Police Lazers [Archive] - Kiwi Biker forums

The Stranger

21st February 2006, 12:48

So what is it with the lazer cops?
I have seen several of late when I am clearly speeding. But they don't seem interested.

Now I am not complaining one bit, just wondering why it is they leave me alone.
Like last night, left late and in a bit of a hurry to get to Motohaus. Doing 135 on the motorway come over a slight brow and hello mr plod with a lazer.
On with the picks.
He puts the Lazer down as I get closer and I am thinking he is about to follow, I'm screwed. But hey they were being nice yet again.

Do they need time to get a lock?
Do they need a constant speed during this time?
Is it hard to get a fix on a bike?

Fishy

21st February 2006, 12:51

Did he have a half eaten doughnut in his other hand? maybe he wanted to finish it before he chased anyone?. Sometimes I think they just can't be arsed chasing bikes.

bugjuice

21st February 2006, 12:55

they don't always let you go :weep:

might just be that he didn't get a lock-on. I've been told that the beam that goes out from the gun is the size of a tennis ball. The signal that's bounced back is the size of a pingpong ball. So to hit a moving target requires some skill. To pick a bike is even more.. Could be wrong, but it could just be the case that you were too hard

Lesson? When you see a cop, dart around like a mad mosquito!

Ixion

21st February 2006, 12:59

Hm, now y'mention it, I've noticed that too. Thought it must be my cherubically innocent good looks.

imdying

21st February 2006, 13:02

Hm, now y'mention it, I've noticed that too. Thought it must be my cherubically innocent good looks.Or pity teheheheheh :Pokey:

Maybe you've struck a bunch of noobs who're just out their getting some time down so they can get qualified/certified?

SimJen

21st February 2006, 13:03

Probably the magical world of "Discretion".
The seamingly meaningless boundary where law meets policemens brain and a result sometimes slightly more favourable comes out.
Either that or you're just a lucky prick :)

limbimtimwim

21st February 2006, 13:05

Like last night, left late and in a bit of a hurry to get to Motohaus. Doing 135 on the motorway come over a slight brow and hello mr plod with a lazer. Bike cop? I get the feeling sometimes they are more interested in your bike than your speed :-)

Ixion

21st February 2006, 13:09

Serious note, I wonder if it is genuinely difficulty in getting a fix before the biker has dropped his speed. Bike is harder, far, than a car, I imagine. And if you hit the brakes hard as soon as you see the cop (presumaby, as soon as he sees you, hopefully, before), you may have dropped to lawful by the time he manages to zero in on you. If you're in right wheel track may help too, cos the cop is probably set up mentally to aim for centre lane- and you ain't in centre lane. He has to react ("different position", move, refocus, reaim. You just have to react "Oh shit", and squeeze . So a swerve at the same time as braking may throw him off even more ? (Course, overdo the swerve whilst braking, and it may be you who gets thrown off!)

Karma

21st February 2006, 13:09

Hey... wonder if you could fit a bike out with that stealth technology stuff like they use on the B52 or whatever it's called?

That'd be pretty sweet eh?

marty

21st February 2006, 13:12

simjen is right, it's that magical but not understood 'discretion'...

limbimtimwim

21st February 2006, 13:12

Serious note, I wonder if it is genuinely difficulty in getting a fix before the biker has dropped his speed. Bike is harder, far, than a car, I imagine.Apparently they aim for the numberplate. Us lacking numberplates (On the front anyway..) perhaps they don't even try.

limbimtimwim

21st February 2006, 13:19

Hey... wonder if you could fit a bike out with that stealth technology stuff like they use on the B52 or whatever it's called? The B2, F117A and, less so F22, are 'stealthy' planes. There are probably more.

Matt black paint might help with the lasers.

These guys ( http://www.arc-tech.com/ ) among others make stuff you put on buildings near radar systems to cut down on random echos.

Perhaps bury some under the front fairings to defeat the radars.

Of course, you could just transmit radio noise (A jammer) at the right frequency(s) as your ride down the road, but that would be illegal.

Yes, I have thought about this before.

