Private network frequency-selecting networking chain building method based on short wave channel

The invention is applicable to the technical field of short wave communication networks, and provides a private network frequency-selecting networking chain building method based on a short wave channel. The method comprises the following steps: a stable and reliable time synchronization system is built and a standard synchronous clock is provided via satellite timing equipment; all users in a subnet shares a common frequency set, and after start-up, the users synchronously scan the frequency set under the control of the synchronous clock; when in communication, a source user computes next time slot resident frequency of a target user, and initiates a call on the frequency; and after communication business between the source user and the target user is completed by building a chain therebetween, the frequency is released for the other users. According to the method provided by the invention, depending on the time synchronization system formed by Beidou or GPS, the source user computes the next time slot resid