Contour Enthusiasts Group Archives Forums Modifications General Mods Radar Detector

Well I guess that's why detectors don't ignore frequencies (though I can using the 8500 and just looking at the display). 24.150 for K-band is LEGALLY the only K-band radar cops can use, so if another one comes out it wouldn't be hard to find out. Also if detector companies wanted to program the ability to ignore other frequencies they could just be updated (well the 8500 and some Bels can).

Well my detector does alert on all REAL signals it receives this INCLUDES doors. I guess the reason it is rated for less FALSE signals is because it doesn't alert of signals that aren't even truly present or alert as much on other people's cheap detectors. I notice you have a V1, well it isn't the BEST for having less falses, it definitely isn't the worse for falsing, so I guess you don't have the best detector you can have. Remember, more false alerts equal a better detector.

Anyways you have a very good detector (although overpriced), that doesn't false as much as cheaper detectors and I guess that means not showing an alert every time it receives any/every radar signal. But if you're happy thinking it does then so be it.

It's clear you either don't have any understanding of technology and the word FALSE or you just don't care to change your thinking.

As rk hinted on: the only possible way (at this moment) would be a digital, cataloged database of frequencies, cross referenced to their relative signal strength, or inherent attributes (certain radar emmiters, such as those using the mls-4890-U klystron (and some using magnatrons, as well) leave a signal "scar", and that would leave the ability to determine exactly what emitted the signal.

Processes such as current ramping, or sine signal analysis could properly determine the originating system. and then the altitude, distance, speed, frequency, and course. However, with those capabilities, you are no longer looking at a dash mounted radar detector, you are looking at a full-fledged radar system. (need further info, check out some of the USN Air/Surface Search radar models, such as the SPS-49, SPS-55, SPS-67, SPS-73, or even the older Italian RTN10X.) You'll see, in any of those, there is not only a large amount of power required, there is also a substantially larger amount of storage room, compared to your windshield, and a MUCH heftier price tag (x,xxx,xxx.00)

So, RK.. the ability to determine the originator, SOLELY on the signal frequency (a door at 24.150 or a cop at 24.150)could be determined, because the square would have certain scar marks (peaks, pivots, ramps, slides, etc, on the pulse, which would be caused by the radar oven, or crystal itself. (now... how noticeable is a cop car's scar, compared to almost a million watts of output on the surface search, I wouldn't begin to think it would be.. but it can be done.. lol)

And Kremit,
The ability to do so, even though it DOES exist, is not feasible, as I stated before. The "technology" that the radar makers are using is not "new"... it isn't secret, and it isn't there.. The bottom line is this:
the more features you want, and the better you want it, the bigger, hotter, heavier, or more expensive its gonna get. You HAVE to have one of those! (if not more than one...) So.. you COULD effectively weed out MOST false signals, however, there ARE still going to be other systems that use the same frequency as a radar gun,and it WON'T filter that, unless it is a pretty functional system, and that costs money (see above figure on radars...) on another note.. there ARE shifts in frequencies that will change a signal, however not deviate from the center of 24.150. Its called bandwidth, and it can vary .01 to .25 or greater, depending on what application you talking about. (think back to what was referred to as "side band" on CB's and HAM radios.

End point: RK is right: selectivity, and sensitivity are the two most crucial components in a radar detectors abillity to perform to specification, or above

Krem is right: signal isolation and identification is a possibility, and may become a more useable feature in the future, just not now...

Now back to your regularly scheduled thread.


Ray

Well I'm done with this thread as it's clear you are not even trying to understand any of it and are COMPLETELY misinterpreting nearly everything I say.

I will say that there are MULTIPLE tests (most recent one I've seen was motortrend's) that show the 8500 x50 and the V1 to have almost the exact same range (each detector does a little better than the other on certain ranges/conditions). THOUGH the 8500 has less false alarms. Less FALSE alarms means a detector that is more reliable IF the alarms are truly FALSE. I don't know the technology and neither do you about how detector companies keep detectors from constantly beeping but obviously they do it, some more effectively than others. And some detectors (such as the 8500) show what frequency it is, so if say it's k band and it's not 24.15 then you can continue at your speed. It also shows multiple signals at once if you care for it to do so. Though that's getting off topic. My point is that's it's been shown that detectors can have less false alarms and just as good/better range than other detectors. If you don't care to believe that, that's your choice.

Like I said before less FALSE alarms isn't the only factor in choosing a radar detector, but more false alarms DOES NOT means it's a better detector. But somehow you are trying to say it does, which you have yet to explain.

PM me if you really care to carry this crap on.

i have considered the 8500 for quite a while now...still thinking, but this thread is tilting the scale in favor if it...thanks for the info...

i thought about it, but with buying my wheels and my stereo, my car mods savings accout (i keep all my mod $$$ in a separate act) is pretty much tapped, maybe in a few weeks if it keeps going that long.

BTW, when i clicked on this trhead to view it...

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My favorite mode on the Passport 8500 is ExpertMode, which not only tells you how many bogeys you have, but what bands they are and their relative signal strength.

Since you can use signal strength to denote position, I consider the V1 to be less informative (I have driven with one). In the various caravans I have been a part of, I have never been in a case where the V1 was alerting prior to my 8500, allowing for location in caravan.