X, K, & Ka band: Understanding Radar Detectors
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- เผยแพร่เมื่อ 13 ต.ค. 2024
- This video explains what it means when a radar detector can detect X, K, Ka, & Ku band.
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X, K, Ka are all names of colors of light. Like Red or Green, they just indicate a specific wavelength of energy.
X was used quite frequently in the 80's. Today, it is used often on automatic door openers.
K was introduced because it was able to extend further than X. It is still used quite frequently today.
Ka was later introduced and is equally as common. The small "a" after K stands for "above", as in K-above, or just above the frequency of K.
Ku is a new frequency used extensively in Europe. The "u" after K means "under", as un K-under or frequency just below K.
Laser is just another frequency (color) of light. Obviously, it is more precise than X, K, and Ka because it doesn't spread as much.
POP, I believe, is a quick burst of Ka. It's preferred by some because cops don't just drive around emitting signal all the time at the front of their vehicle.
wow i should've just read this first
Legend
For some reason every time I get a Ka alert from a cop it’s when they are moving.
@@yankenobrim2902 Same
As an Electronic Warfare Officer, I commend your excellent explanation.
Most fighter jet radars are somewhere in the X Band as well.
I know for me personally, X band don't matter to me, K band there is something in the area so I better slow down, Ka band, SLOW THE HELL DOWN, there is a police officer radar gun pointed at me and of course "LASER" alert.
and now in 2018 Digital
Laser means your fucked
not necessarily. in PA, the toll booths have something laser related. Everytime I am close to the tollbooths on I76/276, my redline's laser mode goes wild.
The laser on my escort goes off all the time for no reason
My escort actually saved me on a laser in WV, I thought I was definitely toast but it worked out great
Commenting on an 8 year old but very informative video. I have been in the market these last 2 days for used radars to replace my old ones. All of your videos are so in-depth and thorough that I enjoy watching about all of the different radars and dashcams you test. You do an incredible amount of work and we appreciate it in helping us make the best decisions to make a purchase or even to understand how it works. Lastly I even appreciate full detector teardown as it helped me repair a used one I bought. Keep up the amazing work and I hope to support you in the future. OK Cool!
By far the best place to get info on radars and how they work. Good job man keep it up.
RF spectrum (Shortwave, AM/FM, CB, Ham Radio)...
Higher frequency = shorter wavelength = smaller antenna
Lower frequency = longer wavelength = larger antenna
Similar to sound waves...
Tweeter = Higher frequency = Smaller Speaker
Sub woofer = Lower frequency = Larger Speaker
you are correct, I learned this in radiology school
Great info. I remember working for a defense contractor which used radar warning receivers for military aircraft. Most of the actual details were classified, but they looked for specific radar profiles, a combination of carrier frequency as well as the pulse repetition frequency. I have no idea how civilian radar detectors work, but I imagine it would be similar.
The other thing the military RWRs can do is have new firmware installed to keep them up to date with new threat profiles.
Wow excellent video. Really sums it up in an intelligent, articulate way. Thank you.
Your video is really helpful to get to understand what kind of radar detector you need,,Like in my case , I'm out shopping for a radar detector, this info is going to help me to get a more efficient unit,, thanks
In 1947 Automatic Signal Company in Connecticut built one of the first traffic radars for state police. Early radars were bulky and heavy systems, vacuum-tube technology. The radar consisted of 3 or more large components, an antenna, a 45 pound box with transmitter and processor, and an ink pen strip chart paper recorder. The radar also had a needle meter calibrated in mph. Some systems had 2 antennas, one for transmitting and the other for receiving. The antennas were mounted on a tripod, patrol vehicle hood, or fender. Some of the early 1960s' models mounted the antennas in the back windshield of the patrol car.
