After temporarily leaving the command headquarters, Han Shuang went directly to the command vehicle on the side of the armored car behind, and after getting into the command car, Han Shuang directly connected with the headquarters.

"Do you have anything to consider?" Jiang Hai's voice came in almost immediately after Han Shuang connected the communication.

"Brigade Commander, what do you think of building a land trunked radio here? If we need to be here for four months, communication is a big problem. Han Shuang said directly.

"Terrestrial trunking radio?" Jiang Hai was stunned for a moment, he didn't understand this thing. But it doesn't matter if he doesn't understand, the tanuki next to Jiang Hai has directly mobilized the information of this thing, and then displayed it on the screen in front of Jiang Hai.

"If you build this, the simplest problem, how do you think the power problem can be solved?" Jiang Hai thought for a while and asked.

The so-called terrestrial trunking radio is actually a bit like a modern walkie-talkie system, but in fact it is more powerful, if a large trunking base station is built, and related equipment is also built in another place, it can be directly carried out radio intercom within a radius of 300-400 kilometers.

Of course, civilian radio walkie-talkies are not good, and they need that kind of large equipment terminals.

Of course, the advantages are needless to say, I don't know how many times stronger than the radio stations of this era, and there is no need to worry about someone in this era who can eavesdrop, and there is no need to send telegrams, you can directly make voice calls, and even establish a large cellular communication group.

This means that they will become extremely convenient in terms of intelligence, and the war is fought by intelligence!

Of course, there are also disadvantages, very simple, the establishment of such a cluster base station requires a large scale of engineering, not to mention, and it has no way to move, of course, it is not completely impossible, but the dismantling also requires professional personnel.

In fact, similar personnel in this era can also be found, as for debugging equipment, Han Shuang doesn't know if they can learn it.

It's hard to say, it's easy to say...... It's also simple and ruthless, especially don't underestimate the top scientists of this era. A lot of modern scientific knowledge is still tossed by scientists of this era.

"The electricity is also simple, photovoltaic power generation and so on can be solved, and it can also be directly burned by some oil generators." Han Shuang smiled and said, in fact, there are many power plants in this era, but most of them are located in coastal areas, such as this inland area, there are almost none.

"Well, it's not impossible, building a thermal power plant is actually very simple, but there is another very important question, do you think they can hold it?" Jiang Hai asked seriously.

Han Shuang thought about it, indeed, this is a problem, this thing...... Naturally, they didn't have any problems in the past few months, but when they weren't there, whether the Eighth Route Army could hold it was another question.

And this place is a bit delicate, in fact, if they don't show up, the Eighth Route Army will definitely give up here, but when the Hundred Regiments War starts at the end of August this year, the Eighth Route Army's base here will basically be stable.

But this place must still be on the front line of war, and it is still unknown whether they will be able to hold this place

However, before Han Shuang could answer, Jiang Hai smiled and spoke again: "I think, you might as well ask them directly?" If they think they can, they will build one thing at a time. ”

"Good!" Han Shuang thought about it, it was also the same reason, as for whether this thing was pulling out seedlings and helping it, whether it would affect the world, this kind of question Han Shuang and Jiang Hai had never considered, because this was nonsense at all.

They weren't for any space river crab or something, when the rift existed, it had already been affected, so it didn't matter if it affected or not.

And these things will inevitably have a little beneficial effect on them, and there are some things that may be a little too much, but there are some things that don't matter.

As for the future, Han Shuang and they can't think about it so much.

After terminating the communication with the headquarters, Han Shuang thought about it, and after getting out of the command car, he said directly to the soldiers outside: "Is there a walkie-talkie?" Give me two. ”

"Yes." These soldiers immediately took out two spare walkie-talkies from the command vehicle and handed them to Han Shuang.

These things are also special equipment for dark blades, which are sometimes used for covering, although they are not used most of the time, but they are available as a backup just in case.

Carrying two walkie-talkies, Han Shuang walked directly to the command tent, she didn't leave for long, and when Han Shuang came in, Brigade Commander Chen and Li Yunlong were looking at the map and discussing something in a low voice, and when they saw Han Shuang coming in, the two of them stopped.

"Brigade Commander Chen is like this, I was thinking about a problem before, if we want to stick here, communication must be a problem." Han Shuang didn't hide it either, and went straight to the point.

"That's true." Brigade Commander Chen nodded.

And Li Yunlong next to him said directly: "Comrade Han Shuang, you were hesitating just now, is it because you have a better choice than the radio?" I saw you call the artillery positions on your side directly? ”

"Yes, I do have a better choice here, just like Captain Li, you can see that you can talk directly, such as this." Han Shuang directly handed over the walkie-talkie in his hand.

Li Yunlong stretched out his hand to take the walkie-talkie, and when he saw this, he didn't quite understand what this was.

On the way here, Han Shuang had already turned on both walkie-talkies.

"This is a walkie-talkie, it is similar to the principle of a radio, and it also uses electromagnetic signals to communicate. The only difference is ......" Speaking of this, Han Shuang directly pressed the call button on the walkie-talkie and continued: "It can make instant calls." ”

Han Shuang's voice in the second half of the sentence came directly from the walkie-talkie in Li Yunlong's hand.

When Han Shuang's voice came out, Li Yunlong and Brigade Commander Chen's eyes were round, although Li Yunlong had seen Han Shuang talking to their artillery position before, but after all, he hadn't experienced it personally, and now he saw it with his own eyes!

Li Yunlong also saw Han Shuang's movements, and he immediately pressed the button on the walkie-talkie and tentatively said, "How far is the call distance of this thing?" ”

When he spoke, Li Yunlong's voice also came out from the walkie-talkie in Han's hands.

"The distance varies, but if it's a plain area, it's about 5-7 kilometers." Han Shuang probably gave a data, because there are very few electromagnetic signals in this world, there is little interference, and the distance that can be communicated is naturally far, "If you are in a mountainous area, see if there are mountain peaks to block it." ”