The FMUSER CB Base Station Antenna is a game-changer for CB radio enthusiasts and professionals alike. With its powerful 3.5dB gain, this antenna extends the signal reception and transmission range, ensuring clearer communication and better coverage, even in challenging outdoor environments. It doesn't stop there - the low VSWR of this antenna greatly enhances the durability and lifespan of your CB radio system. By minimizing signal reflections and optimizing power transfer, it reduces strain on your equipment, protecting it from potential damage and ensuring long-term functionality. Specifications Frequency: 27MHz Impedance: 50 ? VSWR: <1.5 Gain: 3.5 dBi Polarization: Vertical Maximum Power Input: 150W Horizontal 3dB Beam Width: 360° Vertical 3dB Beam Width: 52° Lightning Protection: Direct Ground Dimension: 5.22m Diameter of Hardware-supplied: Ø40 mm Radiating Element Material: Aluminum Alloy Connector Type: SL16-K?UHF?