a cipher text smoke bomb
According to the results of querying shortwave-info, double-star Radio is a transmitting station located in Guanyin, Taoyuan, Taiwan. This station will regularly transmit nothing but robot-accented numbers to mainland China at specific times every day. The content is suspected to be to contact the military lurking (spy?) in China. In fact, although this connection is almost impossible to decrypt (without a code table), this method of giving orders now seems to be a stupid and inefficient smoke bomb.