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Now Li Yunlong and Zhao Gang didn’t even think about whether it was a misunderstanding. They wanted to know more about how Tang Li did it.

Looking at the two people staring at him in silence, Tang Li sighed and said.

"Didn't I just say that besides my senior sister, there is also a team of radio experts coming to China to help me this time?"

"And this time the radio explosion was an accident caused by their operating error when debugging the high-power communication equipment."

Nonsense, nonsense again!

Tang Li plans to conceal the matter of the satellite this time. Although he is confident that the country will not make things difficult for him, there will always be conspiracy theorists no matter what era.

This idea came to his mind when he saw Zhao Gang questioning the rifle production line.

China has no shortage of smart people, and even less shortage of smart people who think nonsense all day long!

Some things may be fine if you keep them hidden, but once they are out in the open, you will need to face all the doubts.

Although he believed in the system's ability, he was sure that all doubts would be eliminated by its ability to modify memory.

But he doesn't want to be so violent towards the Chinese people, and everything needs to be done slowly.

Then Tang Li took out the satellite phone, put it on the table and said.

"This is called a wireless phone, and it is the new product being tested in this radio explosion."

Tang Li looked up at Li Yunlong and Zhao Gang in front of him.

Li Yunlong has regained his composure and is looking at the satellite phone with curiosity.

But Zhao Gang still looked at Tang Li in disbelief.

Tang Li smiled bitterly, thinking that it was easier to communicate with someone like Li Yunlong.

Smart people are so annoying!

They question everything they see and hear until they understand why it works.

But China now can’t wait for them to study it slowly.

What China needs now is a technological explosion and direct technological iteration.

Therefore, Tang Li chose not to pay attention to Zhao Gang's reaction.

Anyway, Li Yunlong is still the brigade commander now, so Zhengwei should just be Zhengwei.

Looking at the curious Li Yunlong, Tang Li smiled.

"This thing is very easy to use, just like our phones, except that it doesn't require a phone line, and the built-in battery can last for half a month."

Li Yunlong asked curiously.

"What if the electricity in here runs out?"

Tang Li had thought of this problem a long time ago, so he took out the charger that came with the satellite phone.

The size of the charger is similar to the chargers used to charge electric vehicles in the 21st century.

There are more voltage stabilizing devices and current converting devices inside.

It's all about stability.

Tang Li said while holding the charger.

"This is a charger that comes with a wireless phone. When you need to charge, just plug one end into the phone and connect the other end to the wire."

"And it can be charged in a variety of ways, such as the hand-cranked generator commonly used in telegraphs, the gasoline generator removed from the Japanese cars, and even the coal-fired steam generator can provide charging capabilities for it."

Although Jennifer said that there was a solar power generation preparation process in the R&D laboratory, Tang Li was not planning to take it out. That thing was too shocking for this era.

Old Li chuckled.

"Hey, you're really a talented person!"

Tang Li immediately showed Li Yunlong how to use this thing.

Since this is the first batch of satellite phones, the signal is directly connected to the Yangquan Command Center. When more satellite phones are added, the number dialing system will be enabled.

But now, for the convenience of demonstration, Tang Li still dialed the code identification number of the command center on the dial and spoke to Li Yunlong.

"Commander, you see, the number I'm pressing now is the command center's number, 000001."

The number was dialed and a beeping sound came from the speaker.

The design of this phone is very complete. It not only has a handset, but also an external speaker.

Two seconds later, the call was connected.

"Please check the contact code: Heavenly King Covering Earthly Tiger."

A clear male voice came out from the speaker.

Tang Li said casually.

"Chicken stewed with mushrooms."

The person on the other end of the phone immediately became excited.

"Hello, Battalion Commander! This is the Arsenal Command Center, please give me your instructions!"

Tang Li said as he looked at Li Yunlong who was eager to try.

"The material transport company has successfully arrived at the designated location. Our regiment headquarters has been upgraded to a brigade headquarters. I am now demonstrating our research results to Brigade Commander Li. Now Brigade Commander Li will give a speech."

After saying that, he handed the right to speak to Li Yunlong and spoke to Li Yunlong.

"Commander Li, please say a few words and test our results."

Li Yunlong cleared his throat and said.

"Ahem! Can you hear me?"

Tang Li didn't know whether to laugh or cry, but this sentence made sense.

The person on the other end of the phone was obviously stunned for a moment, not expecting the first sentence to be like this, and then quickly replied.

"Report to the brigade commander. I can hear you clearly."

At this time, Zhao Gang's voice came from behind.

"Please answer, what time is it now?"

The call quality of this satellite phone was still very clear, and the person on the other end was obviously hesitant when he heard that it was another person's voice.

Tang Liming understood Zhao Gang's meaning and started speaking.

"Just answer normally. This is Zhao Gang, Zhao Zhengwei from the brigade."

Hearing the voice of his superior, the signalman replied.

"Yes! Report to Zhao Zhengwei, the current time is 3:20 pm."

Tang Li turned around and looked at Zhao Gang calmly and asked.

"Zhao Zhengwei, do you have any questions?"

Zhao Gang asked with a look of surprise.

"What is the range of this radiotelephone?"

Tang Li knew that Zhao Gang asked the world just now in order to prevent himself from using certain equipment to record the conversation and then deceive others.

Tang Li was relieved to see that Zhao Gang finally stopped asking weird questions and spoke up.

"According to experts' calculations, covering the entire country of China is not a problem."

Zhao Gang thought more than Li Yunlong. He instantly thought of the value of this satellite phone and said happily.

"Great! If we have such equipment, our communication will be much more convenient."

Zhao Gang asked again after he finished speaking.

"I just don't know the confidentiality of this wireless phone..."

Tang Li smiled confidently and spoke.

"Zhao Zhengwei, you should have some understanding of the principles of radio."

Seeing Zhao Gang nodded, Tang Li continued.

"The mainstream wireless transmission now relies on telegraphs. The main reason is that it is cheap, safe and stable!"

"But my wireless phone uses a more efficient transmission frequency and channel, and is more secure and completely eliminates the risk of being monitored."

"Even Russia and the United States, which have the most advanced technology, would have to think twice before they could monitor my wireless phone."

"And this wireless phone uses the main server transfer mode, so there is a better way to use it, that is, telephone conference!"