[RTTY] RTTY History

[Doug Faunt N6TQS +1-510-655-8604]

IIRC, hams used RTTY with on-off keying before FSK was allowed to
them.  See my earlier post quoting from "A Phone Of Their Own", which
gives dates earlier than 1953.

And my memory say that AFSK was used on VHF earlier.  Note the
qualification in "FSK became legal on the HF bands".

73, doug

   Date: Tue, 13 Mar 2007 13:23:35 -0400
   From: Dave Barr <k2yg at verizon.net>

   N9PUZ asked about when Amateur RTTY started.

   Check out:

   www.rtty.com/history/index.htm

   In an article at this web site Bart W6OWP wrote:

   "By the end of WW2, FSK had made Radioteletype a practical reality in 
   the military and commercial fields. It was an emission, however, not 
   available to hams operating HF until February, 1953"

   "It was February 20, 1953, that FSK became legal on the HF bands. At 
   1235AM I contacted W6RZL for my first FSK QSO. We concluded the contact 
   at 110AM. No other RTTY was heard and there was no answer to a RTTY CQ 
   so I closed down for the rest of the night. W0UUL was the only other 
   contact that first day of FSK operation. The next day, Bill Snyder, 
   W0LHS, was worked. Bill, in more recent years, wrote "The Digital Bus" 
   column in WORLD RADIO."


   So was it the late '40s or the early '50s???

   K2YG


   _______________________________________________
   RTTY mailing list
   RTTY at contesting.com
   http://lists.contesting.com/mailman/listinfo/rtty