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  1. #1
    Newcomer
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    Default Why Do Trains Set Off K-Band?

    Around here I always get K-band from the front of a train...what's the cause??

  2. #2
    Professional
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    Same thing happened to me this past weekend. I dont know what it is but your not the only one.

  3. #3
    Yoda of Radar
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    They are probably SWS transmitters, should decode as "TRAIN APPROACHING".

  4. #4
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    Default

    Nope, no SWS here, just plain old K-Band. I'm pretty sure it's a distance sensor on the train.

  5. #5
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    Quote Originally Posted by SmaartAasSaabr
    They are probably SWS transmitters, should decode as "TRAIN APPROACHING".
    I have SWS turned off...it's K-band for sure...

  6. #6
    Old Timer
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    Default

    Soem SWS's detectors will report it as K band.

  7. #7
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    Default

    I looked around a bit, and it seems that there is a system available for trains that manage friction similar to ABS in cars.

    The system uses radar to measure the ground speed of the train, and them compares this data to wheel speed sensors. Then the controls can use this information to speed up or slow down the wheel speed, to prevent the wheels from "slipping" etc...

    Not sure if that is causing the alerts though...

    Jim

  8. #8
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    Quote Originally Posted by jimbonzzz
    I looked around a bit, and it seems that there is a system available for trains that manage friction similar to ABS in cars.

    The system uses radar to measure the ground speed of the train, and them compares this data to wheel speed sensors. Then the controls can use this information to speed up or slow down the wheel speed, to prevent the wheels from "slipping" etc...

    Not sure if that is causing the alerts though...

    Jim
    Cool...sounds like that's what it could be...

  9. #9
    Radar Fanatic
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    Default K band alerts

    Jimbonzz is right. Some electro motive series diesel engines incorporate radar in their anti wheel slip controls. That definitely gives you the K band alert. Good thing cars don't use it eh??

  10. #10
    Power User
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    Default

    sounds simalar to the tractors for cutting wheat, they have a Kband radar that measures the speed of the rotors..

 

 

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