KA narrow and KA wide

bamapepper

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What is the difference?
 

Elcid2015

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For the R7 (from Vortex's Website)

Ka Narrow / Wide / Segmentation
Adjust the range of frequencies that the R7 scans for on Ka band. All of Ka band is very wide so cutting down to a smaller range of frequencies improves the performance of the detector.

Narrow: (Default) Scan for a reduced range of Ka frequencies to only the ranges where police radar guns generally operate (33.8 +/- 100 MHz, 34.7 -100 MHz / +150 MHz, 35.5 +/- 100 MHz)
Wide: Scan all the possible Ka frequencies where the R7 is capable of scanning for (33.400 GHz – 35.700 GHz)
Segmentation: Choose the individual Ka frequency ranges where you’d like the detector to scan for.
Ka 1: 33.399 – 33.705 GHz
Ka 2: 33.705 – 33.903 GHz (MPH 33.8 radar guns)
Ka 3: 33.903 – 34.191 GHz
Ka 4: 34.191 – 34.587 GHz (Stalker 34.7 radar guns that drift low)
Ka 5: 34.587 – 34.803 GHz (Stalker 34.7 radar guns)
Ka 6: 34.803 – 35.163 GHz (Stalker 34.7 radar guns that drift high)
Ka 7: 35.163 – 35.379 GHz
Ka 8: 35.379 – 35.613 GHz (Decatur & Kustom Signals 35.5 radar guns)
Ka 9: 35.613 – 35.701 GHz
-- Double Post Merged: --
I did some testing of the impact of this setting here.
 
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LinuxD

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With my DFR7 I always run K wide and KA wide until I know the area. I am glad I did the other day as I caught a 24.080 signal off an Osceola,AR city cop. Just started driving back over there for work. 24.080 is the lowest frequency on K Narrow the DFR7 will scan from. Looks like I will have to run K wide just to be safe (down to 24.050) KA narrow i am good on.

DFR7/LRD950 Wide/Narrow question
 

Heywood

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Sounds like that could be a slightly out of tune Falcon HR or Raptor.

If it was, I’ll bet it was a quick hitter with no long range detection. They run at 9 millivolts vs 35 millivolts of a normal radar gun.
 

LinuxD

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Sounds like that could be a slightly out of tune Falcon HR or Raptor.

If it was, I’ll bet it was a quick hitter with no long range detection. They run at 9 millivolts vs 35 millivolts of a normal radar gun.
Actually I got quite a long detection on it, left side of the google maps screen shot is where i got first solid detection, prior to that back about half mile i had a brief alert of two beeps, right side is where he was sitting just before the US 61 junction. 2.17 miles isn't bad. I think you mean milliwatts,not millivolts. Radar is measured in milliwatts.

Also the "out of tune" portion is incorrect. the K band for police radar is CENTERED on 24.125 or 24.150 (depending on gun make) and they are allowed to be 100 mhz up or down from that. So it is not out of tune. out of tune would be BELOW 24.050 or ABOVE 24.250. A more proper term would be "off center frequency" 24.080 is STILL in tune.

120036
 
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DrHow

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For the R7 (from Vortex's Website)

Ka Narrow / Wide / Segmentation
Adjust the range of frequencies that the R7 scans for on Ka band. All of Ka band is very wide so cutting down to a smaller range of frequencies improves the performance of the detector.

Narrow: (Default) Scan for a reduced range of Ka frequencies to only the ranges where police radar guns generally operate (33.8 +/- 100 MHz, 34.7 -100 MHz / +150 MHz, 35.5 +/- 100 MHz)
Wide: Scan all the possible Ka frequencies where the R7 is capable of scanning for (33.400 GHz – 35.700 GHz)
Segmentation: Choose the individual Ka frequency ranges where you’d like the detector to scan for.
Ka 1: 33.399 – 33.705 GHz
Ka 2: 33.705 – 33.903 GHz (MPH 33.8 radar guns)
Ka 3: 33.903 – 34.191 GHz
Ka 4: 34.191 – 34.587 GHz (Stalker 34.7 radar guns that drift low)
Ka 5: 34.587 – 34.803 GHz (Stalker 34.7 radar guns)
Ka 6: 34.803 – 35.163 GHz (Stalker 34.7 radar guns that drift high)
Ka 7: 35.163 – 35.379 GHz
Ka 8: 35.379 – 35.613 GHz (Decatur & Kustom Signals 35.5 radar guns)
Ka 9: 35.613 – 35.701 GHz
-- Double Post Merged: --
I did some testing of the impact of this setting here.
With your good post floating around, you need to get promoted as soon as allowed. :)
 

Deadhead1971

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What is the difference?
The difference is probably range performance. Running Ka wide today is like the old detectors from the 90s that had Ka superwide band. Terminology has changed over the years so “ka superwide” is now commonly called “Ka wide.” This mode scans the entire Ka frequency range, which is generally not necessary, and takes longer, and potentially reduces Ka range a little- as the detector has to spend time scanning Ka frequencies that don’t really matter (in most cases).

