"Cecil Moore" wrote in message
. com...
clfe wrote:
How do you send a 'dash' by tapping on a pipe? You
apparently could revolutionize prison communications
by providing an answer to that simple question.
--
73, Cecil http://www.qsl.net/w5dxp

How about a fast double tap on the pipe (or bar) to signify a "dash"? It's
not an elegant solution, but could be made to work. Those guys are probably
not gonna try for 30 characters per minute anyway.

Harold
KD5SAK