The first traffic radars transmitted at 2.455 GHz in the S band (2 - 4 GHz). The antenna beamwidth varied from 15 to 20 degrees depending on model. These radars operated from a stationary position only and measured receding as well as approaching traffic to an accuracy of about ± 2 mph. The maximum detection range was an unimpressive 150 to 500 feet, vacuum-tube receivers do not have the sensitivity of solid-state receivers. S band radars are obsolete.
bill luzius Yeah, those ancient beasts were cool. That website is a great read and the photos are kinda hilarious. It'd be awesome to find one around somewhere, a museum piece perhaps?, and give it a whirl. ;)
Cop in 1947: Sir, do you think this is a racetrack? We got you going 40 in a 20 zone. That’ll be a $20 fine!
We have a 'Your Speed Is' unit set up on the edge of town, been there for about a year. My Redline always picks it up starting around 6 miles out.
A couple months ago, the Redline quit detecting it even though its in use, and I noticed a blue LED light (small) in the middle of the sign at that same time.
I've noticed that same blue LED on several of these signs throughout the midwest that the Redline doesn't doesn't sniff out.
Is th e frequency of the blue LED somehow mixing with the radar freq, thus making it so the Redline can't sort the 2 two?
Thank you buddy I really needed this video. Got my 1st radar which is a Cobra 6555 I'm believing. I totally understand the differences now. Keep it up! Thank you sir.
I got hit with my first k band in a very long time today. Rural Oregon. I'm happy that I knew to leave k on because I would have been going 35 in a 25 if I hadn't known he was there. Probably a pullover in a school zone
If you are speeding in a school zone, you are a first class asshole.
If you are speeding anywhere, you are a first class friend of mine!
Thanks appreciate the explanation now I can take advantage of expert mode on my 9500ci
@Brenda Guiterrez, Whistlers don't offer sufficient performance these days given what else is available. Buy a V1 directly from Valentine (excellent product) to get a brand new one then watch my videos on programming it.
Vortex Radar The v1 is crap I had one, get the passport 9500ix
You're preaching to the choir telling him on which detectors are good.
+Commando you're right-ive gotten 1 ticket since I've had mine. best I've ever owned. My only request would be for it to have arrows, but I'll take it. excellent detector.
Thanks for the good information! I am a rookie at this laser stuff. I have brought a Cobra RAD 450 unit. Is it a unit in your opinion?
Definitely is a unit alright.
Yeah its a unit
KU Band is big overseas because in a lot of European countries over there (like the UK) like to use photo radar. Big in Australia too. So the antenna size is not an issue because it's a big box with IR and Flash for a camera, they can get you day or night, and in a lot of those countries radar detectors are illegal. One might worry that photo radar may come to the US. I don't think thats a high likelihood based on the general public opposition to red light cameras but who knows. Anyway, there are lot of manufactures who would love to sell those KU photo radars in the US. And from experience, many photo radars are a very weak signal that shoots to catch you from behind, like no more than 50 feet. You need a really really good detector. Most will only give you a weak beep and its too late your picture is taken already.
thank you buddy i definitely understand now...keep up the videos nice work👏
That was very helpful man thank you really looking forward for more videos 😃
Thank you for posting ... loved the simplistic details.. 🌟🌙
Another reason I hate living in NJ. They use them ALL!
why does jersey use all of them??????/
in frisco too bruuh
Jersey state troopers shoot Ka band and even cheap detectors pick it up from far away
Would love a bit of info comparing the 3 bands on range for speed detection and which ones are picked up by radar detectors first.
Thanks for your video I feel smart now and because of this I got a cobra rad480i any suggestions is good or bad?
Good informative video !!! Do you know what radar band they usually use in CT ?
Oregon still uses X band radar. Parts of Mississippi and Louisiana still have X band. Colorado still uses X band in remote places. New Jersey and especially Ohio has X band. I picked up a lot of X band and 33.8 ka band being used in Ohio.
