Heavy Truck Chariot In The End Times
Chapter 63 Wireless Network Distance
Drones in the sky are the tactics Shen Cong thought of before the end.
It is now possible to restore this tactic, and in this dazed apocalypse, it will definitely be able to exert great value.
Suppressing the excitement, Shen Cong began to study this direction. For the stability of the equipment, he first guided the Vajra to alloy the wireless router.
Repair some poor circuit connections caused by rust.
The Vajra is currently at the "pseudo Lv1.021" level. The reason it is "pseudo" is because it is obvious that the entire "Lv1" defined before the Vajra can continue to expand. According to Shen Cong's level quantification, the limit Vajra is the standard definition of "Lv1". It has not yet reached this standard, and the exact value is not known.
Therefore, the current quantitative grading system continues to use the old version of the previous definition that was wrong. In order to distinguish, a "pseudo" word is added in front.
The pseudo-Lv1.021 Vajra number quickly adjusts the activity and alloys the router.
The router is not a simple iron product, the alloy speed is a bit slow, but the alloy is finished after half an hour.
Complete the alloy, turn on the power, and connect all the devices that can be connected to wireless and have office modules to the wireless router to form a local area network. Set up the management mode of the office module. Soon, Shen Cong used a mobile phone to activate the office module and took over all the equipment.
"The radar adjusts the rotation angle." Shen Cong started to operate on the phone, and then the radar on the roof of the car really started to tilt an angle in accordance with the instructions of the phone.
Shen Cong couldn't help but nodded: "The signal connection is very stable, and the strength is also very stable... The Vajra should have the ability to resist interference. This is probably related to the activity. The quality of the signal in the car can reach 100%... It's not dark, I will test the effective distance outside the car."
To test communication, he couldn’t do it alone, so he called Zhang Youhai, who had always wanted to be a little brother—in fact, Zhang Youhai moved since he saw Shen Cong. He originally settled down on a ruined floor a little further away, now he is moving here. Here.
"You take this phone and try to go as far away as possible. I have connected the phone to the internet. When the internet is disconnected, you will come back."
"Boss, can you connect to the Internet? Can you contact the outside world?" Zhang Youhai exclaimed while holding his mobile phone.
"No, LAN."
Zhang Youhai shook his head disappointedly, took the phone and walked away.
In the first test, the connection was directly disconnected after only reaching 20m. The signal was almost the same as usual, and 20m was the limit. Not discouraged, Shen Cong directly used Vajra's expansion capability to change the band of the wireless router's communication module.
Unlike the highly integrated module of DJI 8, the structure of the communication module of the wireless router is relatively simple, and Shen Cong did not learn the principle of communication less.
As long as you understand knowledge, the ability to extend is a bug-like existence.
It is conceivable that if Shen Cong has mastered all the structure and theoretical knowledge of the "Terminator", he can completely rely on the extension of the Vajra to clone a Terminator. Of course, this is a theory, and Shen Cong's current knowledge reserves can also change some simple material structure states.
He has ambitions, so he will take time to learn knowledge in the last days.
After modifying the band, start the second test.
Still disconnect the signal at 20m.
Shen Cong continued to modify.
The 20m source is disconnected.
Modify again.
This time it disconnected after reaching 22m, which seemed to be a bit dazzling. Shen Cong calmed down and continued to explore the band.
Tossing back and forth a dozen times, finally doubled the distance of the signal. In a special band, the signal can maintain stable output within 20m, transmission deceleration within 30m, intermittent signal within 40m, and complete disconnection at 50m.
This is far from the 200m distance that Shen Cong hopes. To ensure stable signal transmission within 200m, DJI 8 can become an electronic eye.
"Now it can only be transmitted on the ground by 30m, and it may be shorter above the head. The idea of DJI 8 is a bit difficult to succeed." Shen Cong frowned.
"How is it?" Zhang Youhai came back and asked curiously.
"Do you know the radiation interference in the air?" Shen Cong asked suddenly.
Zhang Youhai said unclearly, "Radiation interference? Yes, it's the end of the world. There should be radiation interference."
Shen Cong glanced at him in surprise. Zhang Youhai didn't even know that there was high-intensity radiation in the air: "Do you have a Geiger counter?"
"what is that?"
