High-frequency head

High-frequency head, commonly known as the tuner and high frequency is used to receive TV signals and bring up a device of video information, also is the first part of the public channel. TV currently USES high-frequency head generally divided into high frequency digital signal (digital high-frequency head) and analog signals of high-frequency head (hereinafter referred to as analog high-frequency head). Simple is to receive TV signals tuning and high frequency signal amplifier.