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radar detector

SCR34M3R
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Oosh Veteran

Oosh

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what does it pick up? fixed cameras and handhelds?

The only thing that can warn you of fixed camera, apart from the signs, is something like road angel which stores their GPS co-ords. Fixed units DO NOT transmit any Radar/Lidar energy to detect they use sensors in the road.

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Oosh Veteran

Oosh

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They can detect the camera van but only while it's taking a photo of someone. Not much good if you're the only one speeding.

Edit: Raistlin, I'm sorry for the thread hijack by the way...

Actually the Radar units use a CONSTANT WAVE, therefore they constantly emit detectable energy, the majority of it is concentrated in the main lobe which faces from the front of unit. Most are slant-radar and go ~20 degrees from parallel to the road.

So you're most likely to detect them as you approach head-on, however, traffic radar is not mil-spec kit so they emit a fair amount of energy in to their side-lobes too, which makes them detectable from behind.

Image of radar lobes here, not sure what it's from but you can get the idea, imagine the 0C point facing out from the front of the camera car angled in to the road.

Laser, or LIDAR, which is the hand-helds the cops use is only on when they hold the trigger down. So you get far less warning when they target you. They typically have to hold it on you for 3 secs so if the laser warning goes off you've gotta hit the skids QUICK before they get a good reading.

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