NZ Chat thread - Post anything related to CM

dudeinnz

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Just found a redflex on the way to work this morning and managed to do a quick bit of testing.

Still running the DFR7 R3 Combo. Vertical mount DFR7 gave good range against redflex and alerted before corner, so no way I would have know it was there without warning. Alert came it at 24.06. Didn’t have the frame of mind to rerun with the R3 on K band and DFR7 turned off. However, it is the same Van I have seem many times before and which has given no alert on the R3 previously.

Running the combo, the R3 has also given a couple of alerts on Ka band over the last few days so I’m relatively happy that is also working correctly.

To be honest, I don’t especially like the combo as it takes up a lot of space on the windscreen. I am also getting a lot of false alerts on K band (I’ve not yet been adding gps lock-outs). However, it is setting a good benchmark from which to compare the DFR9 in the next few days. Based upon these tests, I expect now that the DFR9 should also have redflex capability. The DFR9 is also a better package then the DFR7 and with a screen which is easier to read. If the DFR9 turns out to be comparable in performance to the combo, I would in hindsight have opted for a DFR9 in place of an R3. It’s also a lot cheaper.
That is cool, so is the DFR7 you are using a US bought model?
 

UncleArthur

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Here's the video footage I captured this morning.

Please excuse my excitement I got a bit carried away. This is the first time I've detected a mobile redflex since my Redline got stolen about a year ago!

Also should have done a comparison to see how horizontal mount DFR7 compares to this footage which is for vertical mount DFR7.

View attachment 127017
That's some nice detection there. 24.05 is right at the bottom of the published spec for the US DFR7. I'm keen to see if anyone has an example of a US one detecting one down in the lower frequency range eg 23.9 - 24.04 range.
Unfortunately I've not yet come across one personally to know. (although I have detected a false down at 24.03)
 
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Mithheru

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That is cool, so is the DFR7 you are using a US bought model?
Yes this is a US DFR7 test running its original firmware. It does have my version 2.12 / 20 July 2019 database but that's the only modification.

The first DFR9 arrived today.

If anyone around Wellington sees a redflex over the next few days, please could they send me a PM with its location. I now have R3, R7, DFR7 and DFR9 I'd like to run comparative tests against. This time I'll also compare to see if they's any difference in range between vertical and horizontal mount.
 

UncleArthur

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Yes this is a US DFR7 test running its original firmware. It does have my version 2.12 / 20 July 2019 database but that's the only modification.

The first DFR9 arrived today.

If anyone around Wellington sees a redflex over the next few days, please could they send me a PM with its location. I now have R3, R7, DFR7 and DFR9 I'd like to run comparative tests against. This time I'll also compare to see if they's any difference in range between vertical and horizontal mount.
Outstanding! As above, it would be good to see if we can confirm the frequency range of the US models.
 

Mithheru

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The DFR9 confirms my gps database uploads as expected and my test database gives the expected camera alerts! :cool:
-- Double Post Merged: --
Outstanding! As above, it would be good to see if we can confirm the frequency range of the US models.
I would now expect (hope) that the US DFR7 has the same frequency range as the DFR7 NZ. I reckon the only difference is likely to be the K band segmentation. However, unless someone can step up and either provide a voice file for the DFR7 NZ and/or allow me to run some tests on one, I'm not going to attempt another conversion to the NZA firmware.

I also need to correct myself in my previous comments. On the earlier post about my video I incorrectly stated the redflex frequency as 24.06. The video itself states 24.04 and 24.05 when reading off the frequency. Therefore 24.06 was just what I thought I remembered. 24.04-24.05 would be the frequency on this van which also explains why this van is out of scope of my R3.

Having K band segmentation would be a bonus, as I do get a lot of false alerts on the DFR7 (it is quite lively). Lots of these can be locked out by gps, and if you're out for a drive cross country it would be a lot quieter.
 

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Mithheru

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Okay, I found another redflex and did lots of testing today!


This was not the ideal test location as there is an overlapping false radar signal on a pole at about 24.11 (see captured image). This is probably amongst the most challenging conditions to pick out a redflex at speed, and with very little warning. The combo I started with gave very good performance. The video coincidentally shows the combo being active on both the DFR7 (set to K band only) and the R3 (set to Ka band only). So evidently there are times when you can run two radar detectors together!

Finally a put a comparative image together showing the exact video frame that the redflex alert is first captured (camera running at 30 frames / second). The vertical mount does seem to have a slight edge over the horizontal mount.

Source of False.jpg
RangeComp.jpg


So in conclusion:

- Based upon the frames where the Redflex K band signal is first detected it looks as though the DFR7 is similar to the R7 against redflex. Vertical mount does seem to have a slight edge over horizontal mount (however, I don't yet know how this will effect the R7 Ka band performance).

