The Model 545T transportable dual take-off angle antenna provides the features most desired in a tactical antenna required to communicate over any range at any azimuth. To achieve this performance, the Model 545T, and its fixed counterpart the 545F, are omnidirectional, and radiation is vertically steerable. They generate independent low and high beams, optimising gain for any communications distance.
The 545 is a four-arm spiral antenna that can be excited in two orthogonal modes, each of which is horizontally polarised and essentially omni-azimuthal at all elevation angles.
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