Iron-blooded Hero Li Yunlong

"However, we are now improving this mobile phone according to the idea you provided, and now this first-generation mobile phone can basically make calls!"

Generally speaking, communication between mobile phones does not require satellite transmission, and ordinary mobile phone communication is radio communication.Satellite transmission is only required for satellite (good) phones.

Radio communication is a communication method that modulates electrical signals such as voice, text, data, and images that need to be transmitted on radio waves and transmits them to the other party through space and ground, and uses wireless electromagnetic waves to transmit information in space.A satellite phone is an intercom that transmits information based on a satellite communication system, that is, a satellite relay intercom.

So now even if there is no satellite, it is still possible to make general calls, provided that there is a signal.

Zhao Gang, Xu Yihang, Xu Erhang, etc. all stared at the black turning head in front of them with wide eyes. It was hard to believe that the black turning head could still talk!

PS: For the first update, I recommend the good books "Snow Leopard War Wolf World", "Legend of the Strongest Army God", "The Strongest Army God of the Anti-Japanese War" and "The Real Man's God-level King". .

Chapter 1014 Century call, Li Yunlong is too awesome (second update, please subscribe)

mobile phone!

This was a very vague concept for everyone present, and they couldn't believe that the black brick in front of them could still talk!

During World War II, telephones, items that can be used for long-distance calls, were a luxury, and telephone lines were still required to make calls. It is hard to imagine that the two black bricks in front of you can make calls over long distances!

"Commander, can this thing talk?" Xu Yihang's eyes were full of disbelief: "He can talk without a phone line?"

"Yes, it's amazing!" Xu Erhang also looked very curious: "It's really unimaginable!"

Fang Yu said with a loud smile: "Hahaha, your expressions are exactly the same as when I first saw this project research, but according to the theory and research process provided by the commander, we really created this kind of remote communication , cell phone that doesn’t need a phone line!”

"Hahaha, the technology in the future will be more advanced!" Li Yunlong said confidently: "In the future, mobile phones can also access the Internet, can be controlled by touch, and have various electronic games... can be controlled by AR and visually... 670 "

Li Yunlong kept talking about the development of mobile phones in the future. Xu Yihang, Fang Yu, Xu Erhang and others listened with great fascination. Although many of them couldn't understand, but now the feeling is unclear.

Seeing everyone's amazed, expectant, puzzled and shocked expressions, Li Yunlong smiled lightly and said, "Okay, let's talk about this later, I guess I don't understand what I can tell you now, so let's take a look at how this phone is!"

The function of the first-generation mobile phone researched and manufactured by the Shanghai Research Institute is very simple. It can only make calls, and it can only be connected after entering a specific number.

Now a total of two phones have been manufactured, the number of the first phone is simply: 000000, and the number of the second phone is 111111!

Li Yunlong took the big brother's mobile phone numbered 000000, and then began to dial 111111, followed by a beeping sound.

In addition, the mobile phone numbered 111111 is in the hands of Zhao Gang.

When Zhao Gang pressed the answer button, he immediately started talking to Li Yunlong: "Hi, hello, I am Zhao Gang, political commissar of the Iron-Blooded Lion Army of the Eighth Route Army!"

As Zhao Gang's voice fell, it was transmitted to Li Yunlong's mobile phone a moment later!

The quality of the call is still good, very clear, although there is a bit of noise, but the other party's voice can still be heard very clearly.

"It's his grandma, Lao Zhao, you're talking officialdom with me, hahaha!" Li Yunlong became excited when he heard that the mobile phone can really talk: "Our iron-blooded lion army finally has a mobile phone !"

"Yeah, Lao Li, we can talk on the spot in the future!" Zhao Gang held the big brother in his hand, and his excitement was self-evident.

"In the future, we won't need to use telegrams to make calls, and it will be safe in real time!" Li Yunlong said: "This is of great significance to the development of our army!"

The telegrams sent by the radio station may be intercepted and revealed, and it is also very easy to be destroyed and interfered with, because the radio station has been around for a long time, and there are many various anti-radio and radio reconnaissance machines, so there is no security.

However, this mobile phone has just been produced and invented. Not only can it make real-time calls, but it can also be very safe and confidential to avoid leakage of information and calls.

The call between Li Yunlong and Zhao Gang can be said to be the call of the century, because (bbfg) represents the emergence and germination of high-tech products such as mobile phones.

After the conversation between the two, Xu Yihang, Xu Erhang and the others were very curious about the two big brothers' mobile phones, and they all tried to use them to make calls!

Fang Yu was very satisfied with the effect of such a call, but after hesitating for a while, he looked at Li Yunlong and said, "Commander, there is still a problem, that is, there is a distance limit for calls on this mobile phone, because the telegram will be delayed due to the increase in distance. If the wavelength is reduced, the wavelength will become weaker, and finally the mobile phone will not be able to talk!"

The call between mobile phones is very simple. The mobile phone is equivalent to a small wireless signal transmitter. When making a call or sending a message, the human voice and the sound waves emitted cause the parts in the microphone to resonate, and the resonance is converted into Other forms, but retaining the amplitude and frequency of the sound, are emitted by the part of the earpiece. The nearest signal tower receives it and passes it on, and then the other end of the phone receives this frequency again here, and finally converts it into sound.

Since radio waves weaken after traveling through the air for a period of time, repeater stations are needed to strengthen the signal during long-distance transmission.

Upon hearing this, Li Yunlong immediately said, "This is an easy solution, we just need to build a relay station."

"The signal tower of the relay station can enhance the signal strength of this radio wave, which can make the whole signal spread farther!" Li Yunlong directly stated his solution: "As for the method of the relay signal station, I will return to the headquarters and give you the details." Theories and methods!"

"Relay signal tower?" Fang Yu muttered to himself, "This is a good idea, Commander, you are simply a genius! It's amazing!"

Fang Yu did not expect that Li Yunlong, a brave and skilled soldier, could have such profound scientific attainments and skills. This is simply incredible!

"It's amazing, this black brick can really talk!"

"It's amazing, it's much more convenient than a hand-cranked phone, it's really amazing!"

Xu Yihang and Xu Erhang felt that it was incredible that such a big brother could talk on a mobile phone, and they were very excited!

Under the influence of Li Yunlong, the mobile phone was researched by the Shanghai Research Institute. This is an invention that shocked the world!

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PS: For the second update, I recommend the good books "Snow Leopard War Wolf World", "Legend of the Strongest Army God", "The Strongest Army God of the Anti-Japanese War" and "The Real Man's God-level King". .

Chapter 1015 Shanghai, the city that never sleeps, deserves the greatest credit (third update, please subscribe)

When the whole world is still using radio stations, wired telephones and even letters, the Jagged Lion Army is already preparing to use wireless communication mobile phones. This is definitely the world's number one high-tech!

However, this mobile phone has just been invented and manufactured, so it must be first used in ~ the military field!

"Old Fang, the research results of mobile phones must be kept secret and the pace of research should be accelerated!" Li Yunlong said to Fang Yu meaningfully.

Now with the continuous expansion of the combat scope of the Jagged Lion Army, contact needs to be more timely and convenient, which can facilitate troop mobilization and strategic adjustment, so the invention of mobile phones is very important!

If the mobile phone is applied to the military field, it will definitely have an important impact. You can know the battle situation of each army in a timely manner, which is very important for strategy and layout.

Fang Yu nodded slightly and said: "Commander, don't worry, with the results you provided, we will seize the time to conduct research!"