What is MF HF and VHF?

Digital selective calling or DSC is a standard for transmitting pre-defined digital messages via the medium-frequency (MF), high-frequency (HF) and very-high-frequency (VHF) maritime radio systems . It is a core part of the Global Maritime Distress Safety System (GMDSS).

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What is the use of MF HF radio?

The MF/HF has Digital Selective Calling (DSC*) as standard with a built in Class A 6CH DSC watch-keeping receiver. You can transmit and receive digital selective calls for quick and efficient establishment of distress, urgency, safety and routine communication with other ships and coast stations .

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Why HF communication is important?

This works particularly well over water, and HF Surface Wave can be used to communicate between ships hundreds of miles apart. HF Surface Wave provides a more robust service than Skywave and is particularly suitable for higher speed operation . This can make it an excellent choice for Naval Task Group communication.

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