uhf channel

UHF maritime walkie talkie is a handheld or fixed radio device that uses the ultra-high frequency (UHF) band for maritime communication, generally used for communication within ships or at close range

The advantage of UHF maritime walkie talkie is its strong signal penetration ability, which is not easily affected by obstacles such as buildings and mountains. It is suitable for use in complex marine environments

The disadvantage of UHF maritime walkie talkies is their short communication distance, high likelihood of electromagnetic interference, and the need for more frequency resources and higher transmission power

The frequency range of UHF maritime walkie talkies is generally 400~470MHz, and there may be different allocations and regulations depending on different countries and regions. For example, in China, the frequency allocation of UHF maritime walkie talkies is:

400.000~406.000MHz: used for internal communication within ships and not allowed to communicate with shore stations or other ships.

406.000~406.100MHz: Used for emergency positioning radio beacons (EPIRB) to transmit distress signals and location information.

406.100~410.000MHz: used for internal communication within ships and not allowed to communicate with shore stations or other ships.

410.000~420.000MHz: used for ship to shore, shore to ship, and ship to ship communication, which requires approval from the radio management department.

420.000~450.000MHz: Used for amateur radio communication and requires approval from the radio management department.

450.000-470.000MHz: Used for public mobile communication and requires approval from the radio management department.

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