Quote: Originally Posted by icecore
Physical presence, I don't really think so. It wasn't downtown, in this area there's basically a college and a couple of gated communities, not that many people driving by.
I crossed them TWICE. And my radar detector usually works great.
Obeying the speed limit, well..i have done it after my last ticket for a while, I know what it feels like...NO, definitively don't wanna do it again.
Don't get me wrong, I am not a crazy driver, I just don't wanna pay $180 dollar for driving 10-15 above the speed limit on an empty road.
Technically speaking, I doubt it is possible.
Speed detection has always been based on doppler shift, and timing from signals that were sent out from the gun. This means that the signals sent out can be detected. Now, if they have developed something that does not need to send out signal, then it would be undetectable, and certainly it could one day be done, I am just not sure how. Something has to be sent back to the gun to determine the speed. What they would use, that would provide accurate speed measurement with out timing/doppler shift is very UNLIKELY.
However, it is possible that they are using a new technology or frequency that your particular detector doesn't pick up, or perhaps, they have introduced some sort of new technology that send such a minute/short duration signal that the detector does not have enough sensitivity or detection ability for that length of signal. in that case, it is probably just a matter of time before someone comes up with something to detect it.
Michael