How Does VHF Radio Work?
Line of Sight Very high frequency (VHF) radios work on a premise of reception known as line of sight. Line of sight is the ability of the radio to receive signals in a straight line depending on the environment the VHF radio is operating in. There are many things that can affect the VHF radio’s ability to receive or transmit signals such as buildings, mountains, hills and other terrain that can keep the radio from sending a signal in a straight line. Mounting your antenna as high as possible such as the highest mast on a boat or standing at the highest point possible in the surrounding terrain will make it easier to surmount the problem line of sight reception and transmission can present. Antennas and Types of VHF Radios There are two main types of VHF radios to choose from for functionality purposes and they are each slightly different in structure. Fixed mount VHF radios are by name, attached to a static location such as a wall, or dashboard of a ship. These types of VHF radios are
