Rules for the Technical Engineering of Cable Radio and Television Systems Article 20
The television signal processor of the head-end analog television channel, frequency response difference in relation to the video carrier frequency plus 0.2 MHz shall conform to the following stipulations:1. In between video carrier frequency minus 0.5 MHz to video carrier frequency plus 3.58 MHz shall be within ±1.5 dB.2. Video carrier frequency plus 4 MHz shall be between +1 and –2 dB.
中文原文 有線廣播電視系統工程技術管理辦法第20條
頭端類比電視頻道之電視變頻處理器，相對於影像載波頻率加0.2MHz處之頻率響應差值應符合下列各款之規定：
一、影像載波頻率減0.5MHz至影像載波頻率加3.58MHz區間內應在正負1.5dB以內。
二、影像載波頻率加4MHz處應在正1dB與負2dB之間。
一、影像載波頻率減0.5MHz至影像載波頻率加3.58MHz區間內應在正負1.5dB以內。
二、影像載波頻率加4MHz處應在正1dB與負2dB之間。