This is why I dont trust my R7

Brainstorm69

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You have a giant organized bag full of them. Should be easy to test some. :) I’d do like that bag.
@DrHow - Didn't you see where I did?

 

Kennyc56

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Nice video @Kennyc56! It highlights a few interesting points I've noticed running the R7 and V1 as daily drivers in two different cars.

1. Limited Dynamic Range I think the poor ramp up and "arrow confusion" seen with the R7 are due to a lack of dynamic range in resolving signal strength. In your video, you can see the R7 reaches maximum signal strength as soon as you come on axis to the radar gun, and begins to exhibit "arrow confusion" well before reaching the source. It's clear the detector can't distinguish between a very strong signal at the front horn and a reflection being received at the rear horn, as once the signal reaches a certain signal strength it can no longer tell how strong it is. It's possible they could tweak the relationship between received signal strength and indicated signal strength on the detector to improve the ramp up, but I don't think they can resolve the signal saturation problem with the current hardware.

I had a 34.7 encounter approaching a LEO with a customer on a straight section of highway where the R7 was at maximum signal strength(8 "dots") 1.5 miles from the source, and a 35.5 encounter where the detector was maxed out 1 mile from the source. If a detector can't provide an informative ramp up or accurate arrows, it can make it hard to actually locate the source of the alert.

2. Sensitivity Between Detectors I think it's interesting that the V1 starts to alert as soon as the R7 gets to between one and two "dots" signal strength, both approaching the source from ahead and behind. I'd like to do some more testing under controlled conditions (running each detector independently) to see whether that holds up, because it would make it easier to estimate the advanced notice you'd get with one detector over another during real world encounters.
I agree. My take on the R7 after playing with 2 of them now is that in a rural area they are great, but I can see that in an urban area the way the arrows dance around would get crazy with all of the reflections going on. There is no comparison between the R7 and the V1 when it comes to their ramps, that's for sure! The V1 wins hands down!
 

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as i suspected, total hype from a speed sign.

you know what the problem is? People using a rd and expecting the same performance every time.

it just doesn’t make sense. Radar units are directional, so there is a stronger signal in the direction it is facing bc thats where the microwaves are being released to reflect off of approaching or receding vehicles.

If the radar is not in the same direction as the r7, you will get a shorter alert than if the radar signal was pointed in the same direction as the detector.

That explains why when people pass leo’s they get a strong rear alert sometimes, it has to do with the direction of their radar unit, NOT THE DIRECTION OF THE LEO’s VEHICLE.

some leo’s have front and rear radar so therefore an leo whos car is facing your direction (with the leo physically looking at you) but running rear radar you will not get a strong signal. the leo is perhaps monitoring the other side of traffic.

i had this encounter yesterday and all i was thinking, was that if it was another member from here they would have said their r7 is broken.

the bottom line is that it detects radar signal, not leo cars. most times when your being targetted, their radar will be aiming in your direction so therefore you will get superb range, but what you encounter in reality is random...

so some may experience these type of alerts and think their r7 is godly while others freak out over odd frequency speed signs and poor range from radar units which aren’t facing their direction.

tbh, i think people are having a hard time and have unrealistic expectations bc of its price. If it was $200 nobody would care imo.
 
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HyperM3

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as i suspected, total hype from a speed sign.

you know what the problem is? People using a rd and expecting the same performance every time.

it just doesn’t make sense. Radar units are directional, so there is a stronger signal in the direction it is facing bc thats where the microwaves are being released to reflect off of approaching or receding vehicles.

If the radar is not in the same direction as the r7, you will get a shorter alert than if the radar signal was pointed in the same direction as the detector.

That explains why when people pass leo’s they get a strong rear alert sometimes, it has to do with the direction of their radar unit, NOT THE DIRECTION OF THE LEO’s VEHICLE.

some leo’s have front and rear radar so therefore an leo whos car is facing your direction (with the leo physically looking at you) but running rear radar you will not get a strong signal. the leo is perhaps monitoring the other side of traffic.

i had this encounter yesterday and all i was thinking, was that if it was another member from here they would have said their r7 is broken.

the bottom line is that it detects radar signal, not leo cars. most times when your being targetted, their radar will be aiming in your direction so therefore you will get superb range, but what you encounter in reality is random...

so some may experience these type of alerts and think their r7 is godly while others freak out over odd frequency speed signs and poor range from radar units which aren’t facing their direction.

tbh, i think people are having a hard time and have unrealistic expectations bc of its price. If it was $200 nobody would care imo.
If you go back to my actual post, it wasn't about range, it was about the wacky arrow behavior. I never complained about range. Nice post though.

