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由机电部第三研究所研制的双高频头画中画模拟彩色电视机在海南省三亚市电视机厂试生产成功,於1992年9月28日通过海南省组织的专家鉴定,并投入批量生产。鉴定的高频画中画电视机包括21英寸、22英寸、25英寸、28英寸及29英寸五种规格。该高频画中画电视机具有两个高频头,可分别调谐到两个频道,同时收看两套电视节目。小画面可在主画面四角移动,可放大缩小,也可活动或冻结静止。小画面的伴音通过耳机收听,使大小画面的声音互不影响。主机及画中
The second high-frequency picture-in-picture (PIP) analog color television developed by the Third Institute of the Ministry of Electrical and Mechanical Services was successfully put into trial production in the TV factory of Sanya City, Hainan Province. It passed the expert appraisal organized by Hainan Province on September 28, 1992 and put into batch produce. The identified high-definition picture-in-picture TV set includes 21, 22, 25, 28 and 29 inches. The high-definition picture-in-picture TV has two tuner heads that can be tuned separately to two channels while watching two sets of television programs. Small screen can move in the four corners of the main screen, zoom in and out, or freeze or freeze still. Small picture of the sound through the headphones to listen, so that the size of the picture sound does not affect each other. Host and painting