[GreenKeys] early automatic Morse to Baudot equipment?

[Jim Haynes]

On Thu, 5 Sep 2019, Harold Hallikainen wrote:

> I am so used to copying CW by ear, I can't imagine reading it off a tape
> and transcribing it. I've seen an inked tape recorder at KPH in Pt. Reyes
> Station CA. Also, at the Telecom History Group here in Denver, there's an

I'm aware of two situations for reception by ink recorder and 
transcription by operators.  One is with high speed radio Morse, where
they transmitted at up to 500 wpm, and then operators at typewriters
transcribed the inked tape to hard copy messages.

The other is with ocean cables.  Here the bandwidth of the cable is very
limited, and they transmitted at higher speed then the bandwidth would
allow for undistorted reception.  The transcribing operator had to have
the skill to read the distorted signals and interpret them correctly.
In ocean cables rather than dots and dashes of different lengths they
used opposite polarities.  There are some examples of this stuff in
Western Union Technical Review, but I don't have time right now to give
you a pointer to a specific article.