What are Beidou short messages?

Beidou short message is an important function of Beidou first generation, which can realize two-way communication. This is a function unique to Beidou and not available in GPS. Beidou short messages are just like the short messages people usually send, except that the text messages usually sent by mobile phones use phone cards and mobile communication signals, while Beidou short messages use Beidou satellite signals and Beidou short messages in mobile phones. module. Wright Technology in Changzhou has a Beidou short message module, and there are also some short message mobile phones equipped with the Beidou short message module, which can realize the Beidou two-way communication function.