DIY FM Frequency Modulation Wireless Microphone Module DIY FM Transmitter Board Kit

Description: The circuit transmission frequency of about 90MHz,using ordinary FM radio receiving equipment, adjusting the inductance L to adjust the transmission frequency to avoid the local radio frequency, the circuit operating voltage: DC 3V-6V, emitted from the package of about ten to several tens meters, the distance of the supply voltage, the antenna length and impedance matching, geo graphic extent of open, electromagnetic interference, the receiver sensitivity related equipment. Frequency Range: 80MHz-108MHz Operating voltage: DC3V (CR2030 battery, Not included) TX antenna is connected: You can take a piece of wire as an antenna, The antenna should not be too long, so as not to affect the frequency stability. Package Included: 1 x DIY FM Transmitter Board Kit