a brief descr iption on VSAT technology and its working

CMD 关于卫星通信中的调制解调设备的产品技术说明书。-CMD is a paper about VSAT.

DVB-S2X is an extension of the DVB-S2 specification that provides additional technologies and features. DVB-S2X has been published as ETSI EN 302 307 part 2, with DVB-S2 being part 1. S2X offers improved performance and features for the core applicat