Important: Head Positions on your ALP Install.

[BestRadarDetectors]

When installing a dual system you do not want to place the heads too far apart from each other (For example under each headlight) that is too far apart for sensors in a dual install. If you do a Triple install and have one under each headlight but also place one head dead center that configuration will work fine. Just realize its important that heads be installed in order when doing a Triple front install. (F1, F2 & F3) and the F2 head needs to be in the center position. Its best to also post photo's of your install and we will mark out suggestions for optimal placement. You can post your photo's in the ADVICE ON PLACEMENT (http://radarandlaserforum.com/forumdisplay.php/19-Advice-on-Placement) thread. Its also a good idea to preview others installs before you install your own.

[lugnuts]

are the rules for buble location still the same for ALPs as they were for LIs?

[BestRadarDetectors]

are the rules for buble location still the same for ALPs as they were for LIs?

Heads are small.. Moving the Bubbles only moves the receive or transmit less than 1" either way. That small difference really will not make any difference.

[lugnuts]

thanks thats what I thought.

they are small and thats why I asked it seamed that with LIs there was so much talk about bubles in/out but you don't hear it anymore.

[shanetrainST]

What is the optimal spacing for ALP? In inches or cm.

[Vortex]

What is the optimal spacing for ALP? In inches or cm.

and what have you found to be the threshold for what's "too far away" and what's "sufficiently close" enough to work with just two heads?

I know the rule of thumb used to be 18", but the ALP's are more sensitive and it looks like we can get away with farther spacing.

[BestRadarDetectors]

What is the optimal spacing for ALP? In inches or cm.

Every car is different and its best to post a photo and have us make some recommendations. As a rule I would not space them over 24" apart from each other.

[ECMExpert]

Every car is different and its best to post a photo and have us make some recommendations. As a rule I would not space them over 24" apart from each other.

Its funny, BUT that's about the recommendation for the ALF CS56 IIs as well........................(AKA the Rental Car Temps)................

[Magn3t1cSt0rm]

I'm a bit confused in terms of sensor coverage as the Youtube video here https://www.youtube.com/watch?v=lDS-Nf9HtEI appears to show one sensor unit, mounted vertically in the grill of a BMW X5 and one on the rear providing full coverage against various lasers. What do folks think of this?

[hussein]

I'm a bit confused in terms of sensor coverage as the Youtube video here https://www.youtube.com/watch?v=lDS-Nf9HtEI appears to show one sensor unit, mounted vertically in the grill of a BMW X5 and one on the rear providing full coverage against various lasers. What do folks think of this?

My understanding is that a single head is enough for some guns... Probably when it comes to the variable pulse rate guns, you need two heads.

I cannot remember the reason behind recommendations against vertical mounting.

[awj223]

My understanding is that a single head is enough for some guns... Probably when it comes to the variable pulse rate guns, you need two heads.

I cannot remember the reason behind recommendations against vertical mounting.

The beam pattern of the head is more horizontal than vertical, when mounted properly. You don't want to mount vertically because the head will be throwing a lot of IR up toward the sky and down into the road (which isn't the main problem) and not so much IR toward the sides (which IS the main problem). Jamming requires that the IR from the jammer reach the gun with sufficient intensity to confuse it. If you are putting the main beam pattern in an up/down fashion, you won't properly jam off-axis shots. Also, the receiver might be designed to catch shots to the sides (when mounted properly) more so than up and down.

See the beam pattern here:


https://www.youtube.com/watch?v=LEuoU2hplaw

[RedRocket]

My understanding is that a single head is enough for some guns... Probably when it comes to the variable pulse rate guns, you need two heads.

I cannot remember the reason behind recommendations against vertical mounting.


The beam pattern of the head is more horizontal than vertical, when mounted properly. You don't want to mount vertically because the head will be throwing a lot of IR up toward the sky and down into the road (which isn't the main problem) and not so much IR toward the sides (which IS the main problem). Jamming requires that the IR from the jammer reach the gun with sufficient intensity to confuse it. If you are putting the main beam pattern in an up/down fashion, you won't properly jam off-axis shots. Also, the receiver might be designed to catch shots to the sides (when mounted properly) moreso than up and down.

