“VHF communication is based on line of sight, not power output,” says Jason Kennedy, executive vice president for Standard Horizon. All fixed-mount VHF marine radios are limited to 25 watts of transmission power. However, installing the antenna as high as possible enables you to make the most of it. The higher the antenna, the farther you can talk and listen, Kennedy says. For many boats, the ideal mounting location is on a hardtop or T-top, using a ratchet mount so the antenna folds down for trailering and running under low bridges. Mounting the antenna on a tower gives you even greater range, allowing you to communicate at distances that vessels without tower-
mounted antennas only hope to achieve.