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Florida Auto Insurance: Radar Detector Law & Legalities

By Insurance.com Posted : 02/19/2007

No one wants to get a speeding ticket and then pay more in car insurance. But are "radar busters" legal? The answer in Florida depends on the type of technology you use and how you use it.

Recent estimates suggest that over 10 percent of all drivers employ some sort of "radar-busting" technology on our nation's highways. This isn't that surprising, considering the advances in radar-detecting technology since the 70s. Drivers today can choose from a variety of radar detectors, laser detectors, scanners, jammers and stealth coatings designed to elude law enforcement officials. But before you decide to use one of these devices, you should be aware of the laws pertaining to them.

Radar & Laser Jammers
Under federal law it is illegal to jam or attempt to jam police radar signals. Many states also criminalize the mere possession of a radar jammer, so it is best to avoid such products altogether.

Police Scanners
The use of police scanners in Florida is illegal if installed or transported in vehicles unless you are either a licensed alarm system contractor, member of Press on assignment, licensed amateur radio operator or citizen with written permission from Chief of Police or Sheriff or Chief of Fire Department of your community.

Stealth Coatings
To date, neither Florida nor any other state has banned the use of stealth coatings to impair the ability of police LIDAR laser guns ("Light Detection and Ranging") to obtain an accurate speed reading of a vehicle. Stealth coatings first gained notoriety due to their defense applications (such as with the Stealth Bomber). Their efficacy on the roadways, however, remains to be seen although some testers claim that stealth coatings can reduce laser gun sensitivity by up to 50 percent (see http://www.radarbusters.com/2003lasercoatingsarticle.cfm ).

Radar & LIDAR Detectors
Under federal law, the use of radar and LIDAR detectors is illegal in all commercial vehicles over 10,000 pounds. For all other purposes, radar and LIDAR detectors are legal in Florida.

In light of the obvious conflict between speeding laws and radar detector use, law enforcement officials, safety advocates, and car insurance companies continue to lobby to legislators nationwide to ban the use of radar and laser detectors altogether. Thus far, they have only been successful in banning radar detector use in Virginia, Washington D.C., and on U.S. military bases.

Some speculate that one of the reasons that legislatures have been loathe to ban consumer use of radar detectors is that such bans could expose the inaccuracy of radar and laser-based speed detection systems. Independent studies have shown that radar and laser guns are susceptible to technical and operator error, leading some radar detection advocates to claim that over 25 percent of all radar-based speeding tickets are generated in error (see http://www.radarbusters.com/mistakesarticle.cfm). Some of the more common reasons for errors include:

  • Radio Frequency Interference (RFI) from sources such as radios, garage door openers, and police radar
  • Cosine errors generated by an inappropriate angle of the gun to the target
  • Mechanical errors caused by guns overheating or being out of alignment

Regardless of the accuracy of speed detection systems or the legality of radar detectors, one fact remains crystal clear in Florida-speeding is against the law. Accordingly, the best advice is for Florida drivers to rely on their common sense, rather than technology, when assessing the proper speed for the prevailing road conditions.

If you do get caught speeding and it lands on your record, you should compare car insurance quotes. Insurance companies don't treat infractions the same, and some companies will raise your rates more than others.  Be sure and shop around after any infraction to ensure your getting the best value.

For more information on safe driving in Florida, please visit http://www.dmv.org/fl-florida/defensive-driving.php. If you're interested in learning more about radar detectors, please visit the RadarBusters.com Buyer's Guide.

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