See the beam pattern here:


https://www.youtube.com/watch?v=LEuoU2hplaw
https://www.youtube.com/watch?v=kgisHAQehMc
Member awj223 gets it correct. Here is another video I made in late 2013 just after the AL-P was introduced & I was one of the earliest adopters... (Yeah, I think ECMExpert was the only one who bought before me.) :playful:

p.s. - BTW, that small vertical dot above the IR pattern is the output of a TSS used to trigger the AL-P Sensor to fire.

[Redmoto]

Ideally you mount sensors horizontally. But we've tested many BMW (car) with vertical grill (///) mounting and they work just as well as horizontal mounting.
This is due to the circularly polarized laser jamming diode. However, the bubble on the lens over the laser detection is designed to cover wider angle horizontally.
This is what I was told.

[BestRadarDetectors]

Ideally you mount sensors horizontally. But we've tested many BMW (car) with vertical grill (///) mounting and they work just as well as horizontal mounting.
This is due to the circularly polarized laser jamming diode. However, the bubble on the lens over the laser detection is designed to cover wider angle horizontally.
This is what I was told.
The laser diode is not circular and because they are shooting in the videos basically on axis it works but shoot 15+ degrees off axis you will get lots of PT'S with verticle mounted heads.

[modsl55amg]

Every car is different and its best to post a photo and have us make some recommendations. As a rule I would not space them over 24" apart from each other.

Tom/BRD, Please take a look at the attached picture of my SL55 AMG, and let me know your feelings about the two ALP sensors mounted in the front upper grill.

The distance from the center of one receive bubble to the center of the other receive bubble is 26 inches.

The distance from the closest edge of one sensor to the closest edge of the other sensor is 23 inches.

The distance from the center of each receive bubble to the farthest edge of each headlight housing is 20 inches.

The distance from the center of each receive bubble down to each fog light in the lower grill is 18 inches.

The front license plate will be lowered under the front bumper at all times when driving.

I realize that performance during a test session will be the true judge of the sensors placement, but what are your thoughts by just looking at them, taking into consideration the measurements provided?

Thank you in advance for your advice.

[BestRadarDetectors]

Your install is fine for the area you live in. If you lived in GA for example I would tell you to either bring them a bit closer or add a 3rd head.

[RedRocket]

Your install is fine for the area you live in. If you lived in GA for example I would tell you to either bring them a bit closer or add a 3rd head.DragonEye Lidars have been seen in Delaware !

[SurrealOne]

I think after reading the a few post that I might need to change the driver side head and flip it over so the bubble is on the outside.4560

[RedRocket]

I think after reading the a few post that I might need to change the driver side head and flip it over so the bubble is on the outside.I think not, the 1" difference it makes would have negligible effect on performance.

[modsl55amg]

Tom/BRD, Please take a look at the attached picture of my SL55 AMG, and let me know your feelings about the two ALP sensors mounted in the front upper grill.

The distance from the center of one receive bubble to the center of the other receive bubble is 26 inches.

The distance from the closest edge of one sensor to the closest edge of the other sensor is 23 inches.

The distance from the center of each receive bubble to the farthest edge of each headlight housing is 20 inches.

The distance from the center of each receive bubble down to each fog light in the lower grill is 18 inches.

The front license plate will be lowered under the front bumper at all times when driving.

I realize that performance during a test session will be the true judge of the sensors placement, but what are your thoughts by just looking at them, taking into consideration the measurements provided?

Thank you in advance for your advice.

Tom (BRD), and other members: "IF" I were to add a third ALP sensor, and kept the original two ALP sensors in their present positions, where would you suggest the third ALP sensor be placed?

[dinkydi]

underneath one of the grill, but the badge may be a problem

[vadrs c7]

Are my sensors good? (will add to main posting) I usually have a front plate on in Ohio, so they can shoot the lights or the plate. Thanks!
4642

[busta]

Are my sensors good? (will add to main posting) I usually have a front plate on in Ohio, so they can shoot the lights or the plate. Thanks!
4642

First off Nice Ride , the position looks good but are they towed outwards rather than square to the road ?

[RedRocket]

Your Sensors appear to be toed outwards to me, also. They MUST be pointed straight forward (not following the Front body curvature) & "bubble-level" if your garage floor is perfectly level. Additionally, they look to be more than 24" apart,...are they ?

