Subj : Morse Code
To   : STAN PHILLIPS
From : Richard Brumbaugh
Date : Mon Sep 04 2000 01:35 am

On (02 Sep 00) STAN PHILLIPS wrote to ROY WITT...

 SP> Code is often sent by a light source. (including flashlights)

If you have a good STRONG light source, one that reaches the receiving
location you can talk over a light source with voice.  That was
demonstrated to my science class in the 30's.
Of course, that can not be done if the light is very far away, or
weak.

Best regards, (73)
Dick, W5MFD since 1946
richard.brumbaugh@gratisnet.com

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 * Origin: A School-Free Gun Zone * Tulsa OK * USA (1:170/302.17)

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