The CD51 Series UHF ground independent Mopole antennas are versatile and popular antennas, providing excellent performance in virtually any mounting position.
When mounted on a vehicle gutter or similar position, these UHF Mopoles provide optimum performance with a largely omnidirectional pattern. Due to the low angle of radiation inherent in the dipole antenna pattern, a 4.0 dB improvement in performance is typical when compared to a quarter-wave whip in the centre of a metal roof.
The end fed design of the UHF Mopoles incorporates a truly unique transformer in the base section. In this patented feed assembly, the dielectric of the coaxial feeder cable is trimmed to a set length and then introduced into the coil in termination.
The result is a precisely matched feed which is so consistent that tuning to frequency from a chart becomes a matter of course.
CD51 antennas are fitted with a flexible nylon radome over a copper element - ideal in industrial applications.
There are two styles of mounting arrangements offered.
The CD51-xx-70 versions mount via a threaded stud and nut assembly. The antenna can be easily terminated, tuned and re-terminated in the field using the instructions supplied. Its patented design allows the coaxial cable to be replaced in the field without specialised tools or soldering.
The CD51-xx-50 versions mate with the MBC coaxial base providing an internal, permanent connection in a completely sealed unit. The MBC base is easy to install and allows the entire antenna to be removed and replaced at will. |
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