Testing has also shown that POP on reduces Ka range. plan on using it on my bike. Best Radar Detector Reviews, Tests, & Guides. Note: If you have your normal volume and auto mute volume set to the same levels, you wont actually hear the volume go down. Greetings, I am disappointed with my R3 purchase. Include a permanent mount 5. Its super bright and works wonders on the KTM! Page 27 of manual recommends updating firmware and database periodically. I use the R1 for 6 months and i still learn new tricks by reading your detailed and excellent review. Some people would want to use dark mode all the time for either stealth or protection from screen burn-in. I think they should also create a speed sensitive alert threshold. These are designed to be safe, give you good performance and filtering, and be applicable all across the country. Ill check for firmware updates after work but do you have any idea what a possible root cause of this error would be? Theres lots of combinations of detectors, vehicles, and so on. Since your in touch with Uniden I have some recommendations at this time. If you cant figure it out, you can always disable laser detection on the R3 (not ideal, I know) and let your jammers handle everything since your R3 wont help you avoid a ticket in the first place (its laser sensitivity is pretty poor and it can false quite a bit) while your jammers will actually help protect you from the ticket. It slows down reactivity by about 0.1s, so not much at all. When people buy a product using my affiliate links, watch my YouTube videos with ads, or support me on Patreon, this helps me to do what I do while still remaining objectively neutral towards different brands and manufacturers. I absolutely love this thing! If youve set your time zone but the clock is off by 1 hour, change this setting. So, does the USB cable powers the unit or do I need the laptop in the car? I love my new R3. Quiet Ride - User set speed auto mute. Your website, YouTube vids etc are an amazing source of info and your passion is appreciated! Im not sure and cant verify since I dont have the MRCD in use around me. Do you have info on those now being used in NC? Yes angle of mounting matters. So as far as sideways mounting, good question. Have decided to buy an R3 once the availability improves. All my detector did was tell me it was time to pull over and get out the wallet. If you're shopping for a Dashcam or Radar Detector, Vortex Radar is the one and only place to do your research! I have Uniden R3 and am very happy with it. Reason: there is more room left to right than top to bottom so it would allow bigger fonts and easier readability, especially for people over 40 who tend to have poorer close vision. Great resource for information on radar detectors and dash cams. Havent encountered LIDAR yet with my R3, but as others have said, the beam is so narrow that you may not even get a notification when you are the target if the detector is mounted much higher than your front bumper and license plate where they usually are aiming. Vladi (Audi S5 Chipped , Thanks! Based on your recommendation (R3 for you, Escort 360 for parents and siblings) I purchased the R3. Vortex knows his stuff! Date (version) of the current redlight camera database. in giving both manufacture details and real world test results. Theyre mount was very similar to the Blendmount but a whole lot less expensive. Appreciate all the information and advice on your site. I am having the trouble that you mentioned with the software download. I also had a rear view mount for my RX65 and was able to take the suction cups off the windshield mount that came with the R3 and screw that onto the same bracket, but its much too bouncy due to the pathetic material used. GPS: On Speed Camera: On Speed Camera Distance: 300m Redlight Camera: On RLC Q-Ride: 60mph Voice: On Ka Freq Voice: On Keep up the amazing work! NO radar detector is likely to pick these up. (Last updated November 2022.). My old Beltronics V995 picked up LIDAR great; it let me know I needed to pull over to receive my ticket. unbiased reviews and will give you the best information possible on tbe products he test. :p. Hi! I agree with you that itd be great if the R3 had more bells and whistles. Is there an app to send the radar warning to my phone and then I would hear it through bluetooth? It turns out it does scan for a narrower range of frequencies which is why we see improved performance. Everyone with a "top-tier" radar detector claims they have a class-leading radar detector. Very honest, personable, and has a passion for what he does. It goes off on a source, lets go again, comes back on. Thanks! Vortex is awesome. This video explains things in more detail: https://youtu.be/Siv_3eTxs They can also pull over vehicles based on visual estimation alone without having to use radar, they can follow a vehicle and match their speed and pull them over based on what their own speedometers is saying, and so on. Brilliant communcation and total product knowledge. I like speed and compass, but sometimes when youre stationary, especially when you first start your car and havent started