SZ123

Use the NEC Corporation of Japan upc1651 integrated circuit, the high gain circuit, the working stability, thus ensuring high-performance microphone. FM transmitter with its circuit components. The tramsmitter use 40 - 50cm soft drag line for antenna, effectively fired from more than 30 meter. Fine-tuning L and capacitor, will enable the launch frequency coverage for the 88 - 108MHZ. L use enameled wire with diameter of 0.51mm in diameter and 4mm column originated from around 5 laps.