SimJen

21st February 2006, 13:30

They had no problem locking on to me at 121km/hr on my way to town a while back. Hidden under a tree in shadow the guy just stepped out and waved me down. Thought he was a farmer or something (i live in the wops).
Gave me a ticket despite me telling them where the person they were actually looking to get, lived. They'd had complaints of a blue xr6 speeding insanely.
Worst part was I got pulled over a week later and the cop who was a good guy (let me off) told me he would have never given me a ticket as bikes can go way faster than 120+... :)

Grahameeboy

21st February 2006, 13:34

Yeah I was not so lucky....came around the bend about 120.......saw this cop car with lights flashing already.....measured later and about 1,000m away. There were 2 cars between me and cop car.......reckon the cars were doing over 100.....I just slowed down......not slow on the SV'S engine braking......assumed he was flashing at these 2 cars in front....no movement.....went past at 70.....he moved.....for me......got done for 129.....he was a miserable git and was not bothered about my attempts to explain about the cars in front etc, I reckon he transferred the speed to me.........defending in Court a nightmare.....did not tell me about a hearing......gave up.......just the way it goes I guess......
I was told that laser picked bikes up at around 600m, cars at 800m and lorrries at 1,000m.......bit of a puzzle but who is going to call a cop a liar...

imdying

21st February 2006, 13:35

The matt black paint on stealth aircraft is full of tiny ball bearings, bbs made of what I can't remember, would be a quick google though. Sounds heavy though :(

The Stranger

21st February 2006, 13:38

So this was off of a laser then?

Grahameeboy

21st February 2006, 13:44

So this was off of a laser then?

To be honest, not up on what they have.......probably that Hawk thing on top I guess so may be different.......I still thought they shoot out a beam......

SimJen

21st February 2006, 13:46

The matt black paint on stealth aircraft is full of tiny ball bearings, bbs made of what I can't remember, would be a quick google though. Sounds heavy though :(

Stealths are now painted with some other type of paint thats easier to apply. Although they use a robotic sprayer to apply.
Its not just the paint though that gives it radar beating ability, the angles are critical in reflecting the radar to give a low signature.
Same techniques won't work that well for Laser, best way is to get a laser jammer (blinder?) off trademe. Couple it with a good V1 radar and become protected :)

spudchucka

21st February 2006, 13:48

Apparently they aim for the numberplate. Us lacking numberplates (On the front anyway..) perhaps they don't even try.
The number plate is usually mounted in the centre area of the vehicle, thats why they aim for them. With a bike you would just aim it at the headlight, or even the rider. I don't use laser very often but when I have I've never had a problem getting a lock on a bike.

WRT

21st February 2006, 14:08

I came through the link from the southern onto the northwestern one night a few years back, obeying the limit, when off in the distance under the Bond St over pass this little red dot appeared. Flicked off and on a couple of times until I got close enough to realise that it was a cop parked up in the shadows. He'd seen me well before I saw him, and kept on "pinging" me to monitor what speed I was doing. He must have been aiming right at my head if your right about the beams only the size of a tennis ball, I do remember wondering what damage that was doing to my eyesight. I aint blind yet, so maybe there's no adverse effects, but it did make me wonder.

limbimtimwim

21st February 2006, 15:17

The number plate is usually mounted in the centre area of the vehicle, thats why they aim for them. With a bike you would just aim it at the headlight, or even the rider. I was waiting for someone like you to pipe up. I will need remove the headlights and wear camo..

Lou Girardin

21st February 2006, 15:20

The IR component in a headlight beam can slow lock-on with laser, plus the smaller profile of a bike makes it harder to hold on target at long range.
Then there's luck.

bugjuice

21st February 2006, 15:22

:shit: Lou, offering advice to evade the law..??

Shape the front of the bike like a big long cone, then it'll have no flat surface to bounce off.. that's the key

SimJen

21st February 2006, 15:28

and the rider needs to grow big breasts so there's also no flat surface to bounce off ;)

Jackrat

21st February 2006, 15:33

enigma51

21st February 2006, 15:46

Shape the front of the bike like a big long cone, then it'll have no flat surface to bounce off.. that's the key

Painting the bike bright orange does not help though :corn:

bugjuice

21st February 2006, 15:48

it's called a challenge. and it doesn't work. still get tickets

Karma

21st February 2006, 15:50

and the rider needs to grow big breasts so there's also no flat surface to bounce off ;)

Well I've never got a ticket so far so it must work!

skidMark

21st February 2006, 16:01

or you just don't speed in the first place and keep it for the track?

