VHF (Very High Frequency)
In the maritime context, VHF (Very High Frequency) refers to a range of radio frequency electromagnetic waves from 30 to 300 MHz, with corresponding wavelengths of ten to one meters. VHF is commonly used for marine communications to avoid the interference that can plague AM frequencies in urban areas, allowing for clearer signals and better communication. VHF radios are used on all large ships and most seagoing small craft. They are used for a variety of purposes, including summoning rescue services and communicating with harbors, locks, bridges, and marinas. A marine VHF set is a combined transmitter and receiver and only operates on standard, international frequencies known as channels. Channel 16 (156.8 MHz) is the international calling and distress channel. The maritime mobile service identity (MMSI) number associated with the ship's VHF radio can also be used to identify the ship in case of emergency.
Your Previous Searches
Random Picks
- EPIRB: An Emergency Position Indicating Radio Beacon (EPIRB) is a distress beacon used in maritime emergencies to alert search and rescue services. When activated, the EPIRB sends a distress signal via satellite to a rescue coordination center, wh ... Read More >>
- Detergents: Detergents are cleaning agents that are used to remove dirt, oil, grease, and other contaminants from surfaces. In the maritime context, detergents are commonly used for cleaning the exterior and interior surfaces of ships, boats, and other ... Read More >>
- Baleen Whales: Baleen whales, also known as Mysticeti, are a group of marine mammals that belong to the order Cetacea. They are characterized by their baleen plates, which are used to filter small organisms, such as krill and plankton, from the water. Bal ... Read More >>
Top News
Captain Cook's Endeavour confirmed to be in Rhode Island waters...
The location of the HMS Endeavour, a lost ship belonging to 18th-century British explorer Captain James Cook, has been confirmed as Rhode Island's Newport Harbor....
News Source: CBS News on 2025-06-17
Mapping Iran’s oil and gas sites and those attacked by Israel...
Iran is a top 10 oil and gas producer, making its energy sites crucial to both regional and global markets....
News Source: Al Jazeera English on 2025-06-17
Ships collide in Hormuz Strait in shadow of Israel-Iran war...
Incident in strategic waterway said to be 'not security related' despite potential effects of conflict....
News Source: Al Jazeera English on 2025-06-17
How else could Iran retaliate over the ongoing Israeli strikes targeting the cou...
As Israel pounds Iran with airstrikes targeting military facilities and its nuclear sites, officials in Tehran have proposed a variety of steps the Islamic Republic could take outside of launching ret...
News Source: ABC News on 2025-06-17
Wall Street isn’t freaking out about Israel and Iran yet. The Strait of Hormuz...
Global markets have remained relatively calm amid the escalating tensions between Israel and Iran. But that sentiment could quickly shift, according to experts, if the conflict affects the Strait of H...
News Source: CNN on 2025-06-17