The satellite communication of Huawei Mate50 and Apple iPhone 14 just looks beautiful?

In the second half of last year, Huawei and Apple launched smart phones that support satellite messages. Two days ago, I just wrote an article about the US-made RS-804 spy radio equipment, which is a radio equipment that supports satellite communications more than 40 years ago. In the process of searching for information, there will always be articles on Mate50 or iPhone14 phones that support satellite messages. So I simply wrote a comparison between the two companies' satellite phones. The reference materials and pictures are all from the internet, and can be identified by personal cognition. If there is any mistake, please criticize and correct it.

In fact, Huawei's mobile phone models that support Beidou satellite messages include Mate50, Mate 50 Pro and Mate Xs2. In this paper, Mate50 is used to represent these Huawei mobile phones that support Beidou satellite messages.

Mate 50 and iPhone 14

1. Environmental conditions for use. When using the satellite message function, it is necessary to make the satellite and mobile phone "face to face" directly in an open place, as is the case with Mate50 and iPhone 14. In the earthquake disaster, the survivors trapped underground cannot use satellite messages.

Service conditions

2. Conditions for opening the satellite message function. For Huawei Mate50, you need to apply for a free trial satellite message function first. You can use it only after the application is successful. Don't wait until you are really in danger. Moreover, unlike the previous Huawei Mate40 and other mobile phones pre-installed with the Changlian APP, the Mate50 needs to download the Changlian app before sending satellite messages. The receiver will display the received satellite message in the application if there is a link application, and the receiver will display the SMS message if there is no link application. For iPhone 14, the satellite message function is enabled by default.

Huawei application process

3. Service provider. The service provider of Mate50 is Beidou navigation system, or Beidou No.3 system. Among the more than 50 satellites of the Beidou navigation system, there are no LEO satellites in low earth orbit (such as the satellite chain of the United States). The Beidou satellite adopts three kinds of orbits: geostationary orbit GEO, inclined geostationary orbit (IGSO) and medium-circular earth orbit MEO. The altitude of all satellites is more than 20000 kilometers above the ground. In contrast, the satellite service provider used by Apple is Globalstar, an American satellite communications company. The company has about 48 satellites+8 standby satellites, and the orbital height of these satellites is about 1420 kilometers, all of which belong to low-orbit satellites. Compared with Globalstar's LEO satellite, Beidou satellite has no advantages in communication function due to its longer distance.

Regional short message communication application of Beidou No.3 system

4. Specific function realization. Mate50 can only send satellite messages and receive the receipt of the sending results, while iPhone14 can send and receive satellite messages. The Beidou satellite message sent by Mate50 mobile phone is said to have a maximum of 19 Chinese characters, because the load also contains geographic location coordinate information. Although the Mate50 satellite message has many preset items, the content can be entered by yourself. However, the satellite message of iPhone 14 is limited to the specified emergency content, and it is completely impossible to enter it by yourself.

Content comparison

5. Region of use. The satellite message function of Mate50 is only available in China. The satellite messaging function of iPhone 14 is only available in the United States and Canada at first, and will probably be extended to more countries later. However, it is said that northern Canada and Alaska are also not easy to use.

6. Operation duration. In terms of star-seeking process and sending waiting time, there are huge differences in different articles on the network due to the huge differences in users' location and environment. However, as a result, the whole process takes a long time, usually taking a few minutes.

Star-finding

In general, using satellite messages on mobile phones is a major breakthrough in smart phone functions. As pioneers of satellite communication function, the performance of Mate50 and iPhone 14 are not satisfactory. But with the development of time, we have reason to believe that smart phones will soon be able to achieve the experience similar to satellite phones, and will achieve new and more brilliant success in the field of satellite communications# Headline Creation Challenge#

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