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  1. #1
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    Default KA false from a cobra, with no "J", repeatable. WT

    Coming home from town today, I got a KA alert ramping up normally for what I am used to from a radar car. Went past a car parked on the side of the road in a small gravel lot. and it quit, no rear arrow, no nothing! Went farther up the road expecting to see the reason for the alert. ( possible instant-on from a sitter) and nothing, so I turned around to see where the leo was sitting but suprised I didn't see him the first time through. I pass the parked car again, and KA from the rear dropping as I get farther away. ( what, an unmarked toyota? No way!) Turned around, went back towards the parked car, and it ramps up on KA again,then I pulled up (he was sitting inside reading a map) and I asked him what brand detector was in his car, he said "how did you know?" I told him about my detector alerting, and I asked if his was a cobra, Gee, guess what, a cobra.

    Now, wasn't mine supposed to give me a "J" to let me know it screwed up? and alerted to a bogus signal?

    I've read about all you'se guys barking about the V-1 "J"-ing out real threats, and mine won't even "J"-out a bogus threat. what gives?

    This guy did ask what I was using, and after I told him the V1, he said he had heard of them but never saw one in person. So we BS'd for a bit about RD's ,and I helped him find his way.

    So, who else has had confirmed falses from another RD, and No "J" to let you know it was bogus? It continued to alert at full strength the whole timewe talked (muted of course, 1 in the counter) This is way odd, since I have seen the "J" 3 times before and was able to confirm that no LEO in the area each time.

    (In my area of the boonies, it could be a month between seeing cops on the road) Just the way I like it,

  2. #2
    Good Citizen
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    Jul 2005
    Location
    Westchester, NYC, and Capital Region, NY
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    Default

    What version of the V1 do you have? Push the power button in when you turn it on, and keep holding it in until the display lights up, then push the power button in and release, it should display the firmware version one # at a time, IE:
    3 - 8 - 2 - 6

    I have firmware 3.826, and I haven't had the "J" bug occurr with it yet.. my first POP2 unit did it, and then the 'fix' for it, 3.818 still did it, and 3.819 still did it.. I went to 3.826, and no problems since.. so it's fixed, as far as I can tell..others report the problem with 3.826 tho.. so.. who knows.. if I notice it again, I'll post about it and talk to V1.

    The J function doesn't J out all bogus signals, if the crapra is putting out a signal real enough for the V1's J algorithim, it will probably not remove it, and continue to alert you - better safe than sorry! I think something like if it sees the 2nd and 3rd harmonic for the signal, is how it determines 'J'unk signals

  3. #3
    Professional
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    Default

    I am on the newest software, New purchase this summer. everything is in factory settings with nothing tweaked or disabled.

  4. #4
    Radar Fanatic
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    Feb 2006
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    Bay City, Michigan
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    Could be a fluke - its not a perfected thing yet. It'll get better as revisions are released.

  5. #5
    Professional
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    I've had the same thing happen to me. Parked car with the detector running, I too made several runs up and down the street to see what the heck was causing the Ka alert. No J.

    V1 junked a Richardson police Ka again TWICE after I restarted. This is complete BS. V1 junked it out TWICE. Maybe you didn't catch that. TWO FUC*#@G TIMES.

    Somebody had better fix this bull$hit at VR like now.

    [/rant]

  6. #6
    Radar Fanatic
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    Bay City, Michigan
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    Texas, I understand your mad - but did you really need to create your own topic about this - and than paste the exact same thing??

    -WOP

  7. #7
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    well i changed the title....i was wanting to point out the other aspect of the J problem

  8. #8
    Radar Fanatic
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    Apr 2005
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    Indianapolis, IN
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    Some Cobras transmit such a strong Ka signal that V1 is treating it like real radar, hence no "J." It is overriding the false alert suppression.

    GTO_04

  9. #9
    Professional
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    Quote Originally Posted by GTO_04
    Some Cobras transmit such a strong Ka signal that V1 is treating it like real radar, hence no "J." It is overriding the false alert suppression.

    GTO_04
    If that is the case, then all you people in Banned areas, need to start selling cobra's for a side business, the Spectre ( pronounced "Speck-tree according to our fearless leader, LOL) would be so overwhelmed by that signal the cops would give up!!

  10. #10
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    Default Re: KA false from a cobra, with no "J", repeatable

    Quote Originally Posted by Switchback
    So, who else has had confirmed falses from another RD, and No "J" to let you know it was bogus?
    I've had that happen couple times. Usually moving so I can't determine the mfg of the offending RD. I've also had it J a real threat. As I recall the last firmware version prior to 386 had very aggressive logic so it would J out more often. I suspect that VRs attempt to address the J-ing of real threats, they turned the threshold down so we now get a few more junk detectors coming in as real threats.

    I think this issue is well known here and to VR. While I hope there is some improvement in the software, this issue hasn't been a problem for me for the following reasons.

    1) In the cases where the V1 J'd out a real threat, prior to the J it gave me plenty of warning to slow if I needed to and I was able to make visual confirmation prior to the J appearing.

    2) In cases where it didn't J out another detector, I was in heavy traffic and unable to travel at the PSL. I suppose if I where in the country and I came across a parked car with a Cobra, then that'd be a different story. However the extra notice of an occupied car on the shoulder is not such bad thing, as he may re-enter the roadway without seeing me.


    The other challenge I'll extend to everyone that experienced a J'd out real threat is this. Can you say for certainty that there were no other radar detectors in the same vicinity? I can say for certain that in ALL cases when my V1 J’d out a real threat, there was lots of other traffic around, so it could have been picked up a second source after picking up the LEO then junked out both Ka sources at the same time as reporting a second bogey.

    One test I'd like to see GOL do is fire Ka gun at the V1, hold it on then power up a junk detector. I doubt that the VR could junk out one Ka signal and still report the second one. Interesting test though.

    edit for spelling.

 

 

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