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Does any one know if is advisable to use dual antennas in 430 MHz ? I mean if you take a cable like this [ http://www.wilsonantenna.com/coaxial.php ] and you take two 1/4w whip antenna (magnetic mount )and you put them on to the roof of the car. Can you obtain extra gain or can you reach farther ?
That cable is used for CB where truckers will have an antenna on each mirror mount. In that application it acts as a directional system increasing the gain to the front and rear and less for the sides. Which is ideal for trucks on the road. I've never heard of it being used on UHF.
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