Automatic radio frequency signal switching circuit

摘要: An automatic radio frequency signal switching circuit is equipped with a plurality of AV input terminals and adopts an analog/digital adapter to transform all respective analog signals into high level digital central processor used memorize the sequential orders which are sequentially output in last-in-first-out manner television. At same time, shuts off ANT/CATV amplifier RF switch thereof so as effect operation. When no from equipment being input, will instantly transmit another set electric power source delivered television via whereby Such made up electrical components, there be poor mechanical contact possibly occurring, resulting secure stable operation practical use.