Descriptions: The QRM canceller is inserted from the trxinto the antenna's feeder without any additional modifications to the radio. The box has a built-in PTT control that keeps the canceller...
Size: Case size: 5.5 x 5.5 x 1.5cm / 2.2 x 2.2 x 0.6 inch(approx); Hour hand working radius: 31mm / 1.2 inch; Minute hand working radius: 46mm / 1.8...
Introduction: The main control chip is composed of STC89C52 chip + TDA5807 core device, which is connected through the I2C bus between the master and slave devices, and uses the...
Description: The YFM-2 type radio circuit is very simple. The total number of components does not exceed 19. Although the number of components is small, it includes two major types...
