That's what the walkie-talkie gives. What does a radio station provide in world of tanks. Using a radio station in World of Tanks

Why radio communications and walkie-talkies are needed is a strange question. Radio communication is an essential necessity for every person.

The walkie-talkie works where it is impossible to use standard means of communication

What is radio communication and what is a walkie-talkie

Radio communication is a simple, reliable and necessary means of communication with an audience located thousands of kilometers away from you. A walkie-talkie (also known as a low- and medium-power radio station) is a portable device that receives and transmits an audio signal, while a radio station can only transmit. Almost all modern walkie-talkies are assembled according to a scheme that uses both a receiver and a transmitter.

The “walkie-talkie” sounds like a battle - films and books about the war, the work of the Ministry of Emergency Situations and the police, rescue and other operations immediately come to mind. Walkie-talkies are convenient and impossible to do without them where no other type of communication is available. Modern radio communication systems are easy to deploy in any conditions and are undemanding to their environment.

Digital technologies in radio communications are not new for a long time. For operational interaction, they are used by many departments around the globe. Emerging technologies offer radio networks of any size. Radio communication today is not only voice conversations, but also, for example, determining the subscriber’s coordinates using the built-in GPS receiver, personal and group calls, etc.

The simplest walkie-talkies (radio stations) do not require registration or are subject to simplified registration (bands 433 and 446 MHz). Radio stations with a wider range already ensure prompt and uninterrupted communication of various serious services, both private and public. Today, radio communication is a necessary tool for the effective operation of a wide variety of structures and organizations.

In everyday life and in war

For example, to build any dispatch system, both old classical radio communication methods and modern digital radio equipment are used. Both types of equipment (both old and new) can operate in analog mode. It should be noted that by gradually replacing outdated and failing equipment with new digital equipment, you get a higher quality of communication.

Whatever technological solutions for building a radio communication system are used, its main task is to ensure a high-quality connection through a radio channel between subscribers. Operational radio communication is necessary where various dispatch services, emergency services, collection departments, mobile security groups, courier services operate, for sports purposes, on land, at sea, in the air - that is, everywhere in peacetime and wartime.

Radio waves propagate in emptiness and in the atmosphere; earth and water are opaque to them. However, due to the effects of diffraction and reflection, communication is possible between points on the earth's surface that do not have a direct line of sight. The communication range is most influenced by the height of the antenna above the ground, the type of antenna, the type of modulation, the power of the radio station, and the level of interference at the receiving point. To increase the communication range, it is necessary to increase the transmitter power. Increasing the transmitter power by four times improves the signal-to-noise ratio on the receiving side by only two times.

Modern mobile radio communications provide the greatest opportunities for uninterrupted radio communications over long distances. At the same time, satellite communications are the most reliable - such systems are increasingly popular. Mobile radio communication systems are in demand in many areas of activity - in business, professional and amateur navigation, security structures, and so on.

The effectiveness of law enforcement agencies largely depends on modern radio communications, since communication directly affects the success of interception operations, etc. The quality, speed and completeness of information transfer often become vitally important. Modern radios for the Ministry of Internal Affairs, the Ministry of Railways, the Ministry of Emergency Situations and other departments undergo a complex acceptance procedure, which guarantees their operation in conditions of sudden temperature changes, high humidity and when exposed to other unfavorable factors.

On land and sea

If we talk about individuals, many go to the countryside for fishing and to ski resorts, where they also use walkie-talkies. Many nature and sports lovers sometimes find themselves in places where there is simply no mobile connection, and only walkie-talkies help out. With the development of technology, people are increasingly exchanging information. Among tourists, especially recently, when low-cost walkie-talkies that do not require complex licensing have appeared, there has been an increase in the number of their users.

A walkie-talkie provides noticeably greater ease of use compared to a mobile phone in a number of cases, and also replaces a telephone in places where there is no network. Both in the mountains and on the rivers you will know: no matter what happens to you or your comrades, they will help you, save you, and rescue you. Even where there is mobile communication, walkie-talkies are in some cases more convenient than a mobile phone. When conducting competitions and training, where participants and coaches need to constantly communicate, all in the same police and military operations mentioned above, walkie-talkies cannot be replaced by other systems for negotiations. Radio communications and walkie-talkies are protection and security, help and a pleasant pastime. Remember at least one day in your life when you did not use radio communications.

2010-02-11

In World of Tanks, any vehicle has five types of modules, and the radio station is one of them, but not everyone knows what it gives, so they often don’t even upgrade it, considering it a useless waste of experience and credits. Such a serious mistake cannot be made, since a walkie-talkie is vital in WoT. It is needed in order to see opponents and allies on the minimap, as well as to transmit data about the enemy’s location.