[vadrs c7]

Everyone - Thanks for the feedback! I adjust them to be facing straight forward and they are exactly 24" apart inner end to inner end. Bubble to Bubble maybe 24.5" - 25".

[BestRadarDetectors]

REMINDER!!!!!!!!!!

With a DUAL Front Setup you must use the F1 & F2 ports for the front sensors
For a 3 Head System you must use F1, F2 & F3 and the F2 port needs to be the center head.

We tested 12 cars today in NJ and 3 cars were IPT on all VPR guns. I even marked on our data sheet next to their name that they must have the wrong ports being utilized. I even asked if they were sure they used the correct ports and they all said yes. After we keep getting IPT's I asked these guys to come over and show me their wiring and sure enough each was using F1 & F3 on dual systems.

For VPR protection you NEED 2 heads and both heads need to be in the F1 & F2 port. If using 3 heads the center head needs to be in the F2 port. If you are not sure of your configuration please double check the install and make sure your wiring is correct.

[jir591]

I want to add a third sensor head to my 2015 tahoe. I already have sensor heads installed at each end in the middle of the grill. The distance from the bubble to the center of the Chevrolet bow-tie is 22". Should I place the third sensor head above or below the chevy bow-tie?

4761

[BestRadarDetectors]

Right below the Bow-Tie and you will be in good shape. Just make sure when you add the 3rd head that you wire the center head to the F2 port.

[jir591]

I painted the bowtie a flat black to reduce the target. Can I now put the sensor at the bottom center of the grill to protect the fog lights as targets?
4768

[Holla]

I painted the bowtie a flat black to reduce the target. Can I now put the sensor at the bottom center of the grill to protect the fog lights as targets?
4768

No place it right below the bow tie as BRD stated you will be well protected--you dont want your 3 sensors very far apart for optimal performance

[BestRadarDetectors]

X2... You will be in good shape.

[tawwwd]

painting that Chevy emblem does nothing when your entire grill is still chrome lol

[dano]

Aren't the bubbles suppose to be on the outside? On Busta's corvette the bubbles are inside. Did I miss something?

[PAPACUCU]

Are those ALF CS56's actually functional/reliable CM's?
If so What will/won't they jam?

Just curious as I am married to my ALPS, but may VW EOS allows me to date a rental car every so often when away on business

[PAPACUCU]

Its funny, BUT that's about the recommendation for the ALF CS56 IIs as well........................(AKA the Rental Car Temps)................


Are those ALF CS56's actually functional/reliable CM's?
If so What will/won't they jam?

Just curious as I am married to my ALPS, but may VW EOS allows me to date a rental car every so often when away on business

PS
Sorry about the duplicate posting.
I have not figured out how to delete a post

[Clint Eastwood]

Aren't the bubbles suppose to be on the outside? On Busta's corvette the bubbles are inside. Did I miss something?

http://radarandlaserforum.com/showthread.php/7548-Important-Head-Positions-on-your-ALP-Install?p=53834&viewfull=1#post53834

[radargeek]

Resurrecting a somewhat old thread, but I wanted to ask... when heads are supposed to be a maximum of 22-24" apart, is that inner edge to inner edge, center to center, or bubble to bubble?

Also, to give my 0.02 regarding bubbles in or out, although with the small ALP heads it doesn't matter that much, I prefer bubbles out due to the curvature of the grill, having them out allows the receivers to have a better "view" with the heads flush or slightly recessed. Thus you can have a bit more stealth without any loss of performance.

[BestRadarDetectors]

Resurrecting a somewhat old thread, but I wanted to ask... when heads are supposed to be a maximum of 22-24" apart, is that inner edge to inner edge, center to center, or bubble to bubble?

Also, to give my 0.02 regarding bubbles in or out, although with the small ALP heads it doesn't matter that much, I prefer bubbles out due to the curvature of the grill, having them out allows the receivers to have a better "view" with the heads flush or slightly recessed. Thus you can have a bit more stealth without any loss of performance.

There is no hard set rule.. Its usually best to post a photo and have us give recommendations based on the vehicle.

