【摘要】 目前有线电视技术人员对有线电视放大器的模糊认识主要有:放大器的增益可以调节;放大器的非线性失真只与输出电平有关,与输入电平无关;放大器也能放大模糊的电视信号;放大器倾斜输出能改善有线电视系统的CTB指标。对此,经过分析加以澄清,帮助从业人员正确做好放大器的调试、选用与更换工作,确保有线电视网络质量。更多还原

【Abstract】 Nowadays,CATV technicians have some blur cognition about CATV amplifier,mainly that the amplifier gain can be modulated,or the nonlinear distortion of amplifier has something to do with the output level instead of input level,or amplifier can magnify the faint television signal,or the amplifier inclined output can improve the CTB index of CATV system.The article clarifies these blur cognition through analysis and help the workers modulate,choose and exchange amplifiers,then ensure the quality of CATV.更多还原