The Shakespeare SeaWatch series of TV antennas are omni-directional over-the-air digital HDTV solutions that bring sleek lines and 360 high-performance coverage to your watercraft. Designed to accept common 1"-14 threaded mounts, the antennas are well suited to fit virtually any application. Everything needed to connect the antenna to your converter or television is in the box. When paired with an optional 2-way band separator between the antenna and the amplifier, these antennas can also receive AM/FM radio signals. A full line of mounts and extension masts are available to fine-tune the installation. The 3019 antenna is designed for the mobile lifestyle and can be used on marine vessels, RVs, pop-up campers and more. Watch your favorite sports, sitcoms, reality TV, crime dramas, local news, weather, kids programming and more for FREE and in 1080 HD!Effective Range: Up to 75 milesPortable: NoCableLength: 20"Mount: 1"-14 thread base; mount not includedPower Source: USB/AC/DCHDReady: YesDimensions: 15" x 3"Warranty: Two Years