VHFradioliikenteellä

VHFradioliikenne refers to radio communication using very high frequency (VHF) waves. This part of the radio spectrum, typically ranging from 30 MHz to 300 MHz, is widely used for various communication purposes due to its characteristics. VHF waves tend to travel in straight lines, similar to light, and are not significantly affected by atmospheric conditions. This makes them suitable for line-of-sight communication, meaning the transmitting and receiving antennas need to be within each other's view.

One of the most common applications of VHFradioliikenne is in maritime and aeronautical communications. Ships and aircraft rely on VHF radios to communicate with each other and with shore stations or air traffic control. This allows for collision avoidance, navigation, and coordination. Another significant use is in land mobile radio systems, employed by emergency services like police and fire departments, as well as by taxi companies, construction crews, and other businesses that require reliable two-way communication over short to medium distances.

Amateur radio operators, also known as ham radio operators, also utilize VHF frequencies for their hobby, enabling them to communicate with other enthusiasts locally and, under certain conditions, over longer distances through atmospheric ducting or by bouncing signals off the ionosphere. The simplicity and reliability of VHF radio technology have made it an enduring and essential part of modern communication infrastructure.