MP3随身听风靡一时,用它来听音乐、学英语确实很爽,但其存贮量相当有限而且价格不菲。如果你是一位电子发烧友,不仿自己动手做一个无线“MP3”。该“MP3”包括电脑、调频立体声发射器、微型调频立体声接收机三部分。发射器采用BA1404为主要元件。整个发射器电路如图1所示,本电路发射功率近5W,在2公里范围内接收效果良好。由于本装置发射功率较大,使用时,应注意遵守有 MP3 Walkman all the rage, use it to listen to music, learning English really cool, but its storage capacity is very limited and expensive. If you are an avid enthusiast, do not do a wireless “MP3” yourself. The “MP3” includes a computer, FM stereo transmitter, FM stereo receiver three parts. Transmitter using BA1404 as the main components. The entire transmitter circuit shown in Figure 1, the circuit launch power of nearly 5W, within 2 km reception good results. Due to the larger transmitting power of the device, it should be observed when using it