The VHF3088T is an affordable high-gain low-profile antenna for use on vehicles. The antenna has an equivalent performance to a 3.5 m whip although less than a third of the height.
The antenna has been designed to resolve all the problems associated with long whips on vehicles such as breakages, interference with high voltage lines or the need to be tied down when travelling at speed.
The antenna is a direct replacement for existing VHF whip antennas and uses the same NATO base support.
The very high performance of the antenna over the complete 30 to 88 MHz range is obtained through the use of low loss PIN diode switching of a low-loss radiating system. An excellent VSWR is assured through the use of a digitally controlled automatic control circuit.
The antenna tuning time is less than 60 µs and so can be used with all modern tactical VHF radios.
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|Frequency Range||30-88 MHz|
|VSWR||< 2.5:1 on tuned frequency|
|Nominal Impedance||50 Ω|
|Power Rating||75 W CW|
|Gain||See Charts Tab|
|Instantaneous Bandwidth||> 300 KHz|
|Radiation Pattern||Azimuth: Omnidirectional
Elevation: As per a 1/4 wave whip
|Polarisation||Vertical when vertically installed|
|Power Supply||Average 5 W @ 24V DC|
|Connector||RF: BNC female
Control: see Diagram
|Design||Low loss PIN diode tuned element with passive radiator|
|Wind Rating||55 m/s = 201 km/h|
|Finish||Polyurethane lacquer, black drab. Black base. Other colours on request|
|Temperature Range||– 55°C to + 71°C|