TXCTG – V1G2 vs R7 Ka 34.7 and K-band - Van Alstyne – 05-02-2020

croup

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I forgot to push back profile and turn KV back on for the drive home today from work...that was quite the fun...just like your video...
 

LouG

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@OBeerWANKenobi and @LouG - The 40% setting was used to get us some data points to try to confirm that R7 at K=40% with all filters on is about equivalent to K-band sensitivity of V1G2 in A mode, given previous testing indicated K=30% on the R7 was a bit less sensitive.


You definitely have a different driving environment than we in the US have. Some in rural areas may be able to use the V1G2 with KV off, but for those that live in the city, not really an option. For example, here's some video of the V1G2 on the road in the city when I forgot I had been bench testing with KV off, and didn't turn it back on.


OK, that's clear.
Yes, we're different. But I couldn't run KV off in urban areas either, and probably not on highways near major cities. But I should try and see how bad it is.
One benefit of living in a smaller place.
 

Vancity23

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TeamQuack

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I can just imagine Mike V. working on this v1g2, he def must have run an r7 through his testing facility and studied it carefully before he unleashed the new beast. i “saw” this months before the release but hey i’ll be the crazy one ;)

This test isn’t an anomaly, this will be the new norm (just my 2 cents). Nice work!
 
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DC Fluid

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When I tested with the Bushnell Velocity, R7 against Pro-M, 9500ix, Max II, I found R7 K 40% to equal the best detections of all those detectors set for maximum highway K reception.
40% is my standard K setting for around the city now, I use highway on open highway driving, and city for really polluted bigger city areas.

It seems to me that the R7 at 40% equals the standard legacy K band range that most brands haven't increased in a decade.
Now I'm seeing K band appearing all over British Columbia.
The R7 shines picking these out in my mountainous, treed terrain.

@Brainstorm69 I had to Google chiggers now I'm creeped out.
There is always an upside to living in the north, I shovelled the last of a snowbank off the lawn while you were testing, and no mosquitoes yet.
Chiggers....:derp:
 

Brainstorm69

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When I tested with the Bushnell Velocity, R7 against Pro-M, 9500ix, Max II, I found R7 K 40% to equal the best detections of all those detectors set for maximum highway K reception.
40% is my standard K setting for around the city now, I use highway on open highway driving, and city for really polluted bigger city areas.

It seems to me that the R7 at 40% equals the standard legacy K band range that most brands haven't increased in a decade.
Now I'm seeing K band appearing all over British Columbia.
The R7 shines picking these out in my mountainous, treed terrain.

@Brainstorm69 I had to Google chiggers now I'm creeped out.
There is always an upside to living in the north, I shovelled the last of a snowbank off the lawn while you were testing, and no mosquitoes yet.
Chiggers....:derp:
Sound like good settings to me.

And chiggers, yeah, they're the worst. Their bites itch like the dickens for several days and take a couple of weeks to go away completely. And you don't usually get just a few bites, it's usually a lot if you get into any tall weeds. Chigger season is just starting, so I'm not likely to go into the weeds anymore this spring/summer.
 
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Alfa38

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And chiggers, yeah, they're the worst. Their bites itch like the dickens for several days and take a couple of weeks to go away completely. And you don't usually get just a few bites, it's usually a lot if you get into any tall weeds. Chigger season is just starting, so I'm not likely to go into the weeds anymore this spring/summer.
When I saw the photo with your gun placement, first thing I thought was, oh boy he must have gotten eaten alive. We're just south of your testing area, and with any work in the yard I seem to end up with them.
 

DrHow

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As you know, the Bushnell is powered by two C batteries. Both are at 1.48v tested just now. The Stalker was powered by its battery handle that had been charging for several hours before I went testing. It's still at 7.75v tested just now after sitting for two days since the testing.

I don't think there were any weak battery issues, if that's what you are getting at.
Static battery test voltage, or under load for 20 minutes? As you know, battery testers that show idle voltage don’t simulate under load condition.

This could have affected either device. Likely the last test group.
 

milkman

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Sound like good settings to me.

