In China, built a Grand antenna, which is the size of an area equal to Moscow
Such a large antenna
was built to resonate at ultra-low frequencies. It so happened that the antenna
area occupied the territory as Moscow or new York. If you believe scientists from China, such an antenna
they built just to catch signals about the approaching earthquake. The project began to be built in 2006 in the Central part of China. Special laboratories have been set up throughout the rest of the country to ensure that the data from the antenna
can be monitored and processed in time. Radio waves of ultra low frequencies can easily penetrate into the strata of the earth, so if you want a system you can use as a huge sounder for the study of cavities in the Ground. And the network of processing stations across the country is nothing but the usual receivers of the reflected signal. Having sent a signal in a certain range and direction it will be possible to know by the reflected signal what is in the thickness of the earth. There is iron ore or there are a lot of hydrocarbons, or there is something else lurking. China is actively studying the cavities of the underground world.
There is another interesting theory, as this type of radio waves easily penetrate into the ocean, it is possible to modulate these waves useful signal and exchange data between underwater deep-sea vehicles. Apparently a military facility and are studying the possibility of transferring data between submarines of China. Even now, Chinese coast guard sailors have a network of ultra-low-range antenna
s that have long been used to communicate with submarines. The submarine can also be with such an antenna
, but it has a little different, smaller dimensions. The facility was built by the Chinese communications Institute, which is developing new communication systems for both the military and the civilian sector. This Institute has its branches even where the base of the country`s submarine fleet is located, Hainan island also has its own special antenna
for such a rare radio range. On the island of Hainan, the base of the Chinese submarine fleet, there are 84 submarines of different classes, with them you need to keep in touch during the execution of the task, for this and created such a unique type of antenna
s. Here`s a peaceful China has more soldiers under arms and most of all submarines in comparison with the most developed country in the world, USA is not the leader in this kind of competitions.
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