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Thread: Police radaring

  1. #1
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    Default Police radaring

    Can the police have there radar on the front and rear at the same time or do they have to switch it back and forth

  2. #2
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    Default Re: Police radaring

    Quote Originally Posted by whistler
    Can the police have there radar on the front and rear at the same time or do they have to switch it back and forth
    They have to switch back and forth
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  3. #3
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    Default

    There's one Stalker gun (I think) that can radar both directions at once with a dual display, but it's expensive. Most dual antenna units are one direction at a time.
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  4. #4
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    Default

    Also the Genesis II DIRECTIONAL can track front and rear at the same time.

    From their website:
    Advanced Target Identification

    Whether the patrol vehicle is stationary or moving, the Genesis II Directional makes it easier to identify your target. You decide which direction of traffic to measure. You can track vehicles going in both directions simultaneously, or isolate your focus to traffic moving in either direction.

  5. #5
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    Default

    Two antennas are not required to sense traffic in both directions, a lot of units can do that, including some handhelds. Direction can be determined by the frequency of the doppler signals returned. For example, if the return is higher than than the transmit freq = approaching vehicle, if the doppler return is lower = receding vehicle.

    Jim

  6. #6

    Default

    Quote Originally Posted by jimbonzzz
    Two antennas are not required to sense traffic in both directions, a lot of units can do that, including some handhelds. Direction can be determined by the frequency of the doppler signals returned. For example, if the return is higher than than the transmit freq = approaching vehicle, if the doppler return is lower = receding vehicle.

    Jim

    what jim is saying I believe is that even older radar can do this since speed measurment in these units isn't direction dependent only that the antenna is facing the traffic you want measured. The new units can pick out oncoming traffic from on going traffic and measure each one seperate from the other...

 

 

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