Lidar TMG & R7 Hit

Marty K

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Not sure if I got an IPT? TMG and R7 both alerted at the same time, but the LJ alert was very brief (only announced "front", and then went silent), but my RD kept alerting to laser all the way till I was aside the LEO. He was shooting at his sideview mirror, and I am sure I was the target, not a scatter. I verified the distance - about 950ft to 1,000ft max. He took the shot as soon as I was in view. He was marked on Waze, so I was not speeding and expecting the encounter, and I did slow down quite a bit after got tagged to get a good view of his equipment. I am pretty sure it was DEC (although it is not listed as being used in IL). It was a small lidar unit, without the classic handle below.



I would greatly appreciate any experts' input, as I am not sure what to make out of this. Was it an IPT, or he was just aiming at my windshield? I have never seen my R7 go off laser for that long. In fact the only time I made it alert to laser was to put the lidar gun (PL3) right in front of it, almost touching the windshield outside.

I have only done one test of my install so far (with PL3), and it was short range (400ft and below) - it was JTG in all runs, targeting all over the front of the vehicle.

Is it possible he really got immediate speed reading and stopped shooting? That would explain the sudden silence of my LJ, just about 2 seconds after alerted. But it would not explain why the R7 kept alerting for the whole 10 seconds. The time I tested the RD laser alert, it stopped withing 3-4 seconds after I did shot at it.

Or is it more likely his aim was not good and he was mostly hitting my windshield (given the fact it was thru his mirror), and my transponders did not pick up the laser beam consistently?

Either way, I did powered of my TMG system after about 4-5 seconds of initial alert.
 

Kennyc56

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I think the R7 can be explained by it's long latch time. That sure looked like a mirror shot to me also. I doubt that he got your speed based on @VariableWave 's and my testing. My TMG's jammed the hell out out of his DEC over and over with no problem. I was JTG every time unless I was running in auto sleep mode or hot lapping over and over without doing a reset and allowing a small amount of recovery time.
 
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thebravo

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That sounded like the typical latch on the uniden r series, on my R1 it's about 5 seconds after the laser stops being received until the alert stops. I am surprised TMG didn't announce what gun it was... But still with a decent install even if it was DETC it shouldn't PT at that distance.
 

Jag42

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Were you running auto-kill? I jammed DE very consistantly over 900ft, some vids are 3,000ft. Mirror shots are tricky.I could not hear a gun alert ID, whick makes me think it was a sloppy scatter shot on the mirror at 900ft,and he could not get a speed. My Uniden R7 has a latch time of 5-7 seconds on Laser. Great video !
 

Marty K

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Were you running auto-kill? I jammed DE very consistantly over 900ft, some vids are 3,000ft. Mirror shots are tricky.I could not hear a gun alert ID, whick makes me think it was a sloppy scatter shot on the mirror at 900ft,and he could not get a speed. My Uniden R7 has a latch time of 5-7 seconds on Laser. Great video !
Yes, auto-sleep mode, default 4 seconds. Correct, there was no gun alert, it simply stopped alerting. The alert lasted about 2 seconds, all it announced was "front", then it just stopped...

So I guess it could have been a sloppy and a brief shot. If the R7 alerted for 10 seconds, then the actual shot was probably 3 seconds or just under...
 
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Jag42

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So you left ATK on for the full 4 sec,and did not kill it? Hmm i may have the testers do some mirror tactics.
 

Marty K

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So you left ATK on for the full 4 sec,and did not kill it? Hmm i may have the testers do some mirror tactics.
Correct. I waited few seconds for the gun to be announced before I turned the system off. So the LJ were on for at least 5 seconds after the initial alert...
 

doubledge

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I bet it was pure sloppiness by the Leo. Mirror shots are difficult to hit a precise target on a moving vehicle especially at a good distance. He also might have not held the trigger for long. Maybe he was playing around and testing shots on different cars.
Post automatically merged:

Of course it would never hurt to get your system tested again, assuming you did in the first place. But the fact that the R7 went off means he was really sloppy.
 

Marty K

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I bet it was pure sloppiness by the Leo. Mirror shots are difficult to hit a precise target on a moving vehicle especially at a good distance. He also might have not held the trigger for long. Maybe he was playing around and testing shots on different cars.
Post automatically merged:

Of course it would never hurt to get your system tested again, assuming you did in the first place. But the fact that the R7 went off means he was really sloppy.
I am not an expert at all in this. It was also my very first lidar encounter (that I know of, since installed LJ). But your suggestion makes sense. Maybe even a wishful thinking. I just hope my system provides good protection. Short range testing I did was all success, that's why this encounter got me puzzled...
 

doubledge

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There are clearly a number of variables involved many of which can only be speculated about so I wouldn’t sweat it. Sounds like your system did what it was supposed to. But again, if all you did was some basic short range testing I would advocate you try and hook up with someone here who can help you really test it well. This is the only way you will know for sure. Which in turn will increase your confidence in the setup.
 

Marty K

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There are clearly a number of variables involved many of which can only be speculated about so I wouldn’t sweat it. Sounds like your system did what it was supposed to. But again, if all you did was some basic short range testing I would advocate you try and hook up with someone here who can help you really test it well. This is the only way you will know for sure. Which in turn will increase your confidence in the setup.
Definitely.
I have borrowed a lidar gun, but still haven't found anyone around to help testing...
 

OBeerWANKenobi

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Get JBV1 if you can and use it with TMG. It will save alert logs for you and also give you great CSA alerts.
 

VariableWave

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R7 does have a Long latch time to alert like other detectors, but the V1 and I think the Whistler. I wonder if he was having an issue with the Sun reflecting in the mirror to target the vehicle. Watch the video again and see the Sun reflecting off the car's bumper to your angle.

But also agree, need a skilled person to test your system. @Kennyc56 would agree, holes can be found, even when one thinks the system setup looks good, I found them. Love to test with ya, and there are others closer that should help you as well.
 

Jag42

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R7 does have a Long latch time to alert like other detectors, but the V1 and I think the Whistler. I wonder if he was having an issue with the Sun reflecting in the mirror to target the vehicle. Watch the video again and see the Sun reflecting off the car's bumper to your angle.

But also agree, need a skilled person to test your system. @Kennyc56 would agree, holes can be found, even when one thinks the system setup looks good, I found them. Love to test with ya, and there are others closer that should help you as well.
Good catch on the sun reflection.
 

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