HOW RADARS AND RADAR DETECTORS WORK

Home » Automotive Join Sign in EzineArticles - Expert Authors Sharing Their Best Original Articles Custom Search Search Tim Robinson Platinum Quality Author Platinum Author | 18 Articles Joined: December 28, 2004 Gibraltar How Radars & Radar Detectors Work By Tim Robinson | Submitted On December 29, 2004 Recommend Article Article Comments Print Article What is a Radar? Radar is an acronym for radio detection and ranging. The Average Radar contains a K-Band microwave RF (radio frequency) transmitter whose signal gets reflected by the target object. The reflected signal will have a Doppler shift proportional to the target speed. This Doppler frequency shift is detected in the receiver, amplified, filtered, and then digitized in an analog-to-digital converter (ADC), and passed onto the digital signal processing (DSP) chip. Using complex algorithms, the DSP chip filters out false and low-level return signals to identify the speed of the desired target. The speed, along with various statistics and averages, is then displayed on the LCD. How is speed calculated? Speed is calculated using the difference between the transmit frequency and receive frequency (also known as the Doppler shift). How accurate are Radars? The Average accurate to within +/-1 mph. How does the user need to be positioned in relation to the moving object? The Average Radar works best when positioned in front of or behind the moving object. Can radar guns determine the speed of an object moving in any direction ? No, Doppler radar can only determine the relative speed of targets moving either toward or away from the radar. Does angle affect accuracy? A 12-degree angle should not affect performance. The average Radar is accurate to within +/-1 mph for a baseball 75 feet away at an angle of 12 degrees or less. A 20-degree angle at 60 feet away would result in an accuracy of +/-3 mph. The Radar detector only identifes a radar signal, while a Radar Detector a specially modulated field of light in front of the vehicle to muddle radar and laser gun readings. These types of Radar Jammers are legal because they transmit light instead of radio frequencies to make your vehicle electronically invisible to police radar and laser guns. Tim Robinson is the author of various Radar Detector [http://www.radar-detector-tips.com/] Ariticles, his Radar Detector website : [http://www.radar-detector-tips.com/] offers unique, no BS information, for free. Article Source: http://EzineArticles.com/expert/Tim_Robinson/1967 0 Comments | Leave a Comment Did you find this article helpful? Happy Face0 Sad Face0 Viewed 1,451 times Word count: 309 Article Tools EzinePublisher Report this article Cite this article Stay Informed Subscribe to New Article Alerts: Automotive Tim Robinson Email Address Subscribe We will never sell or rent your email address. Automotive Article Feed Automotive Article Feed Find More Articles Search Similar Articles Radar Detector Buyers Guide Can Police Use Laser Guns From Inside Their Car? The Differences between Laser and Older Radar Detectors Introduction to Radar Detectors Radar Detector Primer If You Want To Save Money On Your Purchase Of Radar Detectors Consider Buying Online Speed Camera Detectors: Understanding Different Radar Bands Radar Detector Matters Car Radar Detectors - Features You Shouldn't Be Without Speed Camera Detectors - Is Radar Or Laser More Effective? Recent Articles How to Maintain Safety on the Roads What To Remember When Choosing A Trailer Sell My Car For Cash Today: Top 5 Things To Consider Engineering Capabilities Of Defence Vehicle Manufacturers How to Deal With Car Accidents Tips On How To Import A Car Properly Top 7 Tips to Help You Drive Safely in the Rain Factors To Consider When Buying A Scooter Warning Signs That Indicate Not To Buy Used Cars What To Look For In A Defence Vehicle Manufacturer EzineArticles.com About Us FAQ Contact Us Member Benefits Privacy Policy Shop Site Map Blog Training Video Library Advertising Affiliates Cartoons Authors Submit Articles Members Login Premium Membership Expert Authors Endorsements Editorial Guidelines Terms of Service Publishers Terms Of Service Ezines / Email Alerts Manage Subscriptions EzineArticles RSS © 2017 EzineArticles All Rights Reserved Worldwide