A digital distributed antenna system that regains the capability to perform simulcast to multiple simulcast groups while using a base station’s direct digital output is provided. The top cover has a pressing plate extending into an interior of the top seat and a pair of pressers each extending to engage with and abut the paper-pressing bar. When the jam is fixed according to the operations of the contents, the screen is switched to a reread standby screen. The mutual authentication handshake of embodiments implements a protocol in which a session key is calculated by both nodes, thereby providing a secure means by which a cluster key may be shared. The carrier substrate further includes a first carrier connection pad and a second carrier connection pad that interconnect with the first object using metal connectors. plant that produces apples having a pleasant aroma and harmonic sugaracid content suitable for use as a dessert fruit.