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  1. #1
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    Default k band on speed monitor sign

    You guys kno those signs they use to tell u your speed....well the ones around here have k band..i noticed while using my x50 i didnt get that much range when i found one...do they have a weaker signal than a actual cop radar?

    thanks

  2. #2
    Speed Demon
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    Sometimes they are full power and sometimes their signals are really weak, The one you seen was a low power one for sure, its totaly normal :wink: .

  3. #3
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    oh ok thanks...i mean it caught it a lil ways back and as i went by it i got full signal strength but it dodnt seem like i had too much distance

  4. #4
    Speed Demon
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    Low power radars on speed signs are common, they dont give you warning from really far. You caught it from how far?

  5. #5
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    there was one part of a road straight,,,,i only cauight it on the straight part...not before it where it was curvy..prolly not even a half mile away

  6. #6
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    By using a lower power setting on a radar sign you greatly increase the chance of the closest vehicle to the sign producing the reading the driver sees.

  7. #7
    Speed Demon
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    A half mile would be normal for that kind of curvy road setup with low power. Low power radar cant be picked up a lot from curves.

  8. #8
    Radar Fanatic
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    I'm pretty sure that the signal power level on a radar unit is fixed. I can't reproduce the explanation that I read but it was basically a matter of the transmitters not being able to produce a different signal strength without the freqency drifting. When you change the range on a radar unit it does nothing to the power, but rather looks for stronger return signals so that only close-in vehicles are clocked.

    That said, there is nothing stopping them from manufacturing a unit that uses less power so that it can operate on solar cells and a battery. Maybe that's why these trailers are harder to detect early.

  9. #9
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    They could be lower power, if they were specifically manufactured that way. There's probably some out there like that, but the ones I see use antennas from regular radar units I believe...

  10. #10
    Speed Demon
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    I havent seen one of these signs around here in a loooong time. Guess what? There was one on my way home today and that sucker was powered up. I did detect it from a good ways, didnt look at mileage of the 1st alert so didnt worry about it. Ill check it out tomorrow on my way back from work.

 

 

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