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How Radar Works  
How does radar work?
Police radar transceivers, including Gatso cameras and Radar guns, operate by sending out radio signals at a set frequency which are reflected by the target vehicle. The reflected signal's frequency is shifted in direct proportion to the vehicle's speed and this shift is used by the transceiver to calculate the vehicles exact speed.

How do detectors detect radar?
A radar signal is conical in shape much like a torch beam. At 200 yards, the normal operating range of a radar gun, the signal can be as wide as a dual carriageway. most of the signal therefore, goes past the target and on up the road reflecting off trees and houses etc eventually becoming 'radar scatter'. Snoopers are extremely sensitive radio receivers tuned to these frequencies and can detect very small particles of 'radar scatter' at up to 2 miles in some cases.

Are Radar Detectors Legal?
Following an Appeal Court ruling in January 1998 we have been advised that it is completely legal to own and use a Snooper Safety Alert System in the UK. It is illegal in France and Belgium and we strongly recommend that you check local legislation before using this product outside of the UK.

How can you detect a Gatso camera?
Although Gatso cameras face away from the traffic and operate at very low power they still emit 'radar scatter' which can be detected by a Snooper, albeit at a much reduced range. As Gatso cameras are positioned in known accident 'Hotspots' advanced warning from a radar detector can ensure that you are concentrating fully through a potentially hazardous area.

How effective are radar detectors?
Our range of radar detectors can be highly effective as they have been designed specifically for use in the UK and Europe to detect most speed monitoring systems currently using a radar or laser beam to determine your speed, effectively ensuring that you are fully aware of both your speed and your surroundings. And now the introduction of GPS technology on some of the more sophisticated safety warning systems ensures that you can be made alert of more police speed monitoring systems than ever before.

 
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