So X doesn’t matter to much, K is basically just slow down before it’s too late, KA it’s slow down immediately or your dead, and laser is slam the breaks? And determining the color from grey to dark red also determines that close distance and danger?
great video but i have 2 questions.
which band does the police use more often and why? and for what reasons would they run on different frequencies?
+Juan Navarro See this video to find out what's in use in your area: th-cam.com/video/n2UIfQUGqUE/w-d-xo.html
As for why they'd run different frequencies, it may come down to cost, antenna size preferences, contracts with different suppliers, they're saving money and using old hardware rather than buying new equipment, and so on. Many reasons. :)
@@VortexRadar interesting.
I ignore the x and k. K is mostly the your speed things on the side of the road
Very informative and well explained thanks!
Great vid. I had no idea how to read my radar detector lol
Thanks that for the information, i really like you're videos, i have a one question tho, if a lower frequency radar requires bigger gun, how can blind spot ditection on new cars fit a K band gun anywhere ?
+Akmal Maksumov Good question. Blind spot sensors don't use conical horns like this. They use patch antennas which operate on the same frequency but are a much smaller design. See this video for more information: th-cam.com/video/YZ4C5neYmRw/w-d-xo.html
Thanks for the vid that was helpful. I live in NJ so i guess im better off leaving everything on 😅
I’m from New York and I’ve noticed that my X band goes off around a couple of stop lights in my area and when I looked further into it each light that triggers X band has a plate reader/camera
You can disable X band in NY. It’s used in NJ, but not NY.
Great information, but what about specter alerts? I know I've had a few false alerts on that band? Any reason to not just disable it?
+Sage Wysocki I take it you're using a Cobra or something? Yeah just disable it. If you live in an area where radar detector detectors like the Spectre is in use, get a detector that's actually immune to detection altogether like a Redline or Magnum.
X band is still in use someplaces in TN
Great video thanks for the explanation 👌🏼👍🏼
What about laser radar detectors? Is that different from these that you've shown? I'm a novice in radar detectors. Thanks.
is there a way to figure out where X-Band or K-band is still used in the U.S?
+sevenpointsixtwo Not with 100% accuracy, but yes. th-cam.com/video/n2UIfQUGqUE/w-d-xo.html
What band do they us with speed cameras? Will radar detectors work with speed cams? If so which is the best radar detector for speed cams?
There's many many different types of speed cams. Some use radar (all sorts of different frequencies and power levels), some use laser, some use cameras, some use sensors in the road, etc. The newest RD's from Escort, Uniden, and Radenso can pick many of them up, plus they have GPS to alert you to fixed photo locations which is especially nice if they're not using radar or laser in the first place.
Canada has Ku band that's the reason im watching this video lol i get alot of ka 1.2,3 and then KU 4,5 all the time
Apologies if this is asked already, whats the difference between k low and k?
The setting in your detector? For K band that transmits around 23.9’ish instead of 24.x which you usually see internationally and/or for photo radar.
ohio state runs x band a lot it seems to be very strong i pick them up a very long distances
Thanks for the video. Great explanation.
According to RDFGS Geographic Survey. It says K Band is used where I live. However I've never encountered a LEO using K Band to capture speed. I've passed many "Your Speed" signs and automatic door opener, ect. Because the V1 gives a lot of K Band false alerts I ended up shutting off K Band. Would you recommend this?
Do Highway Patrolman ever use K Band or is it mostly KA Band?
Some areas only use Ka which is great. K is still used all over so it's good to use your best judgement, especially if K is still reported as in active use. Shutting K off can be helpful at times. Applying lots of filters to K can really help too.
TravelCam1111 I'll keep that in mind. Thanks!
So should I dismiss most k band alerts that are not 24.xxx almost all of my k band alerts are like 21.xxx
Em Es em All K band alerts are 23.9xx or 24.xxx. You often can't tell as much by the frequency of K. Sometimes, yes, but Ka it's more helpful. Just drive around and you'll get a feel for things over time.
