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Free Web Novel,Novel online - All in hlnovel.com -> Sci-fi -> We live in Nanjing Text Chapter Thirty-Three: Liberation of Global Senior High School Students
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- Wednesday.
Relying on his bottomless contacts and even deeper shame, Wang Ning got a second-hand gr3188 relay station from the ham group in Nanjing, and asked Xiao Zhu to drive it to the headquarters on the same day, and used it in the relay The base station I found is the same as the one found by Banxia, ??and the model is Motorola gm300.
When Bai Yang came home from school that night, the living room had turned into a large-scale second-hand electronic waste collection site. Lao Wang and Dad squatted among the scattered electronic components and screwdrivers, wrenches and screwdrivers, surrounding the icom725 radio station and the gr3188 analog relay. It's like two home repairers.
"Give me the drawing, I'll find out where this corout interface is"
"Where's the multimeter? Have you brought the multimeter? I'll ask Xiaozhu to bring it over."
"It's broken, you can't use a soldering iron for wiring? Can you find a soldering iron over there? And rosin?"
"Worry about a fart, you can't find a soldering iron in Nanjing?"
"Where was this broken relay used before? Why can't it be wiped clean? It's black when you touch it, and it's dirty."
"Drag!"
Bai Yang went into the room and threw his schoolbag on the bed. His mother sat on the bed in her bedroom, swiping her phone, raised her head and shouted: "Yang! The food is in the pot in the kitchen!"
"Know it."
Bai Yang went into the kitchen and opened the lid of the pot, and there were warm noodles in the pot.
Holding his rice bowl in his hand, he slowly returned to the living room, squatting next to Wang Ning and Bai Zhen. The two middle-aged men were very busy. They dismantled the case of the repeater, removed the cooling fan, and exposed all the ports and Tangled complex cables.
"It's so complicated." Bai Yang babbled and ate, "Can she handle it?"
"Actually, it's not complicated at all." Wang Ning buried his head in turning the screws, "As long as you can understand the internal technical logic, the operation is very simple Fuck it, it's broken!"
"You know that the communication network is divided into seven layers, right?" Bai Zhen said, "The bottom layer is the hardware, and the upper layer is the protocol. In fact, the most important thing is the superstructure. You only need to figure out the logic of the coding, and the hardware can deal with it. For example, if you have the ability to transmit images, then no matter whether you use a 4k LCD screen or an old black and white TV, the only difference is the quality of the picture Fuck, it's broken again!"
"This thing is very simple in principle. What I told you before is that the relay controls the transmission and reception of two or five. If you use a mobile phone to remotely contact the relay, you can achieve the effect of a mobile phone." Wang Ning forcefully Pull out a small piece of green printed circuit board from the relay station, the size of a thumbnail, connected to a thin white wire, pick it up and show it to Bai Yang, "Here, look, it's this thing, when the time comes you will Use it to connect relays and switches together, as long as you find the correct interface and pins, it can do a lot of work."
"Almost all the cables in this room are copper cores, but the types of signals they transmit are different." Bai Zhen pointed around, "The same hardware foundation, but different network protocols."
"So" Bai Yang hesitated, "We still have to teach her the osi seven-layer model?"
"Of course it is best to combine theory with practice. It is also good to teach her to understand the tcp/ip protocol." Wang Ning nodded.
"But even I don't understand it." Bai Yang still had noodles in his mouth, and his words were vague, "How can I teach others?"
"Why don't you understand?" Wang Ning glanced at him with strange eyes, "Isn't this common sense?"
"Why don't you understand?" Bai Zhen also glanced at him with strange eyes, "Isn't this common sense?"
Bai Yang held back for a long time, and fought back angrily:
"Why can't the two of you get into college? Doesn't it matter if you have hands?"
"Hmm bg4mxh, this sounds so difficult."
Pinellia is a bit in trouble.
She has a pen and paper on her desk, ready to be a good student who listens carefully, but the other party comes up with a large number of English abbreviations of network protocols, which makes her dizzy. Students who add, subtract, multiply and divide open the ten volumes of Langdao.
"Bg4mxh, I don't understand at all, these things are so difficult, do I have to learn it?"
"This is a theory, over."
"What's the use of theory?"
"Theory is useless, over."
"Then" Ban Xia asked cautiously, "Can I not learn if it's useless?"
"You don't need to study, over."
Bai Yang is crisp and sharp.
Ban Xia cheered over there, and there was the sound of dropping a pen.
