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  1. #1
    Good Citizen
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    Default Ka band warning?

    Do the high end RD's give false warnings on Ka band? One store near where I live gives me a warning of Ka band when I am on the road(a 2 or 3 reading) but when I drive close to the door the reading goes up to 9!! :!:
    so my question is do Some doors use Ka band frequency or my inexpensive RD is going nuts :?:

  2. #2
    Professional
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    Default Re: Ka band warning?

    Quote Originally Posted by zookybeanz
    Do the high end RD's give false warnings on Ka band? One store near where I live gives me a warning of Ka band when I am on the road(a 2 or 3 reading) but when I drive close to the door the reading goes up to 9!! :!:
    so my question is do Some doors use Ka band frequency or my inexpensive RD is going nuts :?:
    well for me on my x50 i have own over a month now and no KA false alerts not one false alert yet!. unless i have PoP ON thats a different story .but on my lower end whistler and low end bel express795 i get a false alerts on 1 store only ka fal;se alert when i am real colse to them.

  3. #3
    Good Citizen
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    Default Re: Ka band warning?

    Quote Originally Posted by carlito
    Quote Originally Posted by zookybeanz
    Do the high end RD's give false warnings on Ka band? One store near where I live gives me a warning of Ka band when I am on the road(a 2 or 3 reading) but when I drive close to the door the reading goes up to 9!! :!:
    so my question is do Some doors use Ka band frequency or my inexpensive RD is going nuts :?:
    well for me on my x50 i have own over a month now and no KA false alerts not one false alert yet!. unless i have PoP ON thats a different story .but on my lower end whistler and low end bel express795 i get a false alerts on 1 store only ka fal;se alert when i am real colse to them.
    DO you think that the low end RD's alter the frequency reading? Or they are unable to distinguish between one frequency from another?
    I think that door does work on Ka frequency.

  4. #4
    ES13Raven
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    Default Re: Ka band warning?

    Quote Originally Posted by zookybeanz
    Do the high end RD's give false warnings on Ka band?
    I have never had a Ka false with my X50 or RX65.

    One store near where I live gives me a warning of Ka band when I am on the road(a 2 or 3 reading) but when I drive close to the door the reading goes up to 9!! :!: so my question is do Some doors use Ka band frequency or my inexpensive RD is going nuts :?:
    My Pro58 would Ka false on other driver's Cobra radar detectors, and also on X band in the area. (3rd harmonic of X = Ka)

    Its most likely your inexpensive detector :wink:

  5. #5
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    Default Re: Ka band warning?

    Quote Originally Posted by zookybeanz
    Do the high end RD's give false warnings on Ka band? One store near where I live gives me a warning of Ka band when I am on the road(a 2 or 3 reading) but when I drive close to the door the reading goes up to 9!! :!:
    so my question is do Some doors use Ka band frequency or my inexpensive RD is going nuts :?:
    Whistler especially are known for mis-indentifying K-Band sources as Ka, other cheap detectors might do it too.

  6. #6
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    Default Re: Ka band warning?

    Quote Originally Posted by jimbonzzz
    Quote Originally Posted by zookybeanz
    Do the high end RD's give false warnings on Ka band? One store near where I live gives me a warning of Ka band when I am on the road(a 2 or 3 reading) but when I drive close to the door the reading goes up to 9!! :!:
    so my question is do Some doors use Ka band frequency or my inexpensive RD is going nuts :?:
    Whistler especially are known for mis-indentifying K-Band sources as Ka, other cheap detectors might do it too.
    Ihave a $100 radioshack RD it identifies the K,X bands near that store but goes full strength near that door(ka).

    So are you guys saying that no door as yet uses Ka band width for door openers? Is there a way to check the frequency of this door?

  7. #7
    Professional
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    Default

    to tell u the truth i dont think any door openers run on the KA FERQ YOU ARE GETTING harMOnics like posted above.

  8. #8
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    Default

    I don't think you would get harmionics produced in the Ka band that a detector would alert to, unless the motion sensor was WAY off freq. More than likely, it is somehow crappy signal processing by the detector.

  9. #9
    Lead Foot
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    May 2005
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    Default Re: Ka band warning?

    Quote Originally Posted by zookybeanz
    Quote Originally Posted by jimbonzzz
    Quote Originally Posted by zookybeanz
    Do the high end RD's give false warnings on Ka band? One store near where I live gives me a warning of Ka band when I am on the road(a 2 or 3 reading) but when I drive close to the door the reading goes up to 9!! :!:
    so my question is do Some doors use Ka band frequency or my inexpensive RD is going nuts :?:
    Whistler especially are known for mis-indentifying K-Band sources as Ka, other cheap detectors might do it too.
    Ihave a $100 radioshack RD it identifies the K,X bands near that store but goes full strength near that door(ka).

    So are you guys saying that no door as yet uses Ka band width for door openers? Is there a way to check the frequency of this door?
    I don't beleive there are any Ka door openers since the cost would be more. K band openers are pumped out in such volume that keeps them a lower cost item, and the other reason is I dont know if the FCC licensing has allowed that use or not.

  10. #10
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    Default

    Doors do not use Ka.

    I have had my old Bel985 for 3 years, never a false Ka.

    You my friend have something seriously wrong with your RD or it is a very crappy RD. As someone said the X band may be misinterreted as Ka on your RD. Don't know if you can or would make a difference turn X band off.

 

 

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