Using a radio station in World of Tanks

Operating principle

Any equipment has a “Communication Range” parameter, which depends specifically on the radio. It is a circle with a radius specified in the characteristics of the radio. If the communication range circles of two friendly vehicles intersect, then they see each other on the minimap.

For clarity, below is a diagram that allows you to better understand how the radio station works:

The principle of operation of a radio station in World of Tanks

This is the overall picture that an outside observer might see, but for each individual player everything looks a little different. As can be seen from the figure, the communication circles of tanks (1) and (2) intersect, and the communication range of number (3) is not enough, therefore:

• The player numbered (1) sees the allied vehicle (2), and gives it the location of the enemy (4);
• The tank (2) sees the ally (1), as well as the enemy (4), whose coordinates are transmitted to it by the ally (1);
• (3) sees only the enemy (6), and none of the allies sees him;
• (4)visible for machines (1) and (2);
• (5) not visible to anyone, since it is outside anyone’s circle of illumination;
• (6)visible only for tank (3).

Thus, number (3) is in a dangerous position, since his allies do not even know where he is and cannot come to his aid. This situation is widespread in low-level battles, where the vast majority of vehicles have a communication range of no more than 400 meters.

The importance of radio stations for different classes of equipment

In WoT, the walkie-talkie is most needed by fireflies, and should be purchased as quickly as possible, third in order after the engine and chassis. Since the main role of fireflies in battle is to illuminate enemy equipment, they often travel far from their team, so a light vehicle with a short communication radius will simply be useless.

As for other classes, communication range is not so important for them. However, you shouldn’t ignore pumping it up either - if only because without a pumped-up radio, your equipment won’t be able to become elite.

Leveling up

A nice feature of the radio in World of Tanks is that it is a highly unified module, that is, the same model can be found on a large number of vehicles.

A good example is the Soviet 12PT radio transmitter:

As you can see from the image, once you open this module, you can install it on 16 different tanks, and on many of them it will be the top one. For example, once researched on the SU-122A, it will automatically open on other vehicles from the Soviet artillery branch. This property is an additional incentive to spend combat experience on it.

From all of the above, we can conclude that the radio station in World of Tanks is an extremely necessary module, and, despite its role in battle that is not obvious at first glance, ignoring it can lead to disastrous consequences.

what is the communication range for in world of tanks and got the best answer

Answer from Lyolik[guru]
In order for the scout lights to transmit data about illuminated enemies to their own as far as possible. With a weak radio, their efforts will be in vain.

Answer from Yoasha Kravtsov[newbie]

Answer from Aiden Williams[guru]

Answer from Denis Petrov[active]

Answer from Alexander Guetta[newbie]
to highlight the enemy not only on the radar

Answer from Dmitry Deryabin[newbie]
Kravtsov, don’t confuse people, review is the inner circle in which you detect the enemy, and the big
This is the communication range, that’s who got into a large circle of those you can see through the sight.

Answer from Denis Petrov[active]
so that the ally tank, seeing the enemy at the other end of the map, transmits this information to you and the enemy appears in red on your mini map. If the range is small, then those who are closer will see them on the mini map... but you don't

Answer from Aiden Williams[guru]
to see more enemies on the radar... for example, you have 200 and the enemy has 500, he sees you but you don’t, even when he’s shooting at you

Answer from Yoasha Kravtsov[newbie]
I've been playing for two years and never asked myself this question. And then I found out for myself... that it is mainly needed for LT. From now on, on other tanks I will study it only at the previous or last levels in order to speed up the pumping process. It only affects the minimap, that is, with its help you see opponents illuminated by an ally, but it is written there in black and white that with the help of other allies who have dispersed all over the map, you can see the light of the entire map with a stock radio... it does not affect the viewing radius. And you see through the sight only those who fall within your viewing radius.

Some people dream of a new iPhone, others of a car, and others of a set of parts and a new speaker for their radio. Not so long ago there were times when the ultimate dream of golden youth was an ordinary transistor radio.

Radio was a faithful companion of man throughout the 20th century. Famous announcements from the Soviet information bureau, the first music broadcasts, a real breakthrough in the transmission of information, a revolution in the media - all this is radio.

All we hear is radio Ga-Ga. In today's article we will understand what a radio is and how it works.

The famous “Radio Ga-ga” from the Queen song is nothing more than baby talk from the son of the band’s drummer. Roger Taylor heard the child mumbling and distorting the words, and then decided that this might make a good chorus for a song.

Once upon a time, radio was cooler than the Internet - a fact. Another fact: without radio there will be no Internet. Even though receivers are not listened to very often, radio technologies are actively developing and are used in satellite communications, television, mobile phones, walkie-talkies, medical devices... In short, everywhere.

The essence of radio in the broadest sense:

Radio is a method of wireless data transmission in which a radio wave is used as an information carrier.

Let's find out how this thing works and who invented it.

Popov, Marconi, Tesla?

