Testing does not stop at home. Testing is being conducted secretly in various non-sensitive areas around the world.
In Prydz Bay, Antarctica, August in the northern hemisphere is the summer of bright sunshine, while in Antarctica in the southern hemisphere, it is the winter of ice and snow.
The icebreaker tore through the ice on the sea and approached Zhongshan Station.
Because the ice is too thick, the icebreaker can advance to about five kilometers from Zhongshan Station, then stop and unload a large number of supplies.
The scientific expedition team of Zhongshan Station was already waiting for them nearby, and then used sleds to pull the supplies back to Zhongshan Station.
In the snowstorm, the convoy faced the fierce and biting wind, leaving scratches on the ice. At this time, there was only a vast expanse of white between the sky and the earth.
The members of the scientific expedition team were wearing thick down jackets and sunglasses to prevent snow blindness. The snowstorm was getting bigger and bigger, and the sky was starting to get dark, and aurora appeared in the mid-air.
The polar night in Antarctica is shrouding this continent. However, the latitude of Zhongshan Station is near 69 degrees south latitude. It is not the highest latitude scientific research station. The truly dark scientific research station is the American scientific research station located at the South Pole.
——Amundsen Scott Station.
Seeing the hazy lights of Zhongshan Station, the members of the scientific expedition team breathed a sigh of relief. Antarctica in winter is not only snowstorms and polar nights, but also terrifying low temperature environments.
"Huh!" With a breath of white air, the stationmaster looked at the supplies in the warehouse and breathed a sigh of relief. He picked up the supply list and counted these things.
Suddenly he found some electronic equipment on the list.
[30 mobile phones, 15 laptops, and 6 micro base stations.]
"Why did you bring a mobile phone and a laptop here for a base station?" Xiao Nanfeng, the deputy webmaster, looked at the list and asked in surprise.
The networks in Antarctica are all maritime lines using satellite communications. The speed is about 5M per second, and you can only make phone calls.
Originally, China Telecom was going to come to Zhongshan Station to build a 3G base station this year, but it was suddenly cancelled.
Anyone who has been to Antarctica knows that the network here is not only slow, but also intermittent and often disconnected. It is also very expensive, with a phone call costing more than 500 yuan.
The webmaster Zhang Chengcai also had a weird look on his face, but after he read on, he realized that this was a test project for testing satellite communications.
"Yang Sen."
"Zhang Zhan, what's going on?" A energetic young man in his early twenties came out from one side.
Zhang Chengcai patted the box and said, "I'll give you a task. Install these two base stations."
After "Base Station" Yang Sen opened the box, there were indeed two devices similar to routers inside, as well as some spare parts such as transformers and wires and cables.
He took out the instruction manual, installed the two base stations on the east and west sides of Zhongshan Station according to the instructions, and then turned on the switch.
"Where's the signal?" Yang Sen himself had a Nokia mobile phone, but found that there was no signal at all. After shutting down and restarting, it was still the same.
After taking out the manual for the first time and reading it carefully, he realized that it was an experimental product and did not support communications beyond terahertz.
He quickly took out a mobile phone from another box. It was a brand new smartphone. Considering the weather in Antarctica, there was also a pair of touch screen gloves in the mobile phone box.
After putting on the touch-screen gloves, he discovered that the smartphone did not have a SIM card slot and no SIM card was provided. In this case, he could only ask for help in the manual.
"It turns out that the SIM card has been cancelled." Yang Sen said to himself as he followed the instructions and completed the binding directly with his ID card.
After entering the mobile phone interface, I finally found a signal this time.
XK346G... what the hell kind of memory? He looked at the few apps and tried to open Citizen Home.
Hey, so fast! How is that possible?
He opened a video website and directly played an old movie. The result was very smooth, with no lag or buffering at all.
Confused about whether it was local storage, Yang Sen tried calling the phone at home to see if the satellite communication would work.
A few seconds later.
"Who are you feeding?" is the mother's voice.
He didn't care to explore satellite communications and replied excitedly: "Mom, it's me."
"Komori" his mother asked uncertainly.
After talking for more than ten minutes, my mother in China confirmed that the caller was Yang Sen. After hanging up, he looked at the cell phone in his hand in surprise.
However, he suddenly reacted and quickly opened the fee inquiry. Don't cheat anyone! After all, he knew the Internet fee in Antarctica very well, it was several hundred yuan a minute.
[Dear users, since this service is in the trial operation stage, there are no charging items yet. Please fill in the user experience in the series of forms. Our company will continue to improve related services...]
"Awesome!" Yang Sen quickly filled out the user experience form.
Then he took his mobile phone and ran towards the webmaster Zhang Chengcai.
"Yang Sen, it's installed."
"Okay." Yang Sen paused and continued: "Zhang Zhang, I found a good thing, look at it."
After saying that, he turned on his phone, played the movie, and visited other websites.
"This..." Zhang Chengcai stared at the mobile phone page in shock. Whoever uses the network in Antarctica knows how this mobile phone can do it.
Yang Sen quickly explained it, and Zhang Chengcai and others took out the other 9 mobile phones and 5 laptops assigned to them. After some trial use, they discovered that this terahertz communication is really awesome.
Everyone quickly took their mobile phones to call their relatives in China to express their feelings of missing him.
In this dark Antarctic ice sheet, loneliness is a problem that everyone must face, and the emergence of terahertz communication makes them excited. Finally, they no longer need to endure the expensive and deceptive network.
However, terahertz communication is not available 24 hours a day. There is only one set of Xingtong satellites passing through Antarctica, so Zhongshan Station cannot receive signals during three time periods every day, and there is about 9 hours of window period.
Even so, Zhang Chengcai and other scientific expedition team members are very satisfied. A network of this quality was not even a thought before.
September 12th.
Antarctica was still dark. Under the aurora, Yang Sen led three team members and drove the sleigh toward the south.
The destination of their trip is Taishan Station, which is located on the southern side of Princess Elizabeth Land at a higher latitude, in the interior of Antarctica.
Taishan Station is not their final destination yet. The final destination is Kunlun Station, which is the Antarctic scientific research station with the second highest latitude after Amundsen Scott Station in the United States.
Yang Sen, who braved the snowstorm, found that his terahertz mobile phone could receive signals, and the signal was very strong.
Everyone has to lament that the motherland's technology is advancing rapidly, and even in desperate natural situations like Antarctica, it can provide network services.
Not only are they lamenting, many Chinese ocean-going cargo ships undergoing testing, or personnel working in Heizhou, feel the power of terahertz communications.
If the satellite density is higher, it can even cover the whole world and achieve global instant communication.
Through the Xingtong communication satellite in space 915 kilometers away, the thoughts of the distant travelers are turned into radio waves; and the concerns of the hometown are brought to the travelers.
Invisible radio waves closely connect us to each other.