jammer in grill

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jammer in grill

Postby mc5 on Thu May 06, 2010 8:02 pm

bmw4226726604_92d55c3fc2_o.jpg


I have a bmw m3 2004. Can I install the LPP jam sensor in grill vertically like this guy did with the LI jammer on his bmw.

Do I have to use 2 LPP jammers for this or can i get away with one in grill in my bmw? thanks
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Re: jammer in grill

Postby go.mouse on Fri May 07, 2010 12:12 am

Yes, we did a dual-head install on a 335i 2 years ago, and the heads were fitted vertically (angled slightly) in the grill. We didn't notice any difference in performance. It jams very well.

With one head, it will still save you laser tickets assuming they target anywhere around the center of your car.
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Re: jammer in grill

Postby mc5 on Fri May 07, 2010 10:54 am

go.mouse wrote:Yes, we did a dual-head install on a 335i 2 years ago, and the heads were fitted vertically (angled slightly) in the grill. We didn't notice any difference in performance. It jams very well.

With one head, it will still save you laser tickets assuming they target anywhere around the center of your car.


How did you mount them in the grill? Did you use the bracket that came with it or did you use another method?
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Re: jammer in grill

Postby go.mouse on Sat May 08, 2010 10:08 am

I believe no bracket was used. If the head can be fixed by using 3M double-sided tape, I would avoid using the steel bracket as they are quite heavy.
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Re: jammer in grill

Postby TSi+WRX on Sun May 09, 2010 7:52 pm

Like go.mouse said, it should fare at least OK/fair -to- well/good, depending on the specifics of the encounter.

Why are my statements so guarded?

Although direct testing seems to suggest that performance would be unaffected:

viewtopic.php?f=2&t=315&hilit=vertical (this is the thread that go.mouse cited, I believe)

^ it nevertheless serves one well to remember that there are true-technical concerns:

viewtopic.php?f=2&t=256&hilit=vertical
http://www.radardetector.net/forums/las ... cally.html

At first glance, it would seem that the real-world testing result is directly contradictory to either the observed beam "brightness" and/or the theoretical (based on the output specs of the laser diode).

But if you thought about it a little more, that's not necessarily the case.

Why?

Look at the testing - while the course is certainly rigorous, it's not "worst case." Yes, it's rigorous in the sense that engagements are brought all the way to "point blank." Yes, it's rigorous in that there's experienced shooters on the other side, trying to elicit PT. But it doesn't really take into account truly extreme-angle engagements, "ambush" engagements, or the inexplicable and unpredictable "luck factor."

So, what does this mean?

If I were in your shoes, I'd ask myself the honest question of whether or not your local enforcement habits come into the category of "worst case."

If not, then yes, I do think that a vertical setup will fare well enough that you should not have any concerns.

But if you have doubts, then it'll be time to tackle the question in another way: i.e. is concealment and/or aesthetics more important to you than sufficient protection - is the risk-ratio viable, for you, personally.


----


In terms of mounting, 3M Automotive Trim/Mo(u)lding tape is quite strong, and as long as the surfaces are prepared properly, you should not have any problems, particularly if the surfaces are close enough together as to offer some degree of physical reinforcement (i.e. the "slats" are of the right size that they literally "squeeze" the mounted head/tape combo).

Just remember to check leveling routinely.

Even with a true hard-mount, I still advocate routine head leveling/aiming checks - this is something that was demonstrated to be of critical concern just a few years ago. Just as you would check your tire pressures and vital fluids regularly, you should also incorporate this checkup into your routine. :)
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