Is there any new police radar guns that the V1 can't pick up? Like a photo radar gun or like 1ms quick trigger? Any news if the US going to implement Ku band anytime soon? Would the V1 be good at detecting it?
Nope, it can detect everything. No worries about Ku. It won't be coming here, but the V1 does support it.
just bought a crown Vic and it had a cobra radar kept telling me c and k code thanks now I get why
absolutely magnificent brother!
hey there awesome video I know fully understand all the bands lol ... anyways I'm in the process of purchasing a radar detector but I honestly do not want to spend over 100 bucks do you know what the best detector is around my budget . I live in a city so 95% of my time I drive on a Freeway. ! your input would be great thanks
Rafa-
Farmboi Raf22 You might be able to squeeze by with a Uniden LRD850, but keep in mind that if you push your luck, especially without laser jammers, and have to deal with the cost of speeding tickets, court costs, insurance hikes, lawyer fees, and all the headache and stress of dealing with tickets, you may later wish you had properly invested in adequate protection.
Vortex oh okay thanks because I was looking at a cobra xrs9745 . what do you think about that detector ?
Farmboi Raf22 Cobra products are among the very worst in the industry bar none. Sorry to say but those are garbage. th-cam.com/video/4DiU2A4c2s4/w-d-xo.html
Okay thanks for letting me know now I know not to buy one ! like I mentioned a bit ago I'm looking to by a radar detector under 100 bucks I'm kinda on a budget now since I got my new car
Awesome video. Thank you for taking your time to do this. Ive aleays had radar detectors and always slow my rold anytime they go off no matter what signal its showing because well. Im a male and i ditn read manuals and i didnt kno what was what. I know abour the bands and all that but i didnt know specifically what was what but this totally broke it down and gilave me a knowledge of when to just be safe abd use cautionnand when to slow the ufk down for sure lol.. thanks for this video super helpful sir. Id give it 10 likes if i could. Thanks again!
Well explained video thank you!
Good info Thanks for that, so now I know what the X , K, and Ka stands for, but what about the V and S, my radar has those extra two things that I don't know what they mean, can u tell me something?
It looks like this
X, K, Ka, V, S
JAIME DZ 3.29
Great video!!! Very helpful.
I have a bell pro R65 I think the full name is bell tronics It has These bands. X, K,Ka,POP,Ku,LSR,SWS .AND a vote meter, a light that low medium high and d dark. And it talks .with a cigarette lighter plug that changes green to red with a mute button. I was going to update but I heard don't waste your money because they will not be working with the new electronics that is coming out. This is i say at least 20 to 25 years I have had this.
Hey does construction equipment ever emit Ka? I was getting stupid strong 33.8 going through a small construction zone with no police cars and the ramping made it clear it wasn't a crapbra leaking
It's rare, but yeah, there are some Ka band speed signs going up around the country now.
Thank you - educating myself!
do you have idea about MIMO Radar signal processing please make a video
Thanks, was wondering why my detector goes off all the time when theres no police in sight...do the traffic signals with cameras set them off as well?
+Jeff Swafford Those don't, no. Usually it'll be set off by speed signs, automatic door openers, and nearby cars with radar-based blind spot monitoring systems.
How do you know if x band is still being used in your area
Thank you appreciate the video
Do the frequencies used have anything to do with accuracy or distance? Would Ka be more accurate and precise than say, K?
ZX10Alex Not in any way. That's more about the detector's design and sensitivity to different frequencies, as well as how well the radar gun itself is design, but there's nothing that says one frequency is inherently more precise than another anymore than saying the colors on channel 4 on my TV are more accurate than the colors on channel 3 because it's a different channel.
do you recommend getting the cobra spx5500
+Jose Jimenez Absolutely not. Here's my take on the SPX7800BT. Same performance but a few more bells and whistles. www.rdforum.org/showthread.php?t=43451
They use all this shit here in California! Anyway, glad I found this page! Thanks for the much needed explanation!
bro very helpful
Do you know if in Nevada they still use k band or am I safe to turn k off?
