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Old 07-29-2015, 09:37 PM   #1
M12LRV
 
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Radar Detectors Useless With Blind Zone Alert?

Will radar detectors be useless if a car, such as the Gen 6 Camaro has blind zone alert, cross trafic alert, and/ or lane change alert, as these features use radar and could possibly give constant false positive readings?
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Old 07-29-2015, 11:46 PM   #2
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Somehow I would think that those options would use a short-range 'radar' if anything, nothing to be worried about.
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Old 07-29-2015, 11:50 PM   #3
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If the police are even using Radar. Many departments use Laser..........
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Old 07-30-2015, 01:40 AM   #4
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Since anything emitting radio waves is regulated and licensed, police radar bands are very specific frequencies, radar detectors generally look for only those frequencies.
I would imagine they would ignore the emitters in the vehicles for the alert sensors since they would not be licensed to operate in the same frequency range (imagine the havok it would cause to radar guns if the frequencies were the same)
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Old 07-30-2015, 08:21 AM   #5
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Radar detectors are mostly useless anymore anyway. Most cops use pulse radar now. By the time your detector goes off he's got you.
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Old 07-30-2015, 08:37 AM   #6
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THor is right and i also notice when i get near newer model year cars it seems to set the detector off
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Old 07-30-2015, 09:25 AM   #7
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Quote:
Originally Posted by SupportGeek View Post
Since anything emitting radio waves is regulated and licensed, police radar bands are very specific frequencies, radar detectors generally look for only those frequencies.
I would imagine they would ignore the emitters in the vehicles for the alert sensors since they would not be licensed to operate in the same frequency range (imagine the havok it would cause to radar guns if the frequencies were the same)
Definitely not true. K band frequencies are used by the vast majority of Blind Spot and Rear Cross traffic systems. It makes very old and a lot of the cheaper radar detectors near useless because of the number of false alerts. I use a Whistler CR90 which was supposed to be one of the better ones for rejecting these false signals. I can tell you consistently when I go near a new Audi, Chevy, or Kia using blind spot monitoring, I get a constant ping off them, even 20-30 car lengths behind them. Course I deal with it b/c the cops don't really use K-band guns in my area. I don't want to enable filters and reduce my detection of the real threat, Ka-band and keep it on Highway mode always.

I agree with other saying radar detectors are becoming more useless by the day due to more cops using laser. Instant On has been a threat for awhile, but if you are smart about using your detector and know your route you can have enough warning. I like my Whistler since it only calls out police Ka-band frequencies verbally and I routinely pick up Instant-On pulses up to a mile awhile, giving me time to slow.

Back to the OPs question. I know people had reported problems in the 3 series with their driver aids, but not every radar detector had issues. Probably going to be trial and error.
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Old 07-30-2015, 10:25 AM   #8
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I've had an Escort Passport 8500 since 2008. It was Escort's top of the line detector at the time and it is still very good. With more and more cars on the freeway using radar guided cruise, blind spot, and pre-collision sensing, I still have not noticed a single false alarm.

It is true that police use a different frequency than the sensors on your car. Good radar detectors are tuned to those frequencies. Bad ones, or low end ones, may not be as precisely tuned and thus will alert whenever they see any kind of radar.

But Escort and Valentine are the detector standards. No false alarms on car sensors.
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Old 07-30-2015, 12:47 PM   #9
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I've had an Escort Passport 8500 since 2008. It was Escort's top of the line detector at the time and it is still very good. With more and more cars on the freeway using radar guided cruise, blind spot, and pre-collision sensing, I still have not noticed a single false alarm.

It is true that police use a different frequency than the sensors on your car. Good radar detectors are tuned to those frequencies. Bad ones, or low end ones, may not be as precisely tuned and thus will alert whenever they see any kind of radar.

