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共用天线电视(CATV)系统常用的仪表以dBmV(分贝毫伏)为单位指示信号电平的测量值。广播和电视发送设备使用的仪表以微伏/米为单位测量场强。
A commonly used meter for the Common Antenna Television (CATV) system indicates the signal level measurement in dBmV (decibel millivolts). The instrument used for broadcast and television transmission equipment measures the field strength in microvolts / meter.