Who first discovered radio communication? It is fundamentally wrong to talk about a specific inventor of radio, since too many people at different times contributed to the development of this technology. Here and Thomas Edison, And Nikola Tesla, And Alexander Popov, And , and many others.

Interestingly, many countries have their own radio inventor. The debate about who was first went on for a long time, and there were many reasons for this.

In Russia it was traditionally believed that radio was invented Alexander Popov. Yes, Popov conducted successful experiments in the field of data transmission starting from 1895 years, however, his invention was greatly improved and brought to mind by foreign colleagues. In addition, Popov did not patent his work.

Of course, Popov’s contribution to the development of radio cannot be underestimated. However, it is incorrect to consider him the only inventor of radio. The opinion that Alexander Popov invented radio was largely imposed by USSR propaganda, when they tried to attribute all possible and impossible inventions to the Soviet Union.

Tesla and Marconi also fought. Nikola Tesla claimed to have conducted experiments on wireless signal transmission before 1896 the year Marconi did it. However, Marconi, who had a commercial streak, managed to patent the invention first.

The merit of this man is that it was he who was able to find truly broad practical application for theoretical ideas.

A real sensation in 1901 was the transmission of a radio signal over a distance of 3,200 kilometers. At that time, many scientists believed that a radio wave could not spread to such a distance due to the spherical shape of the Earth.

What is a radio wave

A wave is an oscillation. A sea wave is a vibration of the surface of the water.

A radio wave is a change in the electromagnetic field propagating in space.

Like light, radio waves are electromagnetic radiation. The only difference is the frequency and wavelength. The speed of radio wave propagation in a vacuum is approximately 300,000 kilometers per second.

Below we present the entire spectrum of electromagnetic oscillations and show the place of radio waves in it.

A radio wave is a signal. Something that conveys information. Radio waves are divided into ranges: from submillimeter to ultra-long. Each wave range has its own propagation characteristics.

For example, the longer the wavelength and the lower the frequency, the more the wave is able to bend around obstacles. Long waves circle the entire planet.

All lighthouses and rescue stations are tuned to a wave length of 6 meters and a frequency of 500 kHz.

Medium waves are more susceptible to absorption and scattering. The length of their distribution is about 1500 km. Short waves travel short distances, their energy is absorbed by the surface of the planet.

How do radio waves work? Principle of radio wave propagation

Before dealing with the radio itself, you need to clarify a few more points. How exactly information is transmitted.

How information is transmitted. Modulation

Let's take an electromagnetic wave. It represents a sinusoid, oscillations of the magnetic and electric field strength vectors. “Where is the information here?” you ask, and there is a reason for this question.

By the way! For our readers there is now a 10% discount on any type of work

The sine wave itself does not carry any information. Signal modulation is used to transmit data. There are different types of modulations:

• amplitude;
• phase;
• frequency;
• amplitude-frequency.

For example, the abbreviation FM means frequency modulation– frequency modulation.

Modulation is a change in one of the signal parameters.

Frequency modulation is a change in frequency. Amplitude – respectively, amplitudes. Of course, the change is not simple, but carries information.

We have a carrier signal (carrier wave) and an information signal (speech, sound, music). Modulation of the carrier signal allows information to be encrypted in it. Moreover, the parameter of this signal changes in accordance with the information signal.

Next we will consider frequency modulation, since FM radio stations are the most popular, and it’s more pleasant to talk about what is familiar. With frequency modulation, the signal does not change in amplitude. In accordance with changes in the level of the information signal, the frequency of the carrier oscillation changes.

This is what it looks like:

How the radio works

The simplest radio receiver contains a receiver and a transmitter. The transmitter must send a signal, and the receiver must receive it.

In this case, the receiver not only transmits, but encodes the signal using modulation. The transmitter must also perform the opposite action, that is, decode the singhala. And then we will receive the same signal that was given to us.

For example, you are riding in a minibus, where the driver is listening to radio “Chanson”. Summer, heat, summer residents, a few more hours to go... In general, beauty, and that’s all. But let's not get distracted! There is a very soulful song on the radio.

When they say “95.2 FM,” they mean an ultrashort radio wave with a carrier frequency of 95.2 Megahertz.

The spectrum of its signal looks something like this. This is an information signal.

To transmit it over a distance, this information must be encrypted. The transmitter in a radio station sends a carrier sine wave into space using frequency modulation.

The receiver in the driver’s cabin, on the contrary, extracts the useful component from the incoming signal. The signal is then sent to the amplifier, and from the amplifier to the speaker. As a result, everyone travels happily to the music!

Knowing the principle of operation of a radio, you can, if desired, assemble a radio receiver yourself from simple components. You will learn how to do this using potatoes in the video. Let’s say right away that we haven’t tested it ourselves, but if you try, tell us how it turned out. And if you have a more complicated problem and need help solving it, contact the student service.