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

DChiJEllis

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Great testing as per usual.
 

Kennyc56

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Thanks @Kennyc56. When are you and @VariableWave going to get some testing done and posted? I'm interested to see the results since both of you seem to have really hot V1G2s.
@VariableWave and I tested for hours yesterday, but it was with my TMG rear heads. My front heads have worked great but my rear heads not so much. Yesterday we started pretty much from scratch and remounted them with the brackets instead of just sticking the heads to the rear bumper so we could really dial in the angles and boy it made one hell of a difference! When he is shooting me from the right side in the back, I got several repeatable JFG's against his mighty DE after all of the struggles we've had! From the left side, we're down to 250'! From then on out we're JFG as well! you would not believe how much difference even the smallest adjustments can make! As far as our testing the V1G2, your results are so close to ours that we probably won't test them again until we can get a firmware fix for the ramp issue. Our V1g2's are also better than his R7 and all of our R1's,3's, and Redline-O's on both 34.7 and 35.5 by the same amount that you are showing. We still haven't really done anything with K band as of yet. Both of our V1G2's are killers on 35.5 and they will both pull an out of this world rear 35.5 alert from time to time! BTW, I'm still just running the G2 heads [quads] and CPU, not the VPR setup yet.
 
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OBeerWANKenobi

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Thanks for the testing!

I'm curious about the 34.7 results as well. I wonder if it's an off-axis thing. Maybe one of the detectors is a little better off axis. Was the gun more angled or less angled today than the last test?

Thanks so much for the test results! Still seems like the V1g2 hits that sweet spot in the market of people who don't really see that much K band or MRCD but are sick and tired of K band falses. It brings great Ka band performance which is 99% of what I encounter.

I think this is pretty close to how it will shake out. With an app, it's going to take the place of the ProM and Escort Max 360c IMHO. If VR does a bit more work on the K band side along with fixing the few issues we are noticing, it's a "horse a piece" whether you go for the R7 or V1G2 with an app except for those in the need of the greatest K band sensitivity.

Combined with the above fixes, if VR can keep it pretty quiet but crank up the K sensitivity (I'm pretty sure they can with filter changes or giving us user options to toggle certain filtering on and off), it may just edge the R7 as the most universally recommended detector, once again, if you want to use an app.
 
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Brainstorm69

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Good stuff and thanks for your time put into the testing! At least gas is cheaper now!!

LOL. Yeah, with my $1.00/gallon discount from buying groceries, filling up yesterday only cost me $4.05. I can't remember how long it's been since it only cost that.
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Thanks for the testing!

I'm curious about the 34.7 results as well. I wonder if it's an off-axis thing. Maybe one of the detectors is a little better off axis. Was the gun more angled or less angled today than the last test?



I think this is pretty close to how it will shake out. With an app, it's going to take the place of the ProM and Escort Max 360c IMHO. If VR does a bit more work on the K band side along with fixing the few issues we are noticing, it's a "horse a piece" whether you go for the R7 or V1G2 with an app except for those in the need of the greatest K band sensitivity.

Combined with the above fixes, if VR can keep it pretty quiet but crank up the K sensitivity (I'm pretty sure they can with filter changes or giving us user options to toggle certain filtering on and off), it may just edge the R7 as the most universally recommended detector, once again, if you want to use an app.

It was angled more, but was using my Stalker ATR vs. a Python II gun tuned to 34.7. The ATR really puts out the signal.
 
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87GN

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I own a V1.2, a R7, R3, and a Max360c. The V1.2 is a beast on 34.7 and 35.5, which is what I see on a regular basis. 34.7 for the Sheriffs and TX DPS. 35.5 is for my local PD and locals along my 133 mile route to work. Max360c is perfect for local encounters and good on the highway. R7 is a lilbit chatty in town and beast mode on highway. I do see K band on highway. V1.2 is very quiet in town and also a beast on the highway. I could run either R7 on the road or V1.2 on the road. Ramp up on the highway is aggressive on R7. Chill on the V1, but I drop the anchor on first alert always. If V1.2 can fix the lax ramp up on the V1.2, it'll be my full time detector. IMHO the R7 or V1.2 will get the job done! R7 has a small advantage for Highway K band encounters.
 

croup

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As always your time and effort testing and sharing is greatly appreciated....

Couple of questions

Commentary K-Band


  • Based on previous testing, I was pretty sure that it would take about K=40% on the R7 to equal A Mode on the V1G2 when it comes to K-band. And it looks about right based on this test.

1. Just to be sure I am understanding, the R7 is only at 40% K sensitivity and equals the V1G2 in range in A Mode K Ver On No CF?

2. If so, on this particular course, not sure how long it is, how far could the R7 pick up the signal on 100% sensitivity.

3. I have noticed no range gain on the V1G2 with K Ver Off with my course being limited. Have you been able to see any difference with K Ver Off on a longer course?
 

Brainstorm69

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As always your time and effort testing and sharing is greatly appreciated....