But Escort and Valentine are the detector standards. No false alarms on car sensors.
From what Ive read on various sites, the bolded part is exactly it.
Avoid the cheap, low end ones.
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Old 07-30-2015, 01:19 PM   #10
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The guys on the bmw forums were using passports and v1s and they had issues from their own cars with it. I'm betting you guys have filters in place to reduce false alerts which also compromises detection range. But agree not all radar detectors are equal, even in the same models. I definitely have no filters set on mine that would cut down on alerts from cars. So that could be my reason.

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Old 07-30-2015, 02:17 PM   #11
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The guys on the bmw forums were using passports and v1s and they had issues from their own cars with it. I'm betting you guys have filters in place to reduce false alerts which also compromises detection range. But agree not all radar detectors are equal, even in the same models. I definitely have no filters set on mine that would cut down on alerts from cars. So that could be my reason.

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I don't have filters cutting mine down either. My detector does an excellent job in deciphering what is a police officer's rader/laser, and what anything else from automatic doors at the mall to the airport which I live near to those freeway traffic monitors.

If it begins to alarm I can hit the mark button. If it is not real police it will let me mark it. If it IS real police it will ignore my attempt to mark. Once marked it remembers the location (it has a built in GPS), and frequency. So if a real cop was sitting right under the traffic monitor radar on the freeway, my detector will know the difference.

Sounds like those guys on that forum just need to sit down, read their owners manual, play with their detector, and learn how to use it. Once everything is programmed it is a breeze and you never have to touch it.

It has paid for itself. Before that I had an Escort 7500 I bought in 1998. That too paid for itself. I would never drive naked without a detector, and I firmly believe in Escort. Valentine too.

Last edited by fastball; 07-30-2015 at 02:31 PM.
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Old 07-30-2015, 02:27 PM   #12
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I don't have filters cutting mine down either. My detector does an excellent job in deciphering what is a police officer's rader/laser, and what anything else from automatic doors at the mall to the airport which I live near to those freeway traffic monitors.

If it begins to alarm I can hit the mark button. If it is not real police it will let me mark it. If it IS real police it will ignore my attempt to mark. Once marked it remembers the location (it has a built in GPS), and frequency. So if a real cop was sitting right under the traffic monitor radar on the freeway, my detector will know the difference.

Sounds like those guys on that forum just need to sit down, read their owners manual, play with their detector, and learn how to use it. Once everything is programmed it is a breeze and you never have to touch it.

It has paid for itself. Before that I had an Escort 7500 I bought in 1998. That too paid for itself. I would never drive naked without a detector, and I firmly believe in Escort. Valentine too.
Taking a quick look at the escort forums shows it is a common problem. Maybe you got a ringer that works better or they have lemon units. I did see enabling TSR reduces the false alerts. I have it turned off on mine. Will have to try it next time I get behind an Audi.
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Old 07-30-2015, 02:35 PM   #13
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Taking a quick look at the escort forums shows it is a common problem. Maybe you got a ringer that works better or they have lemon units. I did see enabling TSR reduces the false alerts. I have it turned off on mine. Will have to try it next time I get behind an Audi.
Well, I've been using Escort radars for 17 years. They are rock solid and I stand by them. Not sure what their problems are but I am sure if they read their owners manuals that can cut down on many of their problems.

I've driven right besides cars with blind spot monitoring and looked at their side view mirror for the indicator. It's on and my detector is silent.

I doubt so many of them actually have real problems with their detectors. Don't forget, mine is 7 years old now. Most of them probably have the newer one which is the 9500i. When my detector was made few cars if any had radar sensors all over it.
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Old 07-30-2015, 04:08 PM   #14
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So even Valentine has a page about blind spot monitoring and false alerts. It seems that it has nothing to due with frequencies being programed in the detector, but the TSR technology used to reject the signals. Valentines without this feature can be upgraded, so that probably accounts for the reports I have read of them having issues too.

http://www.valentine1.com/v1info/junk_k_fighter/

It also reminds me the reason I turned TSR off on mine, I never heard it go off with it on. So I turned it off to make sure it was working. So definitely going to try it with it on next time.

Here's a video of a guy with Passport MAX falsing Ka from a Yukon which I've never received a Ka false from any of the driver aids on cars so far.

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