Radars detectors legal?

[denill]

You really did hide behind the door when God gave out humour.

You still here?

IT SIMPLY WASN'T INTERESTING ENOUGH TO READ THAT FAR.

Still reading stuff that you don't find interesting?

[denill]

You just recycled an already abused derogatory comment for no good reason other than as a fishing expedition.

Sorry, but your vocation in life is at the bottom of the pile IMO and not one I would choose. And you would naturally prefer to regard the criticism of that vocation as trolling.

If you've been brainwashed/indoctrinated into thinking at the end of the day that you have done a good days work in the interests of humanity - do so. I s'pose someone has to do it.

The analogy I used earlier has upset you?

[pritch]

They just don't get it!

I think "they" get it OK. The upper echelons of the hierarchy don't get it.

Then again they don't give a shit, it ain't their arse on the line late at night in the wrong part of town or out in the middle of nowhere.

[rwh]

The analogy I used earlier has upset you?

http://en.wikipedia.org/wiki/Godwin's_law

See the Corollaries section. You lost.

Richard

[spudchucka]

Sorry, but your vocation in life is at the bottom of the pile IMO and not one I would choose. And you would naturally prefer to regard the criticism of that vocation as trolling.

If you've been brainwashed/indoctrinated into thinking at the end of the day that you have done a good days work in the interests of humanity - do so. I s'pose someone has to do it.

The analogy I used earlier has upset you?

No, it hasn't upset me at all, I just think that its pathetic and melodramatic bullshit.

Public opinion of police is a two edged sword, you can't do the work required of police without upsetting one sector of society or another for various reasons. And, if the police went about their work with the primary objective of keeping the public happy at all costs then you would have a corrupt force in no time.

You're making a big fuss over the 10kph tolerance and accusing me of being brainwashed and indoctrinated because I say its a fair tolerance. And now you think you can comment on the work I do personally and criticise me if I think I've done a good days work. Get a grip of reality, you don't even know what I do on a daily basis.

I'm glad that its a job you wouldn't choose, its a better organisation because of that, thank you. You are right though, somebody does have to do it, you should be grateful that there are good people around that have the guts to step up and have the strength and fortitude required to withstand the daily moaning of ignoramuses.

[Grahameeboy]

No, it hasn't upset me at all, I just think that its pathetic and melodramatic bullshit.

Public opinion of police is a two edged sword, you can't do the work required of police without upsetting one sector of society or another for various reasons. And, if the police went about their work with the primary objective of keeping the public happy at all costs then you would have a corrupt force in no time.

You're making a big fuss over the 10kph tolerance and accusing me of being brainwashed and indoctrinated because I say its a fair tolerance. And now you think you can comment on the work I do personally and criticise me if I think I've done a good days work. Get a grip of reality, you don't even know what I do on a daily basis.

I'm glad that its a job you wouldn't choose, its a better organisation because of that, thank you. You are right though, somebody does have to do it, you should be grateful that there are good people around that have the guts to step up and have the strength and fortitude required to withstand the daily moaning of ignoramuses.

Cushty geezer +1

Geeze it is sad when on the one hand KBers say that we have a common interest ie bikes but slag off cops on this site.

Denill is in Denill

[huck farley]

I met a guy at the track day Saturday with a large red BMW , I have never seen so much electronic trickery installed on a bike !
Everything was hidden, detector, front and rear jammer units !
Guess he was serious ? Gaz.

Gee whiz the guy you met would be better of racing a bike if he likes speed. It would probably cost less than all the paraphernalia he has hidden on his Beemer.

Don't worry the law are not idiots they will soon wake up to his trickery as you describe it . By the sounds when he does get sprung the cop will issue enough tickets to have his demerit points well over the 100 to loose his licence. So he will be walking home!!

[davereid]

They don't actually. There are jammers which jam lasers, but you'sd need a truck load of elctronics to jam a microwave radar (Ka band).

I'd love to have a go at building a jammer... but the local police won't loan me a radar gun to test it against.

Principle (a)
Radar is Doppler Shift.. so you have an outgoing carrier which reflects off a vehicle and you get a return signal at a different frequency.

So spectrally, it looks just like single sideband... so blasting a carefully modulated AM carrier at it should stop it working, as it will see multiple targets.

Catch : Illegal in 52 states as you don't have a licence to transmit on that frequency.
Un-Catch : NOT Illegal in N.Z. as it is a public band here, licenced under a general licence for radiolocation. ie Radar. So as long as the unit you buils actually does something legal, its side effect of jamming police radar is irrelevant !

Principle (b)
Police radar relies on reflection off the oncoming vehicle.

Why not make a really good reflector...and use it cunningly..

The plan..

35Ghz has a wave length of 8mm. So a short bit of wire, 8mm long is resonant, and will be a much better reflector than your car.

Get a 200mm longish, round bit of wood, like an old shovel handle.

At 8 mm spacings from one end to the other, glue on 25, 8mm long "reflectors". This is a really good target for the radar unit.

The do it again, a bit further around the circumfrence of your handle.

Keep doing it until you have dozens of little reflectors on your handle.

Now, place the handle behind a 200mm long bit of angle iron or aluminium. Arrange things so that the very top reflectors are just higher than the top of the aluminium, as viewed from the police car.

Now spin the handle with a small motor.

