Rardar Detector
#31
03-10-2007, 03:02 AM
Originally Posted by kc0iv
Originally Posted by yoopr
Years ago I was running down near Dallas and ran into a Radio Shack Driver and he Swore that if you took a 3' flourescent Tube and wrapped it with copper wire every few inches from one post to the other and then from the other post back the same way and hung it inside your truck it would absorb all the radiation from Radar.
What he said was that this is the way Microwave manufacturers check for Radiation leaks. He DID have one in his Truck It is a fact that a fluorescent tube can be lite by microwave. You don't even have to attach any wire to the tube. Microwave manufacturers have calibrated leak detection meters. In addition the harmful radiation level is way below what it takes to light a fluorescent tube. kc0iv
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#32
03-10-2007, 07:31 AM
Originally Posted by yoopr
Originally Posted by kc0iv
Originally Posted by yoopr
Years ago I was running down near Dallas and ran into a Radio Shack Driver and he Swore that if you took a 3' flourescent Tube and wrapped it with copper wire every few inches from one post to the other and then from the other post back the same way and hung it inside your truck it would absorb all the radiation from Radar.
What he said was that this is the way Microwave manufacturers check for Radiation leaks. He DID have one in his Truck It is a fact that a fluorescent tube can be lite by microwave. You don't even have to attach any wire to the tube. Microwave manufacturers have calibrated leak detection meters. In addition the harmful radiation level is way below what it takes to light a fluorescent tube. kc0iv I won't bore you with why it can work but I can say it won't. The first reason is the output power from a radar gun is way to low to excite a fluorescent tube short of it being almost directly in front of the fluorescent tube. Another main problem is even if the tube lite it could only affect the area around the tube. The radar echo would still happen on the rest of the truck body. Even the best stealth aircraft like the F-117, B2, the new F-22 & F-35 can't eliminate the echo they can only reduce some of it and reflect the rest. They still have a RCS (radar cross section). And that's only at selected radar frequencies. There is basically two ways to defect police radar. (1) Over power the detector. (2) Cause the detector to not be able to lock. Both require a high power transmitter. I guess a third way would be to generate enough power to blow the radar detector's Gunn-Effect diode. Again this would require a high power transmitter. All these would only work on limited radar frequencies. kc0iv
#34
03-10-2007, 07:57 AM
Originally Posted by Highwayman
Originally Posted by heavyhaulerss
this is what i read. some weigh stations have new technology that will detect a radar detector in a vehicle. even if the radar dedector is off. it senses & recognizes unique components inside the detector. so even if its in a box & no power to it d.o.t. can still get a reading on who has one. not all d.o.t.'s are equipped with this tech.
If a radar detector is off but still plugged in , then yes it still can be detected in some circumstances. But if a radar detector is off, and unplugged, as in no power going to the unit at all, then i cannot see how it can be detected (unless your truck is getting X-rayed, in which case they actually see the thing). The componentry in a radar detector isnt very different from the componentry of most modern car stereos. It is in fact, a radio receiver, just as your AM/FM is a radio receiver, only the radar detector is tuned to different frequencies. as a side note a radar detector DETECTOR is the same size as a radar gun and some police do have them in their cars
#35
03-11-2007, 01:04 AM
Originally Posted by flood
Originally Posted by Highwayman
Originally Posted by heavyhaulerss
this is what i read. some weigh stations have new technology that will detect a radar detector in a vehicle. even if the radar dedector is off. it senses & recognizes unique components inside the detector. so even if its in a box & no power to it d.o.t. can still get a reading on who has one. not all d.o.t.'s are equipped with this tech.
If a radar detector is off but still plugged in , then yes it still can be detected in some circumstances. But if a radar detector is off, and unplugged, as in no power going to the unit at all, then i cannot see how it can be detected (unless your truck is getting X-rayed, in which case they actually see the thing). The componentry in a radar detector isnt very different from the componentry of most modern car stereos. It is in fact, a radio receiver, just as your AM/FM is a radio receiver, only the radar detector is tuned to different frequencies. as a side note a radar detector DETECTOR is the same size as a radar gun and some police do have them in their cars kc0iv
#36
03-11-2007, 08:25 AM
I ran my beltronic's radar 24/7 when I was driving and it saved my ass many times.
It's funny listening to XM and some driver will be talking to Bozo or someone and you can hear the radar in the background going off... If you get pulled into the scale you better stash it and if you're in the company yard. I also ran my uniden scanner but it really didn't help much. I used it more for weather than anything.
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#37
04-02-2007, 06:03 PM
Radar detectors are banned from being in the drivers compartment, or in the case of a bus the entire thing, but are allowed in the sleeper berth of a truck.
Radar Detectors in Commercial Motor Vehicles DEPARTMENT OF TRANSPORTATION Federal Highway Administration 49 CFR Parts 390 and 392 [FHWA Docket No. MC-90-14] RIN 2125-AC69 Federal Register: January 20, 1994 AGENCY: Federal Highway Administration (FHWA), DOT. ACTION: Final rule. Applicability The final rule changes portions of 49 CFR parts 390 and 392 to directly affect driver of CMVs as defined in part 390, which include vehicles used in interstate commerce to transport passenger or property when the vehicle - (1) Has a gross vehicle weight rating or gross combination weight rating or gross combination weight rating of 10,001 or more pounds; or (2) Is designed to transport 16 or more passengers, including the driver, or (3) Is used to transport hazardous materials in quantities that require placarding: Vehicles that meet the above definition and are used exclusively in intrastate commerce also may be indirectly affected. Under the MCSAP, most States adopt the Federal Motor Carrier Safety Regulations and enforce the requirements with respect to both interstate and intrastate drivers and carriers. Section 390.5 defines “radar detector" as any device or mechanism that detects radio microwaves, laser beams or any other future speed limit measurement technology used by enforcement officials to measure the speed of CMVs upon public roads and highways for enforcement purposes. The definition would specifically exclude detectors that are: (1) Transported outside the driver's compartment of the vehicle; and (2) Completely inaccessible to, inoperable by, and imperceptible to the driver. Also:Radar Detectors §392.71 Under a rule that went into effect January 20, 1994, drivers are prohibited from operating a commercial vehicle if it is equipped with or contains any radar detector. Motor carriers shall not require or permit a driver to violate the restriction. A "radar detector" is defined in §390.5 as any device that will detect radio microwaves, laser beams, or any other future speed-measuring technology that law enforcement officers may use to enforce speed limits. Radar detectors are prohibited in the driver's compartment, regardless of whether they are plugged in or not. So if you have one and DOT or a cop catches you, as long as it is in the sleeper and not functioning you cannot be written up or given a citation. I hope this helps some of you speeders! Ha, this is the pot calling the kettle black,  [/b]
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