ushernet Chapter 238 Effective Distance
Chapter 238 Effective Distance
Chapter 238 Effective Distance
I went back to the dormitory and took a shower. Just as I was holding the washbasin and putting on slippers, I met Chen Xi and his group running back in the corridor.
"Squad leader, is anyone in the water room?"
"empty."
"speed."
Several people rushed out at lightning speed, throwing away their schoolbags, holding towels and washbasins...
Qiu Huoming shook his head and returned to the dormitory with a smile.
Starting the next day, he had to attend classes as usual. After being idle for so long, he still felt a little uncomfortable returning to the classroom.
Fortunately, the second class was an experimental class. Qiu Huoming gathered several roommates in the dormitory to form a group. The teacher temporarily added two more people, one was Luo Jinxiu's younger brother Pan Jincheng, and the other was the cultural and arts committee member Zhang Chunhua.
The course "Antenna" is also a focus. At that time, the antenna course was listed as a separate professional course, but later generations merged it with microwave technology.
Courses like "Analog Circuits" have not yet been offered, and this is not something that freshmen can understand and master right now.
Zhang Rui was probably a little surprised that the other party would apologize. She lifted her long bangs that were scattered on the front and said, "It's all for work. I don't mind..."
"I've submitted the application and we'll see how much funding I can get."
He shook his head and thought, if these two meet, there will definitely be an argument.
These are all talented people. Fortunately, most of them are used to a simple life and do not have high requirements for the office environment.
When Teacher Xu thought of Qiu Huoming's love of money, he couldn't help but smile. This is not a shortcoming, as long as a gentleman loves money and gets it in a proper way.
Then he asked, "Xiao Zhang, Xiao Huang, are you used to staying here?"
This office is an independent office for Zhang Rui. It is conceivable that Huang Xide took the initiative to make trouble this time.
The Radio Department intercepted two foreign-educated teachers at the same time this time, which is beneficial to the development of the entire department. Teacher Xu did not stay here for long and turned to walk towards the office building.
"Huh..." Huang Xide first let out a long breath. He was currently temporarily staying in Teacher Xu's office. His treatment was the same as Zhang Rui's. He had an independent office, right across from Zhang Rui's. However, that office had not been completed yet.
"Also, he is also your student. You can exchange ideas. This kid's way of thinking is different from that of ordinary people. As long as he doesn't go astray in the future, his future is limitless."
Huang Xide came back just after him.
"Of course I care. I've read the newspaper and the layout of the China Pavilion is quite good."
The semiconductor competition between the United States and the Sakura Country has entered a white-hot state, while China is still in its infancy.
"I didn't realize you cared about these things. It will be over soon. It will only take a few days."
Teacher Xu glanced at him. This guy didn't know all the Chinese and often said shocking things, but it was not his fault. Without a Chinese environment, he could speak Chinese so fluently, which meant he was talented.
"Director Xu, has the dean returned from the World Expo in New York?" Huang Xide asked.
Huang Xi pulled out a chair and sat down. "I'm already old at 30."
Teacher Xu tapped the table with his fingers. There was a prerequisite for the two of them to agree to stay in the School of Engineering, which was to establish a high-level domestic semiconductor laboratory.
Zhang Rui agreed: "Same, but these are minor matters and will not affect my work."
Teacher Xu smiled and said, "You'll be able to see it in a few days. When the magazine is distributed, I'll be the first to give it to you."
Huang Xide thought for a moment and asked, "What was the content of Qiu Huoming's thesis last time? I'm really curious. He's only a freshman, what can he write about..."
Huang Xide smiled and said, "Except for the toilet here, I'm quite used to everything else..."
The young woman is called Zhang Rui, she is from Hong Kong and graduated from Stanford University. She and Huang Xide had known each other in the United States in their early years and happened to be on the same flight when returning to China. Logically, the two should have been able to get along well, but unexpectedly, they never had a good conversation because of the dispute between their respective colleges.
"This time, Dean Liu and his team went there with a mission. When he comes back, we will hold a seminar."
Teacher Xu smiled and said, "That's good. If you have any difficulties in life or work, please feel free to tell me..."
Zhang Rui turned his head and looked at Teacher Xu. "Please excuse me, Director Xu. I have no intention of arguing with him. I am still preparing for class."
"Okay, I want to hear his opinion, too."
In addition, some teachers don’t like sharing an office with others, so he tries his best to solve this problem.
Huang Xide responded and then asked, "Director Xu, how long will it take for the laboratory I applied for to be approved?"
After comforting the two of them, he leisurely returned to his office.
As soon as they met, they were at loggerheads.
Everyone likes experimental classes. Firstly, they can exercise, and secondly, they can intuitively understand the theoretical knowledge they have learned by doing hands-on activities.
