Common applications in the 1250MHz frequency band

　　1. Satellite communication: In the 1250MHz frequency band, it is mainly used for communication between satellites and ground stations.

　　Satellite communication can achieve wide area coverage and has the advantages of long signal transmission distance and strong anti-interference ability. Therefore, it is widely used in fields such as television broadcasting, mobile communication, and satellite broadcasting.

　　2. Navigation system: In the 1250MHz frequency band, it is mainly used for the L2 frequency band of the Global Navigation Satellite System (GNSS).

　　GNSS is a navigation system based on satellite positioning, which transmits signals through satellites,

　　It can achieve precise positioning and tracking of ground targets.

　　GNSS is widely used in transportation, aerospace, ship navigation, geological exploration and other fields.

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