3rd Night In depth test (K Band) 9500i vs rx65 *PHOTO*

[lordhamster]

Well at the behest of HappyA$$ I took one third and final go at the K band construction sign. This time comparing rx65 and 9500i.

I won't go into huge detail, you all know the routine. In this case:

On approach:

9500i = 1.2 miles
rx65 = .9 miles

Approaching radar sign from behind (radar shooting in direction of travel).
rx65 = .3 miles
9500i = .2 miles

didn't do a rear radar detection test today.

Image is a bit hard to see @ this size but Red track is rx65 Blue is V1 and yellow pin is location of sign

[happya$$]

Well at the behest of HappyA$$ I took one third and final go at the K band construction sign. This time comparing rx65 and 9500i.

I won't go into huge detail, you all know the routine. In this case:

On approach:

9500i = 1.2 miles
rx65 = .9 miles

Approaching radar sign from behind (radar shooting in direction of travel).
rx65 = .3 miles
9500i = .2 miles



didn't do a rear radar detection test today.

Thanks man for doing this

[Stg3SRT4]

I just encountered a K band speed sign. I tuned onto the road, and the speed sign was shooting the radar the direction of travel(away from me). I was very, very disapointed. I was within 200-300 feet of the sign, when I got my first initial k band alert. After I passed the sign, the 9500i went from 1 to 2 lights to full blown Alert.

I have come to the conclusion that I now miss my V1 and will be returning my 9500I for a new V1. I was literally looking at the speed sign when I got my first hit on the 9500I. Not impressed.

[lordhamster]

I just encountered a K band speed sign. I tuned onto the road, and the speed sign was shooting the radar the direction of travel(away from me). I was very, very disappointed. I was within 200-300 feet of the sign, when I got my first initial k band alert. After I passed the sign, the 9500i went from 1 to 2 lights to full blown Alert.

I have come to the conclusion that I now miss my V1 and will be returning my 9500I for a new V1. I was literally looking at the speed sign when I got my first hit on the 9500I. Not impressed.

This is almost the same experiences I've been having with it.

I hope that the GOL guys test this scenario. Radar shooting in direction of travel... because cops under bridges love doing this.

[stealthJamal]

I just encountered a K band speed sign. I tuned onto the road, and the speed sign was shooting the radar the direction of travel(away from me). I was very, very disappointed. I was within 200-300 feet of the sign, when I got my first initial k band alert. After I passed the sign, the 9500i went from 1 to 2 lights to full blown Alert.

I have come to the conclusion that I now miss my V1 and will be returning my 9500I for a new V1. I was literally looking at the speed sign when I got my first hit on the 9500I. Not impressed.

This is almost the same experiences I've been having with it.

I hope that the GOL guys test this scenario. Radar shooting in direction of travel... because cops under bridges love doing this.

I want to test this too. I keep pressing the other guys that we shuold test this, also we have never tested it. The other guys don't seem to be as interested in it as me. The other guys said we can do it at the AZ test if we have time, but we are already streched for time so I doubt it will happen.

[microbb]

Lordhamster what I find interesting about your post is that on nights 1 & 3 you recv'd the same distance of 1.2mi on the 9500. So what was different about night 2? You pointed out the weak Ka signals were present on night two, that was the only difference.

So this brings up a question on maybe what is an adaptive scanning algorithm on the 9500. If the 9500 recv's a weak Ka it MAY vary the amount of scannning time devoted to each band. With Ka being the greatest threat it may suddenly devote more time(effective sensitivity increase) trying to re-discover the Ka signal and lessen time looking at K-band.

It also brings to mind a more in depth question which is, how many signals are the detectors(pick a brand/model) detecting but never reporting? For example you are driving down the road with a quiet detector that in reality has detected and is now analyzing six seperate signals.

microbb

[lordhamster]

Lordhamster what I find interesting about your post is that on nights 1 & 3 you recv'd the same distance of 1.2mi on the 9500. So what was different about night 2? You pointed out the weak Ka signals were present on night two, that was the only difference.

So this brings up a question on maybe what is an adaptive scanning algorithm on the 9500. If the 9500 recv's a weak Ka it MAY vary the amount of scannning time devoted to each band. With Ka being the greatest threat it may suddenly devote more time(effective sensitivity increase) trying to re-discover the Ka signal and lessen time looking at K-band.

It also brings to mind a more in depth question which is, how many signals are the detectors(pick a brand/model) detecting but never reporting? For example you are driving down the road with a quiet detector that in reality has detected and is now analyzing six seperate signals.

microbb

I don't know what was different. With only three samples its hard to say whats going on, it may simply be natural variations.... If I had the time to run the test 10, 20, 30, 40 or 50 times, perhaps we'd get some more consistent results. For now, I'm just going to ignore the .8 of the other night and give the 9500i the benifit of the doubt...

The .8 vs 1.2 does not worry me. What worries me is the fact that when I approach the radar from the rear, there is very very bad warning.

[insidercw3]

Well my, my. You do know how hard it is to detect radar that is being emitted ahead of and in your direction of travel, don't you? Imagine a water hose, if you stand behind it you don't get wet, but if you hit an object with the water you may get a bit damp from the splatter (reflection).
Certainly I misunderstood the posting somehow. You couldn't have possibly expected to detect a signal before you enter into its transmitted path, right???

[lordhamster]

Well my, my. You do know how hard it is to detect radar that is being emitted ahead of and in your direction of travel, don't you? Imagine a water hose, if you stand behind it you don't get wet, but if you hit an object with the water you may get a bit damp from the splatter (reflection).
Certainly I misunderstood the posting somehow. You couldn't have possibly expected to detect a signal before you enter into its transmitted path, right???

I most certainly can. My V1 detected this signal, so why can't the 9500i?

This is a common scenario... let me illustrate

In The image, the yellow push button represents the cop. The blue line the standard path of my car. The Red line represents the cop's radar beam.

If the cop is getting any readings whatsoever, then there should be scatter back to me to detect.

This happens VERY often around here. A cop will park under a bridge and will shoot radar in the same direction traffic is moving... essentially shooting passing cars from behind.

To me the difference in radar alerts when headed straight into a beam is not relevant... like I said even at .8 miles its plenty of time to slow down.

What concerns me is the lack of indirect pickup. In a case like the picture, (which is what the speed sign situation I'm describing is almost identical to) the warning might come too late.

Rather than squabbling over which detector gets 100 feet more detection, we should be worried about how adequate the response time is.

[insidercw3]

Testing against Reflected Radar is a very bad idea, especially if you cannot control the quality of the reflected signal. All things being exactly equal I think everyone already knows that the V1 typically outperforms Escort units in detection distance, ie senstivity. Still though, it is very bad form to test against a hoped for reflection.