"A must-have for the doomsday..." Shen Cong finds it difficult to communicate with Zhang Youhai. The Geiger counter is a must-have product for the doomsday of the wasteland type. Basically, people who have fantasies about the doomsday will prepare one for detecting radiation concentration.
But thinking that the other party was just an ordinary person, Shen Cong stopped continuing the topic: "What do you think of evolution?"
"Evolution..." Zhang Youhai glanced at Shen Cong and said with emotion, "Envy."
"I'm asking you, what do you think is the reason for evolution."
"Ah, this, I don't understand. Isn't this something that scientists should study? We flat-headed people don't even have enough food and can't worry too much."
Shen Cong frowned. He didn't know if he was talking to himself, or he was saying to Zhang Youhai: "Don't always wait for others to do it... Go back, wait for me to change the signal, and then find you."
...
Kang Dang, the hideous truck, the door closed.
Zhang Youhai has become accustomed to Shen Cong's indifference. The struggle and humiliation of the last two months of life in the last days have smoothed out his last bit of energy.
Facing the evolutionary, instinctively feel that he belongs to the humble party.
In fact, even if he is not an evolutionary, as long as the opponent has guns, weapons, and dare to kill, Zhang Youhai feels like he is humbler than the opponent.
Before the cataclysm, he was doing a small business every day and couldn't make a lot of money, but he couldn't be short of money. He had fun with his friends and friends, and he was fine to scold the government for strict control and let people lose their freedom. Don't mention how happy you are when you are young, and you don't think anyone is more noble than others.
When the last days come, I know what freedom is.
Without a powerful government control, this new society is the virgin forest of The Weak are Prey to the Strong. Those who dare not to kill smash their ass and eat ashes, kill and set fire, like Zhang Tianshen and a group of people, eating human blood. Steamed bun has a taste.
"Hey." Zhang Youhai shook his head mockingly, "Evolutionary...actually I just want to know what it's like to be an evolutionary."
...
30 meters slow down, 40 meters unstable, 50 meters directly disconnected.
Such signal strength is far from reaching Shen Cong's requirements.
But at present, he only found this special band, which can carry signals at a little longer distance. Without a communication module with better accuracy, he can dig out the potential of communication distance.
After thinking about it, Shen Cong plans to start with equipment conditions.
He wants to design a plan to amplify the router's fixed-point signal transmission and reduce the radiation interference to the signal. As for the electromagnetic signal, he still did some research, and he got the scrap 15A radar, which he repaired by himself. After the end, I have always wanted to increase the search intensity of the car radio.
There will be some experience.
If the wireless router is used as the base station alone, the power is still too small, and the signal does not go far.
If some mobile, China Unicom, and telecom mainframes can be removed from somewhere, and some antennas and feeders can be removed back, the Vajra can be deployed as a mobile base station. In the residential area where Shen Cong once lived, on the walls of the corridors, there are a large number of hosts from three communication companies, including 3G, 4G, 2G and other different models of hosts and cellular machines.
He has studied that he can still build a simple small base station.
However, there is no equipment for the time being.
"We will let Zhang Youhai look for it to see if we can find some hosts from the ruins of the community, but it should be difficult. If I remember correctly, these hosts are installed in the elevator room on the top of the building... There will be no shortage of antennas. There will be in the stairway, even if there is only one, it is good."
What he wants most is to put the drone in the eye, even if it can't be reached at an altitude of 200m, at least a few kilometers away can be seen at 100m.
Of course, it is worthy of consolation that a special wave band has been verified, and the signal can barely be transmitted at a distance of 30m from the ground. If you want the transmission distance to and from the top of the head, it will increase accordingly.
If it weren't for the crowds around here, Shen Cong really wanted to take out the 8th generation of DJI Elf immediately to take off and check the signal transmission distance.
With a glance, he found that in the camera picture, Old Man Li and Wan Quan had already returned.
...
The news that Old Man Li brought back was that Wang Gen intended to sell diesel to Shen Cong. He had stored a lot of gasoline and diesel, basically he had collected all the gasoline and diesel in the south of the city.
"However, boss Huang, Brother Wang Gen wants to meet you. I have disclosed to him that you are an evolver according to what you said. He wants to share with you the evolutionary experience of evolvers." Old man Li said.
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