Difference between IO & QT

[Motor On]

What's the difference between POP and QT? I've tried searching but can't find a post detailing the differences...

POP is a digital preprogramed signal burst that cannot be solely used to issue a ticket (ticket won't stick as discussed above)

Q/T is a user actuated

[Stealth Stalker]

What he said. Although I disagree about the ticket not sticking.

[CJR238]

While generally 3 seconds and below is a faster then recommended (QT), one second and below fits our definition best.

"Recommended" by whom? Dude, you can't keep spouting this made-up propaganda until you find us a credible technical or LE source, in writing, that backs it up. If this is just your personal opinion of how LEOs ought to operate, then admit it to everyone. If you have an authoritative source that PROVES that IO shots are officially recommended to be greater than 3 seconds, we need to see it now.

See below, IMO its more of a generalization below 3 sec is QT. We were defining the time for our purpose, not debating QT. I don't believe QT is 3 seconds but as i stated QT at ~1 sec and below fits our purposes best as it has been stated before.

1 sec and below fits our definition of QT, i know i wouldn't want the definition of QT to be up to 3 seconds.

Hmmm... I have never seen a manufacturer recommend a trigger pull time. Which manufacturer does that?

Ugh my google fu is not being nice to me, I can't find anything at the moment, but I'm fairly sure NIST/IACP standards say 3 seconds as well, I'll have to check later tho as I'm going to sleep maybe I'm wrong this time.. I did find an Australia NSW gov document that says it must be 3 seconds tho;

I recognise that motorists who are speeding, and spy a highway patrol vehicle, will usually instinctively
brake to evade a fine. In fairness, those motorists should receive an appropriate infringement notice.
Police procedures, however, provide that a requirement for a valid speed check includes that the duration
of the check must not be less than 3 seconds

[CJR238]

Okay, using the reference that you provided -- which we both accept as authoritative -- let's put this QT debate to bed for good:

There have been claims that a power surge occurs when the RADAR unit is first switched on from the hold switch position and that this power surge will result in inaccurate and supposedly high readings. Recent tests conducted by the National Highway Traffic Safety Administration (NHTSA) indicated that no false readings were noted during their tests. In digital type RADAR, the verification circuitry prohibits the RADAR reading from being displayed until a sampling is done over a period of time sufficient to analyze the signal to make certain that it is a Doppler signal rather than electrical noise. This precludes the RADAR from reading a high number, or any number in fact, until the signal is stabilized. The anti-detector switch effect is not a factor in modern RADAR operation, but it is emphasized that the target should be observed for a period of time prior to the reading being obtained and sufficient information should be obtained to develop target history to support any alleged violation.

What that says is:

1. Quick trigger results in consistently accurate readings.

2. The RADAR unit itself computes what your "reasonable time" is to get an accurate reading, not you.

3. You do not have to trigger for any specific or prolonged period of time.

4. Quick trigger is not a factor in inaccurate readings.

5. All that is necessary to accompany your Quick Trigger readings is your visual estimation and audible tracking.

There you have it, folks. Straight from the authoritative source. This whole nonsense about QT being "illegal", "not allowed", "not recommended", "against the book", or any of the other hyperbole that the Escort fans keep pulling out of their backsides is a lie. It's a lie perpetrated by Escort and their fanboys in order to gloss over their serious inadequacies, rather than just fix them.

Just like nine_c1 said, even if the lie were truth, it would still be a moot point, because you're still going to get a ticket, and you're still going to lose in court. And the only way to prevent that is to buy the right detector in the first place.

[/debate]

Seems to me that long laundry list you shortened and spun supports a longer amount of time, supporting a recommended tracking of longer then 1 second at the very least.

[Motor On]

What he said. Although I disagree about the ticket not sticking.

Well it won't stick the second someone brings the MPH manual into court that says POP is unreliable enough that it cannot be used to issue a citation. Of course you've got to prove it was POP, as a result of the guilty until proven innocent.

[Stealth Stalker]

Exactly. No officer is going to admit that, so it's moot.

[Matt]

Microwave and Laser Radar
Typical Timing

.
Microwave and laser traffic radar minimum time (integration or sample period or time) to track a target varies with model from about a quarter of a second (250 milliseconds = 250 ms) to a half of a second (500 ms) or more.

250 ms = 1/4 sec = 4 samples / sec
333 ms = 1/3 sec = 3 samples / sec
500 ms = 1/2 sec = 2 samples / sec
Try clapping at the rate of 3 or 4 times per second to see how fast 3 or 4 samples per second really is, and how little time one has to react to such a short duration signal. In many cases a radar or ladar may require more than 1 sample period to establish a target's speed.

Police Traffic Radar Handbook

I found this info on the above site. It claims to be a handbook of sorts. I am sure somebody here has already looked at this, and I don't claim to be an expert or make claims that this is correct info, however it supports the theory that 250ms is possible. 1/2 second is more likely...

[The Chariot]

Exactly. No officer is going to admit that, so it's moot.

Are you saying cops lie? No way!!!! We had that much frittered out a long time ago, just read the LEO forums!

[Riptide]

Bottom line: It doesn't matter if its legal or not, or if its in the books. A cop can give you a ticket for smelling bad if they want to.

If QT is used in your area get a V1 or Whistler. (Or maybe STi-R: http://www.radardetector.net/forums/...s-ka-k-qt.html)

[CJR238]

Bottom line: It doesn't matter if its legal or not, or if its in the books. A cop can give you a ticket for smelling bad if they want to.

Absolutely. However it does matter if its legal or not, if what hes doing is not legal you can get it thrown out and get the officer reprimanded. You just need the balls to do it, and be smart enough to prove it.