Phazer II Radar Jammer - Anyone have this? Does it work?
09-17-2002, 07:18 AM
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Phazer II Radar Jammer - Anyone have this? Does it work?
My first thought is that this is a joke. Any comments are welcomed.<ul><li><a href="http://www.technoscout.com/general/product/product.asp?product=185&Prod_Name=Phazer_II_Ra dar_Jammer&site=85870">http://www.technoscout.com/general/product/product.asp?product=185&Prod_Name=Phazer_II_Ra dar_Jammer&site=
09-17-2002, 07:30 AM
#2
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NO Radar Jammer works...
For any jammer to work it would have to <b>broadcast</b> a strong radar signal, violating several FCC regulations.
The first word of F is "Federal," and a speeding ticket beats a felony any day.
I've never seen an unbiased (as in done by someone other than the manufacturer) prove that one works, so draw your own conclusions...
The first word of F is "Federal," and a speeding ticket beats a felony any day.
I've never seen an unbiased (as in done by someone other than the manufacturer) prove that one works, so draw your own conclusions...
09-17-2002, 08:16 AM
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A physics lesson
I don't buy it. Radar speed measurements are done using the doppler effect. Basically, the radar gun emits a set frequency. The radar bounces off your car and returns to the gun at a different frequency. This new frequency is a direct function of your speed AND the original frequency. The gun measures the new frequency and calculates your speed.
"The Phazer sends one signal that tells the radar the car is going 15 m.p.h. and another signal that the car is going 312 m.p.h."
Obviously, this is only possible if the the Phazer knows the original frequency of the radar so it can modify to emulate the aforementioned speeds, which is only possible if:
1. It can measure the incoming frequency
2. ALL police radar guns on the country use the same published frequency.
Since the article does not mention the capability to do #1, then it must be #2. This is the part I can not verify. Can someone else deny or confirm statement #2?
TTommyB, PhD
"The Phazer sends one signal that tells the radar the car is going 15 m.p.h. and another signal that the car is going 312 m.p.h."
Obviously, this is only possible if the the Phazer knows the original frequency of the radar so it can modify to emulate the aforementioned speeds, which is only possible if:
1. It can measure the incoming frequency
2. ALL police radar guns on the country use the same published frequency.
Since the article does not mention the capability to do #1, then it must be #2. This is the part I can not verify. Can someone else deny or confirm statement #2?
TTommyB, PhD
09-17-2002, 08:31 AM
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A friend was a radar expert in the Navy. Ran the jammers himself, I would guess.
They could accidentally cook birds in flight with the high powered frequencies the jammers put out. I don't think a radar detector sized thingy running on 12V can do that! 
09-17-2002, 08:36 AM
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At this point there is X, K, and Ka band radars...
with some other experimental bands out there. X and K are being phased out in favor of the newer digital Ka bands which operate on a varied freq. and can detect your speed in less than a second in the deadly instant on mode.
So unless it first detects the incoming signal, identifies it, then sends out the proper signal... Uh-oh already gotcha!
So unless it first detects the incoming signal, identifies it, then sends out the proper signal... Uh-oh already gotcha!
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09-17-2002, 10:37 AM
#9
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Bottom line - theoretically possible but too expensive to implement
As an old radar engineer myself, yes the military can jam almost any radar if they spend enough money. So police radars can be jammed too. The problem is all the frequencies you have to cover to make it useful throughout the USA. SparTTan's reference was excellent. Save your money.