Full beam prevents detection?
Discussion
Hi there, new to this topic so apologies if i'm covering old ground.
I was thinking that because i've only seen scamera vans operate in daylight, does this mean they can't read a plate at night due to the lights. I appreciate they can still detect speed but without a picture of your plate then they don't know who was speeding.
If this is the case then surely putting on your main beam when approaching a van would also prevent them from recognising your plate. Or am I being naive to the workings of these satanistic devices.
I was thinking that because i've only seen scamera vans operate in daylight, does this mean they can't read a plate at night due to the lights. I appreciate they can still detect speed but without a picture of your plate then they don't know who was speeding.
If this is the case then surely putting on your main beam when approaching a van would also prevent them from recognising your plate. Or am I being naive to the workings of these satanistic devices.
negative creep said:
but then surely they could do youfor flashing your lights? Have seen stories of people arrested for doing the same thing to warn other drivers
If the van is parked and you are driving with no moving vehicles nearby flashing your lights is surely an appropriate method of warning the parked vehicle of your precense and warning them not to pull out in front of you.
I know someone with BMW 330 and he always drives during the day with Xenon headlights (on dip) and his front fogs on because he's convinced that either the lights mess up the laser or the camera can't see the plate. He's never been done (or even stopped for having his fogs on) so he's convinced it works - and he drives quickly, although not mad.
Personally, I think it's bollox, and he's just been dead lucky. If anything, it would surely make the car stand out more.
Personally, I think it's bollox, and he's just been dead lucky. If anything, it would surely make the car stand out more.
My turn!
Lidar and ANPR setups work at night as they provide their own special ‘invisible’ light.
A powerful fog lamp directed directly at a lidar gun may result with an error code being reported, but only if the vehicle is at a significant distance (the receiver sensor has a narrow field of view and the operators are trained to aim between the headlamps).
Lamps could conceivably affect ANPR cameras (due to blooming), but chances are they wont because the beams are aimed ahead but the camera will be pitched down or across, hence the camera shouldn’t be ‘dazzled’.
HID lamps emit very little IR. Even though they are perceived to be brighter, they’re actually less effective at overloading IR based ANPR cameras and lidar guns than filament lamps.
CDs on/behind the windscreen (or anywhere on the vehicle) for protection, is complete bollox; don’t fall for that one.
Lidar and ANPR setups work at night as they provide their own special ‘invisible’ light.
A powerful fog lamp directed directly at a lidar gun may result with an error code being reported, but only if the vehicle is at a significant distance (the receiver sensor has a narrow field of view and the operators are trained to aim between the headlamps).
Lamps could conceivably affect ANPR cameras (due to blooming), but chances are they wont because the beams are aimed ahead but the camera will be pitched down or across, hence the camera shouldn’t be ‘dazzled’.
HID lamps emit very little IR. Even though they are perceived to be brighter, they’re actually less effective at overloading IR based ANPR cameras and lidar guns than filament lamps.
CDs on/behind the windscreen (or anywhere on the vehicle) for protection, is complete bollox; don’t fall for that one.
Some headlights affected my ProlaserII gun, notably Omega ones & similar. Otherwise your average headlamps have no effect whatsoever, though the sacmera vans use regular video cameras to film "the evidence" they may well have their images overloaded by certain light. ANPR/SPECS is easily flummoxed by not having that 3M product on the back of your plate 
or no front plate at all.
or no front plate at all.deltafox said:
Anpr and specs also have a polarising filter to help reduce overload due to bright headlights.
What makes you way that? Do you have a source? The output of the LED array is unpolarised, the beam from the array will bounce off the plate (nearly perpendicular) unpolarised. The beam from your headlamps will also be unpolarised, so a polarising filter will attenuate the light from both equally. I don't see how a polarising filter could aid VRM discrimination.
Perhaps you are thinking of the LTI2020? The LTI2020 has polarising filters on the scope to aid operator comfort of sighting of the target, and on the camera attachment to eliminate windscreen glare.
smeggy said:
CDs on/behind the windscreen (or anywhere on the vehicle) for protection, is complete bollox; don’t fall for that one.
I have heard that if the CD is positioned in the grille near the number plate, the laser will be diffused by the surface of the CD and will cause an error to appear on the LTi 20-20.
bond-007 said:
smeggy said:
CDs on/behind the windscreen (or anywhere on the vehicle) for protection, is complete bollox; don’t fall for that one.
I have heard that if the CD is positioned in the grille near the number plate, the laser will be diffused by the surface of the CD and will cause an error to appear on the LTi 20-20.
'Diffused' may as well mean 'placing nothing there' so that idea is fundamentally flawed.
The operators will aim for your retro-reflective VRM, this being overwhelmingly more reflective than the CD anyway.
bond-007 said:
I have heard that if the CD is positioned in the grille near the number plate, the laser will be diffused by the surface of the CD and will cause an error to appear on the LTi 20-20.
And I have heard that if you hang the CD from the rear view mirror it will dispel evil spirits from the car, and the resulting excess of good luck will cause the speed camera operator to look away just at the critical moment as you drive past.
GreenV8S said:
bond-007 said:
I have heard that if the CD is positioned in the grille near the number plate, the laser will be diffused by the surface of the CD and will cause an error to appear on the LTi 20-20.
And I have heard that if you hang the CD from the rear view mirror it will dispel evil spirits from the car, and the resulting excess of good luck will cause the speed camera operator to look away just at the critical moment as you drive past.
Nah your getting Konfuusd with F'kn schui
I reckon
If you remove the cup holder and place them in door opening it creates more of a through area
thus; better facilitating the introduction of wealth & good fortune,
into your motah'
but then Mike brewer taught us all that in
deals on wheels
[UK GOLD]
I was in Weston Super Mare last night, driving along a two lane DC and up ahead appear two police motorbikes parked on the nearside.
One of them had his bike facing back towards the traffic and was leaning over the back, elbows resting on the seat. He was operating a very small camera which looked like one of the latest camcorders. I went round twice to get a better look. Is this an infrared camera?
I've never seen one that small before.
The road has street lamps and is quite well lit. Incidentally the speed limit is 40 and I 've only ever seen one accident near this road. That was a couple of months ago when a police car tried to exit a round about too quickly and under steered through the central reservation, across the opposite carriageway and up over the kerb/pavement, stranded with buckled wheels. Young officer in a Focus I believe.
One of them had his bike facing back towards the traffic and was leaning over the back, elbows resting on the seat. He was operating a very small camera which looked like one of the latest camcorders. I went round twice to get a better look. Is this an infrared camera?
I've never seen one that small before.
The road has street lamps and is quite well lit. Incidentally the speed limit is 40 and I 've only ever seen one accident near this road. That was a couple of months ago when a police car tried to exit a round about too quickly and under steered through the central reservation, across the opposite carriageway and up over the kerb/pavement, stranded with buckled wheels. Young officer in a Focus I believe.
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