Access, Terminals, Transmission and Multiplexing (ATTM); System characteristics of receiver equipment installed in headends of integrated broadband cable and television networks intended to receive broadcast signals in the frequency range 470 MHz to 790 MHz
接入、终端、传输和多路复用(ATTM);安装在综合宽带电缆和电视网络前端的接收设备的系统特性 用于接收470 MHz至790 MHz频率范围内的广播信号