The ADB Spearhead CP Panel Antenna has a proven record of performance covering twenty years as a leading high power, multi-channel FM CP panel antenna. Moreover, heavy duty galvanised steel forms the screen and dipole assemblies. This also assures long trouble free service under the toughest environmental conditions.
The Spearhead Panel also has massive crossed dipole radiating elements. The focus is on high power multi-channel FM markets. It is ideal for multi-channel operation over the complete FM band from 88 to 108 MHz. Each operating channel achieves a VSWR of 1.1:1
The design provides excellent omni-directional radiation patterns using three panels per tier around triangular towers. The Spearhead panel provides a 6dB beam-width of 120 deg. A combination of unequal power division and appropriate phasing between faces provides the for a wide range of directional patterns.
A feature of the Spearhead screen design is additional strength to allow tower crews to climb on them. Minimising the aerodynamic areas is also consistent with the round cross section members of the galvanised screen and dipole assembly.
Moreover, GRP covers provide weather protection to the dipole feeds. This greatly increases reliability while reducing operating costs. With fully pressurised feed systems and careful attention to dissimilar metal junctions, the Spearhead arrays provide an integrated design. This provides reliability second to none.
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