Slide 6 of 19
The Spitfire array was developed through extensive computer modeling with the popular
EZNEC software. The plot shows the elevation pattern of the Spitfire array compared to a
single vertical. At low elevation angles, the gain over the single vertical is about 5 dB.
Note that the vertical plane lobe is quite fat and provides significant higher
angle radiation where the single vertical does not. This attribute may actually prove to
be advantageous for DX under the high-angle propagation conditions which are believed to
predominate at times over low angles on 160 meters.