--- product_id: 258880797 title: "B-Tech Authentic Genuine Nagoya UT-308UV 21-Inch Magnetic Mount VHF/UHF (144/430Mhz) Antenna SMA-Female for and BaoFeng Radios" brand: "b-tech" price: "VT26713" currency: VUV in_stock: true reviews_count: 5 category: "B Tech" url: https://www.desertcart.vu/products/258880797-b-tech-authentic-genuine-nagoya-ut-308uv-21-inch-magnetic store_origin: VU region: Vanuatu --- # Dual-Band VHF/UHF 137-174 & 400-520 MHz SMA Female Connector with Jumper Included Strong Rare Earth Magnetic Base B-Tech Authentic Genuine Nagoya UT-308UV 21-Inch Magnetic Mount VHF/UHF (144/430Mhz) Antenna SMA-Female for and BaoFeng Radios **Brand:** b-tech **Price:** VT26713 **Availability:** βœ… In Stock ## Summary > πŸ“‘ Stay Connected, Stay Ahead β€” The Ultimate Antenna for the Modern Communicator ## Quick Answers - **What is this?** B-Tech Authentic Genuine Nagoya UT-308UV 21-Inch Magnetic Mount VHF/UHF (144/430Mhz) Antenna SMA-Female for and BaoFeng Radios by b-tech - **How much does it cost?** VT26713 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/258880797-b-tech-authentic-genuine-nagoya-ut-308uv-21-inch-magnetic) ## Best For - b-tech enthusiasts ## Why This Product - Trusted b-tech brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Dual-Band Powerhouse:** Seamlessly switch between VHF and UHF frequencies for unmatched communication clarity. - β€’ **Weatherproof Warrior:** Built to withstand the elements, ensuring reliable performance rain or shine. - β€’ **Magnetic Mount Mastery:** Effortless installation with a rare earth magnet base that sticks securely to any metal surface. - β€’ **Omni-Directional Reach:** 360Β° signal reception keeps you connected from every angleβ€”never miss a beat. - β€’ **Universal Compatibility:** Works flawlessly with BaoFeng and Any Tone radios, expanding your communication arsenal. ## Overview The B-Tech Nagoya UT-308UV is a 21-inch stainless steel, dual-band VHF/UHF antenna featuring a strong rare earth magnetic mount and SMA female connector with jumper cable. Designed for reliable, omni-directional communication in emergency or everyday scenarios, it’s weatherproof and compatible with popular BaoFeng and Any Tone radios, making it a must-have for professionals who demand clear, uninterrupted signals. ## Description In an emergency or survival situation person would love to have access to their vehicle. Having transportation during disaster can greatly improve your ability for survival. One of the other pillars of survival includes communication. During situations such as these it is important for people to maintain communications. Reliable communications means awareness of current guidelines and safe zones or other information such as weather. In some vehicles the use of scanner or ham radio is severely hampered because of the metal interfering with the reception of the signal. The incredible amount of power in your handheld unit suddenly drops to nothing more than regular FRS radio. That is where the Nagoya UT-308UV 21-Inch Magnetic Mount Antenna enters the survival game and saves the day. Review: The antenna had different thread spacing and would not attach to my NMO antenna mount. Disappointing. Review: Very nice unit. Loss is at normal level for vhf/uhf. Would be nice if they use lower loss cable. Yes, make the coax thicker but I could live that. ## Features - SMA Female Connector, includes SMA jumper, Dual-Band VHF & UHF (137-174, 400-520 MHz), Weatherproof, Strong Rare Earth Magnet Base - Easy To Install, Omni-Directional, Requires Metal Ground Plane, Measures 22 inches, Stainless Steel Antenna - Compatible with the Any Tone: TERMN-8R, OBLTR-8R, NSTIG-8R, and ANILE-8R - To avoid counterfeit Nagoya models - insure your listing shows "sold by BaoFeng Tech" ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00XQ9H9OC | | AntennaDescription | VHF/UFH (144/430 MHz) antenna | | Best Sellers Rank | #52,122 in Electronics ( See Top 100 in Electronics ) #56 in Audio & Video Antennas #6,018 in Home Audio Accessories | | Brand | B-Tech | | Color | Black | | Customer Reviews | 4.3 4.3 out of 5 stars (1,412) | | Global Trade Identification Number | 00685256254843 | | Impedance | 50 Ohms | | Item Dimensions L x W x H | 53L x 53W x 53H centimeters | | Item Weight | 0.4 Pounds | | Manufacturer | BTECH | | UPC | 685256254843 | | Unit Count | 1.0 Count | ## Product Details - **Antenna:** VHF/UFH (144/430 MHz) antenna - **Brand:** B-Tech - **Colour:** Black - **Impedance:** 50 Ohms - **Product dimensions:** 53L x 53W x 53H centimeters ## Images ![B-Tech Authentic Genuine Nagoya UT-308UV 21-Inch Magnetic Mount VHF/UHF (144/430Mhz) Antenna SMA-Female for and BaoFeng Radios - Image 1](https://m.media-amazon.com/images/I/41hF-d730xL.jpg) ## Questions & Answers **Q: Antenna newbie here. It says "Grounded" metal plane, does that mean metal has to be touching the ground (earth) or is a metal object on roof ok?