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Chapter 596 Ultra-Long Distance Communication

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    In the research room of Dayang Group, many teenage faces are busy in earnest.  These people are all elites jointly cultivated by Beidou University and Dayang Group in recent years.

    Three special-purpose telegraph machines are ticking; these three telegraph machines are more complex and larger, and many of their parts can be replaced.

    Zhang Hao just gave some "guesses", and these elites can demonstrate and test them.

    The person in charge of telegraph research is Ge Dong's disciple: Tang Tiandong.  This is a boy who is currently only 16 years old, but he has already held up the sky of the communication system.

    There are two types of tests being conducted at this time.  One is: research on ultra-high power, long wave and ultra-long wave communications; the other is research on short waves.

    Long wave communication, because of its long wavelength, weak attenuation and strong penetrability, can propagate very far.  The only problem is that because the earth is curved, communication will be affected if the distance is too far - in fact, this is also a strong proof of the current round earth theory.

    There is another one that Zhang Hao recently pointed out: shortwave can also carry out long-distance communication, but in a completely different way, relying on electromagnetic layer reflection!

    In fact, under normal circumstances, Zhang Hao should not point this out before discovering the geomagnetic field, solar radiation, ionosphere, etc.; but isn't the current situation special?  It's a bit of a stretch, but it shouldn't hurt to do it once in a while.

    The test has been carried out for three days. The long-wave communication is fine. As long as it has high power and long wave, it is not necessary to add an ultra-high signal transmission tower. The current signal transmission tower is already up to one thousand meters high. All countries are building such signal towers.  , some are even built directly on the mountains.

    For example, the tallest signal tower of Dayang Group is at least more than 8,000 meters above sea level. It was built on Yuyang Mountain, which was once the main peak of Jiuyang Sect.

    The tallest signal tower in the Kingdom of Qixia was built by the state in 'Jingshan'. Under the Queen's order, a full 400,000 tons of black steel and part of the steel were used as the skeleton, and hundreds of Transformation God Stage (Golden Body)  Realm), plus the height of Jingshan Mountain itself, the signal tower is tens of thousands of meters high.

    The world of cultivation has created too many miracles by using powerful cultivators.  Nowadays, signal towers with a height of more than 10,000 meters cannot be said to be common, but there are also quite a few.  Major countries with overseas fleets, such as the Kingdom of Shaoze, the Kingdom of Canglan, and the Red Lotus Sect, or holy lands, all have this crazy building.

    But electromagnetic layer reflection is troublesome. Zhang Hao only remembers that there is such a thing, and it is shortwave. As for the shortwave frequency, emission angle, etc., he doesn¡¯t know.  At that time, I only remembered some general information from watching some popular science programs.

    In contrast, long-wave communication is a simple and crude example, while electromagnetic layer reflection technology is a high technology in telegraph technology.

    At this time, Dayang Group did not have much theoretical guidance for the experiment, and was completely researching it.  For research under this situation, Dayang Group can only 'summarize technology from experience' instead of directly deriving technology from theory.

    So this time we can only continue to experiment, collect data, and finally make a final decision.

    The technology obtained through such research is very fragile, because in the future, the technology can only be adjusted based on a small amount of data.  On the contrary, if the technology obtained from theory can be adjusted at will and reach its peak.

    But there is no better choice for the time being.  And the occasional experiment like this is actually very helpful to Dayang Group's scientific research.

    Signals are constantly being sent out, and the messages sent out at different angles and wavelengths are different each time. The base station belonging to Dayang Group that receives the signal in the distance will send the received signal back.  The signal of this test is not required to be forwarded. Whoever receives it can send it back.

    Today, Dayang Group¡¯s base stations have reached as far as the southern section of Taotu Island and West Kunlun; both places are 30,000 kilometers away.

    There is also Xuanwu Mountain, which is about 40,000 kilometers away.

    The signal is sent out in waves, and different angles, different wavelengths, and different directions must be tested repeatedly.

    The sound of Didi sounded in the laboratory, and information kept coming back. The recorder needed to record each piece of information and then mark it on the map.

    This was a boring process, but Zhang Hao watched it with relish this time and waited quietly beside him.

    Until the evening, I got a rough data: using ultra-long wave communication, it can reach a distance of 20,000 kilometers. Problems will begin to occur any further away. Sometimes, even if the message can be received, the signal will be lost.

