Speed measurement but Uniden R3 detector silent.

[EdG]

It’s funny I see this post today. I don’t have a uniden, but I do have the escort 360 with the mobile app and everything set up. There are a few of those speed signs in my town. Two of them my gps has learned and muted the signals, but it still shows up on the display, just as you have mentioned with yours. One of them, I don’t get any sort of alert for, as if it is not there. Same exact issue you are having with yours. All 3 of the signs are the same type and were all installed around town in the same week. I have no idea why I would get alerts for 2 but not the 3rd. Hmm ?

There must be a frequency that the sign is using not detected by standard radar detectors since I am not the only one. I don't know enough about this subject to know what that could be.

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[RepyT]

Three possibilities:

- Highway mode typically ignores X. Maybe the first unit was replaced with one using older tech, not monitored in 9GHz X.

- Sometimes they try out new tech at a fixed roadside sign to get lots of results before fielding mobile to assist with training.. The Electronic Warfare sophistication that can occurs even with supposed passive detectors is amazing. Signals also can be shifted in a way to act like radar detector detectors. It’s possible the roadside one was updated to a more active savvy one beyond the detection capes of your older unit. Frequency hopping& spread, sensing detectors and shifting crews, quite possible.

-Finally, maybe they upgraded to laser?

.Radar (Radio Detection and Ranging) shows age By name and I go way back. Worked with it 25 years, usually higher power aircraft systems but similar tech.. They aren’t standing still so detectikn and avoidance is quite complex.

Detectors don’t need retuning like a piano, sorry. Solid state components took care of that, does whoever said that have one with tubes? It’d need periodic cal.

Ever pass someone and as you approach your detector triggers? That’s due to (even with sufficient shielding) radiation of the Intermediate frequency produced by an oscillator in the approaching detector. That signal can be sniffed and the resulting transmission changed in cat & mouse fashion.

To reduce sophisticating Nd sun that up:
Rx RF signal - IF = speed data

 

[hpbyhermann]

Three possibilities:

- Highway mode typically ignores X. Maybe the first unit was replaced with one using older tech, not monitored in 9GHz X.

- Sometimes they try out new tech at a fixed roadside sign to get lots of results before fielding mobile to assist with training.. The Electronic Warfare sophistication that can occurs even with supposed passive detectors is amazing. Signals also can be shifted in a way to act like radar detector detectors. It’s possible the roadside one was updated to a more active savvy one beyond the detection capes of your older unit. Frequency hopping& spread, sensing detectors and shifting crews, quite possible.

-Finally, maybe they upgraded to laser?

.Radar (Radio Detection and Ranging) shows age By name and I go way back. Worked with it 25 years, usually higher power aircraft systems but similar tech.. They aren’t standing still so detectikn and avoidance is quite complex.

Detectors don’t need retuning like a piano, sorry. Solid state components took care of that, does whoever said that have one with tubes? It’d need periodic cal.

Ever pass someone and as you approach your detector triggers? That’s due to (even with sufficient shielding) radiation of the Intermediate frequency produced by an oscillator in the approaching detector. That signal can be sniffed and the resulting transmission changed in cat & mouse fashion.

To reduce sophisticating Nd sun that up:
Rx RF signal - IF = speed data

Read the reply above..

 

[EdG]

Three possibilities:

- Highway mode typically ignores X. Maybe the first unit was replaced with one using older tech, not monitored in 9GHz X.

Interesting thought. I'll try city settings when I pass it next time.

- Sometimes they try out new tech at a fixed roadside sign to get lots of results before fielding mobile to assist with training.. The Electronic Warfare sophistication that can occurs even with supposed passive detectors is amazing. Signals also can be shifted in a way to act like radar detector detectors. It’s possible the roadside one was updated to a more active savvy one beyond the detection capes of your older unit. Frequency hopping& spread, sensing detectors and shifting crews, quite possible.

