Posted by DMoore [ 71.39.40.4 ] on February 08, 2007 at 19:02:07:
In Reply to: ?Horn Questions? posted by Cuppa Joe on February 07, 2007 at 22:53:38:
PWK gave the only reference I have ever found concerning the proportions of a rectangular horn mouth in one of his patents (try the 1945 Khorn patent) as being between 1/6th and 1/11th Fc wavelength in its longest dimension.
DM
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