--- 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: "532.37 DT" currency: TND in_stock: true category: "B Tech" url: https://www.desertcart.tn/products/258880797-b-tech-authentic-genuine-nagoya-ut-308uv-21-inch-magnetic store_origin: TN region: Tunisia --- # Dual-Band VHF/UHF 137-174 & 400-520 MHz SMA Female Connector + SMA Jumper Included Strong Rare Earth Magnet 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:** 532.37 DT **Availability:** ✅ In Stock ## Summary > 📶 Stay Connected, Stay Ahead — The Ultimate Survival Signal Booster ## 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?** 532.37 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/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 - • **Magnetic Mount Mastery:** Powerful rare earth magnet base guarantees effortless, secure installation on any metal surface—no tools, no hassle. - • **Unmatched Signal Reach:** Dual-band coverage ensures crystal-clear communication across VHF and UHF frequencies, keeping you connected when it matters most. - • **Plug & Play Compatibility:** Includes SMA female connector and jumper cable, perfectly tailored for BaoFeng and Any Tone radios—get on air instantly. - • **Built to Brave the Elements:** Weatherproof stainless steel design means your antenna performs flawlessly rain or shine, storm or calm. - • **Omni-Directional Excellence:** 360° signal reception maximizes your communication range without repositioning—stay ahead in any scenario. ## Overview The B-Tech Nagoya UT-308UV is a 21-inch dual-band VHF/UHF magnetic mount antenna designed for BaoFeng and compatible radios. Featuring a strong rare earth magnet base, weatherproof stainless steel construction, and SMA female connector with jumper cable, it delivers reliable omni-directional signal reception across 137-174 MHz and 400-520 MHz frequencies. Ideal for emergency communication and outdoor use, it ensures superior performance even in challenging environments. ## 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. ## 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 | #21,742 in Electronics ( See Top 100 in Electronics ) #18 in Audio & Video Antennas #2,340 in Home Audio Accessories | | Brand | B-Tech | | Color | Black | | Customer Reviews | 4.4 4.4 out of 5 stars (1,422) | | 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 | | Mfr Part Number | Nagoya UT-308UV | | Model Number | Nagoya UT-308UV | | Number of Items | 1 | | 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. ## 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? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/258880797-b-tech-authentic-genuine-nagoya-ut-308uv-21-inch-magnetic](https://www.desertcart.tn/products/258880797-b-tech-authentic-genuine-nagoya-ut-308uv-21-inch-magnetic) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-21*