X band I'm sorry.
No X band in NV. See here: www.rdforum.org/wiki/index.php?title=RDF_Geographical_Survey_-_Nevada
Vortex Radar thank man for your information and the videos! Saving all of us stupid money on tickets!
So in theory as time goes on police will be using v and w ? also with higher frequencies does this mean detecting speed will be clocked much farther then with KA or K ?
+Vegas “Vegas747” Seven four seven Distance isn't a function of the frequency being used in this regard. There's also no reason for manufacturers to reengineer their current tech to use new frequencies, get the approvals from the FCC to use those frequencies, etc. So in theory anything is possible, but there's not much practical reason to do that.
So smaller higher frequency entennas have nothing to do with distance ?
Vegas Seven four seven No, that's not part of it. Even if it did, these guns are only designed to be used for a few thousand feet away at the absolute max and that's well within the range of what these units are capable of. You'll have more range limits due to things like hills, traffic, curves, and so on than you will due to the choice of frequency.
How do you find out if X bands are used in your area, other than just having a detector and finding out for yourself?
Brandon Shaw This'll show you how: th-cam.com/video/n2UIfQUGqUE/w-d-xo.html The X band listings there aren't totally accurate and there's less in use than what you'll see there, but that'll get you pointed in the right direction.
TravelCam1111 Thanks buddy. Helped alot. Love your vids
Does any1 know what LSR X 40 41 means ??? Or how can I found out what all the signal mean?? Like K ? Or LSR 1009 ? OR LSRX 41 40???
I live in warrick county indiana..
Thanks for sharing👍
what is Ka Max Mode, im buying the whistler cr90 and it says Total Band Protection
-X, K, Ka & Super Wideband Ka Detection
-Ka Max Mode
Enrique Valiente There's better products out there for the money like the Beltronics RX65 S7 and Uniden LRD950. I wouldn't recommend the Whistlers at all at this point.
i kknow it just that im buying it for only 68$
Enrique Valiente Well, prepare to get owned and spend WAY more than that on speeding tickets, court costs, insurance hikes, lawyer fees, time and headache dealing with the ticket, etc. Again I don't recommend skimping out in this area... Really. If you are convinced that saving a little bit now and losing hundreds or thousands of dollars later is a worthy tradeoff, run it in Ka Max. That'll give you the most detection possible (still not enough and easy to get owned) against Ka band which is the most popular radar band in most areas.
by any chance do you have a review or test on the whistler cr90??? it would help, i havent seen a decent one like you show in yours vids
Here's some tests with the CR85. (Same performance as the CR90, just without the GPS features.)
www.rdforum.org/showthread.php?t=42809
www.rdforum.org/showthread.php?t=38256
do you have any videos to tell when a K Band hit is LEO?
+Brian Van Buskirk That's not possible to do reliably. You can enable various filters to help filter out different types of false alerts, but when the radar beam coming from a police radar gun looks exactly the same as a radar beam coming from a speed sign, grocery store, or the car next to you, there's only so much that a radar detector can do to tell the difference.
was driving in KY, a cop was moving thowards me, he clocked me 25 meeters away being on the oposite side of highway, now because of he could not make u turn right away, he cought me within 15 minutes. He was making u turn some where. Basically I am not sure how he could reconize my car after 15 minutes after ( i do not have a noticable car ).
Screwhead GTA_Addict I
Soooo What’s your piont ?
What about LIDAR Laser based guns will they be detected by the upper end units
Watch this video: Laser Detection in a Radar Detector th-cam.com/video/75fsXgZDdK0/w-d-xo.html
Great stuff. Thanks for your videos. Very helpful.
+Brandon Fertig What is it that you do for a living, out of curiosity?
