Tuesoa RDA5807 DIY Electronic Kits Wireless Stereo FM Radio Receiver Module PCB 76MHz-108MHz DC 1.8V-3.6V Easy Install

IF frequency of the circuit is designed to 70KHZ, peripheral circuits without intermediate frequency transformer, wherein the frequency is by an internal RC circuit IF filter to complete. Aircraft such as digital radio tuner that uses electrical tuning buttons ( +, -), in addition to the volume control buttons (VOL +, VOL-) and the power button (PW). The kit FM scan radio pocket computers using special blocks, 16-pin dual flat package, the working voltage of 1.8-3.6V, the circuit includes a FM radio receiver from antenna to the frequency discriminator output audio signals of all the features, it also has search tuning circuit, the signal detection circuit, a mute circuit and compression frequency offset of the frequency-locked loop circuit. Frequency range is 76-108MHZ. Both receive Universal FM FM station can be received school campus radio station. This kit is not just welding assembly, as well as adjust their own hands and the coiled coil, more fun, this is the other simply assembly kit. The main advantage of using the headset also takes into account the student's classroom noise.