Sent from my Pixel 3 XL using Tapatalk
 

BlueV1

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Hype or not; @HyperM3 spent time trying to figure out what is going on and was willing to send it to someone. I don't think we are done figuring out what the total issue is yet.
 

Kennyc56

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Hype or not; @HyperM3 spent time trying to figure out what is going on and was willing to send it to someone. I don't think we are done figuring out what the total issue is yet.
I got a killer 34.7 encounter with my R1/Redline combo along with his R7! The arrows worked perfect again. Once again, this was in a rural area. I will post the video when I get home tonight. I don't think this is about hype at all. I've had it light the rear arrow a couple of times first during a head on encounter that didn't make sense, I just haven't caught it on video yet,
 
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TeamQuack

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I forgot to add:

I need real v1 users to step up here.

I’ve used a v1 for over 10 years.

The arrows on the v1 go crazy sometimes. I had to have been on of the first people to use a v1 in nyc in the early 2000’s bc before the apps, everyone complained about it’s false alerts and said it was not usable in the city. I changed that. I had members from all around asking me for help with their v1 and i kindly helped and pushed the idea that the v1 can be used in any city once it is programmed correctly.

I actually had mine programmed with the k mute options (had a sticky on Roys site about it back in 2006ish).

but in all my years with my beloved v1, the arrows accuracy has never been perfect in these tight, urban areas which bounce radar signals all over the place. the r7 arrows are functional and SOME of the problems people are experiencing with arrows simply cannot be fixed. Having 2 horns has its benefits but there are also detriments, this is one but most people can live with it.
 

GTO_04

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I forgot to add:

I need real v1 users to step up here.

I’ve used a v1 for over 10 years.

The arrows on the v1 go crazy sometimes. I had to have been on of the first people to use a v1 in nyc in the early 2000’s bc before the apps, everyone complained about it’s false alerts and said it was not usable in the city. I changed that. I had members from all around asking me for help with their v1 and i kindly helped and pushed the idea that the v1 can be used in any city once it is programmed correctly.

I actually had mine programmed with the k mute options (had a sticky on Roys site about it back in 2006ish).

but in all my years with my beloved v1, the arrows accuracy has never been perfect in these tight, urban areas which bounce radar signals all over the place. the r7 arrows are functional and SOME of the problems people are experiencing with arrows simply cannot be fixed. Having 2 horns has its benefits but there are also detriments, this is one but most people can live with it.
Yes, my V1 does that too in congested urban areas. I consider that normal behavior and NOT a problem.

GTO_04
 

GotWake

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as i suspected, total hype from a speed sign.

you know what the problem is? People using a rd and expecting the same performance every time.

it just doesn’t make sense. Radar units are directional, so there is a stronger signal in the direction it is facing bc thats where the microwaves are being released to reflect off of approaching or receding vehicles.

If the radar is not in the same direction as the r7, you will get a shorter alert than if the radar signal was pointed in the same direction as the detector.

That explains why when people pass leo’s they get a strong rear alert sometimes, it has to do with the direction of their radar unit, NOT THE DIRECTION OF THE LEO’s VEHICLE.

some leo’s have front and rear radar so therefore an leo whos car is facing your direction (with the leo physically looking at you) but running rear radar you will not get a strong signal. the leo is perhaps monitoring the other side of traffic.

i had this encounter yesterday and all i was thinking, was that if it was another member from here they would have said their r7 is broken.

the bottom line is that it detects radar signal, not leo cars. most times when your being targetted, their radar will be aiming in your direction so therefore you will get superb range, but what you encounter in reality is random...

so some may experience these type of alerts and think their r7 is godly while others freak out over odd frequency speed signs and poor range from radar units which aren’t facing their direction.

tbh, i think people are having a hard time and have unrealistic expectations bc of its price. If it was $200 nobody would care imo.
Yeah, I think people expect their RD to perform exactly the same no matter what. I've seen some funky stuff with the arrows on my R7. One time, it may nothing behind me reflecting and the leo is only using his front antenna which is point away from me. The next time I may be in town with cars and buildings all around me and the arrows don't know which way it's coming from.

