[GreenKeys] What speed is my machine?

Nick England navy.radio at gmail.com
Thu Jan 30 20:36:20 EST 2025


Here's a chart -
http://www.navy-radio.com/tty/speed-feed.gif

Note - OPM is Operations Per Minute
Note - 5 data bits means 7 or 7.42 "bits" per character depending on the
stop pulse length
Note - there are 6 characters per standard word - 5 letters plus a space.
Note - the main shaft on a printer runs faster than 1 character per rotation
          e.g. for 60wpm 368 OPM, the shaft is running at 420 rpm

There was an interesting discussion on timing back 3 years ago
http://mailman.qth.net/pipermail/greenkeys/2022-January/054649.html

Cheers.
Nick England K4NYW
www.navy-radio.com


On Thu, Jan 30, 2025 at 8:08 PM Doug Jackson via GreenKeys <
greenkeys at mailman.qth.net> wrote:

> Is somebody able to explain the relationship between words per minute and
> bits per second?
>
> It obviously depends on 5 bit vs 8 bit, and some standard associated with
> the length of an average word.
>
>
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