1. ## Is there such thing as radar or laser spoofing?

What I mean by radar or laser spoofing is that instead of jamming radar or laser, the device would make the officer get a false reading of a legal speed. Is such technology possible? If so, what kind of devices would do it and how do they work? If not, explain why it's not possible.

2. ## Re: Is there such thing as radar or laser spoofing?

I couldn't tell you if its possible or not, but I can tell you I've never heard of anything like that.

3. ## Re: Is there such thing as radar or laser spoofing?

Idk if it exists but you would have to have some way to accelerate the beams being bounced off your vehicle. It would be pretty funny to have a system that just gave an officer readings of like 180 mph.

4. ## Re: Is there such thing as radar or laser spoofing?

actually just thought about it, you would need the beams to give an error of reading a speed lower then what you where going, because if you made the reading higher and the radar gun is in calibration and functioning properly, couldn't he give you a ticket for the speed you got you at?

5. ## Re: Is there such thing as radar or laser spoofing?

Radar spoofing. I did a simiular thing when I first opened my STi-R PLUS.

6. ## Re: Is there such thing as radar or laser spoofing?

Originally Posted by barryswanson
Radar spoofing. I did a simiular thing when I first opened my STi-R PLUS.
lol. but to answer the OP's question, yes. they did exist a very long time ago, and there are few, if any that are actually still on the roads are working. besides the fact that jamming radar is a federal offense and possible jail time, it's certainly not worth it at all.

7. ## Re: Is there such thing as radar or laser spoofing?

Yes radar spoofing is definitively possible. It is a wave. Using basic Doppler effect equations we can get the velocity.

where

v is the velocity of waves in the medium
vr is the velocity of the receiver relative to the medium; positive if the receiver is moving towards the source.
vs is the velocity of the source relative to the medium; positive if the source is moving away from the receiver.

If you know the output source, and the car (receiver) bouncing off of it outputs the correct frequency to "spoof" it, it is possible. The signs of the equation are changed with respect to what is moving towards or away from what.

The output frequency is known, let's say 34.7 GHz. The medium in which radar travels is air, which is a constant. If it is stationary radar vs = 0; if moving it is the velocity of the LEO's RADAR unit. Say you want to be doing the PSL of 100 m/s, find the f, the frequency in which you will need to return to the unit. :-)

That's the theory behind it folks.

8. ## Re: Is there such thing as radar or laser spoofing?

What would the officer hear in his doppler tone? Would it sound like a car traveling at the speed limit, or would it sound somehow odd?

9. ## Re: Is there such thing as radar or laser spoofing?

Originally Posted by atticuss187
Originally Posted by barryswanson
Radar spoofing. I did a simiular thing when I first opened my STi-R PLUS.
lol. but to answer the OP's question, yes. they did exist a very long time ago, and there are few, if any that are actually still on the roads are working. besides the fact that jamming radar is a federal offense and possible jail time, it's certainly not worth it at all.

But it's worth RR 50k

10. ## Re: Is there such thing as radar or laser spoofing?

So let me get this strait, it works in theory but in order to do that you would have to jam the cops radar first before sending out the spoofed frequency. Obviously you can't get that since jamming radars for any reason is illegal.

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