-Finally, maybe they upgraded to laser?

This unit detects laser and I have been hit out on the highway so I know it does work at least for some laser detectors.

.Radar (Radio Detection and Ranging) shows age By name and I go way back. Worked with it 25 years, usually higher power aircraft systems but similar tech.. They aren’t standing still so detectikn and avoidance is quite complex.

Detectors don’t need retuning like a piano, sorry. Solid state components took care of that, does whoever said that have one with tubes? It’d need periodic cal.

Ever pass someone and as you approach your detector triggers? That’s due to (even with sufficient shielding) radiation of the Intermediate frequency produced by an oscillator in the approaching detector. That signal can be sniffed and the resulting transmission changed in cat & mouse fashion.

To reduce sophisticating Nd sun that up:
Rx RF signal - IF = speed data

 

[RepyT]

Is there an ECHO... ECHO... echo in here?

 

[blitz]

I detect K and Ka bands from both police and other similar signs. I don't believe I can choose to block signals, only silence them.

How would determine if specific portions of those bands were blocked by the detector?

Here is a link to Uniden’s support site for your R3 —Uniden R3

Note, there are firmware updates available on that site, so they may apply to you. The owner’s manual is also listed there.

Secondly, make sure you (or someone else who uses your car) have not inadvertently muted alerts from that area:

Troubleshoot detector:
1: Is it the GPS setting:

2. Is it the Traffic Sensor Filter?

3. Is it the Quiet Ride setting muting your alarms?

There are several things you will need to check.

 

[ManfromRI]

I detect K and Ka bands from both police and other similar signs. I don't believe I can choose to block signals, only silence them.

How would determine if specific portions of those bands were blocked by the detector?

You would have to go into Ka band settings and see if Ka Band (1,2,3,4...etc) are off or on. Usually you would run whichever bands are in your area and disable the others to gain some scanning speed. I also have the Old Redline and this was a popular setting that they ended up adding down the line.


I would also check to see if you have the latest firmware update from uniden as they have some fixes for the MRCD detection.

 

[EdG]

Here is a link to Uniden’s support site for your R3 —Uniden R3

Note, there are firmware updates available on that site, so they may apply to you. The owner’s manual is also listed there.

Secondly, make sure you (or someone else who uses your car) have not inadvertently muted alerts from that area:




Troubleshoot detector:
1: Is it the GPS setting:


2. Is it the Traffic Sensor Filter?


3. Is it the Quiet Ride setting muting your alarms?



There are several things you will need to check.

The detector was on Highway. This sign probably uses X band which is silenced by default with Highway setting. All other settings are default because I don't know enough about different types radar to change from default. I assumed that Highway was most sensitive so I just leave it on Highway. RepyT made the suggestion that Highway may not use X band.

 

[RepyT]

Ed,
Make sure you don’t have Quiet Mode on. I suspect it’s ON. It could be X too, seldom used but it’s off by default (not blocked).

Being the law abiding citizen at least part if not all the time, your R3 in QM won’t even warn you of radar signals in any band if you’re not speeding. GPS wise it knows location and limits (based on last update, they change, seldom go UP.. You can program your detector to do or not do much at 5, 10, 15, etc. over posted memorized limits.

Is it possible you were under posted limit and +factor of the detector setting (not sure what default is on R3) when you where first noticing the problem? Later exploring, you slowed down maybe, no warnings, no need.

Remember this is a Radar detector not a policeman detector. There are many ways to get measured besides RF and Laser.
Aircraft flying over marked distances is popular and almost impossible to detect but active users of apps will mark warnings once they see the gig. Timing using ground point marks or landmarks works too with good viz and holds up in court (courtesy of LE pals). Best defense is not speed obviously.