Karma

21st February 2006, 16:03

Time and a place for everything...

scumdog

21st February 2006, 16:18

Apparently they aim for the numberplate. Us lacking numberplates (On the front anyway..) perhaps they don't even try.

Eh? I can't even see the number plate at the ranges I get them at (You ever tried to see a number plate at over 100 metres away and how small it looks?)

BTW C.B. has a Laser and I'm a Police, does that count??????i

scumdog

21st February 2006, 16:21

I was waiting for someone like you to pipe up. I will need remove the headlights and wear camo..

Camo? that is the best surface to aim for when using a Lazer!!!

(After the headlight)

madboy

21st February 2006, 17:01

Yeah, cops have been nice to me with the guns. Are all of those guns laser, or are some radar? I've never been sure. Either way, none of them have bothered to chase me (I think).

Last one I recall was funny, here I was at 140ish up an 80 zone on the way to work one morning (little goat track called Ngauranga Gorge if anyone knows it). Come round the corner, saw the cop pointing the gun thingey at me. Oh dear, hit the picks and started going down gears. I can't remember if I had the plate on. Down to about 80ish, 2nd gear, still looking at him as I crawl past in the outside lane. He puts down the gun and looks at me. I'm thinking I'm about to get to work 30 seconds quicker, but no, he just sits there. I put that one down to discretion.

N4CR

21st February 2006, 17:35

These are 'laser' guns with a single infra red emitter. iR frequency LASER (not radar..) has some rather weird properties, for example an iR beam laser can be deflected to not cause eye damage (by burning of the retina) with a simple perspex shield, where as with visible lasers (take 532nm greenies for an example) you need a filter. iR lasers can also be killed with a filter.

The iR laser, depending on collimation (how straight parallel the beam is, eg not cone shaped) will determine how far away the laser can strike before it becomes too long to get a lock, on a very circular surface the return would be quite weak due to a wide reflection, so a busa might be hard to lock onto etc. That b/s about bikes being easiest to pick up that the police told you is not true, think of it as shooting a gun... bigger the target the easier it is to find a reflection.

One thing I can tell you - heat waves on the hot roads in summer (over a long distance) might have an effect depending on how iR wavelength laser passes through it, i'll get scumdog etc to answer that one.

I don't know enough about iR LASERs to tell you what you need to beat it apart from a jammer, but I will endeavour to find out.

scumdog

21st February 2006, 17:43

One thing I can tell you - heat waves on the hot roads in summer (over a long distance) might have an effect depending on how iR wavelength laser passes through it, i'll get scumdog etc to answer that one.

I don't know enough about iR LASERs to tell you what you need to beat it apart from a jammer, but I will endeavour to find out.

I always try and get a high spot on a hot day, that way there's no worries about heat waves etc.

Most cars I get a good reading at about 400 metres, bikes it's down to 300 or maybe a little less - doesn't matter 'cos they still never spot me anyway.

madboy

21st February 2006, 19:19

doesn't matter 'cos they still never spot me anyway.Dirty old men hiding in bushes... I don't know... what is this world coming to?!

MattRSK

21st February 2006, 19:25

Must of met his Quota.

Morepower

21st February 2006, 19:45

Has anyone tried this stuff??

http://www.laserveil.com/

GIXser

21st February 2006, 20:12

GIXser

21st February 2006, 20:17

I was waiting for someone like you to pipe up. I will need remove the headlights and wear camo..

None of this is neccesary of you have a speedy bike, a cop car will do
"What" tops 200 K ,,,,,,take off is slow, and to get up to speed is even slower, ,,,by then you should have lost em, if not "get a new bike":2guns:

Sparkz

21st February 2006, 20:17

The reason they aim at the number plate is that it is a retro-reflector (it relects light back to it's source instead of at an angle equal to the incident light from the normal).