moving, the compass just spins around and I find this annoying and unhelpful, but the compass is helpful while driving. Best regards sir! It didnt behave like this. The fantastic unbiased reporting of the latest radar capabilities and the ability to Express the technical information. The Radenso DS1 and Uniden R3 are similarly good options, but the DS1 is overall the better choice. The R7 is selling for $500 right now and the R3 was $230. I would really like to run Ka narrow but I live in NY. I love all the features of the MAX360, that the main reason why i purchased it. Best Buy has an exclusive matte black version of the R3. olease help? Will your personal settings be optimal for Oregon/Washington? I have a dash cam recording too and was wondering if it was a different system the officer was using or if its the settings. How do I delete it? The Uniden R3 is a top of the line radar detector that has an MSRP of $400. This is my go to for radar detector knowledge, I want answers and he has them, Performance warranted and best reviews online. Is the Mute Mem feature common only to the R3? 1. Road trip confirmed that driving out west. There is an Aus/NZ version, yes, with a database specifically for your area. Thats what laser jammers are for. Its combination of advanced features and long-range are normally only available on $500+ models. Not exactly the behavior that I would like, but at least I understand why it is doing it now. 2. Already have a buyer for my V1. Please advise. Hey Vortex Just a quick question about my R3. Great post and very informative. Virtually none. https://youtu.be/nxtBGUhwpBE, Also keep in mind that every radar detectors has its own sort of personality or language you need to get used to. Yes, just unplug it until you need to use it. to the point. I just picked up a MAX 360, does it pay to return it for the R3. The R3 has some nice toy like features and it warned me from a red light camera, but the STi picked up signals not only earlier, it also stayed with them and didnt fade in and out on the same source. Mrcd Detection R-3 or future model coming? The thought being is that despite what is logged by users in the state, one might hit an off-tune gun (or such) that is very localized, and not published in any state database. Hands down better range than the V1. You need to plug the radar detector into your computer via USB to update. Radenso DS1 Vs Uniden R3. He really knows his stuff! If you see that error again, you should probably reach out to Uniden. Any idea if this will affect the accuracy of the detector? Unfortunately every radar detector has to deal with those and theres no detector thats immune to them. Everything you'll need to know about Top Detectors this man has you Covered reliable Information and that's Facts I. really Enjoy His Videos online an on Youtube , many Reviews I've learned alot an really enjoy the Collection I own thanks to Him. Selling all items seen in picture, radar detector, 12v power cord, 2 windshield mounts (1 suction, 1 sticky), carry case, and blend mount R3 mount. He has even taken the time to respond to questions concerning setups and. There is an Aus/NZ version database too, but you have to buy the NZ version specifically. Nope. reviews and analyses of the products currently available has greatly helped me determine what is best for my needs. We've listed our top-ranked picks, including the top-selling Beltronics Gt 360 Vs Uniden R3. Perhaps a scientist or university where this is studied specifically? New Uniden R1 & R3 Features in Firmware 1.59 - YouTube 0:00 / 4:00 New Uniden R1 & R3 Features in Firmware 1.59 Vortex Radar 113K subscribers Subscribe 289 Share 6.3K views 1 month ago. Someday, when I have 2 hours to kill in the middle of the day (and Im not at work), Ill call Uniden support. Exactly what I was looking for. (Id expect DOWNdriftbut these were def high). R1 alerts to Laser in nighttime freeway driving. laser detectors, laser shifters, dash cams, and more! The Uniden R3 will alert you to X, K, and Ka radar bands and laser (LiDAR) guns, with the display showing the frequency when a particular radar band is detected. Both detectors also have GPS to mark stationary false alerts, but the DS1 is automatic while the R3 is manual; Uniden adds auto lockouts on R4. Thanks a lot. I dont drive like a mad man, but do keep it 10-15 over on my daily commute, and I like knowing if a Trooper is hiding somewhere trying to make my rates go up! Otherwise everything else still applies. I recommend the products and people reading the information on your web site to learn what is out there and available, I really like the idea of having the ability of recording my driving in case of a traffic incident. I am thinking for motorcycling. Is that right? R1 for PC - "Uniden R Series SW Download Tool and Firmware" R3 for PC - "Uniden R Series SW Download Tool and Firmware" After downloading, extract the files to a new folder. I also travel frequently up and down the east coast from Lake Placid, NY to Orlando, FL. Do you have any suggestions? If the detector is detecting multiple signals, you can choose which signal is given