One time, I did think my rear antenna wasn't working properly and did a reset. It was more than likely working fine and has ever since.

It's a good idea to get a second opinion and let another member test it to confirm.
 

BlueV1

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Agreed. A V1 can get confused. Less likely than what we are seeing with the R7s currently.

I've got an interesting log of alerts recently that were due to a hidden LEO with front and rear antennas. He took down a vehicle that blindly passed me at 20 over PSL.
There's a few false arrow flips depending on which LEO antenna you focus on.
 

GotWake

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I really don't know how you would ever get "perfect" arrows anyway. Close up, you are going to get some strong reflects and there's just no way that a RD is going to know where it's coming from if both front and rear horns are seeing almost the same signal. And really, up close this just isn't that important. You should already know the LEO's position when you are meeting him. The important thing is knowing that guy is 1/2 mile back behind you.
 

BlueV1

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Those arrows can really be helpful though when you can't find an LEO. The transition when accurate can really be useful.
 

G39x

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There are some circumstances where my R7 get confused, but they are kind of expected confusions. One time I got a signal behind me and I pulled to the side behind a semi and then the arrows changed to the front, but when I checked my side mirror after a few seconds, I saw the LEO, the signal was bouncing straight from the back of the semi. I wonder if @Kennyc56 radar gun was bouncing off some of the objects around the area. However, I will say, if there are a lot of things around the LEO, the arrows are spot on for me until when I am really close to the LEO and then it just bounces all around because the detector cannot decipher from the strong signal because of the high sensitivity of each horn. Once again, I think either a smarter logic or changing sensitivity on the rear horn will resolve the issue.
 

RayC

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Went by the OP's speed sign this morning. Had to record it on my phone as my dash cam doesn't get the RD in the pic. Anyway, can't upload the video so there is that. Here is a screenshot of the R7 with the speed sign I believe the OP is referring to facing directly towards me as I approach it. The video has all kinds of wacky arrow behavior even showing it in front of me after I pass it and behind me initially as it first alerts. There wasn't any cars behind me and the speed signs in general from my experience are not of any value in testing RD performance but that is just one opinion.
speed sign r7.png
 

Brainstorm69

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Went by the OP's speed sign this morning. Had to record it on my phone as my dash cam doesn't get the RD in the pic. Anyway, can't upload the video so there is that. Here is a screenshot of the R7 with the speed sign I believe the OP is referring to facing directly towards me as I approach it. The video has all kinds of wacky arrow behavior even showing it in front of me after I pass it and behind me initially as it first alerts. There wasn't any cars behind me and the speed signs in general from my experience are not of any value in testing RD performance but that is just one opinion.View attachment 131890
Thanks for this. Are there any likely reflectors behind you in this shot at all? I know you said no cars, but anything else? Also, did you try coming at it from the other direction to see if you got any weird forward alerts after you passed it?
 
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InsipidMonkey

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Went by the OP's speed sign this morning. Had to record it on my phone as my dash cam doesn't get the RD in the pic. Anyway, can't upload the video so there is that. Here is a screenshot of the R7 with the speed sign I believe the OP is referring to facing directly towards me as I approach it. The video has all kinds of wacky arrow behavior even showing it in front of me after I pass it and behind me initially as it first alerts. There wasn't any cars behind me and the speed signs in general from my experience are not of any value in testing RD performance but that is just one opinion.View attachment 131890
That's weird you're only at 3 dots signal strength that far from the sign. Are you sure that's the source? If so, maybe something weird is going on where the front horn is filtering out the speed sign but the rear horn is picking up a reflection? I haven't seen this with mine, but others have certainly reported it before. Maybe try reflashing the firmware in recovery mode to see if anything changes?
 