While that may have a small performance hit on range, running Ka filter is said to really hit performance. So if one is running both Ka wide and Ka filter at the same time, this is really not optimal for long range, and I would expect reduced Ka range based on the many reports here on RDF.

So Ka wide is scanning the entire Ka range. Ka narrow narrows down the range, and segmentation allows you to pick and choose and refine the range some more. I use segmentation.

With the exception of maybe Ka photo radar, the police Ka guns in use are centered on 3 frequencies- 33.8 (MPH), 34.7 (Stalker), and 35.5 (Decatur and Kustom Signals).

Many use, incl myself, Ka segments 2, 5, 6, and 8 ON and 1, 3, 4, 7, and 9 OFF. Some have reported that Stalker frequencies may drift high so that’s why many run 6 ON to cover if that happens.

In my opinion, Ka filter is not needed if you run the above segments. I’ve had Ka falses on an escort detector around 34.498 GHz. This false frequency is on either segments 3 or 4 which I have OFF.
 
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bamapepper

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I am wondering if using segmentation 1 would help since it actually is coming up in the 33.73 range?
 

Deadhead1971

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I am wondering if using segmentation 1 would help since it actually is coming up in the 33.73 range?
you sure “they” use 33.8? Just askin’ since cobra detectors will cause other detectors (like Uniden) to false on 33.8 if you get within a car or 2 distance.

I see you are in Georgia- your highway patrol use K band on I-95.
 

Kennyc56

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Yes, pull some strings for me! ;) I guess I just do not meet the automated requirements for advancement.
I'm sure that you know this, but you don't get promoted to Intermediate automatically. You must fill out your survey. Once you get it, take your time and be very thorough! That is of course if you haven't already done it!
 

Elcid2015

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I'm sure that you know this, but you don't get promoted to Intermediate automatically. You must fill out your survey. Once you get it, take your time and be very thorough! That is of course if you haven't already done it!
I don't think I've received a survey, unless I'm an idiot and don't know where to look.
 

Kennyc56

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I don't think I've received a survey, unless I'm an idiot and don't know where to look.
Once you've met your requirements, it will pop up on the right side of your screen. It will say RDF Questionnaires junior member. Until you see it, keep on posting well thought out and helpful posts just like you've been doing! When the time comes you'll get your survey and I'm sure you'll kill it! Before you know it, you'll be getting you're Advanced survey, and one day you'll be helping a Beginner get promoted to Intermediate! We've all been there!
 

Deadhead1971

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I don't think I've received a survey, unless I'm an idiot and don't know where to look.
See here - New Feature - April 14, 2019: Promotion Questionnaires Are Re-Enabled & Some Other Stuff!

Turn-around time varies. I think my advanced questionnaire took about 3 weeks for a yes or no vote based on what I had written/ submitted. Be honest and provide as much info on your detector/ countermeasures interests and history. Like Kenny said, when it’s time, the questionnaire will be available as shown in the above link.
 
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bamapepper

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you sure “they” use 33.8? Just askin’ since cobra detectors will cause other detectors (like Uniden) to false on 33.8 if you get within a car or 2 distance.

I see you are in Georgia- your highway patrol use K band on I-95.
This is the only detection I get when hit with radar . They don't use k band nor laser here,
 

Elcid2015

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Once you've met your requirements, it will pop up on the right side of your screen. It will say RDF Questionnaires junior member. Until you see it, keep on posting well thought out and helpful posts just like you've been doing! When the time comes you'll get your survey and I'm sure you'll kill it! Before you know it, you'll be getting you're Advanced survey, and one day you'll be helping a Beginner get promoted to Intermediate! We've all been there!
@Kennyc56 @Deadhead1971 So apparently I did have that Junior level survey link, I've just never noticed it! Perhaps because I have been using the mobile version primarily. Filling it out now.
 

Deadhead1971

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This is the only detection I get when hit with radar . They don't use k band nor laser here,
Ok about 33.8.

See this and connect with your Georgia compatriots (if you haven’t seen this yet)
 

Kennyc56

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@Kennyc56 @Deadhead1971 So apparently I did have that Junior level survey link, I've just never noticed it! Perhaps because I have been using the mobile version primarily. Filling it out now.
Great! Just make sure you take your time and answer all the questions as good as you can and you'll blow it up!
-- Double Post Merged: --
Just so you'll know, @Deadhead1971 is the one who helped me along the way to Intermediate and Advanced! Without his help, I'd probably still be a beginner!
 
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