How far out can mobile speed cameras check you?

Soldato
Joined
4 Nov 2003
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Location
Edinburgh
I've heard figures like 1km which seems a lot, but how accurate are they at 1km surely the opperator wobble and wind dissrupt the process?

Is there a legal limit to how far out they can check and use against you?

Basically i'm setting my TomTom up at the moment and i'm wondering what the minimum i can have as a warning on 50/60/70mph mobile cameras (motorway camera basically).

:)
 
Pretty decent range on the Li 20/20 AFAIK, I was sighted at something daft like 900 metres which is a fair old distance.
 
Pretty decent range on the Li 20/20 AFAIK, I was sighted at something daft like 900 metres which is a fair old distance.

900 metres! Jesus, so 800 yards isn't gonna cover me right :p

I was also aware they weren't that accurate (well hand held) as they can ride down a sloping bonnet etc... But over 900m surely a speed can't be acurately taken?

Any guess' as to how far i should set my reminder?
 
You are wasting your time setting a laser detector anyway. Unlike a radar detector, which picks up the backscatter before you get into the beam path, a laser detector picks up the beam itself. Which means it detects the beam because the beam is now on your car. It tells you that you've just been had. It's already far too late to slow down unless the operator decides to take a second reading - which is rare.


M
 
From the ACPO Manual

"Hand-held devices are capable of measuring vehicle speeds from a minimum range of 50 feet to a maximum of 2,000 feet and recording speeds from a minimum of 5mph to a maximum of 155mph. Operators should avoid carrying out measurements for enforcement purposes at the extremity of the measurement field."

The lasers are certainly capable of measuring speed beyond this distance, but the chances of errors increases greatly. Not that the scamera pratnerships are worried about such issues.
 
You are wasting your time setting a laser detector anyway. Unlike a radar detector, which picks up the backscatter before you get into the beam path, a laser detector picks up the beam itself. Which means it detects the beam because the beam is now on your car. It tells you that you've just been had. It's already far too late to slow down unless the operator decides to take a second reading - which is rare.
From what I know, the beam has to be on your car for a certain amount of time for it to get a reading that's considerable as evidence - it's not instant.
 
You are wasting your time setting a laser detector anyway. Unlike a radar detector, which picks up the backscatter before you get into the beam path, a laser detector picks up the beam itself. Which means it detects the beam because the beam is now on your car. It tells you that you've just been had. It's already far too late to slow down unless the operator decides to take a second reading - which is rare.


M

What? Laser, where did i mention that? I'm just updating my POI's on my TomTom, and had a rethink about how far in advance i'd like to know about possible mobile locations...

2000 feet is around 600 yards right? How come leon, and that website state otherwise (from experience), is this for the static van rather than the handheld (very unreliable over distance!) guns?
 
guy i know whos job it is to sit on his ass with a speedgun all day and catch people reckons with the newest guns that if you can see it in the distance and your speeding just about to hit the brakes then its caught you :(

id call him a mate but his job ruins that :p
 
you mention wasting time setting a laser detector

he didnt mention he owns or plans to own a laser detectro :)

his tom tom has all the popular trap locations on the maps and he just wants to set the distance it goes "speed camera alert" or whatever it says
 
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