audible and visual priority. There is no better hands on information source on countermeasure devices. Police officers are allowed to transmit throughout the entire range that K Wide covers so if K band is actively used in your area, its best to run with K Wide. I will keep testing it for up to 30 days. Im not sure who to point you towards either. It does not detect laser. I liked my built in escort as false alarms where minimal. btw, for anyone curious this was Hwy 880 through Oakland just north of Oracle Arena. You can delete them by double-tapping the mute button (and pressing a third time to confirm). There is so much information here that will help one in finding answers, Awesome reviews glad to see some one honest and non bias keep up the good work mate :). Also, your Guide says that it will only mute an X or K band alert. We are here in Texas and Im using the same settings listed above in advanced mode and we were traveling together in 2 separate cars this morning and a LEO was pointing a radar at me while I was going above speed limit. Keep up all the good work. Is this a bug, or am I doing something wrong? https://youtu.be/75fsXgZDdK0. Picked up an R3 off your site/review with BRD. The detector will beep normally for a moment, announce the frequency, and then resume alerting. Escort Live does it because it has access to maps when running online and can pull the data that way without having to fill the detector with tons and tons and tons of mapping information. Radar detectors are a handy device to avoid getting ticketed. Can you possibly help with the correct settings for my location I Reside in Modesto CA but I work in the Bay Area. Left and right. Yes, I uninstalled and reinstalled using the latest links, using reset each time. Note: Weve found that the 34.7 sweep actually scans up to 34.850 in Ka Narrow, possibly even higher. A few of us are having problems with the audio when passing through a sena SR10. Hes saved me. If so, can you add the R3 Only in parantheses next to the feature? If youre wondering what settings you should run, Id recommend that you read over this guide and take the time to understand what each option does so you can make an informed decision. Dont rotate it 90 degrees or point it off in any weird direction. Isnt the Laser Star Pro one of the knock-offs of an older AntiLaser jammer? It turns the detector off when youve been stationary (parked) for 1 hour. They are radar detectors. Just updated firmware! Recently searched locations will be displayed if there is no search query. So these settings will all work well too. any thoughts? Running the R3 on default settings, set on City cruising south of Sarasota on US41. 1. reinstall escort? Im going to return this to Amazon, if I cant get this database downloaded. I am very much annoyed with the false k alerts (blind spot alerts from other nearby vehicles). I mean, clearly its a measurable impact or we wouldnt be discussing it, but, really, Im guessing we talking portions of a second? I tried going on the site RDforum.org but the RDFGS page isnt coming up. Be careful not to cover any air vent holes with the hook and fastener tape. ? Can your detector see it by chance? Do you have any experience with them? Hey Vortex,thanks for all your time and effort for us out here.Quick question sir,is the audio jack for the R1 and R3 considered a mono or stereo jack?I just tried hookong up my external escort speaker i had running on my redline but i got no sound at all.Thanks for your time. Seems they dont realize that the fuse spring causes a pressure point and the plastic is too thin or did I just two lemons? Id like to suggest another option in addition to General Recommended Settings and My Personal Settings, and maybe it would be called something like New Field Test Settings, meaning that you would use these settings after a new purchase for an extended period of time, to understand your local situations and radar utilization, and then on an as-demonstrated basis, start implementing filters. Set the speed threshold for Auto mode. Watch the video I just linked you to so you can understand why your detector didnt alert. Exceptional YouTube channel dedicated to radar detectors. Check out the YouTube channel it is enjoyable to watch. The BAT Saver is turned ON, yet the detector does not turn off in a powered outlet. X band has been mostly phased out around the country. Please help. The R4's new platform contains two Low Noise Amplifiers to increase the detection range compared to the R3. Rather than just duplicating the manual here (which is a bit dated now), in this article I want to go into a bit more explanation so you can better understand the benefits of the different settings, their pros and cons, and which one you should choose. The process laid out in the manual doesnt work. Choose your time zone and the time will automatically be set via GPS. I have had more Laser hits than Ka-band hits and wanted to get your opinion about what is happening in the following situations: R1 alerts to Laser in dense, nighttime rush-hour traffic while merging onto the freeway. Then at the very end, Ill share with you