testing of a laser jammer

[teabagger]

if i was to buy a laser jammer, is there a way to test the operation.

you could have a damaged/ ineffective system if it has not been tested.

apart from a friendly policemans laser gun, is there a laser emitter/ laser pen/ infra red gadget on the market which could test these jammers?

[KenP]

The device comes with heat sensitive plastic strip which you attach to the transmitter, You then fire a normal camera flash from the stipulated distance.
A camera flash is a broadspectrum device which will include radiation from the necessary range. The test strip will change colour if the device was properly triggered. HTH

[Puddenchucker]

teabagger said:

if i was to buy a laser jammer, is there a way to test the operation.

Drive past a Camera van at about 15mph above the limit.

If you don't get a NIP thtough the post in the following 2 weeks it's probably working, if you do get a NIP, ask for your money back on the jammer.

HTH


Alternatively.... http://www.ukspeedtraps.co.uk/lasertest.htm

[fastfreddy]

Most camcorders are sensitive to infra red. If you want to make sure the beam coming from the jammer is lined up correctly, park in front of a light coloured wall or garage door at night. Use a flash gun as stated above to trigger the jammer and you'll be able to see the beam pattern on the wall through the viewfinder or screen of the camcorder.
HTH

[bryan35]

sold my laser gun about 8 months ago. You could have borrowed it otherwise.

[cptsideways]

Try a selection of TV zappers, ususally you'll find one that just about works close up. To see if your gadget is doing anything in return most video cameras will see any IR output from the device.

You are aware such devices are no longer legal & can land you in the pooh these days. Assuming you live in the UK that is.

[catso]

teabagger said:

if i was to buy a laser jammer, is there a way to test the operation.

Get in touch with Kmph http://www.kmph.co.uk/index.asp they can fix you up with what you need - supply/test etc.

BTW I have no connection with them other than experiencing excellent service.

[Shootingbiker]

I thought laszer jammers were illegal?

But that automatically operated lazer operated garage door openers arn't??

[teabagger]

if the camera flash and remote controls did not trigger the jammer, would that indicate a faulty jammer?

[teabagger]

bryan35 said:

sold my laser gun about 8 months ago. You could have borrowed it otherwise.

where can a laser gun be bought from and at what price?

[bryan35]

they come up now and again. I bought mine from mr sideways on ph. About 4 or 5 hundred quid. Fun to own but got bored with it and sold on. They don't show up on cameras by the way, cam corders, camera phones, nothing. Pulse far too short. So a detector will prob trig from a telly remote. As for jamming, a friend of mine had me try to get a speed reading with his jammer on. I tracked him all the way up the road. Didn't work. Think about it, a collumated laser firing high energy pulses off a very reflective surface, and you're trying to mask it with a few led's. And do it conspicuously! And avoid the sh ! Te load of bother you'll be in getting caught with it.

[cptsideways]

SLD 920's & LE's all show on video most cameras from memory when pointing at the device. You can't see the laser from the gun though, pulse width is too short.


There was a bunch of fake SLD's floating around ebay a couple of years back, easy to tell if you have one as if you follow the instructions the buzzer is always on

I've since sold all the units I had for testing on race circuits, still got a mini laser gun somewhere, have'nt used it for at least a year, forgotten where I've even put it lol.

[fastfreddy]

bryan35 said:

they come up now and again. I bought mine from mr sideways on ph. About 4 or 5 hundred quid. Fun to own but got bored with it and sold on. They don't show up on cameras by the way, cam corders, camera phones, nothing. Pulse far too short. So a detector will prob trig from a telly remote. As for jamming, a friend of mine had me try to get a speed reading with his jammer on. I tracked him all the way up the road. Didn't work. Think about it, a collumated laser firing high energy pulses off a very reflective surface, and you're trying to mask it with a few led's. And do it conspicuously! And avoid the sh ! Te load of bother you'll be in getting caught with it.

The good jammers work well, the bad ones don't work at all.

Good jammers have a laser diode (or several) not LEDs. When the jammer detects the incoming laser light, it fires the laser diode for about 5 seconds. Enough time for you to slow down. Any longer and the laser diode overheats.

Yes, there have been cases now where people have been prosecuted for 'perverting the course of justice' by using one. AFAIK they are still not illegal to buy or possess. You possibly will get a knock on the door if your jammmer gives a speed gun operator a certain error code. You may then be prosecuted using the PCJ law even if you weren't speeding.

It's probably better these days to keep your speed down and your eyes open rather than rely on a jammer to get you out of trouble because it could get you in deeper.

[teabagger]

cptsideways said:

SLD 920's & LE's all show on video most cameras from memory when pointing at the device. You can't see the laser from the gun though, pulse width is too short.


There was a bunch of fake SLD's floating around ebay a couple of years back, easy to tell if you have one as if you follow the instructions the buzzer is always on

I've since sold all the units I had for testing on race circuits, still got a mini laser gun somewhere, have'nt used it for at least a year, forgotten where I've even put it lol.

i could be intrested in the laser gun if its up for sale