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(上接第 0 2期 )3 射频处理邻频技术多路电视发射的电路分析与实现射频处理邻频技术实际上就是将电视信号经ＬＣ滤波器或是螺旋滤波器将其带外部分滤除 ,使本频道对上下相邻频道图像载波、伴音载频抑制 - 6 0ｄＢ以下。3.1 邻频滤波器的重要性3.1.1 多路电视发射信号的需要
(Continued on the 02nd period) 3 radio frequency processing adjacent channel technology Multi-channel television transmission circuit analysis and implementation of radio frequency processing adjacent frequency technology is actually the TV signal by the LC filter or spiral filter its out-of-band filter , So that the channel adjacent to the upper and lower channel image carrier, audio carrier frequency suppression - 6 0dB or less. 3.1 The importance of adjacent filters 3.1.1 multi-channel television signal transmission needs