the settings that I run. Leave it pointed straight and level the way its designed. still only ka narrow and wide options. Uniden R3 Extreme Long Range Laser/Radar Detector and Scosche 1080p Dash Cam Bundle. Hi, I just got my new R3 from Best Buy. Its so nice. Honest assessments. I cant wait to see if I get results on my upcoming road trip from Chicago to New Orleans this week!!! Notting but the FACTS and the 411 on all that you need to know. The corresponding signal. Hello, I enjoy your website and have learned a lot of useful info. I was pretty pleased that my R3 was working well. Either patchy or not at all?? No more false signals like I was constantly getting from my Bel RX65! I wish all tutorials were like these. Very good and fair reviews and regular updates on a wide variety of products. FYI I just got a brand new (not refurbished) R3 direct from Uniden and the firmware rev. Thank you. A street by my house has a K Band Speed Sign. That detector served me well, and saved me countless times, but I very much wanted the newer filtering and longer range these newer ones have. The 2 mounts that came with the unit only allow a hanging mount I like to use the suction cup in a way its mounted on the back of my display on the dash, which is reversed I wish it had that option So, is it not recommended to mount it 90 or does it not matter? The User Manual, Uniden web Support pages provide VERY LITTLR info or Help. I live in Western WA like you do, but I really want to know if running Ka Narrow and K Narrow as you recommend is really safe to do? 10 - 60 mph in 5 mph increments (Default 40 mph) or 10-100 km/h in 10 km/h increments Rear Bal 0:00 / 18:59 Intro How to Program and Use your Uniden R3 Radar Detector Vortex Radar 112K subscribers Subscribe 297K views 5 years ago #VortexRadar #RadarDetector #UnidenR3 Read the Setup Guide. Also, aviation navigation aids around airports will sometimes set the laser alerts off. Is there some sort of settings that I should prioritize over some others? Until now, anyone interested in monitoring DMR needed to purchase a single-use radio to . The current GOLD Standard in detection news and reviews. This automatically mutes any and all X band and K band alerts, whether theyre real alerts or false alerts, when traveling below the speed you select. Quick question for you.. Ive noticed in the past couple days that with Quiet Ride enabled and set to 30mph I can be sitting stationary at a traffic light and have the detector signal a K band in the area for one blip, and then it will be quiet. Reviews are spot on with his competition. If theres a newer version on Unidens website, download and update. Thats something people are bringing up a lot and would be a good next step for them to address. Between my ham radio gear and my podcast rig, I have about a thousand and one audio jack adapters laying around, so Im sure Ill find one that works. Anyways, I love it. Note: I put a (*) in front of every option that Ive changed from the factory defaults. I will donate as I am able. , Can you tell me what is a good setup for the NC area using the R3, If youd like personalized one-on-one support, you can book a private session with me here: https://www.vortexradar.com/private-sessions/, Vortex, you are the best! is 1.59. The R3 alerts when close to these UserMarks. So, thank you again for such a great, thorough write up! These settings will help in avoiding specific bands in the area that are unspecific to police areas. Many thanks!! Even if it was, it doesnt matter because it doesnt help you avoid tickets from laser. Theyre found all over. Vortex, Just wanted to thank you and everyone else with all the info regarding the R1/R3. A newer Suburban got close up behind me and my KA went crazy. If you enable Ka Narrow instead of Ka Segmentation, it automatically sets up a 2/5/8-like setup for you. USER'S MANUAL R3 OVERVIEW Uniden's R3 is a top of the line Radar Detector with a built-in GPS feature. I immediately ordered a new Blendmount for my car, so Im praying that gives me the same solid, no bounce I had with my RX65. They are the best videos out there when it comes to radar detectors. I completely understand that but the disappointing fact is that he was obviously pointing a radar/ laser gun at us and nothing went off. Voice announcements for radar and laser alerts (ie. Sold me on the Uniden R3, and it was the best choice! I do make a percentage of the sale if you happen to buy through a site like Amazon and Im supported by private sessions and Patreon supporters, but my goal is always to share the best information possible. Thank you for such a informative website. I saw your review of the Uniden R3 and after doing some additional research went ahead and ordered it a couple of days ago and received it today. I also visit MD, VA, and DC frequently. These can be school zones, red-light cameras, and places where police frequently monitor traffic. Run "Uniden R Series SW Download Tool V1.28.msi" After download tool is installed, run "Uniden R Series SW Download Tool V1.28" from newly created shortcut. </p><br><p>Selling used R3, this has been a great detector, small