large_x7 Posted October 13, 2004 Report Share Posted October 13, 2004 Mythbusters on Discovery is doing a segment on what does and doesn't work for disguising your car from radar and laser. I might actually watch this episode! Quote Link to comment Share on other sites More sharing options...
CRed05 Posted October 13, 2004 Report Share Posted October 13, 2004 im watching it... Quote Link to comment Share on other sites More sharing options...
Buck531 Posted October 13, 2004 Report Share Posted October 13, 2004 Same here smile.gif . "do not.. under any circumstances, try this at home" smile.gif . They already did tests with the paint and foil on the RC car. Didn't really do much. Hell, they put that spray paint stuff on there and the freakin' car didn't even move smile.gif . Quote Link to comment Share on other sites More sharing options...
controler Posted October 14, 2004 Report Share Posted October 14, 2004 I missed it, what ended up happening? Quote Link to comment Share on other sites More sharing options...
Guest Rromanitas Posted October 14, 2004 Report Share Posted October 14, 2004 Yea... interested. However, I think that show is really bias towards protecting law enforcement... Quote Link to comment Share on other sites More sharing options...
BloodRed Posted October 14, 2004 Report Share Posted October 14, 2004 Protecting law enforcement, did you see they even showed you what you needed to remove to tear off a back axle on a Vic with a cable. j/k Quote Link to comment Share on other sites More sharing options...
CRed05 Posted October 14, 2004 Report Share Posted October 14, 2004 I was too busy reading posts on here that i forgot to see that part, id like to know what happened too, is there anything that does help? Quote Link to comment Share on other sites More sharing options...
Buck531 Posted October 14, 2004 Report Share Posted October 14, 2004 Originally posted by Chris R: I was too busy reading posts on here that i forgot to see that part, id like to know what happened too, is there anything that does help? No.. nothing helped. Everything they tried failed. Quote Link to comment Share on other sites More sharing options...
desperado Posted October 15, 2004 Report Share Posted October 15, 2004 I have ALWAYS loved the bullshit that I have heard over the years working in CB shops that the truckers get took on. The very best one was the 18 inch florsent light bulb wrapped with 12 gauge wire. I knew a guy that was getting $40 a piece out of those and couldn't make em up fast enough to keep em in stock. And NO they didn't work. You have to understand HOW radar actually works to understand how it can be jammed. Basically, a microwave signal comes out of the radar unit, is bounced off your can and then received back by the radar unit. Something called DOPLAR SHIFT occurs when the radar is reflected off your can. What this means is that the frequency of the radio signal changes slightly. Anyone that has ever played with a fully fuctional radar unit has heard the tones it generates, these tones, and their pitch, are the doplar shift. The speed is indicated by the specific frequency of the shift, higher frequencies mean higher speed. This is also why tuning forks are used to calibrate radar units. SO, NOTHING that is passive, will effect radar, the only things that work, are active units, that transmit a signal. The way to tell if a radar jammer is passive or active is simple, if it will set off your radar detector it is an active unit. If it will not setoff your radar detector then it is a passive unit and is totally worthless. Now, the issue being that it HAS to transmit is not enough, because of the frequencies involved, the microwaves being in the gigahertz range, and the doplar shift being in the range that you can hear, 70 MPH is 3500 Hz, the transmitted frequency must be received, and then transmitted back at the EXACT same frequency, OR at frequency that's difference is UNDER the doplar shift frequency of a car running at or under the posted speed limit for that strech of road. What this means is that if you are running a jammer that says you are running 55, and you roll through a small town, even when you are sitting still, the police radar will show you running 55 MPH, of course if the speed limit is 35 and the radar gun in Jonnie Laws crusier says you are doing 55, your gonna get a ticket. ANd remember, X, K, and Ka ALL run at different frequencies, and have different doplar shift frequencies, so one jammer will only work for one type of radar unit. LASER Laser is a bit different in the way it works. It doen't specifically need the signal bounced back, the laser, at a specific infared wavelength, is pointed at your car, typically the license plate, or the headlight is iluminated with the laserbeam. It figures the distance to your car by the length of time that it takes for the laser to leave the gun, and iluminate the target, then it does the same thing a second time, the speed is figured by takeing the change in distance from the first shot to the second shot over a specific amount of time, then it figures your speed from that. The ONLY way to jam this is to have a light source, at the same wavelength of infared that the laser is using and to have it brighter than the reflected beam, and be CONSTANTLY lit up. This confuses the laser gun by having in think that the laser iluminates immediatly, which it doesn't, there is a lag, even as small as it is, and iliminates that lag for both shots, since it can not acurately measure the distance either time the laser gun error's and no reading is given. But the HAS to overpower the reflected beam or it will simply not work. http://www.escortstore.com/jammer.htm Some intersting reading about the junk out there, and the few that work. Quote Link to comment Share on other sites More sharing options...
Miller Posted October 15, 2004 Report Share Posted October 15, 2004 I feel let down. Quote Link to comment Share on other sites More sharing options...
Total Sign Posted October 20, 2004 Report Share Posted October 20, 2004 Laser is a bit different in the way it works. It doen't specifically need the signal bounced back, the laser, at a specific infared wavelength, is pointed at your car, typically the license plate, or the headlight is iluminated with the laserbeam. In Ohio... They must get your license plate. If you get a laser ticket, and have no front plate, easily beatable. Quote Link to comment Share on other sites More sharing options...
SlowZ06 Posted October 21, 2004 Report Share Posted October 21, 2004 Originally posted by Assured Risk: Laser is a bit different in the way it works. It doen't specifically need the signal bounced back, the laser, at a specific infared wavelength, is pointed at your car, typically the license plate, or the headlight is iluminated with the laserbeam. In Ohio... They must get your license plate. If you get a laser ticket, and have no front plate, easily beatable. I always thought so too. Not so, according to a prosecuting attorney downtown. I got a laser ticket for 74 in a 65 and laughed at the cop inside because he wrote me a failure to display citation for no front tag on the same ticket. I pointed this out, and the prosecutor didn't seem to care. I go back to court next Thursday... looks like I better do some checking up on the ORC concerning this. EDIT: Did some research; as it turns out, there is no distinction made between radar and laser guns in terms of regulating their use, according to the ORC. [§ 4511.09.1] § 4511.091. Arrest or citation based on radar, timing device or radio message from another officer. (A) The driver of any motor vehicle that has been checked by radar, or by any electrical or mechanical timing device to determine the speed of the motor vehicle over a measured distance of a highway or a measured distance of a private road or driveway, and found to be in violation of any of the provisions of section 4511.21 or 4511.211 [4511.21.1] of the Revised Code, may be arrested until a warrant can be obtained, provided the arresting officer has observed the recording of the speed of the motor vehicle by the radio microwaves, electrical or mechanical timing device, or has received a radio message from the officer who observed the speed of the motor vehicle recorded by the radio microwaves, electrical or mechanical timing device; provided, in case of an arrest based on such a message, the radio message has been dispatched immediately after the speed of the motor vehicle was recorded and the arresting officer is furnished a description of the motor vehicle for proper identification and the recorded speed. Quote Link to comment Share on other sites More sharing options...
Total Sign Posted October 21, 2004 Report Share Posted October 21, 2004 I have beat one that way. Call the prosecutor, and ask how they know what car they got when shooting laser. Quote Link to comment Share on other sites More sharing options...
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