The lasers are 905nm infrared and send out very short (5ns) pulses at 1kHz. The beam diverges (spreads out) as it gets further away and is a vertical stripe (a pulsed laser diode produces a stripe, not a dot) about 1m wide at 1km.

The infrared light will relect off any surface (some more than others), but most surfaces scatter the light and it is very weak by the time it gets back to the laser gun. Retro-reflectors (like the white or red rectangles fitted to the front and back of bikes, and number plates) direct all the energy they receive right back at the source.

Trick is to get rid of any retro-reflectors from the front of the bike. Infrared filter film over the headlight may help too.

Laser jammers use laser diodes pointing out the front of the bike (hopefully right at the laser gun) and send out a stream of pulses at a much higher rate than the 1kHz the police lidar uses. This is interpreted as noise.

GIXser

21st February 2006, 20:24

I always try and get a high spot on a hot day, that way there's no worries about heat waves etc.

Most cars I get a good reading at about 400 metres, bikes it's down to 300 or maybe a little less - doesn't matter 'cos they still never spot me anyway.
Saying that your a cop is one thing, however "You actually get a kick out of your "little" laser gun,,:tugger: :tugger: :tugger: :tugger: :tugger: :tugger:

scumdog

21st February 2006, 20:30

Saying that your a cop is one thing, however "You actually get a kick out of your "little" laser gun,,:tugger: :tugger: :tugger: :tugger: :tugger: :tugger:

'Ah, the first fish for the creel.......................;)'
The true sign of a new member is a post like the above. heh heh heh!!!

Of course you could always try my and see how I "handle" my "little" laser:laugh: :killingme :rofl:

cowpoos

21st February 2006, 20:32

Lol that stuff cracks me up.

Radar Jammers dont work

how much do you wanna bet dude....

Your bosses been talkin crap AGAIN

N4CR

21st February 2006, 20:32

Hey dynamytus, basic physics state that if you can transmit out an inverse wave at the frequency of either radar/laser source (depending on what is shooting) then the waves will cancel out to a flat line (eg no return) if you take doppler into affect. It is tricky but it is do-able. :beer: Would also seem a bit dodgy and warrant for a roadside check for 'emitters'
I seem to remember seeing full on laser jamming setups... the 'blinder' was it?

Or else you can transmit a false wave reflection at a greater power back (than the emitter would reflect at) and mimic the return - one that says you are travelling at less speed than registered on the gun, as it uses the doppler effect to 'guestimate' speed. I can remember reading that some trees and other inanimate objects were tracked at 30-60kmh...

edit: and what sparkz said about retro-reflectors... forgot to post about that the first time.

scumdog

21st February 2006, 20:34

how much do you wanna bet dude....

Your bosses been talkin crap AGAIN

I ain't heard a peep from his bosses, when did you?????

Hammer

21st February 2006, 20:52

Ixion

21st February 2006, 21:23

Laser jammers, me thinks, not radar jammers. Two different beasts. Don't think you can jam radar unless you've got something like an Aegis cruiser to work with. Laser's (maybe) a different matter.

EDIT- Quote, from the site you linked

Active Laser Jammers

Active Laser Jammers

Laser is a beam of light in the infrared spectrum. When officers use a laser gun, they target individual cars that they want to obtain a speed on, and active the gun by pulling the trigger.

The beam of light that strikes your car is very narrow and reading the officer gets is instant.

There are several active laser jammers that are very effective in jamming police laser, they are:

BLINDER X-TREME
blinder xtreme

The Blinder M-20 and M-40 are perhaps the most effective active laser jammer made today. In testing by SML at the 2004 radar detector shoot out, they jammed 100% of all the police laser guns.

N4CR

21st February 2006, 22:50

Zapf

21st February 2006, 22:53

Hey... wonder if you could fit a bike out with that stealth technology stuff like they use on the B52 or whatever it's called?

That'd be pretty sweet eh?

head light is a big reflector no?

Zapf

21st February 2006, 22:56

There were 2 cars between me and cop car.......reckon the cars were doing over 100.....I just slowed down......not slow on the SV'S engine braking

There is no way he can get your speed using a laser gun when there is clearly 2 cars in the line of sight. right?

