“基频带”常见的英文表达是 “baseband” ,既可以作名词,也可作形容词。例如:
名词用法:The baseband signal contains the original information. (基频带信号包含原始信息。)
形容词用法:A baseband channel is used for transmitting unmodulated digital data.(基频带信道用于传输未调制的数字数据 。)