- Sadly, the DFR9 running its current firmware does not have redflex detection capability. I did get a false alert earlier at 24.06, so that is probably at its lower limit.

- The US DFR7 is turning out to be quite a surprise! The combo although taking up a lot of space on the windscreen and also needing two plug sockets is giving really great overall performance.

- I now recommend running detectors with K band filter ON. This did cut down the false pole alert in this test and allow a much cleaner redflex detection.
 

dudeinnz

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Awesome work!


Sent from my iPhone using Tapatalk
 

winterbrew

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Nice work - my DFR7 US for USD 129 from BuyDig is looking good :)

I'll have to test it against my Raptor RP-1, 8 mW, linear polarisation, K band to see how it compares to the R3 & R7.

Will put it up against the MRCT as well.
 

Mithheru

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Everywhere I go at the moment I seem to encounter redflex and police cars!

This time I was running vertical mount R7: Ka band segmentation; K band filter on.

Seems to prove Ka band range is more than acceptable even when running on vertical mount.

 

Mithheru

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Mithheru

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Just captured this footage against mobile redflex on the way back from daytrip coming back on SH58. Running vertical mount US R7. Looks to be the same new silver van I captured on my comparative testing.
 

dudeinnz

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@Mithheru
That is an awesome Redflex detection! Looks like you were going at a few clicks ;)
 

Mithheru

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"Just captured this footage against mobile redflex on the way...."

Is the sound working for you guys? Its not working for me when I play it back. The first beep from the R7 is at 11 seconds into the video. Therefore this US R7 gave me plenty of time to adjust my speed.


This is the frame from the video where the alert is first detected. If you look closely you can just seen the van in the distance. Looks as though the road may just bend through the radar beam on the way through.

SH58FirstAlert.jpg

I'm also finding the GPS lockouts gets rid of most false alerts. The long drive today, was mostly silent, and far far better than my redline would ever have done. This redflex detection range is also very reassuring. A significant amount of the mobile false alerts I'm finding, are also within K band segment of the R7NZ. Therefore, whilst obviously I am biased, I think I would still opt for full gps camera coverage, than having to choose the K band segmentation (and at extra expense).
 
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LouG

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Great range for Redflex. Have you noticed any change on Ka range?
 

quickxa

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That is just the kind of performance I'm after! Excellent! Really looking to getting my US R7 in a few days...
 

NTLGNC

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Nasty location for a van if you were travelling in the other direction.
 

maccapakka

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Looks good. Long time lurker here and had a few PM's with @dudeinnz . For the last couple of years ive been ready to pull the trigger on a new detector (got an old bel 995 mounted to my bike) but for whatever reason have pulled out. Speed camera performance is important so it looks like a DFR7 is the go, but now im seeing that importing one then loading your fancy software @Mithheru is the way to go? Bit confused....
 

Mithheru

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Looks good. Long time lurker here and had a few PM's with @dudeinnz . For the last couple of years ive been ready to pull the trigger on a new detector (got an old bel 995 mounted to my bike) but for whatever reason have pulled out. Speed camera performance is important so it looks like a DFR7 is the go, but now im seeing that importing one then loading your fancy software @Mithheru is the way to go? Bit confused....
This footage is captured using a US R7, not a DFR7. Had I had a bit more time, I would have liked to compare redflex detection range against the R7 and DFR7. I had the DFR7 with me at the time, just needed to get back home. Redflex is still tough. This instance possibly got better range because the approach on the road bends through the radar beam at distance where it was first detected. However, the R7 does keep hold of the signal so, still looks like a strong detection. This run really would have been the ultimate site comparison to compare different detectors against redflex. No other radar interference; and not too much traffic so I rule out 'lucky' reflections between one run and another.

This signal was also low K band at about 24.034 so completely undetectable with the R3!
-- Double Post Merged: --
Great range for Redflex. Have you noticed any change on Ka range?
I have had two very useful Ka band detections on the vertical mount R7. My gut feeling is my vertical mount is possibly not quite as good a range as my previous standard mount R3. However, its still pretty close, and more than adequate. I had a good instance yesterday, just haven't downloaded the footage from the camera.

Basically in a built up area, I was on the approach to turn right in the dark when I got a 'front' alert. I decided to wait at the junction, sure enough about a minute later the police car came around the corner. So I really am loving the R7 so far.

My only criticism is to find a better vertical mount. First one I made from Aluminium, and works well but the suction cup ends up above the detector and takes up too much space cutting down visibility. Currently I am using a wizgear magnetic mount. This is quite a large mount that goes on the side. However, the metal plate now keeps coming unstuck from the R7. So either need to find better adhesive, or make another metal mount to clip into the R7 and sticks to the windscreen from the far side of the detector to give maximum visibility.
 
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