"This thing is great. Although long-distance communication is not good, close-distance has a great impact on strategy. This is much stronger than telephone lines or something." Li Yunlong immediately spoke. Compared with modern soldiers, Li Yunlong and others are actually more sensitive to these communication equipment.

Because they are fighting every day, modern soldiers are used to communication, and sometimes they are not so alert.

"Comrade Han Shuang, were you talking about this before?" Brigade Commander Chen asked tentatively, because he felt that Han Shuang was not talking about this thing, because if it were just this thing, Han Shuang would not be so embarrassed.

At least Brigade Commander Chen thinks that's the case.

"Indeed, I'm not talking about this, of course, the principle is the same as this, but I'm talking about a larger communication device, a land cellular communication cluster." Han Shuang nodded and said it directly.

"Comrade Han Shuang, can you tell me what this land cellular communication cluster is? We don't know much about this." Brigade Commander Chen's face also became serious.

"It's like this. First of all, it's the same as the walkie-talkie in my hand, which can perform instant communication. Secondly, its distance is much farther than the one in our hand. We can easily match the one in our hand, but because there is no communication base station, its communication distance is not far."

"The cellular communication cluster I mentioned before refers to the fact that we build four or five large communication base stations on the top of the mountain in our current area, and carry large communication equipment that is larger than our radio stations. With the communication base station cluster as the core, its communication distance can reach about 400 kilometers." Han Shuang introduced to them.

Such equipment is generally not civilian, and the civilian intercom is very small in size, but such cluster communication is not small at all. Even modern technology needs to maintain communications of about 400 kilometers, and its terminal equipment is quite large in size. Some cars cannot be installed on them, so Hyundai does not have this thing.

Of course, that is because there are better choices, because radio is sometimes no longer so necessary in modern society. Mobile phone signals are almost spread throughout all areas of people. Even if there is no man’s area, there are satellite phones to use if you prepare in advance.

Such communication clusters use more large-scale projects in modern society, as well as various departments of the country. In addition, similar equipment exists in radio stations, and the most used ones are for marine use.

There is enough volume to install such communication terminals on the ship, and in addition, the communication base station is installed near the coast. Because the sea surface is not blocked, the communication distance of four or five hundred kilometers is enough to make many offshore fishing boats and fishermen and others use it.

If it is put into this era, it is actually possible. For example, if it is established near Yan'an, it means that communication can be maintained within most border areas.

"After the establishment is successful, it can support the functions of single call, double call, and group call. Single call is like we call each other separately. Double call means between radio stations and radio stations, between radio stations and walkie-talkies, and group call means that radio stations connected to this network can directly establish a group call, one of which speaks in the group, and all other stations can hear it."

"Of course, with cluster support, the call range of the intercom will also increase." Han Shuang pointed to the intercom in his hand and said.

"This... is great! Are there any restrictions on this thing?!" Brigade Commander Chen and Li Yunlong looked at each other, and both of them were a little excited. What is the concept of 400 kilometers in a radius? This means that an area of ​​more than 500,000 square kilometers can be used.

The most important thing is that this thing is more aspect than their current radio and telegraph, and there is no need to worry about being eavesdropped! At least except for the phone, they never thought that radio could speak directly in voice, which obviously means that its technology is more advanced.

In fact, there were already call radios during this period, but they didn't know or hear about them. Of course, the Japanese did not strictly mean that they did not. Anyway, the thing they later installed on the Zero aircraft was equivalent to not being there.

In fact, if someone carefully takes a look, he will find that many modern technologies have actually existed during World War II. This shows that war is really the driving force that promotes the outbreak of human technology.

Moreover, even if it is not considered these large terminals, the walkie-talkie in Han's hands is too small. Sometimes even scouts can carry it for reconnaissance and report the enemy situation back as soon as possible without having to run back directly.

In this way, it will be more convenient to convey orders! Especially on the battlefield, sometimes the opportunity for war often passes by in a flash. It is too important for them, because they cannot fight the Japanese invaders' frontal battlefield, so the opportunity to seize the fighter plane is very important.

What's more, the Japanese are now sweeping wildly. If it can be built, it means that the Japanese are sweeping, and they can do more effectively avoid and counterattack, which can greatly reduce casualties in the entire border area.

You know, many excellent soldiers were sacrificed during the sudden sweep of the Japanese!

"There are restrictions, can you keep it? Because after it is built, there is no way to move it. In order to maximize its signal quality, it is best to build it on the highest peak in the mountains, so that the signal is better."

"So, electricity is also a problem. We can provide some electricity supply solutions, but these solutions require you to keep these places."

"Because your scientific research strength is too weak, but once these things are obtained by the Japanese, you know what the consequences are, so I don't need to say this." Han Shuang said seriously.

"I understand." Brigade Commander Chen nodded immediately. They could say that they had no technological power in their hands. There were very few college students in their hands. At present, the Anti-Japanese University learns more about combat. There are too few science and technology, mainly because there are not even teachers, but there are many students, but what's the use?

But the Japanese are different. If these things fall into the Japanese's hands, they know very well what this means.

"I need to discuss with our headquarters. Do you have a radio station?" Brigade Commander Chen took a deep breath and asked decisively.

"There are radio stations...but..." Han Shuang did not say the following words.

But Brigade Commander Chen already knew what Han Shuang was going to say, so he said decisively: "Comrade Han Shuang, you are willing to share these things with us. This is already heart-to-heart. We have no secrets to our friends."
Chapter completed!