Codebreaking…

January 18th, 2009

Hi again…
the following question is rather strange, many of you may think, but it is
nevertheless one I never got an answer on.
It’s about Japanese codes and codebreaking and radio transmissions on
the whole.
I just don’t get it…
If I am not mistaken, radio transmissions work on the basis of morse.
Now, what kind of system did the Japanese use? Morse makes no sense here, does
it? Second, how did the US know, after solving the code and having clear text
before them, which succession of dids and dads meant what?
Also, how does coding work with regard to Morse? The codes I know are using
single letters (for example “AG”) to indicate a word or phrase (for example
“attack”). Did the Japanese employ roman letters for this purpose or arabian
numbers or something similiar?

PLEASE HELP!

Tim

Tim Lanzendoerfer | “I have just taken on a great
Amateur Naval Historian | responsibility. I will do my
Email: BWV_Wiesbaden@t-online.de | utmost to meet it” – Nimitz
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The United States Navy in the Pacific War 1941 – 1945
http://www.microworks.net/pacific
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