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The Big Wheel horizontal polarized omni directional antenna 2m 144 145 VHF

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£74.95

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The Big Wheel horizontal polarized omni directional antenna 2m 144 145 VHF

The Big Wheel horizontal polarized omni directional antenna 2m 144 145 VHF

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The "Big Wheel" is a horizontal polarized omni directional antenna. Usually highly directional antennas are used on VHF , which have the capability to bundle the radiated energy in one direction and eliminate interferences from unwanted directions. But these effects are not always welcome. With directional antennas it is nearly impossible to monitor a frequency for signals from any direction. Usually the directional antenna stays in the direction where the most signals are expected from and some rare contact in an other direction is lost. In such cases the Big Wheel is an ideal antenna which should be used together with a directional antenna. Big Wheel antennas are made of stainless aluminum, all other hardware is made of stainless steel. The antenna gain is approx. 3dBD, each Big Wheel has a N-jack (female). By vertical stacking of two Big Wheels you get a gain of approx. 5dBD. To connect two antennas to one coax feed a usual phasing harness can be used.

 

Frequency 144-146 MHz

Gain ca. 3 dBD

SWR 1,2 ... 1,5

Max. Power 500 Watt

Impedance 50 Ω

Diameter ca. 1,2 ca. 0,34 ca. 3,6 m Max.

Mast Diameter 65 50 65 mm

Weight 0,7 0,3 Kg

distance 1300 mm

 Connector N-jack

Material AlMgSi 0,5, all hardware stainless steel

 

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