"Wayne Jones" wrote in message
.. .
I have used morse code with a key (ve3gqx) but have always wondered how
people sent and recieved code by tapping on pipes etc.
Can anyone explain how this is done? How does one distinguish between a
dot and a dash?

tnx
Wayne
a) They only do it in the movies. It's Hollywood and isn't real.
b) The original telegraph codes used sounders that clicked the code, it
wasn't the same code.

Brad.