Posted by Bill Fitzmaurice [ 64.12.116.135 ] on July 27, 2004 at 13:55:59:
In Reply to: LA HF horns posted by DSM on July 26, 2004 at 22:26:44:
What's critical is the distance between the radiating planes of the individual elements, which ideally is kept under a wavelength. This rules out 1" domes that have 2" wide mounting flanges but other options are available. A simple rule of thumb states that if the radiating plane of the array comprises are least 90% of the meaured vertical plane then you're OK. Where horns are concerned the radiating area is the horn mouth, exclusive of the mounting flange.
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