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How to pick a radar detector to buy

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Old 01-16-2013, 01:17 PM
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Chebosto
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situational awareness is useless unless you know where and which direction the threat is coming from, else it will just make you pucker. +1 on Valentine one. albeit not the best but at least it as dual antennas to tell you which direction the signal is originating from.

as far as those laser "interceptors" are concerned, unless you're constantly on, spewing the exact wavelength that particular laser gun is using, in 180degree spread, with decent power, no way in hell can you receive, phase shift and transmit a response faster than the return signal bounce from the original laser shot.
Old 01-16-2013, 01:58 PM
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Originally Posted by Chebosto
situational awareness is useless unless you know where and which direction the threat is coming from, else it will just make you pucker. +1 on Valentine one. albeit not the best but at least it as dual antennas to tell you which direction the signal is originating from.
I have a Valentine 1 and Bel STi-R. In the past I've had an Escort 8500 X50, Bel STi Driver, and an Escort 9500i. The V1 is great, but the arrows aren't everything that people make them out to be.

Originally Posted by Chebosto
as far as those laser "interceptors" are concerned, unless you're constantly on, spewing the exact wavelength that particular laser gun is using, in 180degree spread, with decent power, no way in hell can you receive, phase shift and transmit a response faster than the return signal bounce from the original laser shot.
I own two laser interceptor laser jammers and I've personally tested them against a few different lidar guns (prolaser III and laser atlanta). I had my wife drive my car while I shot it with lidar. We did multiple passes and I can tell you that it jammed each gun instantly and with 100% effectiveness.
Old 01-17-2013, 09:12 AM
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Suwaidi
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They've been shown in multiple tests by guysoflidar to outrank many other jammers and jam pretty much every gun on the market. There are some tests that show the high-powered ones jamming the new LTI TruCam, not even used by most police forces yet the best available apparently. The guns don't constantly transmit a signal, they receive the signal and transmit a light noise signal back that 'jams' the gun. The cheaper versions of jammers constantly emit a stream which most laser guns have been shown to be able to bypass. If it were constantly on, I would assume it would be the same noise and frequency, whereas the Laser Interceptor would transmit according to what it receives.
Old 01-17-2013, 02:25 PM
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Originally Posted by Suwaidi
They've been shown in multiple tests by guysoflidar to outrank many other jammers and jam pretty much every gun on the market. There are some tests that show the high-powered ones jamming the new LTI TruCam, not even used by most police forces yet the best available apparently. The guns don't constantly transmit a signal, they receive the signal and transmit a light noise signal back that 'jams' the gun. The cheaper versions of jammers constantly emit a stream which most laser guns have been shown to be able to bypass. If it were constantly on, I would assume it would be the same noise and frequency, whereas the Laser Interceptor would transmit according to what it receives.
just went to the guysoflidar website.

yea if you can't label your axis on a graph, or use something more controlled than a hand clicked stopwatch to give higher resolution than 0.5 seconds i wouldn't give two ***** about their data products or 'results' statistics. thats just the engineer in me venting.

as far as operation of laser jammers go, i looked up that escort unit the ZR4. they' claim "phase shifting" the initial shot to introduce a delay to give a return via a multi-bandwidth transmitter that either will read lower, or completely obscure the reading.. aka two different red blinky lights that blink at different rates... meh if it works for you great. i still dont buy into the validity of it.. esp when the Chevy Envoy's red tail lights ahead of you can initiate a jam response because its on the same wavelength.
Old 01-17-2013, 09:13 PM
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The point of the tests was simply a group of enthusiasts getting together to test out different laser guns. While they did try to control many variables (fixed position of radar guns, only one detector at a time, same vehicle traveling speed, clear course, power cycled, etc.), whether their results are truly accurate or not is up for debate, a topic of which I have no knowledge in so I can't chime in on that, but I do agree that statistical evidence with reputable data would be more convincing.

As for the jammers, from the LI website:

"Laser Interceptor is a LIDAR triggered Laser Jammer that transmits a Jamming Beam only upon detection of a LIDAR signal and does so for the duration of that signal and then immediately disengages when that signal is no longer detected. Laser Interceptor will then immediately reengage again upon the detection of another LIDAR Signal(s)"

Comparing the initiation of a Laser Jammer caused by a car is comparable to saying a supermarket's doors will set off a radar detector, the detector is still working it's simply a false alert, same as the laser jammer jamming a false alert. Whether the jammers truly work on all platforms and is foolproof is uncertain, personally even with the "high-powered jammers" I wouldn't have 100% trust. But then again, some protection is better than no protection.
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