    "With short-wave communication of 10 meters to 100 meters, within a suitable angle range and the electromagnetic signal is neither too weak nor too strong, it can be transmitted to all directions.?km away!

    During the experiment just now, we actually received a return signal from the Fairy Mountain far away in the sea!  However, the returned signal is returned after two relays.

    "Can it really happen?" Tang Tiandong looked at the data in shock.

    He has been working on ultra-long wave communications before; however, there are bottlenecks in long wave and even ultra-long wave communications.  The voltage continues to increase and the signal towers continue to rise, but it becomes increasingly difficult to increase the effective distance of the signal.  Signal loss in long-distance communications cannot be ignored. A piece of information must be sent several times, or even a dozen times, before it can be conveyed.

    Zhang Hao looked at Tang Tiandong's surprised expression and smiled, "Tiandong, we will study the technology later. In a few days, I will personally explore the second level of the Immortal Mountain. There are still five days. Look at the five days.  Could a new telegraph system be built?¡±

    "Good teacher." Tang Tiandong called Zhang Hao his teacher, because Zhang Hao had indeed personally taught him and many students from Beidou Academy.

    In this world, there is the idea of ??"once a teacher, always a father". Of course, Zhang Hao must make good use of this fine tradition.

    The next day, Zhang Hao was dealing with something, but someone came to report that Zhou Jue and Liu Qingqing were visiting.

    Zhang Hao was immediately shocked. Why did this new couple come here?

    "Come and get the drawings!" When we met, Liu Qingqing was generous and direct, asking for the drawings.  "Mr. Zhang, the day before we got married, you promised to give Honglou a complete set of battleship technical information. It has been more than half a month. Where is the information?"

    Zhang Hao smiled: "What do you think it's about? It's just for this matter. Half of the information has been prepared. Since my sister-in-law is here, let her take away the half that she has prepared."

    "Okay." Liu Qingqing didn't know how to be polite.  I turned around and hooked up with Zhou Jue. For what reason, wasn¡¯t it because of the connections behind Zhou Jue: Xinglin Tang, Dayang Group, etc.

    Zhang Hao asked Zhou Jue and Liu Qingqing to sit down, picked up the phone on the table and made a call.  Then Zhang Hao said to Zhou Jue and Liu Qingqing: "Uncle, sister-in-law, wait a moment. The information is at the shipyard, that is, at the seaside. It will take at least two hours to deliver it here."

    You can do a lot in two hours.  For example, Liu Qingqing took the opportunity to ask about the management status of Zhang Hao Commercial Group.

    Zhang Hao now has time, so he is not in a hurry and talks to Liu Qingqing in more detail.  Of course, it's all in the general direction, and I won't talk about the specifics, especially those involving the operation of Dayang Group.  Moreover, Red Mansion is different from Dayang Group. Some experiences in Red Mansion are not only useless, but may actually be harmful.

    But even so, Liu Qingqing listened carefully, and in the end even took a pen and paper from Zhang Hao's desk to record it.

    Zhou Jue also listened with great interest.  Now Zhou Jue is no longer involved in the situation of Dayang Group or Xinglintang. He is now his own household minister.

    Now the Ministry of Household Affairs has been changed to the Ministry of Finance, which is also responsible for taxation, etc. The original functions of population statistics have been assigned to the new department.

    Hearing Zhang Hao talk about the business situation is indeed crucial to Zhou Jue.  Today¡¯s capitalism still has many threads that are elusive.

    Capitalism broke out too suddenly and developed too rapidly. All kinds of new things sprung up like mushrooms after a rain. In addition, capitalism also triggered changes in the country and the times, and it was all complicated.

    After talking about it for about two and a half hours, the information was delivered.  The secretary called first to make sure it was convenient for Zhang Hao, and then someone 'brought in' the documents.

    ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

    ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

    ?There are 8 wooden boxes of almost 1.2 meters each on the ground!

    Liu Qingqing was stunned, "Thisis the blueprint of a battleship? Didn't you bring all the information about the battleships in the port?"

    "To be precise, it is a technical drawing, including design, etc. And this is indeed the information of a battleship, but it is only 60%. The remaining 40% is still being sorted. Sister-in-law can open it and take a look."

    Liu Qingqing: (remember this website address: www.hlnovel.com
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