Chapter 111: Trans-Time Orbital Landing Campaign
"…It's the Red Hare among the horses, Miss, OVER."
"Well, it looks just like the handle of the Fang Tian Hua Ji used by the horse Red Hare!"
Banxia held up the Yagi antenna in her hand high. This thing was made of a thin wooden strip and ten clotheslines. It was not very heavy, but holding it in her hand for a long time would cause backache. Section Chief Wang said that if she wanted to use it to track satellites accurately and quickly for a long time, it would be unrealistic to rely on manual labor. At least an equatorial mount was required. Of course, it was unrealistic to ask Banxia to rub the equatorial mount by hand. The only reasonable way was to hang the relay satellite 36,000 kilometers above Nanjing.
“How do you use this antenna?”
"Tie it to the radio, Miss." Bai Yang explained, "The satellite operates in the UV band, and its downlink frequency is 430MHZ. The 725 cannot receive radio waves of this frequency, so you must use the radio to receive it. OVER."
"Just rely on this walkie-talkie?"
Banxia fiddled with the Baofeng UV9R radio in her hand with some surprise. How could such a small thing communicate with a satellite thousands of miles away?
"Don't underestimate the walkie-talkie in your hand, Miss." Bai Yang said, "As long as you master the method and skills, it will be no problem to use it as a satellite phone. OVER."
“It’s amazing.”
Banxia exclaimed.
"It is just one part of the whole plan. It is not that it is great, but the whole plan is great. Neither of them can be missing." Bai Yang said, "By then, there will be two satellites above your head, one for eyes and one for ears. The reconnaissance satellite is responsible for taking pictures. It will circle the earth once an hour, and pass over your head once an hour. The relay satellite stays in a synchronous orbit 36,000 kilometers high... Hey? What's wrong, Uncle Zhao?"
"What's wrong?"
"Uncle Zhao just came back. He had a meeting at the provincial party committee this afternoon, and asked me to help him find a pair of slippers." Bai Yang replied, "My mother found him a pair. Let's continue. The relay satellite is in a synchronous orbit. Its relative position to you is fixed, which means it will always be suspended above your head. It is this satellite that transmits data to you. OVER."
Judging from the plan given by the aerospace group, the structure of the relay satellite is quite simple. It has only two functions, storage and forwarding. It is not large in size, 30 cm high, 20 cm long and wide, and weighs more than ten kilograms. The aerospace group said that this thing was temporarily requisitioned from a domestic commercial satellite project. All functions are ready-made. The requirements were given the day before, and it was found in the 518th Institute of the Fifth Academy the next day.
- Of course, this CubeSat cannot be used right out of the box. It needs to contact the Yagi antenna of BG4MSR in a synchronous orbit 36,000 kilometers high. This is a rather arduous task, and it is very difficult to do this because the orbit is too high.
Thirty-six thousand kilometers - What is the concept of thirty-six thousand kilometers?
The circumference of the Earth's equator is 40,000 kilometers. 36,000 kilometers is equivalent to running 90% of the distance around the Earth's equator, which is equivalent to running from the South Pole to the North Pole and then from the North Pole to the South Pole. For such a long distance, at one end is a small satellite weighing more than ten kilograms, and at the other end is an antenna made of wooden boards and clothes hangers.
These two still need to talk.
Normally, the Yagi antenna's small body can only reach low orbit. The comrades in charge of this project at the Fifth Academy tossed and turned, scratched their heads, and finally decided to add a Yagi antenna on the relay satellite. It is usually folded and unfolded in the sky. The two Yagi antennas have to fight across the void of 36,000 kilometers to transmit the data.
The 518th Institute is one of the joint contractors of the reconnaissance satellite. They have experience in extraterrestrial probes, so the project is led by the Fifth Academy and the Changguang Institute, each responsible for a module. The satellite and radar are developed by the Changguang Institute, and the power and orbit design are the responsibility of the Fifth Academy. One ensures that the satellite can see the Big Eye, and the other ensures that the satellite can return to orbit normally twenty years away from home.
