Electronic Tuner Introduction

- Nov 11, 2019-

Electronic tuner introduction

The electronic tuner is mainly composed of an input loop, a high-level loop, a mixing, and a local oscillator loop. The working process is as follows: after the input end switches the full television signals from different channels, selects the desired signal, sends it to the high-level loop for amplification, and then mixes the mixing unit with the local oscillator signal from the local oscillator loop. Thus, a fixed full TV intermediate frequency signal is sent to a television or other video conversion device for signal processing.