5 answers about marine VHF radio
- How far is the communication distance of marine VHF radio?
There is no "distance" index in radio communication, because the ultra short wave communication is line of sight transmission, and the signal is blocked and interfered by buildings, hills, forests, electromagnetic fields, etc., which affects the actual communication distance and quality. In the ideal state (without any obstruction and interference), the communication distance of professional marine VHF radio is more than 15 km or even further, while the actual communication distance is generally only 8-10 km. There are many communication antennas on the ship, and the installation is often not very reasonable, resulting in serious electromagnetic interference between the antennas, and the communication distance is often not as far as the theoretical distance.
- Can mass consumers buy marine VHF radio?
Public consumers can also buy marine VHF radio, especially some ship owners, but also have to buy marine VHF radio. According to the FCC and IMO, as one of the necessary equipment in ship communication system, the corresponding number of marine interphones must be equipped. And some seaside entertainment practitioners are also equipped with maritime aircraft for a long time, so as to improve the ability to deal with risks.
- Do you have to pay for using marine VHF radio?
No matter how often you use it, the fee you pay is only the money for a marine VHF radio and certificate examination, and the rest is free of charge.
- Why does marine VHF radio have frequency limit?
Marine VHF radio is widely used in order to distinguish it from other analog walkie talkies and amateur walkie talkies, so there are some differences in the use frequency. It's not that other simulators can't use this frequency, but the frequency of marine VHF radios has formed a global unified standard through years of development. Regular professional marine VHF radios have a unified frequency. Even different brands of marine VHF radios can talk in the same channel, which greatly improves the homogeneity of marine VHF radios and improves communication efficiency.