As a person living in the post-apocalyptic era, for the first time in her life, she experienced the great joy of temporarily canceling the exam.
What a precious experience.
"Miss, let me tell you, anyone who forces you to learn complex theoretical knowledge is a devil. Is there anything more useless than conic quadratic function sequence sets in this world? No! If you want to say that there must be, then It is to calculate how many times a charged particle can rotate in an electric field and a magnetic fieldDie to mathematics! To hell with physics! To hell with mathematics and physics!"
"Death to mathematics! Death to physics!" Ban Xia also shouted, "Go to hell with mathematics and physics!"
"Go to hell with the math test and the physics test!" Bai Yang shouted, "Down with the three mountains of mathematics, physics and chemistry!"
"Down with the three mountains of mathematics, physics and chemistry!"
"Liberate high school seniors around the world!"
"Liberate high school seniors around the world!"
"Hurry up and get down to business." The old man knocked on the door outside, "Otherwise all high school seniors in the world will die, who will you liberate?"
Banxia opened the shell of the gr3188 repeater, and under the guidance of Bai Yang, she had to find out the structure of the repeater first. The structure of the gr3188 analog repeater is quite simple, and in layman's terms it is stupid, big black and thick, opening the back cover is Cooling fan and messy cables, remove the fan, you can see the tail end interface of the internal base station, the basic components of gr3188 are two base stations, as well as the relay control board and duplexer, they are from top to bottom Stack in three layers.
Most components of the repeater don¡¯t need to be changed. In Wang Ning¡¯s words, the hardware of the repeater itself is sufficient to support your needs, just like a movie that can be played on a color LCD screen, or a black and white TV. What Banxia has to do is to find the right connector and insert the correct plug into the correct connector. Only experienced veterans know how to plug it in, so Wang Ning and Bai Zhen are required to guide the whole process.
Bai Yang is very fortunate that building a remote control system does not involve too precise operations, and Ban Xia does not need to hold a soldering iron to solder the pcb board, otherwise it would be a rush to put the duck on the shelf.
"Miss, now tell me what you saw, over." Bai Yang asked while pinching his hands.
"Hmm" The girl was wearing earphones, and the gr3188 repeater was placed on the table in front of her. Ban Xia tilted her head and drilled into the case, "I saw a lot of wires, some were red, some were black, and some were white. , rough and thin, messy."
"What else? What else is in the case? over."
"There are also the buttocks of two amateur radio stations inside the case. The two radio stations are stacked one on top of the other. They are fixed in the case with screws and cannot be taken out." Ban Xia then replied, "There are several thick wires inserted into the buttocks of the radio stations. superior."
"Don't touch it, what else? over."
"There is also a black iron box, which is at the bottom of the case. There is no opening, and it is sealed."
"You don't need to touch it." Bai Yang said, "Miss, listen carefully. I'm going to tell you now which interfaces we need to use and which ones we don't need, over."
"Yeah, I'm listening." Ban Xia nodded.
"You first count how many wires are plugged into the buttocks of the two base stations." Bai Yang instructed, "How many sockets are there, over."
"One two three" the girl began to count, "six wires, a total of six wires, three wires are plugged into each radio station, one is the thickest, black, with a wide and flat socket, and the other is black, with a socket It's round, the last one is white and the thinnest, and it's connected to a black square piece of plastic, inserted into the butt of the base station"
"That's a green piece of plastic, over." Bai Yang said.
"Green?" Ban Xia opened her eyes wide, "No, I think it is black."
"That's because there's too much dust and it's too dirty." Bai Yang said, "That piece of plastic can be pulled out, you pull it out and wipe it, over."
After a while, the girl's exclamation came from the earphones.
"Really! It's green! There are circuits on it!"
"Yes, this is a pcb board, that is, a printed circuit board, and the printed boards are all green." Bai Yang explained, "What we need to use is this interface, this thin white wire, and it will relay The station is connected to 725, can you understand? over."
Ban Xia nodded half understanding.
"Understood."
bg4mxh once said that going to class is learning, and learning is going to class, and learning in class is the ordeal that everyone has to go through when they grow up. Every child who grows up to seven years old must be forced into prisons and concentration camps called schools. From then on, he will lose his freedom, at least Only after the age of 22 can he be liberated. Now Banxia looks at the black box-like relay station in front of him, thinking that he has to understand it, and suddenly feels that the world before the end is not good everywhere.
It is really good not to go to school.
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