PowerBoat Reports named this the top 4' VHF antenna! Its shorter length, standard mounting, and excellent range make it perfect for small boats, high - speed boats, and sailboats. Features include a stainless - steel ferrule, high - gloss urethane finish, powerful brass radiators, soldered connections, a ferrite choke bead, 15' of exclusive low - loss, UV - stable RG - 8X marine cable, a factory - installed mini - UHF connector, and a 1' - 14 threaded base. It has a max input power of 250 Watts, VSWR of 1.2:1 @ 156.8, and a bandwidth VSWR < 2.0:1 of 4 MHz. Also, find matching cellular antennas (563 - CW: 4' White 9dB Gain, 563 - CB: 4' Black 9dB Gain) and AM/FM antennas (531 - AW: 4' White, 531 - AB: 4' Black).
Using this antenna is easy. First, mount it on the 1' - 14 threaded base of your boat. Make sure the connection is tight. The included 15' of low - loss, UV - stable RG - 8X marine cable can be connected to your device using the factory - installed mini - UHF connector. When in use, keep in mind that the max input power is 250 Watts, so don't exceed this limit. For maintenance, regularly check the soldered connections and the stainless - steel ferrule for any signs of wear. Clean the high - gloss urethane finish with a mild cleaner. Store the antenna in a dry place when not in use to prevent damage from the elements.
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