Wanting to test home built lidar jammer

[Lucky225]

EPIC WIN!!!!!!!!!!!!!!!! MUHAHAHHAHAHA GOOD RESULTS FOR $40 in parts!

[category4]

Last pt at 28' was CM I believe.

[Solion]

Last pt at 28' was CM I believe.

And thanks again for being willing to come out in the wet to meet me, I am not so sure I would want to meet some big long haired hippy like dude with a soldering iron and a crazed look in his eye.

Still want to test the blinder again once I change the CC unit for higher a current test . the fact that it did Jam give me hope others will be able to self upgrade their (out of warranty hardware)

As for the home made unit, going to pop it up to 2 MHZ and add the other leds. Its gonna be a fun run at the end of the month.

I am going to post on another thread and see if anyone else has dead or broken heads and see what can be made out of them. I still want to see if I can increase the detection of the blinder units and others

[category4]

Anytime my schedule allows. looks like I'll be out of town for the next few weeks, but that's always subject to last minutes changes!!

[jimbonzzz]

The trafipatrol gun would be tough, But its in Europe only

The Traffipatrol is probably the easiest gun to jam... WITH jam codes. Your 2 KHz would have done it.

I have a feeling you are talking about theTraffipatrol XR?

[Solion]

Yeah , thats the one.

I am just so ramped up now to throw anything and everything at it. but first the marker lamps and we will see where we are .. hopefully on a day it isn't cold or nast or both.

[STiMULi]

Still want to test the blinder again once I change the CC unit for higher a current test . the fact that it did Jam give me hope others will be able to self upgrade their (out of warranty hardware)

As for the home made unit, going to pop it up to 2 MHZ and add the other leds. Its gonna be a fun run at the end of the month.

I am going to post on another thread and see if anyone else has dead or broken heads and see what can be made out of them. I still want to see if I can increase the detection of the blinder units and others

YEEEEHAAAAA May I say!

Fantastic!

I am an M40 carrier. I need to infect my Blinders with a course of good old fashioned ingenuity.

[Solion]

Still want to test the blinder again once I change the CC unit for higher a current test . the fact that it did Jam give me hope others will be able to self upgrade their (out of warranty hardware)

As for the home made unit, going to pop it up to 2 MHZ and add the other leds. Its gonna be a fun run at the end of the month.

I am going to post on another thread and see if anyone else has dead or broken heads and see what can be made out of them. I still want to see if I can increase the detection of the blinder units and others

YEEEEHAAAAA May I say!

Fantastic!

I am an M40 carrier. I need to infect my Blinders with a course of good old fashioned ingenuity.

I got a few private messages on the power output of the leds at 90 KHZ
I was curious too so I hooked her back up

So here is a quick video of 90 KHZ in action , keep in mind this is is only 7.2 watts not the 75 watts the LI puts out ... However at 90 khz, you can now witness the full power of this fully function battle sta......ER ....lidar jammer

[ame=http://www.youtube.com/watch?v=aVIyfYu_u3E]YouTube - REC-00011.avi[/ame]

[speed-dreams]

what camera you're using?

[jimbonzzz]

keep in mind this is is only 7.2 watts not the 75 watts the LI puts out ...

I'll assume that's peak power, because if it was average power you probably would not be reading this. What is the average power? I won't pretend to know all of the ins and outs of optical power: I don't. But here's my take:

The diode jammers that use the 75W SPL_PL90 diodes are transmitting a very low percentage of the time. Consider a PLIII: at 200pps it is transmitting one pulse every 5000000 nanoseconds. Say the jammer produces one jamming pulse for each of the gun's pulses. The jammer is transmitting only 0.0005% of the time. Although the peak power is 75 Watts, average power in this case is 375 Microwatts. Typical TV remotes are in the order of 1000 microwatts (if we are to believe LTI). So, even if a jammer doesn't have that great of timing and it takes the jammer multiple pulses to jam each of the laser gun's pulses, radiated power is still very low. These jammers are typically Class I or Class IM.

The old LE-10 patent suggested that they transmitted 7W peak power, and also suggested 2 Mhz (though I was told 4 MHz personally by a Lidatek engineer). At 2 MHz it is transmitting one pulse every 500ns. If each pulse is 25ns in duration, it would be transmitting 5% of the time. Average power would be 350000 microwatts, or 350 milliwatts. These were classified as Class III lasers.

You have 7.2 watts of power. At 90 Khz, that's one pulse every 11111 nanoseconds. If each pulse is 25ns in duration (with LED's it's most likely much longer!) you are transmitting .225% of the time. Average power would be around 16200 microwatts/16.2 milliwatts, at any rate several times that of the diode jammers. So, you're most likely already in the Class III zone. Please be careful!

Jim