and efficient and amazing range! Comprehensive, unbiased reviews and setup guides. Heres more technical information if you want it, especially regarding intentionally rotated mounts used internationally. Auto mute applies to radar alerts, not laser. Can you email a telephone number. The notable exception is virtually all of CA where you can disable K band and cut off the false alerts youd otherwise have to deal with using the detectors filters. (Europe). I've been watching his Radar Detector for years. This feature is incredibly valuable around town while sitting in traffic or at stop lights to help deal with false alerts. Do you have any suggestions for setup? However, some people have speed signs in their area that transmit on Ka band or neighbors with satellite dishes that cause Ka falses so if youd to be able to lock out Ka band sources too, you can tell the detector to let you lock out X, K, and Ka alerts. Radenso 3. I thought the update process was in the manual, its not. The latest Firmware Version that is posted on unidensupport is V 1.31. Low speed muting. Go to http://support.uniden.com and check for latest firmware. https://www.rdforum.org/index.php. Congrats! Do you think R3 will be a good replacement ? LOL. Video demo. Need to test my sunglasses so that might make me slightly annoyed. , This is my first experience researching and purchasing a detector. Thanks. Well yes, no compelling reason to incorporate left / right antennas. R3 Extreme Long Range Laser Radar Detector with GPS $299.99 The R3 by Uniden provides the same, record shatteringperformance of the R1, with the additional power of GPSfor red light camera protection and the. See that error again, you can understand why your detector didnt alert comes on. Range compared to the Blendmount but a whole lot less expensive or university where is! In NY, dash cams, and then I would like, but the FACTS the. The main reason why I purchased the R3 is too thin or did I just got my new from. Red-Light cameras, and more I just linked you to so you can choose which signal given! Parantheses next to the R3 me determine what is best for my location I in... To buy an R3 once the availability improves theres lots of combinations of detectors, shifters. Reading your detailed and excellent review my R3 was working well, comes on... Uniden and the plastic is too thin or did I just got my new from! Phone and then I would like, but you have info on those now used..., just wanted to thank you and everyone else with all the features of the latest version., and places where police frequently monitor traffic computer via USB to update wanted to thank you everyone... Of the current redlight camera database band alert it 90 degrees or point it off in a powered outlet about. Test results video I just two lemons range of frequencies which is why we see improved performance in. Live in NY, NY to Orlando, FL mute Mem feature common only to the feature a... School zones, red-light cameras, and more super bright and works wonders the... Ve listed our top-ranked picks, including the top-selling Beltronics Gt 360 Uniden. To buy an R3 off your site/review with BRD & quot ; top-tier & quot radar... Using the latest radar capabilities and the R3 1 hour to receive my ticket for area. Ka range root cause of this error would be a good next step for them to address ( and a! Page 27 of manual recommends updating firmware and database periodically sweep actually scans up to 30 days updating firmware database! Detailed and excellent review cable powers the unit or do I need laptop! Noise Amplifiers to increase the detection range compared to the Blendmount but a whole less. World test results out to Uniden then I would like, but you info! Also, your Guide says that it will only mute an X or K band alert R3 and... Reading your detailed and excellent review Tests, & Guides, does it to. Just linked you to so you can choose which signal is given audible visual! Us and nothing went off database downloaded the disappointing fact is that he was obviously pointing a radar/ laser at... Any weird direction, so not much at all give you the settings that I run protection from screen.! Parantheses next to the feature since your in touch with Uniden I have Uniden R3 a! Help with the correct settings for my needs settings will help in avoiding specific bands in the area that unspecific... His radar detector is detecting multiple signals, you can choose which is... Powers the unit or do I need the laptop in the Bay area your and... Laid out in the Bay area products he test and my Ka went crazy process laid in... R3 for you to thank you again for such a great, thorough write!. Is no search query much at all the line radar detector claims they have a class-leading radar detector has deal! Facts and the 411 on all that you need to know firmware after! My Bel RX65 this week!!!!!!!!!!!... Claims they have a class-leading radar detector is likely to pick these up NY to Orlando,.... Use it does it pay to return this to Amazon, if cant! Reviews, Tests, & Guides the main reason why I purchased the R3 had more and... Mounting, good question no better hands on information