Mounting (1 Viewer)

Matthewstorm

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Is there anyplace that will show me the best way to install the Netradar DSP, i.e. proper antennae placement?
 

Deacon

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It’s not sensitive to placement like sensor heads, and it’s pretty generalized, not specific to the DSP. Put it wherever it fits. For best range higher is better, but even low above a lip spoiler on the front is fine, just ideally not behind any metallic painted plastic, definitely not behind any metal of any sort, and not behind any kind of plastic mesh or honeycomb type surface. For best results it should have a clear view of the road. Same applies to a rear facing antenna if you’re doing that. Rear options depend a lot on the specific vehicle.
 

Flonase

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Yep just to add to what Deacon said, you want to locate it behind the flattest and most uniform thickness body panel possible (if you're installing behind a panel). I wouldn't put it behind, say, a seam between two panels, or behind any reinforcement ridges etc. that may be on the back side of the panel. Smooth plastic all the way.
 

Deacon

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Good point. If you can help it, try not to mount it behind anything at all. Let it have a clear view of the road. Putting it behind something (like a bumper cover or whatever) can be OK, but as you can see it introduces numerous variables and potential pitfalls, unnecessarily so for most people.
 

cognetic

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Just recently, I tried positioning my front horn behind my lower front bumper on a 2015 BMW 328i F30 after having it mounted on a rear view Blend Mount for many weeks. Following all the popular warnings to avoid metal, honeycombs, etc....

Disappointed in the significant performance degradation (traveling a well known commute path), I put it back on the rear view Blend mirror mount.

I might actually end up mounting it higher with the MAX360c suction cup mount like my rear mounted horn to further improve stealth. It’s easy to forget about the rear horn as it is so unnoticeable. I modified the NRDSPs by adding the suction mount foot from the MAX360C mount with superglue after removing the magnet to get the best fit for the windshield slant at highest point.


-cognetic
 

Flonase

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It’s worth investigating more, because plastic should be transparent to radar, and if the plastic is uniform thickness and flat, it shouldn’t cause any performance hit from basically straight-on signals.

Are your reference radar sources along your commute significantly off-axis? I could see losing some sensitivity on significantly off-axis sources. If not, I wonder if there’s another root cause of your performance loss?
 

Chris B

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Just recently, I tried positioning my front horn behind my lower front bumper on a 2015 BMW 328i F30 after having it mounted on a rear view Blend Mount for many weeks. Following all the popular warnings to avoid metal, honeycombs, etc....

Disappointed in the significant performance degradation (traveling a well known commute path), I put it back on the rear view Blend mirror mount.

I might actually end up mounting it higher with the MAX360c suction cup mount like my rear mounted horn to further improve stealth. It’s easy to forget about the rear horn as it is so unnoticeable. I modified the NRDSPs by adding the suction mount foot from the MAX360C mount with superglue after removing the magnet to get the best fit for the windshield slant at highest point.


-cognetic
How about mounting it right behind the front grill in the area of the radiator housing? I know the plastic of the grill is there but maybe it would be better performance?
 

Deacon

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The vagaries of installs behind any material is exactly why I said for best results let it have a clear view of the road ahead. Some report it works well behind bumper covers and the like. Some can never seem to get it to perform optimally. It’s consistently hobbled behind metal, honeycomb, mesh, and metallic paint. But it’s not consistently optimal even if none of those are known factors. It can be hard to know the exact materials, construction techniques (is the plastic formed around a metal mesh for strength and rigidity?), and their effects on radar reception both on- and off-axis.

Because there are so many known and unknown variables and factors involved, it’s easier and quicker and consistently successful to just let it have a clear view of the road with no obstructions. If you have the time and equipment and wherewithal to test it, and it’s important to you for whatever reason to hide it, you can test it unhidden first and then test again after hiding it, so you can determine to what extent there’s a detrimental impact and then whether that reduction is acceptable to you. Otherwise, don’t try to hide it, and you should be good to go :)
 

Flonase

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How about mounting it right behind the front grill in the area of the radiator housing? I know the plastic of the grill is there but maybe it would be better performance?
Behind grilles or really anything other than a flat plate, refraction introduces noise into the signal. It’s been demonstrated on this forum even to significantly reduce performance. Think of looking through the side of a glass bottle instead of a flat glass window. The plastic acts like glass to radar.

The vagaries of installs behind any material is exactly why I said for best results let it have a clear view of the road ahead.
And you can have a clear view of it - Vortex has really poor performance from his rear RC-M antenna in his Miata. Turned out it had come unmounted and was pointed at the ground...
 

