[GreenKeys] Bit rate question

WA5CAB at cs.com WA5CAB at cs.com
Wed Sep 14 11:44:44 EDT 2011


Sam,

You forgot the Start bit.

In a message dated 09/14/2011 10:04:25 AM Central Daylight Time, 
etler at cs.wisc.edu writes: 
> Playing around with some math there's two possibilities I found for this.
> First, if you used a 6.5 unit code per bit (five data bits plus a 1.5 unit
> stop bit) you end up with almost exactly 564 characters per second which
> works out to 94 words per minute. Sort of an odd speed. It also sort of
> works if you just use a 6.0 unit code (1.0 unit stop bit). Then you get
> almost exactly 611 cps or 101.83333... wpm. Doesn't work quite as nicely
> though the 611 is pretty clean. It's possible there's other data bit + 
> stop
> bit + ??? bit combinations I didn't think of that would work equally well.
> 
> Or maybe I'm way off here and it's something completely different.
> 
> So does anyone know what the deal is with this?
> 
> sam
> 

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