Communication satellite price

Hello, this question is very good. I simply answer your question as follows:

1, covering the whole world, requires at least 3 synchronous satellites. Because the earth is a garden, it is impossible to cover the whole world with a satellite; Nowadays, satellite mobile communication systems use constellations to cover the whole world. Because three synchronous satellites can't cover the north and south poles;

2. The average cost of communication satellites is $300 million (including design, production, launch, operation and monitoring, etc.). );

3. At present, satellite positioning and satellite communication adopt different systems and use different satellites; For example, the global positioning satellite system includes GPS of the United States, Galileo of the European Union, GLONASS of Russia, Beidou of China, etc. They all cover the whole world with constellations of low and medium orbit satellites (half of them need dozens of satellites). There are two main types of satellite communication. They are satellite mobile communication systems for direct users, such as Inmarsat, Iridium Satellite System, Global Satellite System and Thoraya System. They mainly use low and medium orbit constellations to cover the whole world (Sulaja uses synchronous orbit satellites, but only regional coverage); The other is for telecom operators, groups and enterprise users. Generally, geostationary satellites are used, which are characterized by large communication capacity and wide coverage;

4. At present, the bandwidth of the satellite is related to the frequency band it uses. Generally speaking, the capacity (bandwidth) of Ku-band satellites is about 1GHz. The capacity of Ka-band satellites can reach 100Gbps.

Conclusion: Your question is a comprehensive problem of a series of questions, and I am here to offer you some advice.