Magneto

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Thanks for this. Are there any likely reflectors behind you in this shot at all? I know you said no cars, but anything else. Also, did you try coming at it from the other direction to see if you got any weird forward alerts after you passed it?
Those cars in the other lane going in the opposite direction could be behind him. With curved surfaces I would think you could easily get reflections come back to the back horn. But it would seem that what lies ahead should be a stronger signal.
 

RayC

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That's weird you're only at 3 dots signal strength that far from the sign. Are you sure that's the source? If so, maybe something weird is going on where the front horn is filtering out the speed sign but the rear horn is picking up a reflection? I haven't seen this with mine, but others have certainly reported it before. Maybe try reflashing the firmware in recovery mode to see if anything changes?
Thanks for this. Are there any likely reflectors behind you in this shot at all? I know you said no cars, but anything else? Also, did you try coming at it from the other direction to see if you got any weird forward alerts after you passed it?
Actually I did come at this one from the other direction last week. In that case I only got the rear arrow alert and no front signal as I got near it. These signs are super low powered for sure. I did compress the video file so you can see the arrows are confused all the time. This particular sign and some others elsewhere always behave oddly. I don't see this on a real K threat though. The video is pretty crappy as I had to hold the phone and drive but it shows the arrows and how they get confused. I don't see how any reflection can be stronger than when you are facing the sign straight up. Not sure if this low powered K frequency just doesn't get processed well by the R7 more than anything. If this was a real K threat I would have picked it up way sooner and no way the initial arrow alert would be from the rear. No alert sound as I locked out this sign a while back.

I should note I am running "city" mode with K filter on so perhaps there is some bad logic. Regardless in City mode on K band for real threats the range is sometimes over a half mile or more even with lots of houses and trees and such and some off axis as well.
 
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InsipidMonkey

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Actually I did come at this one from the other direction last week. In that case I only got the rear arrow alert and no front signal as I got near it. These signs are super low powered for sure. I did compress the video file so you can see the arrows are confused all the time. This particular sign and some others elsewhere always behave oddly. I don't see this on a real K threat though. The video is pretty crappy as I had to hold the phone and drive but it shows the arrows and how they get confused. I don't see how any reflection can be stronger than when you are facing the sign straight up. Not sure if this low powered K frequency just doesn't get processed well by the R7 more than anything. If this was a real K threat I would have picked it up way sooner and no way the initial arrow alert would be from the rear. No alert sound as I locked out this sign a while back.

I should note I am running "city" mode with K filter on so perhaps there is some bad logic. Regardless in City mode on K band for real threats the range is sometimes over a half mile or more even with lots of houses and trees and such and some off axis as well.
View attachment 131897
That's weird. I'm sure it's already been said in this thread, but most speed signs are modulated in order to do traffic studies, so it's certainly possible the detector is actively trying to filter it out.

From your video it seems like filtering is not being applied the same to both horns, so while the front horn is filtering the speed sign as you approach the rear horn is not filtering out the weaker reflections. Once you get closer, the signal "punches through" the filter on the front horn, and the arrows switch to the front. I don't know why the detector holds only the front arrow after you pass the sign, maybe some issue with the arrow logic when filtering is involved?

There are two different DSPs with different specs in the R7, and they seem to be laid out so one DSP processes the signals from the front horn and one from the rear horn. Maybe the difference in processing power explains the difference in filtering seen between the front and rear horns? It would be nice to get some clarification from Uniden on how the DSPs are used.
 

DrHow

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I still suggest that Uniden handles the various filtering AND advanced attenuation settings differently with the front antenna than the rear. With all the filtering on and 30% advanced, to me, my R7 has better K band range from the rear antenna. Which affects arrow reports on K band. Also, I get BSM reports from rear that don’t show up on the front when passing by the BSM offender. Not complaining. Just saying this is what I experience.

on Ka, the arrows are more accurate on my R7.

maybe this idea is nuts. I wish @Uniden Would let us know relating to my idea above. How does the R7 platform adjust the settings (advanced, TSF/TSR, K block, narrow/wide, etc) related to both antenna? Maybe I have a device with bad QC. It did well related to range in the published tests the other month.

thoughts?
 

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