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Posted By: Ray Wemple on: 06/22/2009 21:38:30 EDT
Subject: RE: Telegraph insecurity during CW

Message Detail:
My best answer would be that it was fairly common practice to tap (intercept) messages on telegraph lines. I think I remember reading in Plum's that some interceptors tried to respond to messages as the designated receiver, however, because their "Fists" (the way they sent the code) were known, some were detected. Anson Stager(Col.) USMT developed codes to be used on the system and I think by the time the war ended there were nine (9) revisions of it. That was for the Union Army.Tappers used a "Caton" pocket key that was easily carried and could be connected to line being tapped fairly easily. The power for the instrument to work came off the line, I am told. Hope this is helpful to you.
73 de Ray
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