It is precisely in this way that Huaxing Group was able to pull the price of satellite ground terminals to a very low level all of a sudden.

When the members of these European delegations saw the prototype of the touch-screen satellite mobile phone developed by the China Satellite Communications Corporation, their eyes widened.

This mobile phone is larger and thicker than the Siemens R3 mobile phone, and a foldable satellite dish is attached to the back of the phone, which is very beautifully made.

This is a satellite communication mobile phone jointly developed by China Satellite Communications Corporation and Huaxing Communication Equipment Company, targeting forestry inspection, fire protection, mining exploration, civil disaster relief, marine fishery, outdoor tourism, power inspection, transportation and other industry sectors.

The biggest feature of this satellite mobile phone is that it supports more than 10 trillion data transmission, which is very powerful, and the data collected on the spot can be sent back to the enterprise in the first time.

At this stage, only Huaxing Group can do it to such an extent.

When the delegation came to the laser communication R&D department of China Satellite Communications Corporation, the R&D department also displayed the components of the beacon optical emission system and the space beacon optical position detection system.

Three years ago, Huaxing Group used gallium nitride materials to prepare the world's first gallium nitride substrate light-emitting diode, and on this basis, Huaxing Group developed a gallium nitride diode chip.

Because the brightness of the GaN diode is ten times brighter than that of the diode prepared by gallium arsenide, and the energy consumption is lower, Huaxing Group has developed an edge-emitting laser on this basis, which is mainly used in optical fiber communication.

However, because it is very difficult to prepare gallium nitride light-emitting diodes into vertical cavity surface emitting lasers, mainly because the structure of gallium nitride light-emitting diodes is very special, and the lasing conditions are very harsh, in addition, it is necessary to ensure that its emission wavelength falls within the high reflection band, and ensure that the resonant wavelength of the resonator is aligned with the gain peak in the active region in order to be lase.

However, the members of the European delegation were also quite shocked when they saw this side-emitting laser, and the laser light source in the beacon light emission system carried by the laser communication satellite developed by Europe is 19 heterogeneous gallium arsenide aluminum laser light sources, while Huaxing Group is a gallium nitride laser diode, and the technical routes between the two are different.

What surprised these people even more was that the technical route of the space beacon light position detection system components of Huaxing Group Company was not the same as theirs-

Instead of using a charge-binding device image sensor to capture the detection light signal, the technical department of China Satellite Communications Corporation uses a PsD position sensor.

Although the principle of using a PsD photosensitive position sensor is the same as that of an image sensor with a charge coupling device, the cost of the latter is much higher.

In fact, there is another reason that Huaxing Group is not strong enough in the image sensor of charge coupling devices, and the overall technical foundation in China in this regard is not enough, so the company has to find another way.

Now Huaxing Group is developing the main key technology of precision optical aiming capture and tracking of laser communication terminals, and this composite axis tracking and sighting system comes from the previous accumulation of technology in the photoelectric pod, but it is still being tested and verified, so it has not been taken out to show.

Although Eagle Sauce and Europe started very early in laser communication technology, some technical experimental satellites have been launched into space for various technical verifications in the first ten years.

However, the rabbit domestic research and development in the laser is also not weak, from the sixties and seventies began to track the research and development, to the national research laser research institute is very large and small, the overall technical strength will not be backward than foreign countries, and in the laser optical crystal in the forefront of the world, but before the industrialization of the commercial field is relatively poor, failed to integrate.

In addition, the rabbit did not have the money to engage in the satellite laser communication plan before, because this thing is too expensive, this system engineering is not developed out of the laser communication satellite, the laser communication satellite itself is expensive, and the ground will build a large-scale laser launch system after launching into the air, and because the tracking and observation system between the satellite and the ground station is very difficult to dock, it is easy to cause the satellite to be scrapped because of the inaccuracy, and the failure rate is too high.

Rabbit's domestic scientists in the aerospace field have always been accustomed to careful calculations, and it is impossible for countries like Europe, Eagle Sauce and Neon Country to have deep pockets, basically pre-research on these technologies and make technical reserves.

Huaxing Group Co., Ltd. started by relying on semiconductor and communication technology, and will naturally not be absent in the field of laser communication, and is even better at laser communication coding technology.

Yang Jie is well aware that laser communication technology has the characteristics of large communication capacity, strong confidentiality, light structure, and economical equipment, and he especially likes the advantages of using laser communication technology to make the transmitting antenna and the receiving antenna very small, generally the diameter of such an antenna can be dozens of centimeters, and the weight is only a few kilograms, which is too important for the satellite payload.

If the microwave antenna is used, the area should be very large and the weight is also very heavy, but it doesn't matter on the ground, it will be very enough to choke on the satellite at the beginning.

Therefore, he is going to engage in satellite laser communication technology no matter what.

It was also the super R&D strength of Huaxing Group in the design, manufacturing and production of satellites that impressed the European delegation, and then signed a series of cooperation contracts with China Satellite Communications Company in Yanjing.

The contract includes the technical equipment of China Satellite Communications Co., Ltd. to build Starlink network ground gateways to France and Germany, and also procures a number of key components and technical authorization from China Satellite Communications Co., Ltd.

After the contract was signed, a delegation led by European Space Agency experts then negotiated the Beidou frequency on behalf of the EU's Galileo Satellite Navigation Satellite System and the Rabbit Space Agency.

China Satellite Communications Corporation is mainly responsible for the design, development and manufacturing of low-orbit satellites, as well as the operation of the Starlink network and several high-orbit communication satellites.

Naturally, the delegation from the European Aerospace Agency will not talk about this matter with Huaxing.

This year, the Aerospace Science and Technology Corporation has launched two Beidou-2 satellites in succession, and has notified the International Telecommunication Union of the satellite launch frequency that it intends to use, which is exactly the frequency that the European "Galileo" system is preparing to use for "public management services."

Channels are rare resources, and Eagle Sauce and Big Fur, which have the first opportunity, have the best usage frequencies respectively, and the frequencies that rabbits value are considered to be the "second-best" frequencies of Eagle Sauce and Big Hair.

In accordance with the principle of international law of "first-use, first-served", Rabbit and the EU have become competitors for this frequency.

Now that the rabbit has officially launched the frequency before Europe, and the EU has not even launched the three experimental satellites scheduled for it, it is no wonder that the European Space Agency cannot sit still.