Category Archives :technology suggestion

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.,  ...

Retevis RM40 is a professional compact marine water-proof VHF radio, which is suitable for marine operations, such as fishing at sea, oil production at sea, ship extradition at port, channel distress alarm, etc.  ...

As a communication tool, two way radio has a long history. Maritime radio is the first representative of radio to enter the field of navigation. Radio was widely used in shipping industry, from the earliest radio telegraph to the radio station later, and now the more advanced maritime satellite communication system. Marine VHF radio is a kind of system intercom  ...

The principle of intercom communication is to use electromagnetic wave to transmit information in the air. According to Maxwell's electromagnetic field theory, the changing electric field produces the changing magnetic field, and the changing magnetic field produces the changing electric field.  ...

In recent years, with the vigorous development of water industry, water traffic is more and more developed, communication safety is more and more important, and the use of maritime walkie talkie is more common. Summarize some of the most common faults and solutions in daily use for users' reference.  ...

The communication distance of maritime radio is generally far, because the environment is relatively open, reducing the loss of radio waves. But relying on the environment alone can not make the maritime VHF radio have a good communication signal. Here are some methods to improve the signal intensity of marine radio.  ...

VHF radio lets boaters have two-way contact with other vessels, rescue services, and anyone else using VHF radios. While they used to be a one-size-fits-all product, these days they have a range of extra features that may better suit your requirements. Here are the features you can choose from at your next marine radio installation.  ...

The ability to call for help or signal for assistance is imperative. With a VHF or DSC radio you can transmit a Mayday call to the Coastguard and other vessels and a distress or emergency beacon will transmit your location to the search and rescue services  ...

According to the FCC regulations, most ships must be equipped with VHF marine radio. Some ships have it, while some cheap ships do not. If your ship happens to have no marine radio, you need to install one to ensure safety. So where is the right place to install the marine VHF radio?  ...

There are many ways to communicate with others at sea. What makes the VHF DSC radio the best form of short range communication and why is it recommended?  ...