+Brandon Fertig Basically moving to doing this full time so I can keep creating content for you. :)
Smart. I actually see an entrepreneurial mind in what you are doing, and so that is what I was thinking. I think you can create something very exclusive and dominate a market that has no competition.
Great knowledge that's for the info
what k frequencies should i mute ?
what's the VG2 for?
It’s for when they are scanning for radar Detectors
I heard x band is in use in Ohio. Should I leave it on and any details on how common it is?
+Anonymous User It's very common there so yes, definitely leave it on.
which frequency should I get ? I am living in bay area
+Michael Chak This video explains how to find out what's in use in your area: th-cam.com/video/n2UIfQUGqUE/w-d-xo.html
Very helpful thanx!!!
Hey whats the best RD For town driving ???
anthony perez People ask this all the time, thinking that there's actually a right answer to this question. There's not. They all have their own pros and cons. It depends on how much automation vs. control you want, if you want to pair it with a phone, what your budget is, and so on. th-cam.com/video/4DiU2A4c2s4/w-d-xo.html
I recently bought a 9955 cobra any tips on setting it up
+Cisco C Yep. Return it and buy a better detector.
Ouch their is nothing out their without giving all your money is their
+Cisco C That used to be the case. Either a cheap Cobra and lousy performance or high end Escort/V1 but high end pricing. There's now actually other options out there where you can get high end performance without the price. th-cam.com/video/_lQuG0bx1oA/w-d-xo.html
love you vids. subscribed!
Welcome!
Does this apply to the uk?
Is X ban in uses in North Carolina? Or can i turn it off?
Dustin Cook x band is most likely a automatic door or garage remote
what band is used in Oregon ? thank you so much for ur awesome video
+Naz Oregon check this out: th-cam.com/video/n2UIfQUGqUE/w-d-xo.html
What does the number of bands mean like "9 band" or "14 band"? Thank you
It's a bunch of marketing nonsense. Here's a video on the subject. :) th-cam.com/video/VQJmhN8sjNc/w-d-xo.html
Awesome some thank you Vortex, you have no clue how big of help you have been, no ones been able to answer it!
+Jayce Chairez I'm glad to hear you're getting it all figured out now! :)
Is Ku Band no longer used?
Apparently there's some European countries where it's used, but it was never used here in North America.
Do you live in Wilmington nc? Sorry fur random question.
+Saher Agil lol nope, Seattle, WA
+Vortex Radar what settings would you recommend I use to get the best performance on my XRS9370 cobra radar detector? I also live in Washington state
+Austin Causey I would suggest selling that detector and getting something better to be honest. Those have poor performance, poor filtering, and leak signals that create false alerts to any other radar detector users like me nearby.
be care with x band got hit in Miami thinking it was nothing but cop was outside the car with radar gun.
nightdiamond i live in miami should i leave X band on?
Hi my friend..I have a uniden r3 In California hwy patrol give a ticket 🎟 but radar never sound...by the way I runs all USA for 2 years and nothing happens..
Sounds like you got hit with laser. Do you run Waze and a laser jammers?
Hmmm, my $50 Cobra in 6 years has never failed me..
I've never seen X band in 6 years, and KA is almost always Radar
what's a good, solid budget radar detector ($150 or less)
I got the cobra 450i works great
Can cops detect your radar detector ? Idk anything about this I'm new to this stuff .sorry for the stupid question
Most radar detectors can be detected by radar detector detectors.
What is a laser alert just got one for the first time today
Differences Between Police Radar and Laser? Five Minute Fridays, Ep. 29 th-cam.com/video/lQFl_rxswPA/w-d-xo.html
Can civilians run these in a POV?
I thought KA meant it was an actual cop using a speed gun???
Generally speaking, yeah. There’s not many false alerts on Ka.
Why did they go away from X band?
Big huge bulky antennas in cars that are already filled with computers, lights, sirens, etc.
Nice video
Great 😊 🤩😎