I got caught doing barely double digits in a rented MB in MD, FL D/L, mil, no chance of grace. I stayed left most slower lane toward Hagerstown, right Lane traffic doing 110 or more, crest hill, MSP pointing groups to left shoulder, walking and writing while I finally noticed Cessna above. I could almost hear the zooming right laners laughing. Choppers sometimes get this duty in larger more populated areas. So I pain fine, first (and last I hope) since ‘78, 1978 not 1878.

Maybe a firmware/software upgrade is good enough to stay ready. Uniden may run trade in specials like Escort does, two Max 360s here, working fine. I reads lots about R7.

Keep in mind nothing is faster than laser ( splashover from other car reflection warning possible but not likely) or POP that shoots a burst of speed clocking RF at you that out and back only takes 12.36 microseconds to go a mile. Most shots..1/8 mile-ish, giving you either a warning from another shot or you just have slightly more than 1.5 microseconds before your bounce is at the occifers gun radome. Add several more microseconds for processing, same for your detector but you get a .75 microsend head start reducing speed as the return hasn’t reached the gun, but when it does, is based on your initial speed. Yes they can tell if you’re accelerating (bad) or deceleratiing ( you stand a better chance).

B/L is advance warning and reducing speed before being measured is only way to avoid POP, other than active (don’t get caught) systems.

Good luck lighting up the signs. I hear it flashes different colors if you get high score.

 

[ExVTEC]

I had an R7 I just returned. Passed 15 state troopers and zero detection yet it would go off for every automatic door I'd pass

 

[RepyT]

I had an R7 I just returned. Passed 15 state troopers and zero detection yet it would go off for every automatic door I'd pass

Thus my choice of Escort 360. (not ci) that alerts some falsely until it learns well. Hard wired using Escorts power harness, you get the remote wired function (Velcro’s to left side of steering column so not too distracting, easy touch), with Blendmount and Escort cam too. Only pain is WiFi pairing with Escort cam vs home network before leaving. I could just wait until out of home range but occasionally auto join doesn’t.

Of the 15, how many were actively working traffic? Sometimes they just meet up to plan or discuss as no facility close. Most I’ve seen without responding gathered were 8 county.

 

[hpbyhermann]

I had an R7 I just returned. Passed 15 state troopers and zero detection yet it would go off for every automatic door I'd pass

I have had nothing but good luck with mine. Like everything else it seems you have to adjust it to your needs.

 

[RepyT]

I have had nothing but good luck with mine. Like everything else it seems you have to adjust it to your needs.

Escort 360 and R7 are quite similar. Both can be customized to user needs but defaults seem good choices for novices too.
Clincher for me was the trade in deal along with the ‘plays nice with’ package of their large shouldered lipstick size dash cam. It integrates w/detector (power jumper) and I like the mounting. It all fit the Blendmount quite well to make a solid compact unit that doesn’t budge.

No matter what choice people make, for detercor, Blendmount carefully installed is worth the high price. No more window cups or dash Velcro.

 

[EdG]

I had an R7 I just returned. Passed 15 state troopers and zero detection yet it would go off for every automatic door I'd pass

I've read speeding tickets are way down. +100 mile/hr tickets are up, but overall tickets are down. A lot has to do with less traffic, obviously. But I have also read that police do not want to give trivial tickets (just for the revenue) because they don't want to be exposed to people needlessly out of COVID 19 concerns. I have been passing more police without the detector going off much more than a couple of months ago. I am wondering if police are sitting out there for show and looking for people who are driving WAY over the speed limit, not just 10-15 MPH over on the freeway.

 

[hpbyhermann]

I've read speeding tickets are way down. +100 mile/hr tickets are up, but overall tickets are down. A lot has to do with less traffic, obviously. But I have also read that police do not want to give trivial tickets (just for the revenue) because they don't want to be exposed to people needlessly out of COVID 19 concerns. I have been passing more police without the detector going off much more than a couple of months ago. I am wondering if police are sitting out there for show and looking for people who are driving WAY over the speed limit, not just 10-15 MPH over on the freeway.

?% correct

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