How does it work ?

From the police radar point of view, all it can see is the row of reflectors at the top of your device. But they are moving, as you are spinning them with a motor. And they are moving at a speed you control.!

You should be able to preset any speed you want to be shown on the police radar unit.

"Stalkers" would be very vulnerable to this technique, as they try and process both highest speed and strongest target.

This would create the crazy result where the police claim "one vehicle in beam" but the radar unit shows two, entirely different speeds.

Off to the workshop lads !

[huck farley]

Only one company has ever produced a radar jammer (scorpian ka jammer) it costs $1500USD and takes up most of your dash on a car. Would be ridiculous on a bike. Trademe is full of people claiming to sell radar jamming detectors that simply dont work.

Listen to Slopster what he is telling you all out there is very, very, true. Don't have a bar of them. They do not work. I was advised by a Bel technician in the USA that Jammers are a 100% useless, and do "not" work. If you do buy one, and it goes of whilst out on your bike. It will only be reminding you you will be getting a ticket. (His words not mine)

[davereid]

Listen to Slopster what he is telling you all out there is very, very, true. Don't have a bar of them. They do not work. I was advised by a Bell technician in the USA that Jammers are a 100% useless, and do "not" work. If you do buy one, and it goes of whilst out on your bike. It will only be reminding you you will be getting a ticket. (His words not mine)

I'm not really sure thats entirely true.

The ideas in my previous post on how to build a jammer are technically quite accurate !

In the USA, an active jammer would be illegal due to licensing, and the FCC would hammer any company that made or sold such a device.

Not so here, its a public use radio band in NZ.

EDIT - particularly PLAN B ! as its a passive system.. as used by the UK in WW2

[madandy]

Lets not get all personal here fellas...
Point is good RDs work when used as prescribed and when one team builds a better revenue gatherer the other will build a better RD. It's been going on since 1972.
It WONT stop by simply banning the use of RDs just like banning drugs has failed to stop people getting high. It just forces it underground.

There's one statistic I'd like to see, if it exists and that's how many cars involved in serious or fatal accidents were equipped with a RD at the time of the accident?
Are we safer road users, those of us who use RDs or we just avoiding the speed tax?
Should we keep our eyes up, scanning the road ahead to the vanishing point & back, maintaining a sensible pace for the conditions, our equipment and our own skills or should we divert our attention to that little dial where the space between two increments 10km apart is mere millimeters?

[scumdog]

I feel sorry for all you worry-warts who view a radar detector/jammer as a life support sytem, FFS get a life and learn to ride without getting tickets.

I've had ONE tocket in 40 odd years of driving and riding (and no, I HAVN'T always been in this job) so either I've always been a saint on the road (pfft!) or???

I know one thing, I've never felt the urge to clutter up my car/bike with a radar detector.

[huck farley]

Well your huge post has failed to convince me Dave Reid that it will work. There is only one way to find out and that is to build it then go roaring past a cop at 140kph that's the only time that the law will lend you a laser. You had better hope that your contraption works. Otherwise you may be walking for a while.

[bucket boy]

Well your huge post has failed to convince me Dave Reid that it will work. There is only one way to find out and that is to build it then go roaring past a cop at 140kph that's the only time that the law will lend you a laser. You had better hope that your contraption works. Otherwise you may be walking for a while.

then the copper can just say an estimated speed and you still lose

[The Pastor]

I'd love to have a go at building a jammer... but the local police won't loan me a radar gun to test it against.

Principle (a)
Radar is Doppler Shift.. so you have an outgoing carrier which reflects off a vehicle and you get a return signal at a different frequency.

So spectrally, it looks just like single sideband... so blasting a carefully modulated AM carrier at it should stop it working, as it will see multiple targets.

Catch : Illegal in 52 states as you don't have a licence to transmit on that frequency.
Un-Catch : NOT Illegal in N.Z. as it is a public band here, licenced under a general licence for radiolocation. ie Radar. So as long as the unit you buils actually does something legal, its side effect of jamming police radar is irrelevant !

Principle (b)
Police radar relies on reflection off the oncoming vehicle.

Why not make a really good reflector...and use it cunningly..

The plan..

35Ghz has a wave length of 8mm. So a short bit of wire, 8mm long is resonant, and will be a much better reflector than your car.

Get a 200mm longish, round bit of wood, like an old shovel handle.

At 8 mm spacings from one end to the other, glue on 25, 8mm long "reflectors". This is a really good target for the radar unit.

The do it again, a bit further around the circumfrence of your handle.

Keep doing it until you have dozens of little reflectors on your handle.

Now, place the handle behind a 200mm long bit of angle iron or aluminium. Arrange things so that the very top reflectors are just higher than the top of the aluminium, as viewed from the police car.

Now spin the handle with a small motor.

How does it work ?

From the police radar point of view, all it can see is the row of reflectors at the top of your device. But they are moving, as you are spinning them with a motor. And they are moving at a speed you control.!

You should be able to preset any speed you want to be shown on the police radar unit.

"Stalkers" would be very vulnerable to this technique, as they try and process both highest speed and strongest target.

This would create the crazy result where the police claim "one vehicle in beam" but the radar unit shows two, entirely different speeds.

Off to the workshop lads !

you forgot the tin foil hat you have to wear.