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Aug 25, 2008 9:03:15 AM
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Carlos from Spain
- Rennteam Moderator
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- Loc: Spain. , Spain
- Posts: 21152, Gallery
- Registered on: Feb 9, 2003
- Reply to: Alcyon
Re: Radar Devices?
The problem with the Stinger is that it only picks up only two narrow bands (34,6GHz Ka band and 24,125Ghz K band) so outisde some european countries its useless.
Before buying a radar detector you must first find out what radar bands are used in Turkey and if you have laser guns as well. Otherwise insetad of a radardetector you may insetad get an expensive paperweight.
Before buying a radar detector you must first find out what radar bands are used in Turkey and if you have laser guns as well. Otherwise insetad of a radardetector you may insetad get an expensive paperweight.
Aug 25, 2008 5:10:58 PM
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GT
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- Loc: london , United Kingdom
- Posts: 618, Gallery
- Registered on: Jan 14, 2006
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Reply to:
Carlos from Spain
Re: Radar Devices?
Quote:
GT said:
MMD you may want to send your V1 back for a service. They are known to lose their sensitivity after some time especially if exposed to a lot of sunshine etc.. Its happened to me already twice.
Btw what is Lidar?
LIDAR is what those laser speed guns are referred to as.
Re: Radar Devices?
Quote:
GT said:
MMD you may want to send your V1 back for a service. They are known to lose their sensitivity after some time especially if exposed to a lot of sunshine etc.. Its happened to me already twice.
Btw what is Lidar?
Oops..., I edited my post badly. I omitted the part about how my V1 "never" saves my a** anymore because cops' tactics and equipment may have changed. The thing DOES go off, and gives much-advanced warning for..., I dunno what you'd call it..., "contant transmission(?)" from cop cars and other PITA non-ambush alerts.
Thanks for the suggestion though.
Re: Radar Devices?
Quote:Military and law enforcement
MMD said:Quote:
GT said:
MMD you may want to send your V1 back for a service. They are known to lose their sensitivity after some time especially if exposed to a lot of sunshine etc.. Its happened to me already twice.
Btw what is Lidar?
Oops..., I edited my post badly. I omitted the part about how my V1 "never" saves my a** anymore because cops' tactics and equipment may have changed. The thing DOES go off, and gives much-advanced warning for..., I dunno what you'd call it..., "contant transmission(?)" from cop cars and other PITA non-ambush alerts.
Thanks for the suggestion though.
One situation where LIDAR has notable non-scientific application is in traffic speed law enforcement, for vehicle speed measurement, as a technology alternative to radar guns. The technology for this application is small enough to be mounted in a hand held camera "gun" and permits a particular vehicle's speed to be determined from a stream of traffic. Unlike RADAR which relies on doppler shifts to directly measure speed, police lidar relies on the principle of time-of-flight to calculate speed. The equivalent radar based systems are often not able to isolate particular vehicles from the traffic stream and are generally too large to be hand held. LIDAR has the distinct advantage of being able to pick out one vehicle in a cluttered traffic situation as long as the operator is aware of the limitations imposed by the range and beam divergence. Contrary to popular belief LIDAR does not suffer from "sweep" error when the operator uses the equipment correctly and when the LIDAR unit is equipped with algorithms that are able to detect when this has occurred. A combination of signal strength monitoring, receive gate timing, target position prediction and pre-filtering of the received signal wavelength prevents this from occurring. Should the beam illuminate sections of the vehicle with different reflectivity or the aspect of the vehicle changes during measurement that causes the received signal strength to be changed then the LIDAR unit will reject the measurement thereby producing speed readings of high integrity. For LIDAR units to be used in law enforcement applications a rigorous approval procedure is usually completed before deployment. Jelly-bean shaped vehicles are usually equipped with a vertical registration plate that, when illuminated causes a high integrity reflection to be returned to the LIDAR, many reflections and an averaging technique in the speed measurement process increase the integrity of the speed reading. In locations that do not require that a front or rear registration plate is fitted headlamps and rear-reflectors provide an almost ideal retro-reflective surface overcoming the reflections from uneven or non-compliant reflective surfaces thereby eliminating "sweep" error. It is these mechanisms that when not fully understood cause the misconception that LIDAR is somehow unreliable. Most traffic LIDAR systems send out a stream of approximately 100 pulses over the span of three-tenths of a second. A "black box," proprietary statistical algorithm picks and chooses which progressively shorter reflections to retain from the pulses over the short fraction of a second.