Couple of questions

Commentary K-Band


  • Based on previous testing, I was pretty sure that it would take about K=40% on the R7 to equal A Mode on the V1G2 when it comes to K-band. And it looks about right based on this test.

1. Just to be sure I am understanding, the R7 is only at 40% K sensitivity and equals the V1G2 in range in A Mode K Ver On No CF?

2. If so, on this particular course, not sure how long it is, how far could the R7 pick up the signal on 100% sensitivity.

3. I have noticed no range gain on the V1G2 with K Ver Off with my course being limited. Have you been able to see any difference with K Ver Off on a longer course?

1. Just to be sure I am understanding, the R7 is only at 40% K sensitivity and equals the V1G2 in range in A Mode K Ver On No CF?

Correct.

2. If so, on this particular course, not sure how long it is, how far could the R7 pick up the signal on 100% sensitivity.

Probably at the start of the course, 3.02 miles, but didn't test it, so can't say for sure. Before that, the road is below a hill that blocks the signal.

3. I have noticed no range gain on the V1G2 with K Ver Off with my course being limited. Have you been able to see any difference with K Ver Off on a longer course?

I have not done any testing of the V1G2 against K-band with KV off. Maybe will try that next time.
 

croup

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Having so many K bogeys around me I am looking for any way to increase range and reactivity....Just noticed another dang 3 new unmarked vehicles this weekend added to my area and you guessed it all K band...….JBV1 makes it easy for me in the morning to flip to KV off but still not even sure I am accomplishing squat by doing so......

Any thoughts, other than a longer course, you might suggest I can try to help me find out if K Ver is accomplishing anything....My testing gear is getting cold just sitting around....

K band equip at my disposal to aid in this quest

Decatur Genesis l
MPH Python ll
Raptor Rp-1
Falcon HR
 

DrHow

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Were the radar units powered by large auto batteries? Or better way to ask.. How were they powered?

Nice work.
 

Brainstorm69

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Were the radar units powered by large auto batteries? Or better way to ask.. How were they powered?

Nice work.

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.
 
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JustinP

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I'm curious about the 34.7 results as well. I wonder if it's an off-axis thing. Maybe one of the detectors is a little better off axis. Was the gun more angled or less angled today than the last test?

That was my hunch as well. The sensitivity of both detectors is superb, but slight differences in horn geometry etc will have them swapping places in test results when guns are angled differently.
 

LouG

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So they were effectively identical. It would be good to see an unfiltered K test. I've seen 50% more range on Redflex with KV off.
300 metres as against 200. Significantly, I saw minimal falsing driving 30 km's home on a rural highway with KV off.
But hat's with K band CF's that cuts off freqs over 24.110.
 

OBeerWANKenobi

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So they were effectively identical. It would be good to see an unfiltered K test. I've seen 50% more range on Redflex with KV off.
300 metres as against 200. Significantly, I saw minimal falsing driving 30 km's home on a rural highway with KV off.
But hat's with K band CF's that cuts off freqs over 24.110.
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.
 
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LouG

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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.

Well, that's the settings that were chosen, for whatever reason. Run them unfiltered and see what they do. Not that it matters to me personally, but it'd be interesting. Ka is all I worry about.
I don't need/want big L, I run A mode all the time. Another big advantage of running JBV1.
 

OBeerWANKenobi

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Well, that's the settings that were chosen, for whatever reason. Run them unfiltered and see what they do. Not that it matters to me personally, but it'd be interesting. Ka is all I worry about.
I don't need/want big L, I run A mode all the time. Another big advantage of running JBV1.
Yup, just making sure you saw the 40% as they aren't identical on k band. I'm not sure why @Brainstorm69 decided on 40% but I'm guessing it was tested that way so the R7 didn't max out the course like the V1 was close to doing on 34.7 and so users who need some type of BSM quieting would know where to set their R7's to match sensitivity with the G2 as a comparison for quietness vs sensitivity.

If you don't care about K band, then that really opens up your options but most people have to suffer with it unfortunately. Also, I have an STiR plus you may be interested in. 😄
 

Brainstorm69

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Yup, just making sure you saw the 40% as they aren't identical on k band. I'm not sure why @Brainstorm69 decided on 40% but I'm guessing it was tested that way so the R7 didn't max out the course like the V1 was close to doing on 34.7 and so users who need some type of BSM quieting would know where to set their R7's to match sensitivity with the G2 as a comparison for quietness vs sensitivity.

If you don't care about K band, then that really opens up your options but most people have to suffer with it unfortunately. Also, I have an STiR plus you may be interested in. 😄

@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. Maybe next time I test K-band I can run more variations. Didn't have enough time on Saturday to test a multitude of K-band settings.
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So they were effectively identical. It would be good to see an unfiltered K test. I've seen 50% more range on Redflex with KV off.
300 metres as against 200. Significantly, I saw minimal falsing driving 30 km's home on a rural highway with KV off.
But hat's with K band CF's that cuts off freqs over 24.110.

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.

 
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