Three RF Tuning CTV Receiver with PIP and Built-in BS Receiver

Abstract

内置bS接收画中画的三高频调谐彩色电视机研制李元密，陈皓光，张毅（厦门大学电子工程系）（厦门达真磁记录有限公司）卫星电视广播是解决幅员辽阔和地形复杂所造成的电视复盖率低、节目源少的最好途径。随着“东方红号”和“亚洲一号”广播卫星的发射，必将导致卫星电...The composition, speciFications and Features of the large screen CTV re-ceiver with dual tuners,BS reception and RF-PIP are presented in detail.By the use of a sin-gle chip 4-Bit microcomputer as controller.F.S digital tuning/remote control of dual tunersTV reception and RF-PIP can be realized.At the same time,by means of the audio subcarrierSYNC tuning technique of BS,V.S digital tuning and remote control can be realized with re-spect to BS reception