Dual Band VHF UHF Ham Radio Antenna 136-174MHz / 400-520MHz Magnetic Mount Mobile Antenna with PL259 Male & SMA Female Adapter for BTECH ICOM Kenwood Midland Yaesu TYT AnyTone Transceiver

Descripción

Product description Are you tired of weak signals, dropped contacts, and limited range from your mobile ham radio‘s stock antenna? The Dual Band VHF/UHF Magnetic Mount Antenna is the upgrade you‘ve been looking for. Designed specifically for amateur radio operators on the go, this complete kit delivers reliable, long-range communication across both VHF and UHF bands. Everything you need is in the box: antenna with pre-attached 3m RG58/U cable, PL259 male connector, and an SMA Female to SO239 adapter – so you can connect to virtually any radio, whether it has a PL259 or SMA antenna port. KIT INCLUDES 1x Dual Band VHF/UHF Magnetic Mount Antenna (47cm height, 280g)1x 3m (10ft) RG58/U Low-Loss Coaxial Cable (pre-attached)1x SMA Female to SO239 (UHF Female) Connector Adapter Technical Specifications VHF Frequency Range 136-174 MHz (2-meter band) UHF Frequency Range 400-520 MHz (70cm band) Antenna Height 47 cm / 18.5 inches Antenna Weight 280 g (0.62 lbs) Gain 15 dBi nominal Connector (Cable) PL259 Male (UHF Male) Included Adapter SMA Female to SO239 (UHF Female) Cable Type 3m / 10ft RG58/U low-loss coaxial Mounting Magnetic base Radiation Pattern Omnidirectional (360°) VSWR ≤ 1.5 Impedance 50 Ohms Max Power 100W (PEP) Operating Temp -30°C to +70°C Unlike permanent NMO mounts that require drilling holes in your vehicle‘s roof, a magnetic mount antenna offers tool-free installation and removal. This makes it perfect for: Renters or leased vehicles – No permanent modificationsMultiple vehicle users – Move the antenna between your car, truck, and SUVTemporary setups – Remove the antenna when entering low-clearance garagesEmergency preparedness – Keep it in your go-bag for rapid deployment Direct connection (PL259 to SO239): BTECH UV-50X2, UV-25X2, 50X1ICOM IC-2730A, IC-2300H, IC-208HKenwood 281A, V71A, D710GAYaesu FT-2900R, FT-7900R, FT-857D, 300DRMidland MXT115, MXT275, MXT400TYT TH-7800, TH-9800AnyTone AT-778UV, AT-5888UV, AT-6666 With included SMA Female to SO239 adapter: ICOM ID-51A, IC-T10, IC-V86Kenwood TH-D74A, TH-D75AYaesu FT-60R, FT-70DR, FT-5DRBTECH GMRS-V1, UV-5X3, UV-82HPTYT UV-88, MD-UV390AnyTone AT-D878UVMost SMA-female handheld transceivers Step 1: Choose the Right Mounting LocationFor optimal performance, mount the antenna on the center of your vehicle‘s metal roof – this provides the largest ground plane. Secondary options: trunk lid, hood, or roof rack (if metal and properly grounded). Avoid mounting near roof racks, light bars, or other obstructions. Step 2: Clean the Mounting SurfaceWipe the area with a clean, dry cloth to remove dust and moisture. A clean surface ensures maximum magnetic grip and prevents scratching. Step 3: Position the AntennaPlace the magnetic base firmly on the metal surface. The magnet will hold it securely. Ensure the antenna is vertical for best radiation pattern. Step 4: Connect to Your Radio For radios with SO239 (UHF Female) jack: Connect the PL259 male connector directly.For radios with SMA female jack: Attach the included SMA Female to SO239 adapter first, then connect the PL259 connector.Hand-tighten only – do not use tools. Step 5: Route the CableRoute the 3m RG58/U cable through a window, door seal, or existing cable entry point. Avoid sharp bends or pinching that could damage the coaxial cable. Secure excess cable with cable ties. Step 6: Test Your SWRBefore transmitting, always check your Standing Wave Ratio (SWR) with an SWR meter. A properly matched antenna (SWR < 2.0) protects your radio‘s final amplifier from damage. Adjust antenna position if SWR readings are high. Ground Plane RequirementsMost mobile antennas require a metal ground plane under the antenna for proper operation. Magnetic mount antennas use capacitive coupling with the vehicle‘s metal body to create an effective counterpoise. For best results, ensure the antenna is mounted on a large, continuous metal surface. Mounting on non-metal surfaces (fiberglass roofs, plastic panels) will result in poor performance. Do NOT transmit without checking SWRTransmitting with a high SWR (Standing Wave Ratio) can damage your radio‘s final amplifier. Always verify SWR readings before full-power operation. Magnetic Base CautionThe magnetic base is strong – use care when removing to avoid pinching fingers. To remove, tilt the base slightly to break the magnetic seal rather than pulling straight up. Cable ProtectionAvoid running the coaxial cable through moving parts (windows, doors) where it could be pinched or cut. The RG58/U cable is durable but not designed for repeated crushing. Weather ProtectionWhile the antenna is weather-resistant, the connector junction should be protected from direct water exposure. Use weatherproofing tape or silicone grease on the connection point for permanent installations. See More