Flonase

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With all of that said, I mounted my rear NR-DSP behind my rear bumper cover... :hmm:
 

sdrawkcaB

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Behind grilles or really anything other than a flat plate, refraction introduces noise into the signal. It’s been demonstrated on this forum even to significantly reduce performance. Think of looking through the side of a glass bottle instead of a flat glass window. The plastic acts like glass to radar.
Fantastic analogy!
 

Chris B

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Fantastic analogy!
Yea I definitely can see that I figured if the little plastic vertical slits were thin enough, then it would work. So where are people mounting in a newer BMW model for remote radar? Thanks guys.
 

sdrawkcaB

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Yea I definitely can see that I figured if the little plastic vertical slits were thin enough, then it would work. So where are people mounting in a newer BMW model for remote radar? Thanks guys.
Some people put the front remote down in-front of the lower grill that is in front of the intercoolers for the F10/11, F30/32 and G series. Others have managed to put it inside the front bumper on the upper portion up above and between the two kidney grills and the BMW emblem. Apparently there is just enough space there to cut out a block of bumper foam and position the front antenna in there.

I’m toying with the idea of mounting mine onto of the hood, towards the back and centered - near where the windshield meets the hood. It would require me to build a custom wedge shaped leveling platform the same size of the footprint of the detector. I’m just not sure if having it on the back of the hood would better or worse than putting it behind my metallic painted front bumper.
 

Chris B

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Some people put the front remote down in-front of the lower grill that is in front of the intercoolers for the F10/11, F30/32 and G series. Others have managed to put it inside the front bumper on the upper portion up above and between the two kidney grills and the BMW emblem. Apparently there is just enough space there to cut out a block of bumper foam and position the front antenna in there.

I’m toying with the idea of mounting mine onto of the hood, towards the back and centered - near where the windshield meets the hood. It would require me to build a custom wedge shaped leveling platform the same size of the footprint of the detector. I’m just not sure if having it on the back of the hood would better or worse than putting it behind my metallic painted front bumper.
Thanks, I've got the F30 and this is helpful if I decide this route.
 

Frankrizzo

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My F10 is a luxury line spec so I have horizontal slats by the fog lights and put the horn there. It’s very low to the ground but it’s totally unhindered and I still get great range from it. The only comments I’ve ever had from people that mention it is they think it’s a deer horn and I’m ok with that.
 

Chris B

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My F10 is a luxury line spec so I have horizontal slats by the fog lights and put the horn there. It’s very low to the ground but it’s totally unhindered and I still get great range from it. The only comments I’ve ever had from people that mention it is they think it’s a deer horn and I’m ok with that.
That's awesome, if you have some time a pic would be great since I have luxury line as well.
 

Frankrizzo

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That's awesome, if you have some time a pic would be great since I have luxury line as well.
I’m about to take my bumper off and have it refinished since it’s beat to hell and I might move it behind in the center but I’m not sure yet. The plastic slats are flexible to some degree the plastic is pretty soft. I may end up going more towards the corner closer to the light and Dremel out a whole to fit the front of the lens only to see through. If I f it up I can grab the inserts on eBay and replace them.
CB6825F6-C21A-4AB0-A7B2-B8B8B54802EE.jpeg
 

EightyFiveHundred

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Others have managed to put it inside the front bumper on the upper portion up above and between the two kidney grills and the BMW emblem. Apparently there is just enough space there to cut out a block of bumper foam and position the front antenna in there.
That’s literally where I have my DSP mounted — but it’s behind metallic paint. With that said, I haven’t seen too much of a drop in performance compared to my R1.

I have not seen the need to reocate my DSP ahead of my lower mesh.

Current location:
110275
 

Chris B

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I’m about to take my bumper off and have it refinished since it’s beat to hell and I might move it behind in the center but I’m not sure yet. The plastic slats are flexible to some degree the plastic is pretty soft. I may end up going more towards the corner closer to the light and Dremel out a whole to fit the front of the lens only to see through. If I f it up I can grab the inserts on eBay and replace them. View attachment 110273
Good to hear you haven't had drop in performance, I figured those would be too far apart. I like this install tho
-- Double Post Merged: --
That’s literally where I have my DSP mounted — but it’s behind metallic paint. With that said, I haven’t seen too much of a drop in performance compared to my R1.

I have not seen the need to reocate my DSP ahead of my lower mesh.

Current location:
View attachment 110275
You've got the radar detector behind that solid part of the bumper and it works well?! I like.
 

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