And chiggers, yeah, they're the worst. Their bites itch like the dickens for several days and take a couple of weeks to go away completely. And you don't usually get just a few bites, it's usually a lot if you get into any tall weeds. Chigger season is just starting, so I'm not likely to go into the weeds anymore this spring/summer.
Lucky me, the chiggers do not bother me. I guess I am to sour or to old or probably both. P.S. while you were out, did you look for any mushrooms?
 

DrHow

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On Ka band they are very close but from the results on K band the R7 is being neutered to 40% for the G2 to keep up in all bogies mode. Wait until you run in in advanced logic mode.

I think the G2 is better off-axis on 35.5 and maybe even on 34.7 if the range difference is because the gun was angled more in this test than the previous one. Anecdotally, I'd agree with that assessment as far as 35.5 is concerned as it seems to me that in the real world, I'm getting better off-axis performance with the G2 than the R7.

I'm going to have to get out, set up a course and do some distance testing myself.

I'm really liking the G2 a lot with JBV1 and if they'd fix a few of the issues it's gonna take the place of the R7 on my windshield most of the time. That being said, I don't face much K band in my home area. If I did, I'd go R7 right now because I'm forced to run the G2 in advanced logic mode to kill my cars BSM. My R7 just needs to run at Advanced 50% to do that. I do get more false alerts from the R7 at 50% than the G2 in advanced logic but I think I could run the R7 on city mode and be about as quiet with similar or better range.
If you ever get to Cincinnati, schedule a visit to VR. Have them measure you vehicle for BSM infiltration the G2 sees. They might be able to do something about it (amd other examples). Or, if JBV1 has logs of any BSM burn through, maybe that would help them. In the past they have been open to measuring something they have not seen before. Just a thought.
Post automatically merged:

When I tested with the Bushnell Velocity, R7 against Pro-M, 9500ix, Max II, I found R7 K 40% to equal the best detections of all those detectors set for maximum highway K reception.
40% is my standard K setting for around the city now, I use highway on open highway driving, and city for really polluted bigger city areas.

It seems to me that the R7 at 40% equals the standard legacy K band range that most brands haven't increased in a decade.
Now I'm seeing K band appearing all over British Columbia.
The R7 shines picking these out in my mountainous, treed terrain.

@Brainstorm69 I had to Google chiggers now I'm creeped out.
There is always an upside to living in the north, I shovelled the last of a snowbank off the lawn while you were testing, and no mosquitoes yet.
Chiggers....:derp:
In loose ad hoc examination (not formal testing) I found my R7 not to be linear for the “%” rating. 70% is more like 85+%, 50% is more like 75%, 30% is more like 65-70+% of max K range. I guess someone could go back and see if any testing that has distances on K verses “%” are linear. Mine does not seem like it. I have spent ton of time tweak testing to find ideal balance of BSM filtering and K band which is heavy around here. This work triggered by observations. I like the R7 and want to use it without getting annoyed at BSM.

Anyway, let’s not assume for the moment my R7 percentage means that ”40%” is a 60% discount off range for K band. No way does R7 take a 70% rsnge haircut when I run 30% (or 60% haircut on range for 40% setting). 50% haircut on setting is not a 50% reduction of range.

some of us might get the sales impression that “wow, imagine if I could run 100% on R7...? Maybe one day this superior detector will beat all folks on K...” type of thinking.
 
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DC Fluid

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If you ever get to Cincinnati, schedule a visit to VR. Have them measure you vehicle for BSM infiltration the G2 sees. They might be able to do something about it (amd other examples). Or, if JBV1 has logs of any BSM burn through, maybe that would help them. In the past they have been open to measuring something they have not seen before. Just a thought.
Post automatically merged:


In loose ad hoc examination (not formal testing) I found my R7 not to be linear for the “%” rating. 70% is more like 85+%, 50% is more like 75%, 30% is more like 65-70+% of max K range. I guess someone could go back and see if any testing that has distances on K verses “%” are linear. Mine does not seem like it. I have spent ton of time tweak testing to find ideal balance of BSM filtering and K band which is heavy around here. This work triggered by observations. I like the R7 and want to use it without getting annoyed at BSM.

