Rules for the Technical Engineering of Cable Radio and Television Systems Article 19
Television modulator of the head-end analog television channel, response difference in relation to the video carrier frequency +0.2 MHz should conform to the following stipulations of each item:1. In between video carrier frequency minus 0.5 MHz to video carrier frequency plus 3.58 MHz shall be within ±1.5 dB2. In video carrier frequency minus 0.75 MHz and video carrier frequency plus 4 MHz should be within +1 dB to –4 dB3. Video carrier frequency minus 1.5 MHz shall be lower than 20 dB or above.
中文原文 有線廣播電視系統工程技術管理辦法第19條
頭端類比電視頻道之電視調變器，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、影像載波頻率減0.75MHz及影像載波頻率加4MHz處應在正1dB至負4dB之間。
三、影像載波頻率減1.5MHz處應低於20dB以上。
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、影像載波頻率減0.75MHz及影像載波頻率加4MHz處應在正1dB至負4dB之間。
三、影像載波頻率減1.5MHz處應低於20dB以上。