[driggett]

http://images.tapatalk-cdn.com/15/11/07/1e5c7dbd07eb401cd62bbd6dbc5c56b8.jpg
Just ordered a two head system. Where on my vehicle should I place the sensors and do I need a third head? I live and commute in Silicon Valley with the occasional drive down to LA.

Thanks,
Chris
2014 Bmw 335i m sport mineral grey.


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[EightyFiveHundred]

4960
http://images.tapatalk-cdn.com/15/11/07/1e5c7dbd07eb401cd62bbd6dbc5c56b8.jpg
Just ordered a two head system. Where on my vehicle should I place the sensors and do I need a third head? I live and commute in Silicon Valley with the occasional drive down to LA.

Thanks,
Chris
2014 Bmw 335i m sport mineral grey.


Sent from my iPhone using Tapatalk

^CCA let you run with an open face?

You can see my heads in the lower grille...

[driggett]

My first HPDE at Thunderhill 5 mile. I bought the cheap helmet just to try it. I was thinking of placing mine where yours are but making sure. I read the dmv code and it said 3 and under heads is a citation with four or more a misdemeanor


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[EightyFiveHundred]

My first HPDE at Thunderhill 5 mile. I bought the cheap helmet just to try it. I was thinking of placing mine where yours are but making sure. I read the dmv code and it said 3 and under heads is a citation with four or more a misdemeanor


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T-Hill is a great/fun track. HPDEs are a slippery slope -- ask me how I know :whoo:. I have a bunch of friends that track there regularly.

I've been tagged enough times going North/South in CA that my ALP has paid itself off, as I regularly commute between The City and SoCal. Make sure the heads are level and square as possible.

http://radarandlaserforum.com/showthread.php/3561-BMW-e60-m5-head-placement

[driggett]

I received my sensors today and I went and bought a 3rd one. Should I place this in the front or is it okay to have a single one in the rear?


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[BestRadarDetectors]

I received my sensors today and I went and bought a 3rd one. Should I place this in the front or is it okay to have a single one in the rear?


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Never expect one head to protect a whole end of a car. You need a minimum of 2 heads on each end that you want to protect.

[driggett]

That is what I thought but having 4 jammers in ca is a misdemeanor. Is each head consider a hammer or is the whole system count as one?


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[driggett]

I meant jammer.


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[BestRadarDetectors]

That is what I thought but having 4 jammers in ca is a misdemeanor. Is each head consider a hammer or is the whole system count as one?

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I do not know California law in detail but if you use the system wisely and use the auto kill functions no one would even be suspicious if you immediately slowed and gave them a reading in even 4-5 seconds.

[awj223]

That is what I thought but having 4 jammers in ca is a misdemeanor. Is each head consider a hammer or is the whole system count as one?


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The law was obviously written to distinguish between the user of such a device and someone distributing those types of devices, and the court would likely interpret it as such. But why are we even having this discussion about the ALPs? The ALPs are just parking sensors :)

[SurrealOne]

I live in Calif and if I get asked any questions by a LEO it is a parking sensor. Now go stand in front of my car so I can test it hehe :)

[EightyFiveHundred]

I live in Calif and if I get asked any questions by a LEO it is a parking sensor. Now go stand in front of my car so I can test it hehe :)

And...if you're running BT connect, there's no controller to the parking sensors anywhere on the dash, etc..

"Sorry Officer, those things were on there when I bought the car. I don't even know if they can turn on...I can't even find a switch."

[SurrealOne]

So parking sensors do not work with BT

[EightyFiveHundred]

So parking sensors do not work with BT

They do...if you're connected with your app.

If you're not running your app, you're not connected to the ALP.

[Bassman0221]

I know they are not completely even (brackets came loose) but how is this location? Should I move them higher? FWIW they are exactly 22" apart (Outside to outside). Sorry for the cell phone pic.... 5036

[RedRocket]

You're limited in moving them higher unless willing to cut the upper grill. Why not have it Tested first before doing any cutting elsewhere. Make sure you have both Transponders pointed straight ahead when you fix the loose brackets. Following the curvature of the body is a no-no.

