Frequency:156-163MHz;Gain:3.5dBi,High-gain antennas can keep you in touch. The marine radio antenna is made of glass fiber material, waterproof and corrosion resistant, and has a long service life. This vhf marine antenna is compatible with all VHF marine radios. It is perfectly compatible with many brands and models, including: M330 series, M506, M25; GX1400, GX1700, GX2000; MR F45-D, MR HH600; UM385, UM385BK, UM435BK; Ray73, Ray91, and other VHF marine radios equipped with a standard SO239 connector. This marine antenna effectively enhances the signal strength and clarity of VHF radio. Suitable for ATVs, boats, campervans, go-karts, motorhomes, pontoon boats, sailboats, tractors, trailers, UTVs, yachts, etc. Packing Listing: One VHF Marine Boat Antenna、7 meters /23 ft RG58 Coaxial Cable、One Adjustable Antenna Base. Parameter ：
1.Working Frequency:156-163MHz
2.Antenna Gain:3.5dBi
3.VSWR : ≤1.5
4.Maximum Power (W) : 50 W
5.Polarization：Vertical
6.Connector type : UHF-Male
7.Weight(g)：1.2kg
8. Length:41Inch
9. Impedence : 50 Ω
10. Cable length : 4.5 meters /18 ft
11. Waterproof grade：IP67
12.Operating temperature（℃）：-40℃~80℃