Can anything be done about Poliscan falses?

[jdong]

I've gotten maybe 2 or 3 Poliscan falses over the course of the last year. It's not a lot, and not extremely annoying, but I was caught off guard today by a Poliscan false that lasted at least 3-4 seconds (I saw it still a bit after my JTK in yellow mode but I only have a 5 second JTK timer, so I couldn't tell how long it really lasted). There was a Volvo next to me.

I think it's safe to turn off Poliscan in California, but just out of curiosity, is any more filtering possible, or is the current state of Poliscan false rejection as good as it gets?

[BestRadarDetectors]

2-3 a year really is nothing to be concerned with. Issue is Poliscan can leave little time to react so it will alert immediately without verifying it to be a real threat. If we tried to filter deeper it could delay an alert but with a real Poliscan alert you need to be informed immediately. If you only drive in California you can turn it off because they are not used there.

[beingaware]

If its not a threat faced in your area and you are not wondering out of your state, turn up the filtering.

[awj223]

This is why I disabled Poliscan on my ALP. I got about 2-3 falses and finally decided that I'd rather just turn it off. Did give me some good JTK practice though.

[JStump2490]

I am about to turn it off as well. I don't think they use it here but on one particular mile marker on a route I frequent, there is something giving off poliscan frequencies. My radar detector picks it up one way and my ALP picks it up going the other way. Freaks me out each time but then I look at the mile marker on the highway and realize what it is.

[awj223]

I am about to turn it off as well. I don't think they use it here but on one particular mile marker on a route I frequent, there is something giving off poliscan frequencies. My radar detector picks it up one way and my ALP picks it up going the other way. Freaks me out each time but then I look at the mile marker on the highway and realize what it is.

Have you figured out what "it" is?

[awj223]

2-3 a year really is nothing to be concerned with. Issue is Poliscan can leave little time to react so it will alert immediately without verifying it to be a real threat. If we tried to filter deeper it could delay an alert but with a real Poliscan alert you need to be informed immediately. If you only drive in California you can turn it off because they are not used there.

Doesn't the ALP actually jam the Poliscan though? I think what you're saying is that Poliscan gets speeds very quickly and you need to start jamming something that may look like a Poliscan before verifying that the threat is real. Would it not be possible to disconnect the jamming from the audible alert? (for example, begin jamming, and then if the threat is verified as real, maybe 0.5 seconds later, then give an audible alert; otherwise, kill the jamming and suppress the alert)

[radargeek]

There's no Poliscan in my area so I have zero experience with it, but with the short detection range on it is it actually possible to jam, slow, and JTK a Poliscan? Or does it all happen so fast you pretty much have no choice but to JTG it if you're speeding?

Perhaps there could be a setting to filter Poliscan like it does on the other guns (with the normal delay), or maybe that's what the Poliscan filter does now? There's no way to distinguish a real Poliscan from a Volvo/Mazda in the firmware? Pulse rates are identical?

[BestRadarDetectors]

There's no Poliscan in my area so I have zero experience with it, but with the short detection range on it is it actually possible to jam, slow, and JTK a Poliscan? Or does it all happen so fast you pretty much have no choice but to JTG it if you're speeding?

Perhaps there could be a setting to filter Poliscan like it does on the other guns (with the normal delay), or maybe that's what the Poliscan filter does now? There's no way to distinguish a real Poliscan from a Volvo/Mazda in the firmware? Pulse rates are identical?
You will not JTK a Poliscan. They are mobile devices placed on the side of the road and are looking for short distances. And yes you can successfully jam it.. Look at Winterbrew's 20+ Poliscan videos so see how quick they come up on you and how fast the ALP responds.

[JStump2490]

Have you figured out what "it" is?

No idea, it happens in this area though. Thought maybe it was an airport or something because my radar detector likes to pick up laser at the Cleveland Hopkins airport but there is nothing of the sort in the area. 3513

EDIT: I do believe there are traffic monitors around the highways in Ohio so maybe that is it. There are electronic signs over the highways that give estimated time of arrival to other highways and places like the airport which I am assuming use real time traffic flow so maybe that is causing it.

[shanetrainST]

This is a Poli aswell, but used for traffic/toll monitoring.
It sets of the Poliscan Alarm

3516

[winterbrew]

See near the end of the vid the 3D maps of the vehicle the poli unit produces ;

https://www.youtube.com/watch?v=sUcWzsqFuTk

[Abarth695]

So the Poliscans attached to the toll overpasses in Queensland, Australia, if I'm correct, the alert comes on immediately as I go through the overhead structure, no warning at all. Am I right to assume that a real Poliscan would give me virtually no warning at all as well?
Or is it the same that it would jam at that instant and I would have the time to slow?
Hope that makes sense

[beingaware]

depends, the poliscan at rocklea gives me about 400m warning when heading east but pnly 2m warning heading west (targeting rear plates).

[RedRocket]

Am I right to assume that a real Poliscan would give me virtually no warning at all as well?
Or is it the same that it would jam at that instant and I would have the time to slow?
Hope that makes senseIt's likely jamming would be ineffective to the overhead gantry mounting at close range...your Sensors are not oriented correctly to neutralize for that angle of incoming IR.

[JStump2490]

See near the end of the vid the 3D maps of the vehicle the poli unit produces ;

https://www.youtube.com/watch?v=sUcWzsqFuTk

Wow, that's pretty cool, I assume the laser is what makes that 3D image. I wonder what would happen if you jammed it and it didn't know what kind of car you had.

[sfpd]

I get Poliscan falses on a daily basis-- primarily from the LIDAR on all of the Google self-driving cars in my area. Let me know if there is any diagnostic information I can send in to help refine the system.

[jdong]

I get Poliscan falses on a daily basis-- primarily from the LIDAR on all of the Google self-driving cars in my area. Let me know if there is any diagnostic information I can send in to help refine the system.

UGH it took me a while to realize that these things cause PoliScan falses too. They're all over our freeways around here.

[beingaware]

lol, Breaking news, google car crashes for the first time ever, believed to have been caused by laser jammers.
Further details to come...