TECH

Advantages of Portable Radio Communication Gadgets

The main advantage of a portable radio is that there is no need for you to pay for communication. It is also indispensable in various field conditions, that is, where there is a big problem with a stable signal, which is why the ability to communicate using a mobile phone is limited. We also note one more technical feature of the device, such as the ability to operate an amateur radio in conference mode, which allows a dialogue with several interlocutors at the same time. Such a portable “device” is capable of providing stable communication at a distance of up to 10 kilometers. If you want to buy radio calling devices online, visit Radiocomunicacion.

Advantages and scope of the amateur radio

Also, the advantage of an amateur radio is light weight and small size. A compact device with such a sophisticated functionality weighs about a hundred grams, depending on the model. All {walkie-talkies} are produced in shockproof and waterproof cases. They have a number of useful functions, such as voice control of the walkie-talkie, channel control, the ability to scan them, automatic shutdown, etc.

Thanks to all this, portable radio and handheld police scanner is widely used in urban environments, and in various fields of human activity. Without them, it is difficult to imagine the work of employees of security structures, law enforcement agencies. They are also of great importance for search services in the elimination of emergency situations, when mobile communication is hampered under the rubble of reinforced concrete structures, while every minute is precious for saving human life.

Their merits are rightfully appreciated by people who are actively involved in various technical sports, from bicycle bikers to climbers and cavers. The walkie-talkie was also liked by motorists, especially the unlicensed 27 MHz radios operating in the CB range.

Features of radio communication on inland waterways

Radio communication on inland waterways differs significantly from radio communication at sea in terms of propagation of radio waves and methods of communication.

As you know, at sea, the communication range is determined by the direct radio visibility range, limited by the natural curvature of the earth’s surface, which makes it possible, when antennas are located at an altitude of 10-15 m, to provide reliable communication at distances of up to 25 nautical miles, and in case of favorable conditions for the propagation of radio waves or more. So, at the Championships of Russia on Lake Onega, the author recorded a communication range of 30 – 35 miles between the referee’s vessel and yachts equipped with sea stationary radio stations and antennas located on the top of the mast.

Unfortunately, on inland waterways, such favorable conditions are found only in large bodies of water. In most cases, the ship is located between the shores, sometimes high enough, preventing the propagation of radio waves and thereby hampering, if not completely excluding the very possibility of radio communication.

When small vessels are in lock chambers when using portable radios, communication with the dispatcher may be unstable even at short distances due to signal loss caused by strong reflections of radio waves from the walls of the chamber and ships standing in it (this process is called “radio wave interference” – adding straight and reflected waves, accompanied by amplification or attenuation of signals).

There are differences in the intensity and nature of the use of sea and river radio stations. If in the sea ships diverge and maneuver, as a rule, at sufficiently large distances, then the movement of ships on rivers and canals occurs in close proximity to each other, in connection with which skippers must constantly coordinate their actions using radio communication. Therefore, the radio station for the navigator of a river vessel is the most important means of navigation.

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