Pixie

21st February 2006, 22:57

Laser jammers use laser diodes pointing out the front of the bike (hopefully right at the laser gun) and send out a stream of pulses at a much higher rate than the 1kHz the police lidar uses. This is interpreted as noise.
Not necessarily laser diodes,
The Blinder I use has 9 IR LEDs pulsed at 4 Mhz And is proven effective,
(tested against a privately owned laser gun)

scumdog

21st February 2006, 23:02

There is no way he can get your speed using a laser gun when there is clearly 2 cars in the line of sight. right?

Hmm, depends on the angle but with the sights on the laser I wouldn't put money on them NOT being able to pick you out, no sir!!

Zapf

21st February 2006, 23:09

The infrared light will relect off any surface (some more than others), but most surfaces scatter the light and it is very weak by the time it gets back to the laser gun. Retro-reflectors (like the white or red rectangles fitted to the front and back of bikes, and number plates) direct all the energy they receive right back at the source.

So Matt black paint with high rubber content.... who wants a spongy matt black bike? :scratch:

spudchucka

22nd February 2006, 07:46

Saying that your a cop is one thing, however "You actually get a kick out of your "little" laser gun,,:tugger: :tugger: :tugger: :tugger: :tugger: :tugger:
Only when its aimed at special people, like you.

Grahameeboy

22nd February 2006, 07:50

There is no way he can get your speed using a laser gun when there is clearly 2 cars in the line of sight. right?

Yep..........................

Grahameeboy

22nd February 2006, 07:57

Hmm, depends on the angle but with the sights on the laser I wouldn't put money on them NOT being able to pick you out, no sir!!

and the cop car was so far away that all I saw was the flashing lights when I came around the bend.......assume it was the 'Hawk' on the car....I dunno whether he could have got me and I have given up........don't tell me about hearing, sent re-hearing form in December, have not heard back and I lose 35 points in May and if worst comes to worse I will have no probs getting a day licence so not worth the stress anymore......

sAsLEX

22nd February 2006, 08:05

Aegis cruiser (is that that british one??) would probably do it lol :blip:

Never heard of a laser jammer, are they out there?

Would be Mighty Old american that one, and a nice piece of kit.

Quite common, and probally not that hard to make.

I would also hazard a guess to say that Jammin a radar signal from the 5-0 would not be hard either as they wouldn't be freq hopping or nothing fancy, only issue is it is illegal to transmit at the powers you need.

Another Q, do the police have a license to transmit their radars?

The Stranger

22nd February 2006, 08:42

How do you know it was laser?

Actually, good point. I must admit, I had thought that all the hand held units with the little like gun sight on the top were lasers as I had had a play with one once at a demo the cops did at MOTAT. But of course assumption is the mother of all f&%k ups, so I may be talking crap.

Did you have a radar detector that went off. Either way you that was lucky - usually with laser you get less warning time than Ka so when it goes you have to hit the anchors hard. They will pick up a bike.

No, no radar detector, well not an electronic one anyway. Mine is tucked safely in my helmet.

Sounds like you lucked out.

Well yeah, but the thing is this. I have been so bloody lucky lately that I can't believe it. So I think there is more to it than just luck and discretion. Though if I am wrong about the discretion a big big thank you to all the Police out there. You guys really rock.

I ALWAYS focus on the vanishing point when I ride and observe the the area in front of me with peripheral vision.
I just wonder if that contributes to the luck.

Of course you could always take scummy's advice and simply not speed. But it's easier for him, he has a Harley.

Lou Girardin

22nd February 2006, 09:36

sAsLEX

22nd February 2006, 10:54

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

22nd February 2006, 11:02

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

22nd February 2006, 11:20

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

Lou Girardin

22nd February 2006, 11:49

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

22nd February 2006, 11:59

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 :devil2:

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

22nd February 2006, 12:24

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

22nd February 2006, 12:25

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

22nd February 2006, 12:38

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

22nd February 2006, 12:42

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

22nd February 2006, 12:45

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

22nd February 2006, 12:49

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

22nd February 2006, 13:21

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

22nd February 2006, 14:12

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.:killingme

Pixie

22nd February 2006, 14:45

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

22nd February 2006, 14:58

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.

sAsLEX

22nd February 2006, 15:29

The power required is minimal.

