收音机是当今世界上数量最多,普及率最高的音响设备。其接收方式已从调幅、调频、调频立体声向调幅立体声、调频四声道方向发展,在元器件方面也从电子管、晶体管、集成电路发展到微处理器,采用新技术、新工艺、新材料、新能源的收音机不断涌现。在我国收音机正悄悄地进行一场更新换代的变革,其发展趋势呈现以下特点。电脑全自动收音机:这种新潮收音机普遍带有液晶数字频率显示的电脑控制,只需七秒钟就可以完成全部频率的搜索选台。在整个搜索过程中,电脑会把电台的频率存入随机的存 Radio is the world’s largest and most popular audio equipment. Its receiving mode has been developed from AM, FM, FM Stereo to AM Stereo and FM Four-channel. In terms of components and components, it has also developed from microprocessors to tubes, transistors and integrated circuits. The new technologies, new processes, new materials, New energy radio continues to emerge. Radio in our country is quietly carrying out a change of replacement, the development trend of the following characteristics. Fully automatic computer radio: This trendy radio generally with LCD digital frequency display of computer control, just seven seconds to complete the search for all the frequency selection. Throughout the search process, the computer stores the frequency of the radio into random storage