Police Lazers

[sAsLEX]

Tell you what, if someone DOES have a jammer there im willing to offer myself and my patrol car to test it to see how good it actually works.

most of the "Radar Jammers" on the market are shit, and do not output anything! Biggest hoax around. One of the Radar Technicians at work whipped himself up a jammer from some spare bits to trial and it worked but the legal implications meant he disposed of it.

[sAsLEX]

I didnt realise there were legal implications?? do you have to have a licence for it or something?

pretty sure that to transmit on certain freqs at certain powers you need some sort of license/certificate

plus certain freqs are banned from general use

[Marmoot]

Wouldn't a jammer be classified as 'perverting the course of justice' or 'interfering with police work' or 'interfering with police equipment'?

[Lou Girardin]

You need a licence to transmit RF over 1 watt (I think)
To do you for obstruction they'd need to prove you were speeding when you jammed them, but they were jammed so can't prove it.
A delicious catch 22 situation.

[madboy]

Many years ago I looked into radar jammers, and some US mag did a test on them. Some were a joke, some reduced the effectiveness of the radar by reducing the distance before it acquired the target speed, and one worked right up until you ran over the radar unit (if my memory serves me correctly). I'm not sure if this was K or Ka frequency. More recently I understand that the particularly unit that worked is no longer available. My understanding at present is that most radar jammers are useless, and the only way to get an effective one is by getting one that transmits, which as pointed out here is illegal.

Laser Jammers I don't know enough about to enter the debate.

I have heard rumours about someone who can set you up with the right jammin goods if need be.

And the fella who reckons cop cars are slow? Well yes they are in comparison to a 600+ sportsbike. But if you check the specs on a Commodore S, they don't run out at 200k. And I can assure you the popo don't back out at 200k. Of course, by that stage you're in the next suburb

But agree about the plate, or lack of. Only way to do a runner is plateless (or otherwise unreadable). Far too risky with those 2 magic numbers and 3 magic letters available for all the do gooders to see, remember and pick up their cellphones...

[scumdog]

But agree about the plate, or lack of. Only way to do a runner is plateless (or otherwise unreadable). Far too risky with those 2 magic numbers and 3 magic letters available for all the do gooders to see, remember and pick up their cellphones...

Until the next time you're jammed-in trying to lane-split and a cop notices you have no number plate.....and then realises you fit the description of the bike that did a runner the other day...hooboy THAT day could be a long one - even if you still get off.

[limbimtimwim]

Vehicle colour makes a difference too. It's not called 'ticket red' for nothing.
Tests in the States showed the hardest cage to get a reading on was a black mid '90s Camaro with the lights retracted. (It had no front plate)

I wonder if it would be possible to dope the fibreglass of the body of that car to absorb microwaves...

[madboy]

Until the next time you're jammed-in trying to lane-split and a cop notices you have no number plate.....and then realises you fit the description of the bike that did a runner the other day...hooboy THAT day could be a long one - even if you still get off.

I'll even admit to that one online when it happens. Will teach me for being lazy and not getting around to painting it black. Oh, you're looking for a black bike, with a rider wearing black? Yep, sure, there's only one of us in the greater Wellington area.

[scumdog]

I'll even admit to that one online when it happens. Will teach me for being lazy and not getting around to painting it black. Oh, you're looking for a black bike, with a rider wearing black? Yep, sure, there's only one of us in the greater Wellington area.

Just the one with no number plate will do.......

[madboy]

Just the one with no number plate will do.......

Which one with no numberplate? Was it the one against the red mufti on the Takas? The wheelie past the HP car last Tuesday? The dog handler on the mway last Saturday night? You'll have to be more specific.

[scumdog]

Which one with no numberplate? Was it the one against the red mufti on the Takas? The wheelie past the HP car last Tuesday? The dog handler on the mway last Saturday night? You'll have to be more specific.

Getting closer......


It doesn't matter - no number plate = stop for unspecified time + a liklihood of a ticket..

[spudchucka]

I didnt realise there were legal implications?? do you have to have a licence for it or something?

Its an offence to fuck with police speed detection devices, or something like that. There's an offence there somewhere that covers it.

[Lou Girardin]

Its an offence to fuck with police speed detection devices, or something like that. There's an offence there somewhere that covers it.

If there isn't you can just make one up.

[Pixie]

I wonder if it would be possible to dope the fibreglass of the body of that car to absorb microwaves...

Fibreglass does absorb microwaves.They are only strongly reflected by metal.
Of course, behind the fibreglass is a nice shiny (to microwaves) lump of iron.

[Pixie]

A radar jammer would be possible, just to give false returns. Stealth is almost impossible to do for a bike without unorthodox designs.

A powerful radar emitter of the right frequency etc should be enough to kill the radar transmitters return/reflection.

Same concept as a laser jammer.

All that is required to jam laser or radar is to transmit a signal that will tell the device in question that you are going slower than you really are and which is stronger than the return echo from the laser/radar.
The power required is minimal.
Remember;whatever the power output of the cops' devices emitter, the echo is many orders of magnetude less.
In the case of a laser gun, an array of IR LEDs transmitting a 4 Mhz pulse train will give an error reading because the laser gun will see a stationary object 40 odd metres ahead.