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一种称为FML的调频线路能将电缆电视扩展到遥远地区,它能克服用普通电缆系统所带来的限止。该系统为一能控制几百英里距离外达20路视频频道的微波中继站。由于使用了调频线路系统使操作人
A frequency-modulated line called FML that extends cable television to remote locations overcomes the limitations of conventional cable systems. The system is a microwave repeater capable of controlling up to 20 video channels out of the reach of hundreds of miles. Due to the use of the FM line system operator