Maritime Radio Frequency Table

radio marine -

Maritime Radio Frequency Table


The wireless walkie-talkies that carry out wireless communication on maritime ships and on shore are called marine wireless walkie-talkies, also called ship radios. The marine walkie-talkie is a very professional walkie-talkie. Its use environment is harsh, the ship has a wide range of activities, and the sea temperature changes greatly. To meet the needs of global maritime safety navigation, its product design is very professional, and the working frequency is also unified. International maritime communications uniformly stipulate the working frequency range of marine intercoms.

VHF maritime radio frequency division

The wireless walkie-talkie that is dedicated to the maritime ship and the shore for wireless communication is called the marine wireless walkie-talkie, also known as the ship station. The marine walkie-talkie is a very professional walkie-talkie. Its use environment is harsh, the ship has a wide range of activities, and the sea temperature changes greatly. To meet the needs of global maritime safety navigation, its product design is very professional, and the working frequency is also unified. International maritime communications uniformly stipulate the working frequency range of marine intercoms. TX is from 156.025MHz-157.425MHz, RX is from 156.050MHz-162.025MHz.
The working channels are divided into international channels, American channels and Canadian channels. There are also 10 weather channels (8 of which are American weather channels and 2 are Canadian weather channels). The three working channels are the standard versions of the three channels. Users can choose different versions of the frequency when purchasing marine walkie-talkies according to their requirements.
At present, 57 channels are divided, with channel numbers 1-28 and 60-88, of which 20 are simplex channels, 35 are duplex channels, and 2 are protected channels. 88 and above are private channels (such as the USA channels set up by ports in the United States). Among the 57 channels, some special channels are dedicated to certain functions of communication, including the following:

1. CH16 (156.800MHz): Designated as a VHF wireless telephone international distress and safety communication channel;

2. CH70 (156.525MHz): designated as the VHF DSC international distress and safety calling channel;

3. Protection channel: CH75 and CH76 are the protection channels of CH16, 158.000±0.025MHz;

4. CH06: used for navigation and avoidance operations between domestic ships, and also used for communication between ship stations and aircraft stations engaged in coordinated search and rescue operations;

5. CH13: used for navigation and avoidance operations between ships on international voyages;

6. CH87 and CH88: Two simplex channels are used to provide automatic identification and monitoring of ships operating at sea