Chapter 933 Three-legged Triad
Satellite phones have many advantages.
First, satellite communications can cover all areas on the earth's surface and are not affected by environmental factors such as terrain and landforms. Even in sparsely populated areas such as deserts, plateaus, polar regions, and oceans, basic voice and data communication services can be provided, achieving truly blind-spot-free communication.
Second, satellite communications have a long range. Communications can be achieved between any location within the coverage of electromagnetic waves emitted by satellites, and the communication distance that synchronous communication satellites can achieve is more than 18,000 kilometers.
Furthermore, satellite communications have a large capacity. Its frequency range is between 2 GHz and 40 GHz, and there are tens of thousands of voice communication channels, and the data transmission speed can reach 100 Mbps.
Finally, satellite communications have low losses and stable signal transmission. Because most of the satellite communication links are located in outer space, the ground environment and human factors will basically not affect the communication.
These advantages make satellite phones very important in many aspects.
For example, when a ship is drifting on the sea, there is no communication base station, but with a satellite phone, it can be contacted no matter where in the ocean.
For example, in the wilderness, there are no communication base stations or telephone lines, but satellite phones can be used normally through communication satellites.
Of course, this does not mean that satellite phones have no shortcomings. There is no perfection in this world. There are advantages and disadvantages.
One of the disadvantages of satellite phones is that the service life of satellites is short, because communication satellites are comprehensive high-tech products composed of countless parts. Once any part fails, it will directly cause the failure of the entire satellite, and it is basically impossible to repair it due to the high maintenance cost. The service life of Panshan Group's communication satellites is only 10 to 15 years, which means that it can only be used for 10 to 15 years under normal use. If any failure occurs, the life of the satellite will be greatly reduced.
Furthermore, satellite communications will be interfered by special celestial phenomena. For example, when the satellite is between the earth and the sun and the three are in a straight line, the satellite antenna will be interfered by solar radiation, and the ground station antenna will also receive strong solar noise, causing communication interruption.
The research and development, manufacturing, launch, measurement and control of communication satellites require advanced space technology and electronic technology to support, and are very complicated. The number of countries in the world that have mastered communication satellite technology can be counted on one hand.
Liu Tao watched the news, around 11 o'clock, took a shower and went to bed.
November 23.
In the Indian Ocean, a war is breaking out in Sri Lanka.
The government army and the Tigers are fighting fiercely for territory.
Before 1948, Sri Lanka was a British colony. On February 4, 1948, Sri Lanka officially declared independence and became a dominion of the Commonwealth, and the country was named Ceylon. In 1972, the country's name was changed to the Republic of Sri Lanka. In 1978, the new constitution was enacted, and the country's name was changed to the Democratic Socialist Republic of Sri Lanka.
After Sri Lanka's independence, the Tamils established the Tigers in 1972 and embarked on the road of "independent nation-building".
Sri Lanka is an island country in the Indian Ocean south of the South Asian subcontinent. It faces the subcontinent across the Palk Strait in the northwest. It has a total area of 65,610 square kilometers and a population of 13 million. The entire Sri Lanka is composed of three major ethnic groups: the Sinhalese, the Tamils, and the Moors, and most of the residents believe in Buddhism.
The three ethnic groups have been fighting each other since 1983. The civil war in Sri Lanka has lasted for 12 years and there is no hope of ending it.
The whole of Sri Lanka is divided into three territories, and Sri Lanka is in a three-legged situation.
On the battlefield, the military observation group is wearing bulletproof helmets, bulletproof vests, and telescopes in their hands, observing the battle between the Sri Lankan government forces and the Tigers.
The civil war in Sri Lanka has caused the deaths of more than 300,000 people, more than 5 million people have been displaced, and the country's infrastructure has been severely damaged.
But no one side has the absolute strength to defeat the other two and unify Sri Lanka.
The main equipment of the three parties includes combat tanks, armored transport vehicles, artillery, anti-aircraft missiles and patrol gunboats.
The guns of the soldiers of the three parties are also varied, which can be said to be made in various countries.
Everyone in the military observation group is very careful. In peacetime, through this kind of battlefield observation, you can learn something.
And military observation groups like this will be sent out in batches of about three times a year.
Learning war from war is a fine tradition of history.
While Sri Lanka was once again involved in a war, the Maldives, about 800 kilometers away, was peaceful and peaceful. It has become a world-famous tourist destination.
This year, a large number of people from Panshan Group chose to come to the Maldives for a tour group building.
They will travel here for a week and return to China by plane after a week.
Many employees choose to pay part of the money and bring their families to vacation together.
Chinese signs can be seen everywhere in the Maldives, and the service staff also speak Mandarin.
Since some business groups instigated a coup in the Maldives seven years ago, the Indian Navy, Air Force and Paratroopers wanted to attack the mercenaries, but they were hit hard by the mercenaries in the Maldives and suffered a disastrous defeat. The Republic of Maldives also changed its flag.
The entire Maldives consists of 26 groups of natural atolls and 1,192 coral islands distributed in 90,000 square kilometers of sea area, of which about 200 islands are inhabited, with a land area of 115,300 square kilometers (including territorial waters), a land area of 298 square kilometers, and a population of 557,000, of which the Chinese and overseas Chinese population has reached 400,000, accounting for 71.81% of the total population.
Naturally, the Maldives also withdrew from the Commonwealth. After two years of efforts, it successfully inherited the original status of the Maldives in the United Nations and has sovereignty.
The Maldives army is composed of the army, navy and air force. The army consists of more than 8,000 soldiers, the navy has 1,300 people, and the air force has 3 transport planes, 9 helicopters, 10 J-10 fighters, and 10 J-11 fighters. The army has tanks, armored vehicles, and various types of artillery.
In a military camp in the Maldives, at the command center, information from Sri Lanka kept coming in, and the situation of both sides was constantly analyzed on the screen.
The Maldives is too close to Sri Lanka and the subcontinent, so it has to keep an eye on these two places.
At present, the Maldives' army is mainly defensive, and it has turned the Maldives into an unsinkable aircraft carrier.
The military observation group is at the front, constantly sending back the current intelligence of Sri Lanka, and the army conducts research, analysis, and judgment.
Sri Lanka is now a mess, and mercenaries are not interested, because they can't change the situation at all. When the war is over, the whole Sri Lanka will be in ruins.
It's not that there are no countries that intend to mediate the three parties in Sri Lanka, but unfortunately they all ended in failure.
In fact, the Maldives is also under great pressure and needs to prevent the influx of Sri Lankan refugees into the Maldives, which forces the navy to be on high alert.
For the Maldives, Sri Lankan refugees should enter the subcontinent instead of joining in the fun in the Maldives.