[Bassman0221]

You're limited in moving them higher unless willing to cut the upper grill. Why not have it Tested first before doing any cutting elsewhere. Make sure you have both Transponders pointed straight ahead when you fix the loose brackets. Following the curvature of the body is a no-no.

I am not opposed to cutting (I would buy another OEM grill first) and I would love to have it tested. Being in VA is there anywhere close that could assist me?

[RedRocket]

I am not opposed to cutting (I would buy another OEM grill first) and I would love to have it tested. Being in VA is there anywhere close that could assist me?I'm afraid not close by that I'm aware of.

[subterFUSE]

Suggestions for 3 sensor front placement on my car?

Also, my front grill is attached to the hood. Does this cause any problems?

5465

5466

5467

[nuclearlaser]

Can all 5 sensors be utilized on the front of a 2017 Camaro?

[RedRocket]

Can all 5 sensors be utilized on the front of a 2017 Camaro?NO !
At present, a maximum of 3 in the FRONT & 2 in the REAR is permitted w/ the current system.

(This could change in the future.)

[nuclearlaser]

RedRocket, thanks for the fast reply. I am a long time user of LI HP, and have had all four sensors on the front of a camaro for years and never ever had a punch through at any range or side angle, and upwards shots. That was a total of 8 lasers emitting during an encounter. Some may say overkill, but not really. I bought a new camaro and want a setup that will perform the same whether it is considered overkill by some. I am ready to purchase, and just needing some info before this happens. What would happen if all 5 were installed on the front?

[BestRadarDetectors]

ALP Jammers do not operate the same as old jammers. All you need is 3 sensors and adding more will decrease and not improve performance. We have large trucks running ALP'S with a Triple with JTG testing.

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[nuclearlaser]

ALP Jammers do not operate the same as old jammers. All you need is 3 sensors and adding more will decrease and not improve performance. We have large trucks running ALP'S with a Triple with JTG testing.

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I am only concerned with front protection on this 2017 SS camaro. So a 3 head install is better than 5 head on the front? Next question is what site is the best to order this from? There are several sites, and I do not want to get burned. I will purchase 2 units. Thanks.

[RedRocket]

I am only concerned with front protection on this 2017 SS camaro. So a 3 head install is better than 5 head on the front? Next question is what site is the best to order this from? There are several sites, and I do not want to get burned. I will purchase 2 units. Thanks.For best protection 3 Transponders will give you excellent protection against all the current & known Lidars used by Law Enforcement.
However, I am not discouraging you from buying 2 separate AL-P systems to give full protection at this time for FRONT & REAR, but feel compelled to let you know also that there has been some hints that AntiLaser may offer a modified "Priority" update to the current generation that will allow for MORE than 3 Transponders each side. - ( Speculation recently was that it might be available in 1st Qtr of 2017. )

p.s. - Re: Post #61 above..."BestRadarDetectors" is your source to buy from.... 'click' on the hot link provided in the signature area at the bottom of Tom's post.

[nuclearlaser]

Any updates??

For best protection 3 Transponders will give you excellent protection against all the current & known Lidars used by Law Enforcement.
However, I am not discouraging you from buying 2 separate AL-P systems to give full protection at this time for FRONT & REAR, but feel compelled to let you know also that there has been some hints that AntiLaser may offer a modified "Priority" update to the current generation that will allow for MORE than 3 Transponders each side. - ( Speculation recently was that it might be available in 1st Qtr of 2017. )

p.s. - Re: Post #61 above..."BestRadarDetectors" is your source to buy from.... 'click' on the hot link provided in the signature area at the bottom of Tom's post.

[RedRocket]

Any updates??I havn't heard of any announcements from AntiLaser in Croatia or from ALPriorityUSA.

[warrenw]

Is there a licence plate mount setup for the ALP sensors? (using the license plate top bolt holes?) I was looking on line and cannot find anything that would universally support two sensors on either side of the plate at the top.

[RedRocket]

Is there a licence plate mount setup for the ALP sensors? (using the license plate top bolt holes?) I was looking on line and cannot find anything that would universally support two sensors on either side of the plate at the top.I'm not aware of any commercially available at this time in the USA. I saw some from EU some time ago, but their LPs are much different sizes(dimensions) than here. The only other ones I've seen are 3D printed by professional installers for their clients.