"Hey, what are you arguing about again? You didn't even hear me knocking on the door..." Teacher Xu joked.
Hearing him exhale, Teacher Xu smiled and said, "Young people are full of energy."
He walked along the corridor, checking the progress of the layout of the offices one by one. These two floors were the office space of his department. The department was currently recruiting people, so naturally some vacant offices had to be renovated.
Huang Xide pushed his glasses and calmed down. "I'm sorry, we have only been discussing one topic until now. I originally wanted to ask Rena for some opinions, but in the end it became a debate between me and her..."
Before I returned to my office, I heard Huang Xide speaking American English at a very fast speed. Mr. Xu's English was not very good, and after listening carefully I realized that he was debating with someone.
Teacher Xu nodded and said, "Necessary debate is also for better progress."
With him here, Teacher Xu doesn't even smoke cigarettes, so these days, he often goes out and smokes a cigarette whenever he gets the chance.
Teacher Xu listened outside the experimental classroom for a while. He couldn't help laughing when he heard the laughter coming from inside from time to time. He had also been through this stage. Experimental classes are absolutely necessary. Not only that, but efforts should be made to strengthen them. Those who study radio cannot just study blindly, but need to use their brains actively and apply what they have learned.
The door was ajar. He knocked but received no response. He then reached out and pushed the door open. He saw Huang Xide and a young woman arguing with each other.
But it is not certain. For example, the two machines sent to the World Expo this year, the Great Wall 1 and the Dawn 1, are the crystallization of the knowledge of many scientists...
When President Liu comes back, I will listen carefully to the responses of international professionals to these machines.
In this environment, the country's investment in "semiconductors" is unprecedented, which is one of the reasons why Teacher Xu dared to make a promise to them.
"Okay, we still have a lot of equipment to purchase. Once the budget is approved, we have to buy them. This stuff is changing with each passing day and developing too fast..." Huang Xide saw that he replied quickly and knew that this matter had a chance.
Huang Xide sat on the chair and turned on the computer. He used it to write his lesson plans. He would use this machine until the end of the month, and it would be given to Zhang Rui next month, so he naturally had to make the best use of it.
Seeing that he was also working, Teacher Xu took out a pack of cigarettes from the drawer, walked out quickly, hid in the bathroom, smoked a cigarette, and then returned to the office contentedly.
In the evening, after dinner, Qiu Huoming hurried to the laboratory. As soon as he opened the door, he found a boy inside who was lying on the table soldering components.
Hearing the voice, the boy looked up at Qiu Huoming.
Qiu Huoming was stunned for a moment. The graduate students had no classes today, so he came.
Seeing that he was in a daze, the other party thought he was a staff member and hurriedly explained: "I will leave after I finish welding this..."
"Oh, it's okay, I'm here to do an experiment too." Qiu Huoming looked away, walked to the cabinet at the back, and took out the semi-finished product he had made yesterday.
This "walkie-talkie" does not have a casing and is simply packed with cardboard. Compared with the sophisticated walkie-talkies of later generations, this one is much cruder.
But this is the first machine made by Qiu Huoming, and it’s not good enough.
He carefully moved it to the workbench, turned on the desk lamp, took out the radio from his bag, turned it on, adjusted the channel, and then moved the radio away.
He held the microphone of the intercom and shouted, "Dongguai Dongguai, I'm Dongyao Dongyao..."
The same sound came from a radio not far away.
When talking, there is no noise, but as soon as you stop, the noise is obvious.
He turned off the radio.
Put away your 'walkie-talkie'.
I took out the circuit I made yesterday from the cabinet, took out the accessories again, heated up the soldering iron, and decided to make the other one first.
We will solve the signal interference problem later.
He started to make it in full swing. The boy on the other side showed a suspicious look on his face. He put away the components he had just soldered, stood up, thought for a while, and walked to Qiu Huoming's side. He asked, "Are you also writing a paper?"
Qiu Huoming looked up at him and said, "No, I'm working on the equipment."
"What device?"
Qiu Huoming stopped the soldering iron in his hand and said, "It's not done yet. I'll tell you when it's done."
"I just heard a voice on the radio. Is this the radio station?"
Qiu Huoming frowned slightly, "Let's talk about it after it's done. I don't know if it will succeed."
"Oh, okay then." After he said this, he still did not leave, but stood behind Qiu Huoming, staring at him closely.
Qiu Huoming felt as if he had been stabbed in the back. He turned around and asked, "Are you done with your work?"
"When I'm done, don't worry about me. I'll just watch and not say anything."
"..."
Seeing that he didn't move, the boy urged him, "Go on."
"Brother, I'm not used to being stared at..." Qiu Huoming said straight to the point.
The boy walked back to his original position and said, "I'll just watch from here. Is that okay?"
