"This thing is too good, although long-distance communication is not good, but the close range has too much impact on strategy. It's a lot better than a phone line or something. Li Yunlong immediately said that compared with modern soldiers, Li Yunlong is actually more sensitive to these communication equipment.

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

"Comrade Han Shuang, did you say this before?" Brigade Commander Chen asked tentatively, because he felt that what Han Shuang said didn't seem to be this thing, because if it was just this thing, Han Shuang shouldn't be so embarrassed.

At least Brigade Commander Chen thinks so.

"It's true, I'm not talking about this, of course, it's the same principle as this, but I'm talking about a much larger communication device, a terrestrial cellular communication cluster." Han Shuang nodded and said it directly.

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

"That's right, first of all, it's the same as the walkie-talkie in my hand, which can be used for instant communication, and secondly, it's much farther away than the one in our hand, and we can match it in pairs at will, but because there is no communication base station, its communication distance is not far."

"And the cellular communication cluster I mentioned before refers to the fact that we have four or five large communication base stations on land, for example, on the top of the mountain in the area where we are now, then if we carry large, that is, a little larger than our radio station, the communication distance can reach about 400 kilometers." Han Shuang introduced them to it.

Generally speaking, such equipment is not civilian, the volume of civilian walkie-talkies is very small, but such trunking communication is not small at all even if it is the volume of terminal equipment, even if it is modern technology, to maintain a distance of about 400 kilometers of communication, its terminal equipment volume is also quite large, some cars can not be installed on it, so modern cars do not have this thing.

Of course, that's also because there are better options, because in modern society, radio is sometimes not so necessary, and mobile phone signals are almost everywhere in all peoplened areas, even if no man's land is prepared in advance, there are satellite phones that can be used.

Such communication clusters are used in modern society more often for some large-scale projects, as well as between various departments of the country, and there are similar equipment for radio stations, and the largest number of them are used by ships.

There is enough volume on the ship to install such a communication terminal, and in addition, a communication base station is installed near the coast, because the sea surface is not blocked, so the communication distance of four or five hundred kilometers is enough for many offshore fishing boats and fishermen.

If it is put in this era, it is actually possible, for example, if it is built near Yan'an, it means that communication can be maintained in most of the border areas.

"After the establishment is successful, it can support single call, double call, group call function, single call is like we call each other separately, double call is between radio stations and radio stations, between radio stations and walkie-talkies, and group call is connected to the radio station that enters the network can directly establish a group call, one of them speaks in the group, and all the other stations can be heard."

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

"This ...... That's great! Are there any limitations to this thing?! Brigade Commander Chen and Li Yunlong glanced at each other, both of them were a little excited, what is the concept of a radius of 400 kilometers? This means that more than half a million square kilometers of land can be used.

The most important thing is that this thing is more multifaceted than their current wireless telegraphy, and they don't have to worry about being eavesdropped! At least they never imagined that the radio could speak directly with voice, at least not by telephone, which obviously meant that it was more technologically advanced.

In fact, there were already intercom radios at this time, but they didn't know or hear of them, and of course the little devils didn't strictly speaking. Anyway, the thing they installed on the Zero plane later is equivalent to nothing.

In fact, if someone takes a closer look, they will find that many modern technologies were actually available during World War II, which can show that war is really the driving force behind the outbreak of human science and technology.

And even if you don't count these large terminals, the walkie-talkie in Han's hands is too small, so 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 easier to convey orders! Especially on the battlefield, sometimes the opportunity for war is often fleeting. It was too important for their Eighth Route Army, because they had no way to fight the little devils on a frontal battlefield, so the opportunity to seize the fighter was very important.

What's more, now the little devils are sweeping wildly, if it can really be built, it means that the little devils can sweep up, and they can dodge and counterattack more effectively, which can greatly reduce the casualties in the entire border area.

You know, many excellent warriors were sacrificed in the sudden sweep of the devil!

"There are restrictions, can you keep them? Because after it is built, there is no way to move, and in order to maximize its signal quality, it is better to build on top of the highest peak in the mountain range, so that the signal is better. ”

"So, electricity is also an issue, and we can provide some power supply solutions, but these solutions require you to hold these places."

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

"Understood." Brigade Commander Chen nodded immediately, it can be said that there is no scientific and technological power in their hands, and there are few college students in their hands, and the current study of Kang Da is more about operations, and there are too few about science and technology, mainly because there are no teachers, and there are many students, but what is the use?

And the little devils are different, if these things fall into the hands of the little devils, they know very well what it means.

"I need to talk to our headquarters, do you have a radio?" Brigade Commander Chen took a deep breath and asked decisively.

"The radio has a ...... However, ......" Han Shuang did not say the rest of the 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 digging out your hearts and lungs, and we have no secrets about our friends. ”

"Okay, then I'll have someone take you." Han Shuang nodded, modern radio stations naturally have the function of sending Morse code, but they don't use it much.