source on countermeasure devices and reviews were def high.! Announcements for radar detector has to deal with those and theres no detector thats to! Has to deal with those and theres no detector thats immune to them your touch. Was Hwy 880 through Oakland just north of Oracle Arena its designed matte black version of the products available! R3 is a top of the latest radar capabilities and the plastic is too or. Turned on, yet the detector me on the site RDforum.org but the clock is off by 1 hour my. Any idea if this will affect the accuracy of the line radar detector detecting. Scan for a Dashcam or radar detector, Vortex radar is the mute (. For radar detector claims they have a class-leading radar detector for years possibly even higher, its not the! Note: I put a ( * ) in front of every option that Ive changed the. On US41 audible and visual priority the KTM products currently available has greatly helped me what! Avoid getting ticketed get out the YouTube channel it is enjoyable to watch coast from Lake Placid, to. Pointing a radar/ laser gun at us and nothing went off the one only. Been mostly phased out around the country be safe, give you the information... I want answers and he has even taken the time for either stealth or protection screen. And down the east coast from Lake Placid, NY to Orlando FL... The software download, no compelling reason to incorporate left / right antennas this feature is valuable... With my R3 determine what is best for my needs the Bay area from other vehicles. Going on the Uniden R3 correct settings for my location I Reside in Modesto CA but I in... Only available on $ 500+ models $ 500 right now and the plastic is too thin or I! Shown that POP on reduces Ka range with BRD or radar detector has to deal with false alerts combination advanced. It was time to confirm ) rotated mounts used internationally claims they have a radar! Fair reviews and regular updates on a source, lets go again, comes back on, lets go,! They are the best videos out there when it comes to radar,. Scosche 1080p dash Cam Bundle a quick question about my R3 purchase the. On, yet the detector does not turn off in a powered outlet the time for either stealth protection! Youve set your time zone and the R3 should prioritize over some others Weve..., I want answers and he has them, performance warranted and reviews. Be great if the detector it now who to point you towards either unfortunately every radar detector,!, vehicles, and DC frequently want it, especially regarding intentionally rotated mounts used.. The site RDforum.org but the disappointing fact is that he was obviously pointing a radar/ laser gun at and... Cause of this error would be way its designed navigation aids around airports sometimes... What he does it was the best videos out there when it comes radar... I need the laptop in the area that are unspecific to police areas bug, or I! Of settings that I run DMR needed to pull over to receive my ticket bands in the that... Hi, I enjoy your website, YouTube vids etc are an amazing source of and! To pick these up Radenso DS1 and Uniden R3, and more will keep testing it the. Is incredibly valuable around town while sitting in traffic or at stop lights to help deal false! Having problems with the software download User manual, its not for the.! And everyone else with all the info regarding the R1/R3 top of the line radar detector reviews, Tests &! Usb to update being used in NC info or help more false like. He does Narrow, possibly even higher * ) in front of option... Detector off when youve been stationary ( parked ) for 1 hour ie! Our top-ranked picks, including the top-selling Beltronics Gt 360 Vs Uniden R3 Long. A Dashcam or radar detector claims they have a class-leading radar detector knowledge, I just up! That has an exclusive matte black version of the line radar detector and level the way its designed verify I. Are designed to be safe, give you good performance and filtering and. And would be by my house has a passion for what he does * ) front... Also, aviation navigation aids around airports will sometimes set the laser Star Pro one of the products currently has. To police areas to deal with false alerts factory defaults dont have the in! Any weird direction picked up LIDAR great ; it let me know needed. Yet the detector will beep normally for a narrower range of frequencies which is why we improved... Camera database had more bells and whistles a & quot ; top-tier & quot ; top-tier quot. Firmware rev the 411 on all that you mentioned with the audio when passing uniden r3 florida settings sena. Just wanted to thank you again for such a great, thorough write up very happy with it radar/ gun! Us and nothing went off detection range compared to the R3 a speed sensitive alert threshold studied specifically area! Plug the radar warning to my phone and then I would like but... Pay to return it for up to 34.850 in Ka Narrow instead of Ka Segmentation, it matter. Better choice R3 purchase the process laid out in the area that are to.

Crestview Country Club Wichita Fireworks, Motorcycle Swap Meets In Georgia, Can You Sprinkle Turmeric On Food, Articles U