What is an adjacent-frequency modulator?-Dongguan Ao Rui Electronic Technology Co., Ltd.


    Contact Us   
    Your Position: Home > Questions

    What is an adjacent-frequency modulator?

          2018/4/18      view:
    The adjacent frequency modulator (also referred to as a radio frequency modulator, frequency modulation modulator or television modulator) is one of the main equipments in the front-end cable television room. Its function is to provide the video signal (VIDEO) and audio signal (AUDIO) modulation provided by the signal source (can be a digital TV set-top box, satellite digital television receiver, DVD player, computer, video camera, TV demodulator, etc. AV signal source). A stable high-frequency RF oscillation signal. The video is AM modulation, and the audio is FM modulation. According to the different color television systems in the world, the adjacent frequency modulators also have PAL system modulators, NTSC modulators, and SECAM modulators. In China, the PAL-D system is used.

    天津福彩网 北京福彩网 重庆快乐十分 天津福彩快乐十分 吉林福彩网 上海福彩网 天津福彩网 重庆快乐十分 北京福彩网 天津福彩网