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  1. #1
    Radar Fanatic
    Join Date
    Jun 2005
    Location
    Fort Worth, Texas
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    2,274

    Default Do the Arrows ever lie?

    should I totally depend on the V1 Arrows?

    I know the V1 has some false alerts but will the ARROWS ever give a false direction

    I ask because when I get Ka from the rear.... I pause... look behind.... if I dont see the cop and there are a lot of cars I dont slow down

    Also the other day I got Ka alert from the side and it was alerting a good 5 seconds (was going 70MPH).... this I thought couldnt be a threat because its from the side

    So are the V1 arrows consistent?

  2. #2
    Old Timer
    Join Date
    Jun 2005
    Location
    New Hampshire
    Posts
    6,806

    Default

    Reflected signals can throw the arrows off, esp. in the city but for the most part they're accurate on the highway.

    Sometimes you can get ghost arrows or bogeys depending on the rev. level of your V1, but in that case the flashing arrow should point you to the real threat.

    It's best to slow down when you get an alert, epecially if it's Ka and relatively strong. Chances are it's the real thing.
    If I'm passing you on the right, YOU are in the wrong lane!

    If speed kills, how come I'm still alive?

    Active Countermeasures: V1 3.858, Escort Redline, Beltronics STi-R+, LI Dual 7.1x CPU/8.7 Heads (front)
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    Vehicle: 2002 Audi A4 1.8T Quattro
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  3. #3
    Cheetah Rep
    Join Date
    Feb 2005
    Location
    Phoenix, Arizona
    Posts
    2,567

    Default

    Do the arrows ever lie?
    yeah they do, and they talk behind your back too. :wink:

    Seriously, for the most part they're pretty accurate, but definately not 100%.
    As with any detector, rely on signal strength first, then direction. i have seen them show opposite of the source.
    i believe the side arrows basically look at the signal strength front and rear and if they're about equal it lights up the side arrow.

    like kpatz said, reflections can throw them off. i think i even caught that on video, where an overpass caused the arrows to read incorrectly for a moment. i've seen a few situations where they were off a bit, but overall they have worked well for me. let me see if i can find the link.
    Here:
    2.66 MB small
    www.donspc.com/Forum/V1kaarrowssm.wmv
    or
    8.14 MB large
    www.donspc.com/Forum/V1kaarrowslg.wmv

    Either way the answer to both questions is No, not 100% of the time for the reasons that have been stated so far by everyone (well, me and kpatz anyway.)
    they are useful most of the time, just evaluate the situation and go from there.

  4. #4
    Speed Demon
    Join Date
    Jun 2005
    Posts
    585

    Default

    Like they said , Reflections are a big factor in this, you got to keep in mind the ways it can reflect when you get an alert.

  5. #5
    Good Citizen
    Join Date
    Jun 2005
    Location
    Central Arkansas
    Posts
    108

    Default

    I passed a Ka alert the other night and for about 2-3 seconds after I passed him the arrow still pointed Up, after that it finally caught up with the radar and switched quickly to the sides then constant on the rear.

    I figure it's 'normal'

  6. #6
    Manufacturer
    Join Date
    Dec 2004
    Location
    Bozeman, MT
    Posts
    3,205

    Default

    We found that sometimes V1s will report to a rear threat when in fact the threat is from the front.

    Why? In certain cases we were followed by trucks which make great radar reflectors.

    First and foremost if you feel the bogey is from a bonafide source, obviously you should be minding your speed.

    The direction indicators are most helpful, IMHO to help confirm a passing "threat."

    Veil Guy 8)
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  7. #7
    Radar Fanatic
    Join Date
    Mar 2005
    Location
    Cleveland, OH
    Posts
    1,561

    Default

    My rule of thumb is this: If the V1 alerts KA I slow down fast. Then worry about the arrows later.

    The arrows are only a rough indicator of where the radar is coming from, rear or side does not mean no danger....


    What the arrows are very usefull for however is when you are in an unfamiliar area and you have say a K band source. As you pass by the highway sign, you'll want to look for the arrows to go side then back.... if they stay up front, the likely culprit is something other than the sign you passed and until you can figure out who it is keep moving.

  8. #8
    Yoda of Radar
    Join Date
    Mar 2005
    Location
    Rottweiler Land
    Posts
    10,420

    Default

    They work much better than I thought the would!!

  9. #9
    Professional
    Join Date
    May 2005
    Location
    New England
    Posts
    1,071

    Default

    Ensure that the V1 has a clear view of the rear window. I had mine up a little too high and it would catch all sorts of reflected signals from the rear side of the rear view mirror. I lowered it about 1" and the performance showed a BIG improvement in accuracy.

  10. #10
    Professional
    Join Date
    Jan 2005
    Location
    Washington, D.C.
    Posts
    968

    Default

    I have yet to have my V1 lie to me about direction.

    as i pass the cop or whatever, the arrows are right on cue. ^ <> v no problems!

 

 

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