Seeing that he was far away, Qiu Huoming picked up the soldering iron again.
I lowered my head and started welding.
The other party was also weird. He just sat there and didn't come over, waiting there behind a bunch of machines.
Qiu Huoming was a little worried at first, but later he ignored him.
I fixed the machine myself.
Then he put the box of things he had made earlier together with it and looked at his watch. There were only ten minutes left until curfew.
He was startled, put all the instruments back in place, put on his backpack, and walked out holding the two boxes.
When they reached the door, Qiu Huoming turned around and asked, "Remember to lock the door."
The boy was stunned for a moment, then responded.
When Qiu Huoming saw that he agreed, he immediately ran away.
I was lucky today and managed to get back to the dormitory before the lights were turned off.
I had just put my things down and hadn't had time to hang up my schoolbag when the lights suddenly went out.
Chen Xi climbed onto the bed and asked, "Squad Leader, what are all these bags of yours?"
Qiu Huoming fumbled under the pillow to take out the flashlight, and with a "click", he turned on the switch. A ray of light hit the wall, shaking.
"Didn't you say last time that you wanted to make a walkie-talkie? I have assembled all the main components. We don't have time to try it today. Let's take it out tomorrow morning to see if it can be used..." Qiu Huoming answered as he walked to the washbasin rack, took down the towel, and was about to go out when he heard Chen Xi sit up from the bed again.
"I just saw the chapter about circuits, and you've already finished it?"
He had borrowed several books from the library before, one of which was a book called "Young Semiconductors". He hadn't finished reading it yet, but Qiu Huoming had already put it into practice.
Yang Shijun leaned out of bed and sighed, "I just figured out what electromagnetism is for..."
"Forget it, squad leader, you should leave quickly. Comparing yourself with others will only make you angry." Wen Yuanyi responded sourly from the upper bunk.
Qiu Huoming laughed in silence and did not answer. He walked towards the bathroom in his slippers with a tap-tapping sound.
The next morning, several roommates did not rush to grab the first pot of porridge, but stayed in the dormitory.
Chen Xi and Wen Yuanyi went downstairs holding one of the half-finished "walkie-talkies". Qiu Huoming opened the window, erected the antenna of the machine in his hand, turned on the switch, and gestured to them who were standing far away downstairs.
The moment the other party's machine was turned on, noise started to emanate, but it was still within a controllable range.
Qiu Huoming pressed the microphone and shouted: "Dongguai Dongguai, I'm Dongyao Dongyao..."
Yang Shijun looked at Chen Xi and the others from the window and said, "They reacted!"
As soon as he finished speaking, Chen Xi's excited voice came from the loudspeaker in the room, "Dongyao Dongyao, I'm Dongguai Dongguai, we heard your voice."
Yang Shijun was startled, "Fuck, I really heard it."
Qiu Huoming smiled slightly and shouted into the microphone: "Dongguai Dongguai, walk 50 meters back and I'll wait for your reply."
Chen Xi and Wen Yuanyi held the machine and started walking to the back...
Qiu Huoming was waiting there with anticipation.
The current distance is 50 meters. If the signal can be received even after moving back 50 meters, then the effective distance is 100 meters. His goal is 1000 meters, but he will have to wait until he returns at noon to test it again.
Not long after, the walkie-talkie in his hand rang again, and the voice was still clear.
Qiu Huoming laughed loudly, "Dongguai Dongguai, I am Dongyao, you can come back now..."
He turned off the power, and the next step was to develop a set of equipment to suppress electromagnetic interference. The simplest way was to wrap it with metal. Copper, aluminum, steel and other metal materials could achieve the same effect.
This way, the machine will be even bigger.
And the outer packaging, which is currently in cardboard, needs to be designed with a good outer shell...
Just as I was thinking about it, Chen Xi and Wen Yuanyi came back with excitement on their faces.
"Fuck, this is amazing, this is wireless, I finally understand, those scenes in the movie..."
Chen Xi cleared his throat, "Requesting support! I'm at position 001, requesting support..."
Qiu Huoming put away the device and replied with a smile: "Those so-called 'walkie-talkies' you mentioned are much larger than ours, and their reception range is also wider than ours..."
"Let's go and have breakfast first."
As soon as the words fell, everyone seemed to be pressed on a certain acupoint, and suddenly they all sped up, "Twenty minutes late... Hurry!"
Not long after, in the cafeteria, Qiu Huoming and his group were already queuing at the window, each carrying their schoolbags and holding their lunch bags.
Wen Yuanyi's face still had a hint of excitement, "If this can be used for long-distance calls, I will install one for my parents..."
Qiu Huoming coughed lightly, "I don't think it's impossible..."
He looked around the crowd and said, "Let's talk about it when we get back."