R3 doesn't detect speed sign

Ropchips

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Noticed a new speed sign this evening and my R3 didn't alert to it at all.
I changed some settings before I turned back to see if it would detect it.

I turned X band on, MRCD on, K block off, K filter off, running K wide, KA wide , KA filter off, Laser on but still no alert to the sign.
Anyone know anything about this sign? It has a blueish led flashing just below dead center.
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2020-02-12%2021.27.35.jpg


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LuckyXII

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Did you make sure “Quiet Ride” was not enabled?
 

InsipidMonkey

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This is a common issue that confuses new users. While the sign could be operating at a frequency outside of the detection range, the more likely answer is that the detector is actively filtering it out. Many speed signs use modulated radar to conduct traffic studies (vehicle counts, direction, size, average speed, etc), and most detectors attempt to filter this out by default because all police radar is non-modulated (CW).

Further reading:
 

sdrawkcaB

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@InsipidMonkey - Do you have any of these same or similar signs near you by chance, ones that do not set off your detectors?
 

InsipidMonkey

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@InsipidMonkey - Do you have any of these same or similar signs near you by chance, ones that do not set off your detectors?
I can't think of any nearby at the moment (and I obviously can't check my JBV1 logs). What are you thinking?
 

InsipidMonkey

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sdrawkcaB

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I can't think of any nearby at the moment (and I obviously can't check my JBV1 logs). What are you thinking?
I'm curious to know if international detectors by Escort such as the RX65a, RX65e, RX65i, and RX65ru can possibly detect them using K Pulse, K Rapid Pulse, and K Hyper Pulse detection modes toggled on. Pulsed K Band isn't used for speed enforcement here in the USA, so the detectors sold here do not contain such detection features.
 

InsipidMonkey

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I'm curious to know if international detectors by Escort such as the RX65a, RX65e, RX65i, and RX65ru can possibly detect them using K Pulse, K Rapid Pulse, and K Hyper Pulse detection modes toggled on. Pulsed K Band isn't used for speed enforcement here in the USA, so the detectors sold here do not contain such detection features.
It's possible that some use pulsed K band, but most I've seen are FMCW. More advanced radar signs can differentiate between lanes using a phased array, and many also record vehicle lengths to distinguish between car and truck traffic.
I thought I had a post summarizing some FCC test reports for speed signs and traffic sensors, but I can't find it now. I'll tag you if I come across it.
 

Heywood

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No one asked what FW he’s running. I did have an issue with a couple of speed signs on FW 1.46.
They did magically re-appear with 1.47 and up.
If it’s with newer FW, I’d guess must likely below the R3’s floor. It doesn’t look high tech. We have a few of those here as well.
 

Ropchips

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No one asked what FW he’s running. I did have an issue with a couple of speed signs on FW 1.46.
They did magically re-appear with 1.47 and up.
If it’s with newer FW, I’d guess must likely below the R3’s floor. It doesn’t look high tech. We have a few of those here as well.
1.50
 

nomore55

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I've got these newer signs in all nearby towns. The detectors rarely see them. Not a successful "testing" strategy.
 

surprisinguy

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Yeah, pretty much cant pick these up - freaked me out when I encountered one in my neighborhood, thinking there was some new founded radar the cops had come out with.
 

thanks

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@InsipidMonkey - Do you have any of these same or similar signs near you by chance, ones that do not set off your detectors?
I have signs that dont detect, and I dont care. I spent a few days trying to figure out one local sign which 'occasionally' detected. Ran past it on TONS of v1 and NR settings. One day it would set of my RD with it's regular settings, other days, I'd have to disable all K filtering, and most often, even at the no filtering noisy settings, it wouldnt alert....

I have also passed many others that don't alert. Anyone who raises these questions should buy or borrow a K and Ka gun, and play around with it.... Only then will you realize how your RD works, and how it should alert to actual radar guns, or identify issues with your RD CONSISTANTLY...

I havent checked, but there should be a sticky, dont test with LEO's or speed signs...
BTW, if I see a speed sign, I don't like flying past it, as it flashes your speed for all to see, even LEOs who might be hanging out around them.... And they do...
 

Heywood

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You don’t test against them, but speed signs are a good source to check to see if something weird is going on with your detector. Sometimes bad things happen to good detectors

They’re not that high tech of a device where all of a sudden your detector stops detecting them.
I don’t buy the filltering theory too much. That’s a famous Escort excuse of why it’s inconsistent.

Weather does play a factor in the scenario as well. As it gets colder, the frequency gets driven down. Also if it’s solar powered, it can effect the strength on cloudy days, colder days, and days of high traffic as the batteries work harder.

It’s something to keep you eye on normally. This sign is new to the OP, so it could be lower. If he had another detector to test against this sign, it might give a better answer.

Normally, if it’s a sign that’s always been picked up, and locked out, the detector should do it consistently and reliably. That’s what makes it trust worthy. It’s easier to check on if you have multiple detectors against the source
 

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You don’t test against them, but speed signs are a good source to check to see if something weird is going on with your detector. Sometimes bad things happen to good detectors

They’re not that high tech of a device where all of a sudden your detector stops detecting them.
I don’t buy the filltering theory too much. That’s a famous Escort excuse of why it’s inconsistent.

Weather does play a factor in the scenario as well. As it gets colder, the frequency gets driven down. Also if it’s solar powered, it can effect the strength on cloudy days, colder days, and days of high traffic as the batteries work harder.

It’s something to keep you eye on normally. This sign is new to the OP, so it could be lower. If he had another detector to test against this sign, it might give a better answer.

Normally, if it’s a sign that’s always been picked up, and locked out, the detector should do it consistently and reliably. That’s what makes it trust worthy. It’s easier to check on if you have multiple detectors against the source
Local signs go from no alerts to alerts sometimes on a daily basis. They alerted for a while then stopped for months, then again.... it can drive you crazy to think that your RD is bad... if you want a real test, use a real LEO type radar gun, its worth the peace of mind.
 

Ropchips

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Local signs go from no alerts to alerts sometimes on a daily basis. They alerted for a while then stopped for months, then again.... it can drive you crazy to think that your RD is bad... if you want a real test, use a real LEO type radar gun, its worth the peace of mind.
I wasn't testing my RD. This speed sign wasn't there 2 days ago and I was only curious to know the reason for it being invisible.
 

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