Új, egyszerű FM vezeték nélküli mikrofon alkatrészek elektronikus edzés DIY készlet 80 MHz-108MHz

New Simple FM Wireless Microphone Parts Electronic Training DIY Kit 80MHz-108MHz
FM Frequency Modulation Wireless Microphone Module DIY Kit For Teaching Suite DIY KITS, need solder yourself
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,
geographic extent of open, electromagnetic interference, the receiver sensitivity related equipment.Performance parameters:Frequency Range: 80MHz-108MHzOperating voltage: DC3V-6VTX 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 .Debugging:
Connect the power and antenna test, the antenna can be used 20-40 cm thick wire
(antenna not too long, so as not to affect the frequency stability),
the package does not provide, you need to bring your own.
FM radio receiving equipment used to adjust the tightness
of the inductor coil on simple wireless microphone,
so the radio signal received by the microphone.Package including :R1 resistor 2.2 k 1R2 resistor 22 k 1R3 resistance 220 1C1 C2 ceramics capacitors 104 3C3 ceramics capacitors 103 1C6 C7, C4 ceramics capacitors 30 3C5 ceramics capacitors 10 1Q triode 9018 1L inductance 4T 11 MIC electret microphoneBT3V CR2032 battery holder
311911830505 - ali110 (280)