Military applications are not yet known to be in place and are possibly classified, but a considerable amount of research is underway in their use for imaging. Their higher resolution makes them particularly good for collecting enough detail to identify targets, such as tanks. Here the name LADAR is more common.
Five lidar units produced by the German company Sick AG were used for short range detection on Stanley, the autonomous car that won the 2005 DARPA Grand Challenge.
Do they have LIDAR devices in Turkey?
Re: Radar Devices?
heres my contrarian solution to the police delima.... the only time i ever consider a 3digit run is in good road wide open spaces with minimal and spaced traffic then im concerned for the random guy at a distance...seems out here anyway the police stratergy is instant on, your nailed, never just running with the radar on makes a detector useful...also at speed it's not just an expensive ticket, more like careless driving ( yeah right ) and handcuffs/jail.....this seems to work and even better with a spotter.
Aug 27, 2008 11:38:16 PM
- Strategy_Dude
- Junior
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- Loc: Utah, USA , United States
- Posts: 55, Gallery
- Registered on: Mar 4, 2007
- Reply to: PandaMan
Re: Radar Devices?
I've had the V1, Escort 8500 x50 and K-40 in my car at the same time to compare and all are equally sensitive and robust. The nice thing with the V1 and K40 is that they will tell you if the radar is behind or out front. The nice thing with the k40 is that it's a nice clean, integrated and hidden install. The bad thing with k40 is expense. If you do get the k40, you need to make sure you have a good reputable installer that mounts the sensors properly. If they're not properly mounted, they don't work well at all. The other nice thing with the k40 is that you can get an integrated laser-diffuser.
Aug 27, 2008 11:42:43 PM
- MMD
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- Loc: usa
- Posts: 9652, Gallery
- Registered on: Dec 16, 2004
- Reply to: Strategy_Dude
Re: Radar Devices?
Yup. Mee Too (saved my a**).
V1 saved me about twice; had it since 2003!!
Cops _rarely_ use it in the way that gives you mere harmless reflections off of other cars or terrain anymore. They are muuuuuch more secretive/selective about emitting evidence of their proximity. They just seem to ambush _a_ car every five or ten (?) miles; pity if that car happens to be you.
You have to constantly drive very tactfully, very strategically to avoid giving cops an ambush opportunity. When doing so all you get is a _minimal_ amount of electronic countermeasure support from your V1; better-than-nothing: for sure. Definitely get "the best" because tickets suk.
I got my first Cincinnati Microwave "Passport" back in 1982(?), was a big box (approx 1.2x4x5.5 inches!) but worked like a DREAM!! I absolutely _ignored_ speed limits (when safe to do so) on expressways. Everytime it went off I slowed down and..., voila!..., there was the cop! WOW
_THOSE_ were the days!!!
Today the RD is a"better-to-have-than-not" piece of equipmnt, but as I said: counter-counter-measures seem to have been universally enacted making driving to avoid tickets much more of a major job.
V1 saved me about twice; had it since 2003!!
Cops _rarely_ use it in the way that gives you mere harmless reflections off of other cars or terrain anymore. They are muuuuuch more secretive/selective about emitting evidence of their proximity. They just seem to ambush _a_ car every five or ten (?) miles; pity if that car happens to be you.
You have to constantly drive very tactfully, very strategically to avoid giving cops an ambush opportunity. When doing so all you get is a _minimal_ amount of electronic countermeasure support from your V1; better-than-nothing: for sure. Definitely get "the best" because tickets suk.
I got my first Cincinnati Microwave "Passport" back in 1982(?), was a big box (approx 1.2x4x5.5 inches!) but worked like a DREAM!! I absolutely _ignored_ speed limits (when safe to do so) on expressways. Everytime it went off I slowed down and..., voila!..., there was the cop! WOW
_THOSE_ were the days!!!
Today the RD is a"better-to-have-than-not" piece of equipmnt, but as I said: counter-counter-measures seem to have been universally enacted making driving to avoid tickets much more of a major job.
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