[GreenKeys] Apostrophe and Bell

[Bob Camp]

Hi

Well any time you use the terms Standard and Ham in the same sentence 
you run some risks ...

1) RSGB Teleprinter Handbook (1973) gives bell as figs J and ! as figs 
S up front in the "standards" part of the book. Back in the back it 
lists bell as figs J and ' as figs S on a Creed model 7. The same table 
shows the bell as figs S for Teletype machines.

2) Navships 91393 (TT-47 / 49 / 69 / 70) shows the figs S bell.

3) Navships 93788 (Model 28) shows the figs S bell.

So we have the interesting situation that the British think that the 
standard is American (Teletype) and the US Navy seems to think that the 
standard is English (Creed).

Here's what's going on:

The CCIT (international) version of the code uses figs S as the bell. 
The military gear is set up for international operation.

The US version of the code uses figs J as the bell. If your machine 
came out of the Bell system or Western Union it's going to work this 
way.

Gill has a great page about all this at  
http://www.vauxelectronics.com/gil/tty/docs/smith--teletype-codes.htm

For what ever reason the ARRL seems to like the the US version rather 
than the CCIT version. I kind of doubt that you will get the rest of 
the world to agree with the ARRL on this particular point. Since 
roughly half the machines in the US came out of the military (that's 
only an wild guess) it's a toss up as to which standard to follow even 
in the US.

	Take Care!

		Bob Camp
		KB8TQ



On Oct 9, 2004, at 5:55 AM, Russmill47 at aol.com wrote:

> I've made some progress and I'm happy to report that both my ST-6 and 
> M28
> still work.  Now I have a question for the group.  I thought that the  
> ham RTTY
> standard for "Bell" was figs S but now I'm starting to doubt this.  
> Maybe it
> should be figs J?
>
> I copied the ARRL teleprinter bulletin the other night and saw/heard 
> that
> W1AW was transmitting Apostrophe (') as figs S.   Lots of bell ringing 
> at
> certain points in the broadcast!!
>
> Can someone comment about the current standard here?  I'd like to  
> convert my
> M28 to the current, hopefully worldwide, ham RTTY  standard.
>
> 73,
>
> Russ Miller
> WA3FRP
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