Chapter 526 Wireless Broadcasting Technology

Speculating in real estate is a professional thing that should be left to professionals. Arthur is still very confident in his subordinates, and even more confident in the capitalists who entered the market after the real estate speculation started.

As long as this head is opened, the real estate in the United States will be like a prairie fire, and it is impossible to extinguish it in a short time.

Even if the real estate fire will be extinguished in the future due to the impact of the economic crisis, it will not have any impact on Arthur's income.

Of course, companies that develop real estate in the United States are destined to change their appearance. At least the controllers and capital cannot come from Australasia, and they must openly break away from any relationship with Australasia.

In February 1920, there were still some good news for Arthur.

First, the construction of the new capital was progressing smoothly. After more than a year of construction, many houses and facilities were built, and the new government council and royal palace were also under construction. It is expected that there will be results within one to two years.

As long as the construction of the royal palace and government council is completed, the political center of Australasia can be moved to the new capital. Sydney will completely end its career as the capital, but it will still be the largest city in Australasia.

In the construction of the new capital, there is a project that Arthur approved and strongly supported, that is, the construction of the National Zoo of Australasia.

The history of zoos is very long. Australasia currently has zoos of all sizes, and there are many large ones.

But the newly built National Zoo is absolutely rare in scale, and it has to accommodate animal systems from all over the world, and the cost alone is as high as tens of millions of Australian dollars.

As one of the future tourist cards of Australasia, when building the National Zoo, Arthur specifically instructed that a large number of rare animals at home and abroad must be collected, and different parks must be divided for these animals from all over the world.

Of course, these tens of millions of Australian dollars are definitely not spent in vain. Arthur's expectation for the National Zoo is to become one of the future tourist cards of Australasia, greatly improve the tourism popularity of Australasia, and attract more foreign tourists to Australasia.

At the same time, it can also enrich the entertainment life of Australasia people. People have more entertainment options besides busy work and ordinary life, and improve people's life happiness index by the way.

Under various factors, the cost of 10 million Australian dollars seems insignificant, at least it is worth it.

In addition to the zoo, there are also a large number of botanical gardens, parks and green areas.

When designing Fort St. Arthur, the internalization of the city and environmental protection were fully considered. Arthur's goal is to create the most livable city in the world, and of course it is also the future tourist card of Australasia.

In addition to the progress of the construction of the new capital, Arthur also ushered in a good news, that is, the breakthrough progress of some research of the Royal Academy of Sciences.

The first is the research on wireless broadcasting technology.

The origin of wireless broadcasting can be traced back to the British scientist J.C. Maxwell in 1873, who proved the existence of radio waves.

In 1888, German scientist H.R. Hertz generated and received radio waves through spark discharge experiments, which promoted the research on radio waves in various countries around the world.

As early as the beginning of the 20th century, voice broadcasting of voice and music was already possible.

But at that time, broadcasting had great limitations. Due to the power of the transmitter, the coverage of the broadcasting tower was basically within ten kilometers, and even the coverage of the low-power broadcasting tower could only be maintained at 1 to 2 kilometers.

In addition, the anti-interference ability was extremely poor. The broadcasting was just a noise at a long distance, and it was impossible to achieve large-scale commercial use. It was even more impossible to cover the whole country.

But Arthur understood the importance of broadcasting technology. Wireless transmission across the country would greatly improve the communication efficiency between regions.

However, there are many problems that need to be solved for broadcasting. First of all, the coverage of the broadcasting tower must be increased to at least ten kilometers to cover the entire city more comprehensively.

Secondly, the anti-interference ability of broadcasting is also a very important link. In addition to human influence, the impact of weather on broadcasting is also very serious. This is also a problem that must be solved if broadcasting wants to be put into commercialization and formal use.

Looking at the research report on wireless broadcasting in his hand, Arthur nodded with satisfaction and asked curiously: "Has the problem of broadcasting propagation been solved?"

The person reporting on the other side was Martin Scorsese, an expert in wireless broadcasting. After hearing Arthur's question, Martin quickly replied: "It has been initially solved, Your Majesty. We have increased the transmitter power of the broadcast tower and used relay stations to strengthen the signal in the broadcast transmission.

According to our test, as long as there is a relay station for the signal in the middle, the decaying signal frequency can be amplified again, even to the frequency when it was just transmitted.

