• Marine GPS antenna for use on boat or at base;• Gain: 30 dB;• 1 in. x 14 thread standard marine mounting;• 23 ft. RG58A/U coaxial cable with BNC-male connector;• Includes Tram #1631 ratchet mount;• 8 in. tall;Length: 12.10"Width: 7.75"Height: 4.00"