Anyway, let’s not assume for the moment my R7 percentage means that ”40%” is a 60% discount off range for K band. No way does R7 take a 70% rsnge haircut when I run 30% (or 60% haircut on range for 40% setting). 50% haircut on setting is not a 50% reduction of range.

some of us might get the sales impression that “wow, imagine if I could run 100% on R7...? Maybe one day this superior detector will beat all folks on K...” type of thinking.
Never did assume 50% means half the range.
Merely noting that 40% setting with filters on seems equal to the detectors mentioned at 100% Highway sensitivity, filters low or off.
A comparison leap could be made that the V1G2 is very similar on K as previous detectors, and didn't come with the increased levels of sensitivity that it now shows on Ka bands.
IMO, the K band is pretty good on all detectors, but love the option to go Extreme Range on the R7 when conditions allow.
 

LouG

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What on earth is a chigger? Another creepy crawly we've missed out on?
We just get sandflies, big ones that take a pint at a time and carry off little kids.
 

Riptide

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What on earth is a chigger? Another creepy crawly we've missed out on?
We just get sandflies, big ones that take a pint at a time and carry off little kids.
Reallllly small red arachnids that leave nasty bites on your ankle that itch like crazy.
 

InsipidMonkey

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In loose ad hoc examination (not formal testing) I found my R7 not to be linear for the “%” rating. 70% is more like 85+%, 50% is more like 75%, 30% is more like 65-70+% of max K range. I guess someone could go back and see if any testing that has distances on K verses “%” are linear. Mine does not seem like it. I have spent ton of time tweak testing to find ideal balance of BSM filtering and K band which is heavy around here. This work triggered by observations. I like the R7 and want to use it without getting annoyed at BSM.

Anyway, let’s not assume for the moment my R7 percentage means that ”40%” is a 60% discount off range for K band. No way does R7 take a 70% rsnge haircut when I run 30% (or 60% haircut on range for 40% setting). 50% haircut on setting is not a 50% reduction of range.
Based on the dB reductions provided by Uniden, the percentages should pretty closely match predicted range reductions compared to Highway mode (or 100%): https://www.rdforum.org/threads/66080/
This has been nicely demonstrated by some of the non-terrain limited testing done by the TXCTG (links in thread above).
 

DC Fluid

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Screenshot_20200505-165448.png


This belongs in the creep me out thread.
Wait until I tell the wife : THEY'RE EVERYWHERE!
 

DrHow

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Based on the dB reductions provided by Uniden, the percentages should pretty closely match predicted range reductions compared to Highway mode (or 100%): https://www.rdforum.org/threads/66080/
This has been nicely demonstrated by some of the non-terrain limited testing done by the TXCTG (links in thread above).
I went back and read comments from the R3 Post (not R7) in 2017. Plus went to a post placed by Sarge. Early R3s are not R7s. There could be difference. plus, the Sarge post had many comments to back up what he said (and using same/other percentage cut back):

“Took some time behind the windshield. Trips to San Antonio/Austin/Dallas.
Reading the forum here on K Band testing (Thanks @patscogs)
Got this beast tame I believe.
ADV mode
K filter on
K narrow
K 40%
Quiet ride @ 30mph
Really quiet and I just fail to see I have lost K Band reach. If I have it is not much at all.
I have realized (duh) that reducing sensitivity is not reducing range. In other words I dont get 40% of the range I get 40% of the sensitivity. You get a full powered Fudd K gun 40% sensitivity will still alert about the same range as 100%. Off axis is effected more but I can live with that.
Got a Comal County Fudd shooting K Band I/O today. Picked him up well over a mile around a curve and down a hill.
My old faithful K Band speed sign in Bergheim alerts about the same spot when running 100% K Band.
Even @ 40% the R3 smokes the Escort S55 on K Band. By a bunch.
I have to get right on the BSM offenders butt to get a punch through. Back off a bit and it is quiet again.
Ka band is 100%. It remains a beast there.
I dont run RLC/Laser or any of that crap. I dont know if that has any effect on range or performance but just FYI.
Just sharing my final setup....working very well.”

Street reports back then suggested that no way they experience say a 16,900’ warning getting cut back to 2900‘ (one example in the chart.).

In the end, do we really know how the R7 does things know that relates to street range reduction? My street experience with my R7, it is not linear alert experience to the “percentage“ of cut.

I appreciate your math and detail in your post. Thank you.
 
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