A K frequencied motion sensor could have disabled your gun. As I'm looking more into it, it seems Ka is specifically more geared toward LE radar guns. That write up I linked earlier in the thread didn't didn't have a motion sensor having a Ka freq. You could take the radar gun and aim at the sensor at a Wal-Mart. I believe they use that freq in their sensors. It's possible. The sensors were effective against radar guns that used X and K in the 90's. Trust me, they wouldn't put that book if it weren't legit.

But if you can link me some facts disproving me, please send away.

Seems like a good topic to write to Mythbusters about.

 

Well if people didn't know about this in the first place, I can understand the negative comments coming back because they didn't know about it.

But no one has proven me wrong yet to change the way I feel about these sensors. So if you can link me something, that would be appreciated.

Plus I mentioned before that there is a "Street Encounter" thread where people write about illegal street racing. Why don't you go on that forum and tell them thats illegal.

 

Whatever. If you knew so much about it why did you even ask? I give you real world info and you still ignore it. I'm done here.

 

Your credibility was already gone when you said that sensors don't project anything in page 1 of this thread..........

 

Last time I checked, read the fine print of the law, but any attempt to defeat police "radar" is a pretty heavy offense. Not only that being a waste of time, most of the cops now days are switching, more and more, to lidar because its so damn hard to detect and once you do pick it up, its too late. Lazer has virtually no scatter and this is why a detector is usually useless. Lazer jammers are amazing and very effective... why do you think most kangaroo states are making them illegal! Pair a good lazer jammer with a good radar detector and thats the best condom you can wear against the whores in uniform!

 

True, techology is constantly evolving. If intenet forums were huge 15 years ago, the sensor trick probably could have been more known as most radar guns used the X, K freq's.

With Lidar and Laser, motion sensors would have no effect since they both don't use radio freq's.

 

I said I thought we where talking about PIR, not radar. I then retracted my statement.

Door openers usually run at 24.143, 24.144, and 24.120. Frequency. I don't know how many times I have to say that word until you understand it. Why doesn't you radio get jammed by every othe radio station? Why doesn't on opener jam the other? Frequency. Openers are very stable. Two running next to each othe only need to be shifted .001 not to interfere.

You say a jammer would have jammed my gun but it never did. I used to shoot radar directly in front of a automatic door. Frequency.

 

Yeah it is frequency, but motion sensors can be on that same freq in the X, and K band. Not all sensors are the same as they project in one or the other. If the sensor was positioned a certain way to project their pings in front of the car it would have an impact. Thats why you say they don't pick up door jams, because they are facing in another direction.

I doubt you shot a radar gun in front of an automatic door.

I'm still requesting links from you please....

 

Yes. Directly parked in front of the door at the PX. It's not my responsibility to spoon feed you information. What I speak is all true. I'm not saying you can't jam K, I'm saying you can't jam it with a door opener. You have to instantly match the received frequency, which the opener has no provisions for, and then send back that exact frequency, which the opener can't do either. In theory yes you can do it, but for practical purposes, no you can't.

My background:
US ARMY Radio Transmitter Operator
-Short wave V pole antennas: I can aim at the atmosphere and bounce off of it over the horizon to a target area.
-Frequency hop VHF radio
-Multi-station repeaters
-Transmitter triangulation

Sprint PCS:
-installed, aimed, and calibrated 150+ metrocell DE tower systems
-1.2ghz transceivers
-Microwave relays
-GPS reception with time offset for the speed of theta
-Wave propagation through both cables and air
-High frequency connectorization of RF conduits.

RF and electronics are not only my job, they're my passion. I'm trying to give you information from my experience and you keep getting offended for some reason.

 

[QUOTE=SgtB,Aug 6 2009, 01:06 PM] Yes. Directly parked in front of the door at the PX. It's not my responsibility to spoon feed you information. What I speak is all true. I'm not saying you can't jam K, I'm saying you can't jam it with a door opener. You have to instantly match the received frequency, which the opener has no provisions for, and then send back that exact frequency, which the opener can't do either. In theory yes you can do it, but for practical purposes, no you can't.

My background:
US ARMY Radio Transmitter Operator