i-Telex, I was advised by Henning DF3OE that CR/LF/LTRS 
should be the first three characters in the A/B sequence as what ever 
happens, the machine will start printing the A/B message on a new line.  
I only have spaces for 20 characters and you have to be careful to make 
your A/B code fit within that number.

Regarding sensors, I don't know what sensors would provide outputs on a 
US Teletype machine - that is a question for some knowledgeable GK guys 
to answer.
For British Creed machines, the motor would have to be running for the 
WRU code to be recognised but there is an output to acknowledge that the 
motor is running and on speed and there is another to 'say' there is 
paper tape available.
There doesn't appear to be an output to say there is roll paper 
present.  So hope that answer you question.

Not so much in the US but in UK and Europe it grips me when people talk 
about a Teletype machine when they mean a teletypewriter or teleprinter.

The same problem exists when talking about vacuum cleaners and saying 
Hoover when they are talking about a Dyson or one of some other 
manufacturer.  I once worked with a guy who used to work for Hoover and 
he told me of a person who called to report a fault with their hoover 
when it turned out to be an Electrolux vacuum cleaner.  He used to say 
to them, why don't you get a Hoover hoover and be done with it!

I'll get my coat!

Cheers,
Alf / G3WSD
i-Telex 851515
SIGSMUS G


On 06/09/2019 04:37, ad7i wrote:
> I hope that members of the list can help me with some questions about 
> TTY answerbacks.
>
> Did the answerback text that was transmitted by a TTY in response to 
> WRU include a CR/LF sequence at the end of the answerback ?
>
> Also, what sensors in the TTY had to be in the "good to go" state in 
> order for the answerback to be transmitted?  I'm guessing the "paper 
> present" would be once sensor.  Were there typically other sensors as 
> well?
>
> Paul Newland, ad7i
>
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