What can cause MRCD false alerts? (1 Viewer)

CarefulDriver

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These alerts are fairly rare, but sometimes, when driving in major cities I get instantly full power MRCD alert, which lasts about 10-20 seconds, and I'm not sure is it false at all. I'm running R1 (1.46).
 

DChiJEllis

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Any K band source can present as an MRCD false; door openers particularly. Depending on where you are driving it may be a legit MRCD speed camera.
 

Heywood

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Some cars can cause MRCD false’s. The MR stands for Multi Radar. It’s in the K band spectrum. Even in the Radenso’s, there are some vehicles that will cause MRCD falses. Ford Platinum Trim models.
Toyota Highlanders
Subaru Outbacks with the eye.
Newer Nissan Rogues.
Just a few.

Also your running 1.46 on the R3. MRCD isn’t that huge in the states yet. Unfortunately the R3 alerts both MRCT and MRCD as MRCD. It doesn’t know the difference unlike the R-EX and Radenso’s.
90% of the RLC are MRCT. The other 5% are Gatso or Redflex.

That said, I live in a pretty heavy photo Enforced region. Both MRCT and MRCD.
I haven’t had too many MRCD false’s. If you can identify anything that’s K band in the area, that might be the problem.
The other options if it’s getting worse, is to re-load the FW, or reach out to Uniden to get it checked out.
 

CarefulDriver

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Some cars can cause MRCD false’s. The MR stands for Multi Radar. It’s in the K band spectrum. Even in the Radenso’s, there are some vehicles that will cause MRCD falses. Ford Platinum Trim models.
Toyota Highlanders
Subaru Outbacks with the eye.
Newer Nissan Rogues.
Just a few.

Also your running 1.46 on the R3. MRCD isn’t that huge in the states yet. Unfortunately the R3 alerts both MRCT and MRCD as MRCD. It doesn’t know the difference unlike the R-EX and Radenso’s.
90% of the RLC are MRCT. The other 5% are Gatso or Redflex.

That said, I live in a pretty heavy photo Enforced region. Both MRCT and MRCD.
I haven’t had too many MRCD false’s. If you can identify anything that’s K band in the area, that might be the problem.
The other options if it’s getting worse, is to re-load the FW, or reach out to Uniden to get it checked out.
Yeah these alerts are quite rare, they are not a problem. MRCD/MRCT is used here in vans/trucks that are left on bus stops. Btw, can MRCD/MRCT be used from moving vehicle?
 

Heywood

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Yeah these alerts are quite rare, they are not a problem. MRCD/MRCT is used here in vans/trucks that are left on bus stops. Btw, can MRCD/MRCT be used from moving vehicle?
No. They’re stationary so far. As in sitting still while in use.
They have to focus the camera. The ones they use here are very high resolution and filtered. So high that you can almost read the SRT on my rims when I was testing the NoPhoto system a couple of years ago.

I was going 63 in a 50 km zone on purpose. Check out the date and time in the upper left corner.
 

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aim4squirrels

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No. They’re stationary so far. As in sitting still while in use.
They have to focus the camera. The ones they use here are very high resolution and filtered. So high that you can almost read the SRT on my rims when I was testing the NoPhoto system a couple of years ago.

I was going 63 in a 50 km zone on purpose. Check out the date and time in the upper left corner.
I'm more concerned about the UFO in the tree line in that photo...
 

Heywood

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I'm more concerned about the UFO in the tree line in that photo...
It’s so heavily filtered..... that’s the sun. It’s near summer salsas at 8:45 pm late in June. Lol.

That’s how far north the sun is up here at 51° latitude and why it never gets really dark during the summer.

To be fair, it was a little overcast.

Good one though. Made me laugh out loud when I read it. Lol.
 

Brainstorm69

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Supposedly CVS door op
It’s so heavily filtered..... that’s the sun. It’s near summer salsas at 8:45 pm late in June. Lol.

That’s how far north the sun is up here at 51° latitude and why it never gets really dark during the summer.

To be fair, it was a little overcast.

Good one though. Made me laugh out loud when I read it. Lol.
That what they all say! :laugh:
 

CarefulDriver

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No. They’re stationary so far. As in sitting still while in use.
They have to focus the camera. The ones they use here are very high resolution and filtered. So high that you can almost read the SRT on my rims when I was testing the NoPhoto system a couple of years ago.

I was going 63 in a 50 km zone on purpose. Check out the date and time in the upper left corner.
Interesting, how did you protect your license plate from getting on the photo?
 

Heywood

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Interesting, how did you protect your license plate from getting on the photo?
I bought a radar detector that was MRCD capable and slow down for the 200 yards around the traps.
-- Double Post Merged: --
Looks like the no-photo didn't work well enough. Bummer.
It did work on a Mesta Fusion camera as far as I know. Unless it was in testing mode as it was just put up October 2018. I have one in my truck a blew through a newly installed Mesta. I was doing 90 in a 70 zone.

No ticket issues. Here’s some pictures from my dash cam
 

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awyeah2

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I have a theory based on zero science, only observation.

It seems to happen to me the most when there are several relatively weak K-band signals around.
 

CarefulDriver

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I have a theory based on zero science, only observation.

It seems to happen to me the most when there are several relatively weak K-band signals around.
Yeah MRCD has 4 channels, 4 different K-band frequencies, so when two or maybe even one of those frequencies is triggered, it might trigger MRCD alert. This might be a good thing because there is no guarantee that all 4 frequencies will be detected at once.
 

awyeah2

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Yeah MRCD has 4 channels, 4 different K-band frequencies, so when two or maybe even one of those frequencies is triggered, it might trigger MRCD alert. This might be a good thing because there is no guarantee that all 4 frequencies will be detected at once.
Interesting. Is this actually documented anywhere? I’d like to learn more of the details.
 

Heywood

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Interesting. Is this actually documented anywhere? I’d like to learn more of the details.
Usually it’s propriety information that the manufacturers do not give out, but it’s out there.
 

mikeoxlong

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My R3 gives false MRCD indications at a lot of rural intersections. Typically there will be a small 3" square box mounted on one of the lights that triggers it. As far as I can tell, the box is used to detect when there is traffic waiting at the light.

I turned off MRCD but still get a K band warning.
 

Heywood

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Satellite dishes can create false’s as well.

In rural areas, where there is no cable, some places use a FM transmitter system for Internet service.

Not saying that’s the issue, but a possibility.
 

awyeah2

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Satellite dishes can create false’s as well.

In rural areas, where there is no cable, some places use a FM transmitter system for Internet service.

Not saying that’s the issue, but a possibility.
Interesting. I wonder if any of these point-to-point links operate in the 24ghz range?
 

croup

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Some new kind of traffic sensors mounted a couple of months back on Hwy 11 around these parts made MRCD on my R3 go crazy...Saw a picture on here about a month back that looked just like them but can't seem to locate the thread...
 

SensysGG

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Some cars can cause MRCD false’s. The MR stands for Multi Radar. It’s in the K band spectrum. Even in the Radenso’s, there are some vehicles that will cause MRCD falses. Ford Platinum Trim models.
Toyota Highlanders
Subaru Outbacks with the eye.
Newer Nissan Rogues.
Just a few.
In our neck of the woods it’s most likely Nissan Qashqai or Toyota C-HR.
 

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