HP-905 vertical in a BMW

Discussion in 'Blinder' started by Vortex, Aug 4, 2012.

  1. Vortex

    Vortex Making Videos Administrator Premium Member

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    LI has a vertical BMW edition for their jammers. How do the HP-905's do vertically? Is there a BMW version or do the normal ones do fine vertically? Has anyone done any testing with this orientation?
     
  2. Spartacus

    Spartacus PSL +5 Intermediate User

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    Ahhhh, I see that you are in Seattle, Wa. I'm in Tacoma but your question will be interesting to see what the pros say.
     
  3. Blinder Dude

    Blinder Dude User-Requested Closed Account Closed Account

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    PM me for Blinder testing channel
    Vertical install on a Hummer H2. HP-905 Quad one horizontal under each headlight and two vertical CM'm.
    After testing I could have installed a HP-905 triple one horizontal under each headlight and one vertical CM's
    The vertical install preformed well.
    Two vertical on a BMW should test great.
     
  4. Vortex

    Vortex Making Videos Administrator Premium Member

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    So you did all 4 up front? 2 horizontal, 2 vertical?

    I guess my question has to do with two verticals up front and two horizontals in the rear.
     
  5. mrkookm

    mrkookm PSL +15 Advanced User

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    Vertical will work, but not efficient with regards to coverage. The polarization of the output and will be weak in off axis situations. Placement has to be good.

    Blinder comparison above is using 3 well place sensors which is very different from say 2 ok placed sens.


    - from my iP via Tapa....
     
  6. ersin

    ersin Premium Member Advanced User Premium Member

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    I'm not sure exactly what mrkookm is saying. Perhaps polarization does play a role in jamming ability but I'm not sure that's what he's saying. However, the jamming signal is wider horizontally than vertically (when the heads are mounted normally, i.e. horizontal). If you mount the head vertically then the jamming signal will instead be wider vertically and not as wide horizontally, and this is where I think jamming performance will suffer vs. regular (horizontal) mounting. It may be better when the lidar gun is being shot from an overpass, but will more likely miss the lidar at the (most of time) side of the road.

    I have not heard that Blinder has a rotated HP-905, aka BMW edition. At least not yet.


    Cheers.
     
  7. mrkookm

    mrkookm PSL +15 Advanced User

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    Best to get a sensor designed for a vertical install, i.e., its output will be horizontally polarized aka wider than its is tall. As opposed to a sensor which will throw out a taller output with little width.






    - from my iP via Tapa....
     
  8. Blinder Dude

    Blinder Dude User-Requested Closed Account Closed Account

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    Real World Blinder will save you horizontal or vertical.
    Then 905 is smaller and allows horizontal mounts where the 7 series unit was to wide.
     
  9. Riptide

    Riptide Placement Expert Advanced User Premium Member

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    Sure if your getting shot head on.

    Assuming your using the same Osram diode used in previous versions of LI (pre 8.9) or one of very similar beam dimensions then I would strongly advise against a vertical install unless 100% of your encounters are straight shots with minimal off axis angles.
     
  10. Gatriel

    Gatriel Deo Vindice Intermediate User

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    Yes .. I know this is an old thread. However, did we ever come to a conscious about the vertical installation of the HP-905 heads?

    Some on here say yes -- others no. Did we ever get one of these things tested vertically?
     
  11. tmcmenam

    tmcmenam PSL +15 Advanced User

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    It will work but is not as effective in off axis situations. The beam spread is much wider in the horizontal position.


    Sent from my SCH-I545 using Tapatalk 2
     
  12. Blinder Dude

    Blinder Dude User-Requested Closed Account Closed Account

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    Put your money on the 905 as we move forward.
    Vertical or horizontal Blinders software has your defense covered.
    Denmark will never stop making a better mouse trap.
    It's been a 14 year ride jump on! There's more coming!
     
  13. mrkookm

    mrkookm PSL +15 Advanced User

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    Not sure what software BD is referring to here since to my knowledge the 'software' will not cause the diode IR output change its orientation on the fly. Correct me if I'm wrong?

    To have good off-axis protection the IR output from the firing diodes has to be wider...not taller. Don't get me wrong, vertical will work in most situations on-axis, but it's not ideal. Off-axis is more of a an issue as performance decreases significantly due to the angle of attack (worse as you approach shooter) and the resulting limitation of the taller diode output.

    Also note if the sensors are installed relatively far from headlamps ( more inward to center of vehicle) vertical installs adds to the above issues.

    Install your blinders as there were designed to work. If you can't then you are now aware of the limitations.


    I hope whatever product is sourced or designed in house the 905 owners will not be left out in the cold as the m27/47 owners were.



    from my iP5 via Tapa 2
     
    Last edited: Jun 28, 2013
  14. tmcmenam

    tmcmenam PSL +15 Advanced User

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    When? I sold my 905s long ago when I realized there were no updates coming.
     
  15. deanoobaby

    deanoobaby PSL +15 Advanced User

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    if it did it would of said in the manual ...either place horizintal or vertical ...but who im i kidding it also shows us how to set up for off axis poliscan

    no i would not mount vertical but there is away around it

    tear down the 905 and rotate the diode
     
  16. Gatriel

    Gatriel Deo Vindice Intermediate User

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    I'm just going to buy el cheapo flat black kidney grills and take a dremel to them and build myself a little bracket out of abs.
     
  17. Gatriel

    Gatriel Deo Vindice Intermediate User

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    Could you please comment more on any upcoming software updates as well as the ability to mount leads in either direction.
     
  18. Blinder Dude

    Blinder Dude User-Requested Closed Account Closed Account

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    When what you have works, why update? Yes Blinder is working to make our software better.
    When the next update is 100% ready it will be available. Working on a few different things.
    Others may update every other week only to fix the bug that was created with their last update.
    The mounting can go either way.
    Testing horizontal is better side to side. Vertical better top to bottom.
    Either way with the Blinder HP 905 your not getting a ticket.
     
  19. reggieb

    reggieb I do what I want Advanced User Premium Member

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    I have to point out that in the LI vs 905 vs DALA vs. Truspeed S test done by ECCTG, the LI beat the 905 on, for example, the Truspeed S. Yet LI just released an update to improve its performance even more against Truspeed S. If you had just left it at "When what you have works, why update?" I would let that slide. But the "Others" you speak of are actually performing pretty darn well, and making timely updates.

    In a cat and mouse game, the mouse has to move fast.
     
  20. tmcmenam

    tmcmenam PSL +15 Advanced User

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    LOL

    Sent from my SCH-I545 using Tapatalk 2