[RTTY] FSK origin

[Eric - VE3GSI]

In part from QST, November 2000 - Page 82 NEW Book Reviews:

A PHONE OF OUR OWN: THE DEAF INSURRECTION AGAINST MA BELL
By Harry G. Lang
Published by Gallaudet University Press, 800
Florida Ave NE, Washington, DC 20002-3695;
tel 800-621-2736; TTY 888-630-9347; http://gupress.gallaudet.edu. 

Hardcover, 6 × 9 inches, 256 pages. ISBN 1-56368-090-4. $29.95.
Reviewed by Steve Ford, WB8IMY
QST Managing Editor

If you’re compiling a list of technological achievements pioneered by
Amateur
Radio operators, don’t forget to include teletype (TTY) terminals for the
deaf—the
forerunners of modern TDDs (Telecommunications Devices for the Deaf). As
chronicled by Harry G. Lang in A Phone of Our Own: The Deaf Insurrection
Against Ma
Bell, the creation of versatile communication devices for the deaf was
hardly a straightforward
process. It’s a story of innovation and frustration that spans two decades.
The late Robert Weitbrecht, W6NRM, was a major player in the early days of
Amateur
Radio radioteletype, or RTTY. He was instrumental in getting the FCC to
expand ham
RTTY privileges after World War II.

Weitbrecht was born deaf, so he was well aware of the difficulties deaf
individuals
faced when attempting to use non-visual communication devices, such as
telephones. 

<snip>
De Eric - VE3GSI

-> -----Original Message-----
-> From: W0YR at aol.com
-> Subject: Re: [RTTY] FSK origin
->
->
-> There was a story in QST within the past 18 months about a
-> ham who "invented"
-> the walkie talkie.  He also developed a system to transmit
-> teletype signals
-> over radio.  He invented a lot of other things, too.  I am
-> sorry I can't
-> remember his name or call.  I do recall that his picture was
-> shown along with the
-> QST story.  Radio-teletype was not developed for amateur
-> use.  Later, amateurs
-> (once the FCC okayed FSK transmission) adapted the FSK techniques. 
->
-> Others have correctly written that the first amateur uses of
-> FSK involved 850
-> Hz shift. 
->
-> If anyone has access to the December QST issues of recent
-> years, he might
-> look in the index and find the article.   It's worth reading
-> and I wish I had
-> saved it.
->
-> 73
->
-> Mike
-> W0YR