[GreenKeys] Excerpt from "The Story of a Storm"

David I. Emery die at dieconsulting.com
Sat Aug 26 21:44:23 EDT 2017


On Sat, Aug 26, 2017 at 08:00:44PM -0500, Jim Haynes wrote:
> I think but am not sure that the weather TTY service was originally 60 
> wpm.  Then about 1960 the ADIS system went into service and speed went
> to 100 wpm.

	All the heavy metal real model 28 based weather TTY I ever saw
at airport FSSes and WFOs was at 100 WPM in the 60s... as were a lot of
the FAA TTY circuits for flight info (NOTAMS) and similar.

	I vaguely remember a 60 WPM (might remotely possibly have been
75 WPM) "weather wire" circuit with public forecasts, warnings and
weather reports  mostly in English text existed for distribution to the
news media. (There is such a circuit now on C-Band NOAAPORT and the GEOS
satellites but in upper/lower case ASCII and computer to computer IP
format with no defined "speed").

	Some of the HF RTTY weather broadcasts of that era were 60 WPM
(and some 67 or 100).... but the US military (Navy in particular) ran
100 WPM HF weather circuits (in the clear).

	I did run across 14/15/19 machines with the weather symbol set -
so there must have been an era when a lot of those were used with
weather traffic at 60 or 67 WPM as they really didn't work reliably any
faster.


-- 
  Dave Emery N1PRE/AE, die at dieconsulting.com  DIE Consulting, Weston, Mass 02493
"An empty zombie mind with a forlorn barely readable weatherbeaten
'For Rent' sign still vainly flapping outside on the weed encrusted pole - in 
celebration of what could have been, but wasn't and is not to be now either."



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