According to our estimate, under good weather conditions, if relay stations are laid all the way, the frequency sent from Sydney can be received in Perth after 10 to 20 minutes, thus achieving national coverage of broadcasting."

Perth is the capital of Western Australia, and is separated from Sydney in the eastern part of Australia by an entire Australia.

If the signal transmission between Perth and Sydney can be achieved, it means that the whole of Australia is within the coverage range.

As for the overseas territories and New Zealand, which are areas that the current wireless broadcasting technology cannot cover, Arthur also fully understands.

To be honest, Arthur is already quite satisfied with the coverage of wireless broadcasting in Australia.

After all, technology develops slowly, and no one can eat a big fat man in one bite. It takes a certain amount of time to promote the progress of technology.

"What about the anti-interference problem of the signal? What is the current anti-interference ability?" Arthur continued to ask.

Only after the two problems of coverage and anti-interference are solved, the technology of wireless broadcasting can be officially put into use.

Therefore, anti-interference ability is also a very important part and an unavoidable problem in the use of broadcasting.

"We have strengthened the signal of the broadcast, and the anti-interference ability has improved compared with the previous broadcast.

But at present, the impact of special weather cannot be solved, and the magnetic field will also affect the transmission signal of the broadcast, which cannot be solved in a short time." Martin explained.

The current technology obviously cannot completely ensure that the radio broadcast signal will not be interfered with. After all, in addition to extreme weather, the magnetic field is also the culprit affecting the broadcast signal.

"But in normal weather conditions, the current wireless broadcast signal can still be guaranteed. In areas close to the relay station and signal base station, the signal will basically not be affected." Martin continued.

Arthur can fully accept what Martin said. After all, it is only the early 20th century, and the technology is completely incomparable with 100 years later.

The ability to use radio technology now is an improvement compared to history, and Arthur will naturally not make more stringent requirements.

As long as it can be used in normal weather, Arthur's needs for wireless broadcast technology in ten years have been met.

Anyway, there is still a lot of time to make improvements. Arthur is confident that he can catch up with the level of future generations in advance. Even if he has to work hard for decades, Australasia can wait.

"What is the construction cost of radio stations and relay stations? If they are to be fully laid in Australia, can the government bear the burden?" Arthur continued to ask the questions he wanted to ask.

The popularization of radio also needs to consider one issue, that is, the cost of building radio base stations.

If the cost is too high, it will be a hassle to popularize it nationwide, and it will also hinder the use of radio.

"Currently, the construction cost of a broadcast base station is about 6,000 Australian dollars, and the construction cost of a transfer station is about 4,000 Australian dollars. Of course, this also depends on the geographical environment of the corresponding area, as well as the material and labor costs required to build the base station." Martin replied.

"What about the coverage of the broadcast base station and the transfer station?" Arthur asked.

"In the vast plains, the coverage of the broadcast base station can be expanded to about 20 kilometers, and even up to 25 kilometers. But if it is in the mountainous area, the transmission range will be affected to a certain extent. The specific value is not stable, but it is preliminarily estimated to be guaranteed to be around 10 kilometers." Martin continued to hand over a document and answered very respectfully:

"The coverage of the transfer station in the plains can be stabilized at more than 15 kilometers, and the mountains will also be affected, and it can probably be stabilized at about 10 kilometers."

Arthur nodded.

At present, Arthur is still satisfied with the signal coverage of the base station and the transfer station.

The diameter of a small city is about a few kilometers to more than ten kilometers. Generally speaking, 1 to 2 base stations can fully cover it.

The number of base stations and transfer stations that need to be built in large cities will be more, but there are not many large cities in Australasia, and the largest ones are only Sydney and Melbourne.

In addition, there are a lot of uninhabited areas and deserts in western Australia. These areas naturally do not need to build base stations and transfer stations. You can't let animals in the desert listen to the radio!

In this way, a considerable amount of cost can be saved. At least in Australia, at least half of the land does not need to build base stations and transfer stations, and the actual cost is completely within the range that the government can afford.

At present, the most needed coverage of radio is actually some cities in the southeast, south and north of Australia.

The deserts and wastelands in the central and western parts are basically uninhabited, and base stations are not needed for the time being.

The construction of radio stations on a large scale is conducive to controlling domestic public opinion, which is still very effective for Arthur to strengthen domestic public opinion control.

In any case, public opinion control is Arthur's bottom line and an important line of defense to ensure national security and stability.

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