** A: "Grounded" metal plane depends on what band antenna you are talking about. For 2 meter and higher frequencies with mobile applications on vehicles, the metallic vehicle body serves as the ground plane. The antenna needs a 1/4 wavelength radius circle of metal at the base of the antenna to serve as a ground plane. This is easily accomplished on most vehicles. HOWEVER, the lower in frequency you go, the more difficult this is to obtain. As a result, antenna tuners may be needed to tune the radio to the antenna. Base station antennas are either of a vertical or horizontal design/polarization. Most HF verticals need a ground plane under them, usually buried under ground. Horizontal HF antennas do not usually use a ground plane if they are mounted at least 40 feet above ground. VHF/UHF antennas, both horizontal and vertical, usually use the metal mast it is mounted to as a ground plane. Horizontal beam antennas also have their own builtin "ground plane" in the antenna design.. Height above ground for these antennas is not important, EXCEPT if you are trying for more coverage area. **Q: The title says "144/430" but the description says it will go up to 520mhz?** A: It will work there, but not at top efficiency.. Most likely the antenna is tuned for the middle of the 440 band (430), and the middle of the 2 meter band (144).. **Q: Will this work as a base station antenna?** A: I don't see why it would not work. It's better than the small 'rubber duck'. However you may wish to consider a physically longer unit 1-2 meters (3-6ft) antenna that can be permanently secured. **Q: Is this antenna waterproof and can it take the hot sun during the summer time?** A: I live in extreme Northern Maine on the Canadian border on the US side. We get temperature extremes -50 in the winter and we can certainly get up to 95 in the summer. Mine has served me well in all weather extremes, and I am about to purchase another one, not that mine is broken, but to add a second radio for APRS use. ## Customer Reviews ### ⭐ Review *by M***B on 12 August 2023* The antenna had different thread spacing and would not attach to my NMO antenna mount. Disappointing. ### ⭐⭐⭐⭐⭐ Review *by A***Y on 24 July 2025* Very nice unit. Loss is at normal level for vhf/uhf. Would be nice if they use lower loss cable. Yes, make the coax thicker but I could live that. ### ⭐⭐⭐⭐⭐ Review *by Y***Y on 12 May 2024* Got this ground plane kit to test on my mobile rig. Tested this two different Comet antenna. One is a Comet CSB790A and a Comet CA-2x4SR. Both are dual banders. Though these antenna are mounted on a 1"x2" extrusion style rack. Though I have a decent grounding from the rack to the steel roof on my 1999 Toyota 4-Runner. This ground plane kit helps with the SWR a tad bit. On the Comet CSB790A antenna. It's a UHF style and I got a NMO adapter for the antenna mount. So with that being said. I tested the SWR and wattage output from my ICom 2730A mobile radio with the MARS mod using a Surecom SW102 meter and a Sysjoint NanoVNA-F V3 analyzer. One to test the harmonics and resonance of both antenna on 2m and 70cm bands. Both were tested on the 2m and 70cm calling frequency. Was able to make several contacts about 40+ miles away with full quieting. This kit did improve a tab but nut I don't plan on using this while being mobile. This kit best work on attaching the supplied stainless steel bracket to a post or pole using two supplied heavy duty hose clamp where there's no flat metal object to use a ground plane. I haphazardly attached this to my wooden fence and it did to reduce and lower the SWR quite a bit. Everything helps when you're trying to make that connection either simplex or trying to hit that long distance repeater long distant away. Also Nagoya said you can use this while mobile but my highly not the SWR don't help much or at all. But word of caution is that if you wish to use this while driving. I would recommend use medium strength thread locker on the hardware before you start driving. Great ground plane kit with no issues other than the set screw is small. I almost 4 of them. I would recommend this to any mobile HAM operatiors especially when you're at park with just a wooden post or tree you can attach the bracket to. ## Frequently Bought Together - B-Tech Authentic Genuine Nagoya UT-308UV 21-Inch Magnetic Mount VHF/UHF (144/430Mhz) Antenna SMA-Female for and BaoFeng Radios - HYS Battery Eliminator Car Charger for Baofeng Dual Band FM Transceiver Radio UV-5R UV-5R+ UV-5RA UV-5RA+ UV-5RB UV-5RC UV-5RD UV-5RE UV-5RE Plus Walkie Talkie - Retevis Overhead Noise Reduction Walkie Talkie Headset 2 Pin, Boom Mic, Compatible with Retevis RT22 RT21 H-777 RT68 RT19 Baofeng UV-5R BF-F8HP BF-888S, Two Way Radio Headset for Camera Team(1 Pack) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vu/products/258880797-b-tech-authentic-genuine-nagoya-ut-308uv-21-inch-magnetic](https://www.desertcart.vu/products/258880797-b-tech-authentic-genuine-nagoya-ut-308uv-21-inch-magnetic) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-05*