Stacked general purpose horns vs low curvature line array elements
The following illustrations compare the poor coverage characteristics of vertically
stacked general purpose horns with the properly designed low curvature horns found
in the W8L Series line arrays.
Three 30º horns 1m apart, 8kHz
Three tightly arrayed low curvature horns at 8kHz
Vertically spaced, wide coverage horns will have hot spots directly in front of each
horn and will comb (add or subtract depending on the wavelength and relative
propagation times) in the mid and far field. Tightly arrayed low curvature horns
project more coherently. As the number of low curvature line elements is increased
forward projection strengthens and the side lobes decrease.
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