Remember;whatever the power output of the cops' devices emitter, the echo is many orders of magnetude less..

ah yes a very good point grasshopper.

Ok now where does one find what freqs Ka band and k band sit on??

madboy

22nd February 2006, 18:44

It doesn't matter - no number plate = stop for unspecified time + a liklihood of a ticket..True, hence why I try to avoid being stopped. It's now 2nd nature for me to think of an escape route every time I see a cop, whether the plate is on or not, whether I'm speeding or not. Hence why I do my best not to wedge myself in. But, hey, one day it'll happen.

I recall a chase that I couldn't possibly have been involved in where all the cop had to do to catch the bike was stay parked exactly where they were. The bike HAD to slow right down. No two ways about it - not enough room to get through at 200k+. And they would have been able to read the plate - which we know means case closed (assuming legit plate, registered to legit address etc). Hence why I don't like the idea of plates. But instead the cop decided to try and block the bike, that meant moving, the by product of which meant an escape route opened up. Bike took it. End of pursuit, nobody saw the plate.

spudchucka

22nd February 2006, 18:53

If there isn't you can just make one up.:killingme
No need to share your old tactics on here Lou, stick to flogging helmets and crap.

GIXser

22nd February 2006, 19:16

'Ah, the first fish for the creel.......................;)'
The true sign of a new member is a post like the above. heh heh heh!!!

Of course you could always try my and see how I "handle" my "little" laser:laugh: :killingme :rofl:

whatever: You filthy PIG !!!!!

ZorsT

22nd February 2006, 19:21

ah yes a very good point grasshopper.

Ok now where does one find what freqs Ka band and k band sit on??
I did some research on this quite a while ago.

What I found was that the newer radar systems actually DO do frequency hopping, five different frequencies IIRC.

I googled it ages ago, but decided that a radar jammer would be too hard/costly to design/build with frequency hopping in the picture.

edit : i just had a little looksie and i can't find the pages i read that on, so i could be wrong

GIXser

22nd February 2006, 19:33

Getting closer......

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

Fuck off """PLOD""" go give someone a ticket!!!! (MR PLOD ,:HELLO HELLO, what was the reason why you were speading sir"??? ps, did i tell you i got picked on at school,,

Mrs Busa Pete

22nd February 2006, 19:50

No he felt sorry for you because you where riding a bright yellow naked honda and that was enough for any self respecting bike rider to deal with

scumdog

22nd February 2006, 20:01

QUOTE=GIXser]Fuck off """PLOD""" go give someone a ticket!!!! (MR PLOD ,:HELLO HELLO, what was the reason why you were speading sir"??? ps, did i tell you i got picked on at school,,[/QUOTE]

Because of poor spelling????:scratch:

gixermike

23rd February 2006, 04:56

There seem to be several court cases in the uk at the moment regarding innacuracy of Lasers (LT20.01 units or something like that) that have never been tested, proved accurate, or approved for use on bikes. the problem being that of getting an accurate echo being harder than just getting an echo at all. bounces off wheels, angular problems with fairings etc. Same deal with static Scameras reading much higher speeds than the twin photos indicate.
not much use for NZ.....unless you are after info to challenge a case that is...

k14

23rd February 2006, 07:33

ah yes a very good point grasshopper.

Ok now where does one find what freqs Ka band and k band sit on??
my radar has a "tech" mode where it displays the frequency detected, could be useful for finding out the frequency used.

Lou Girardin

23rd February 2006, 07:44

I did some research on this quite a while ago.

What I found was that the newer radar systems actually DO do frequency hopping, five different frequencies IIRC.

There are several different models of Stalker radar, I don't think our cops use the freq hopping version. They have the dual lane model.
Ka band is fairly wide, more than K or X, that makes effective jammers difficult to design. There was a K band jammer available in the States, till the FCC forced it off the market.

sAsLEX

23rd February 2006, 08:53

my radar has a "tech" mode where it displays the frequency detected, could be useful for finding out the frequency used.

yeah I remebered that but what are they? Should put it in your van and do some investigating on your way south, mind you they probally wont "illuminate" you as would be going rather slow.