Características

• 🔹 DUAL BAND VHF/UHF COVERAGE – FULL AMATEUR BANDWIDTH Covers VHF 136-174 MHz (2-meter band) and UHF 400-520 MHz (70cm band) , providing complete compatibility with most amateur radio frequencies. VSWR ≤ 1.5 ensures efficient power transfer and minimal signal loss. The antenna height is 47cm (18.5 inches) – compact enough for low-clearance garages yet long enough for optimal reception.
• 🔹 STRONG MAGNETIC BASE – SECURE TOOL-FREE MOUNTING The heavy-duty magnetic base (280g total antenna weight) provides strong holding power on any ferrous metal surface – vehicle roof, trunk lid, hood, or truck bed rail. The base features a protective rubber ring to prevent scratching your vehicle‘s paint. Tested to stay secure at highway speeds up to 120km/h (75mph). No drilling, no permanent modifications – simply place on a metal surface and you‘re ready to go.
• 🔹 PL259 MALE CONNECTOR + SMA FEMALE ADAPTER – UNIVERSAL COMPATIBILITY Features the industry-standard PL259 (UHF Male) connector with 3m / 10ft RG58/U low-loss coaxial cable pre-attached. Includes an SMA Female to SO239 (UHF Female) adapter, allowing connection to radios with either PL259 or SMA antenna jacks. This plug-and-play design connects directly to most mobile ham radios, base stations, handhelds (via adapter), and scanners.
• 🔹 PREMIUM CONSTRUCTION – DURABLE & WEATHER-RESISTANT Built with high-quality materials to withstand the rigors of mobile operation. The flexible, spring-loaded whip antenna absorbs shocks from road bumps, low-hanging branches, and car washes without breaking. Weather-resistant design ensures reliable performance in rain, snow, and extreme temperatures (-30°C to +70°C). The 47cm (18.5-inch) whip provides an excellent balance of performance and low profile.
• 🔹 OMNIDIRECTIONAL RADIATION PATTERN – 360° COVERAGE Features an omnidirectional radiation pattern, allowing the antenna to receive and transmit signals from all directions. This eliminates the need for precise aiming – ideal for mobile use where your vehicle is constantly changing direction relative to the repeater or base station.
• 🔹 WIDE COMPATIBILITY – WORKS WITH MAJOR HAM RADIO BRANDS Compatible with popular mobile ham radio transceivers and handhelds (with included adapter) from leading manufacturers: BTECH: UV-50X2, UV-25X2, GMRS-V1 ICOM: IC-2730A, IC-2300H, ID-5100A, plus handhelds with SMA Kenwood: TM-281A, TM-V71A, TH-D74A (with adapter) Midland: MXT115, MXT275, MXT400 Yaesu: FT-2900R, FT-7900R, FTM-300DR, FT-60R (with adapter) TYT: TH-7800, TH-9800 AnyTone: AT-778UV, AT-5888UV, AT-6666
• 🔹 ⚠️ INSTALLATION & GROUND PLANE TIPS For optimal performance, mount the antenna on a large metal surface (vehicle roof is ideal) – the metal surface acts as a counterpoise/ground plane. Before transmitting, always check your Standing Wave Ratio (SWR) with an SWR meter. A properly matched antenna (SWR < 2.0) protects your radio‘s final amplifier from damage.

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