They called this satellite "Zheng Lun".
The relay satellite that went into space with it was called "Chen Qi".
The Soyuz rocket that launched them is called "Heng Ha Er Jiang".
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The rocket was launched on December 18, 2019.
On the same day, Banxia completed her PSK image data transmission system.
December 18, 2019 in history may be unremarkable in the eyes of most people. On this day, a Russian-made Soyuz-STB carrier rocket was launched from the French Guiana Space Center, carrying the Italian CSG1 Earth observation satellite and the European Space Agency's CHEOPS space telescope. It was just an ordinary commercial carrier rocket, an inconspicuous one among the hundreds of rocket launches throughout the year.
But in the history recorded by others, on December 18, 2019, a Soyuz-STB carrier rocket nicknamed "The Two Generals" was launched from the French Guiana Space Center. It carried two top-secret payloads and was tasked with an important top-secret mission, heading for the distant future twenty years later.
Operation Dongfanghong has been fully launched. If it is a military operation, then there has been no such complex military operation since World War II. Seventy-five years ago, on June 6, 1944, Operation Overlord was launched in the morning mist along the European coast. 170,000 Allied vanguard troops landed in Normandy, which kicked off the prelude to a complete reversal of the situation on the Western Front of World War II. This was the largest landing battle in human history. Seventy-five years later, on December 18, 2019, Operation Dongfanghong was officially launched on an unknown historical stage. A Soyuz STB carrier rocket carrying two satellites will reach the Earth's orbit in 20 years to conduct a cross-time and space strategic reconnaissance. This is the most complex super-time and space orbital landing battle in human history.
It has to be said that Zhao Bowen is far-sighted. He told Bai Yang very early on to teach BG4MSR how to build a data transmission system, and almost all subsequent work will be based on this.
The image transmission system with Icom725 amateur radio station, Celeron 3150 industrial control motherboard and Philips CRT monitor as the core allows Banxia to see the world twenty years ago, and Baiyang to see the girl twenty years later. The remote control system with GR3188 analog repeater station as the core is a necessary condition for launching satellites. The 725 shortwave radio station cannot work in the UV band, so if you want to communicate with the satellite, you can only rely on the handheld radio in Banxia's hand.
Now everything is ready. Bai Yang went to take photos of Banxia as promised. He even took a leave of absence from school that afternoon.
"Where to go first?" Bai Yang asked, "Xuanwu Lake? Zijin Mountain? Or Xinjiekou?"
"Confucius Temple! Let's go to Confucius Temple first!" Lian Qiao suggested, "And Qinhuai River. To be honest, I have been in Nanjing for so long, but I have not been to Confucius Temple yet."
"They are all man-made attractions to trick outsiders," Bai Yang said. "There is nothing interesting about a street of shops. Locals never go there. It's better to go to the Yangtze River Bridge."
“I’m not from here!”
"Then let's toss a coin to decide. Heads means we'll go to Confucius Temple first, and tails means we'll go to Purple Mountain first." Bai Yang took out a Morse code practice coin from his pocket, and flicked his thumb upward. The coin flipped and flew into the air, but before it fell, Lian Qiao, who had quick eyes and hands, caught it.
"What are you doing?"
"What is this?" Lian Qiao was very curious and held the practice coin high. "Game coin?"
"Morse code practice coin. Look, it has the Morse code of the 26 English letters engraved on it. If you want to memorize the Morse code, you can buy one on Taobao for 20 yuan." Bai Yang snatched the coin from her hand and threw it to the ceiling again.
The coin flipped and rose to the highest point, and the kinetic energy was converted into potential energy. When it reached the highest point, it tended to be still, but this state was immediately broken. The coin flipped and fell again, faster and faster, and finally with a "snap!", it was caught by a pair of small hands.
(End of this chapter)
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