Simple FM Transmitter


Posted on Feb 4, 2014

Frequency range is 100-108 MHz. The circuit is only mono circuit, and accepts an audio input from either a microphone or other source. The input impedance is 1Mohm. The input sensitivity is 5mV and the max input signal is 10mV. The transmitted signal can be picked up on a FM radio. The circuit can be used for short-range transmission, eg. for wir


Simple FM Transmitter
Click here to download the full size of the above Circuit.

eless microphones. The power supply to use is 9-14 V DC, one of the little rectangular 9V batteries is fine. Connect this to the + and - points on the PCB. The sound input goes to the points marked "MIKE". The antenna should be connected to the point marked "ANT". The emitter`s output impedance is 50 ohms. You can make your own fancy antenna if you like.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Dynamo Current and Voltage Regulator
Sine-square-wave-oscillator
80W-3-30mhz-amplifier
Programmable Identifier
25 Watt Power Inverter Circuit
rfm12b wireless
Trigger circuits for stroboscopes
Ultrasonic Range Sensor
N-Power Amplifier
Servo Driver
Electronic Roulette wheel with 20 LEDs and with 36 LEDs
A tube amplifier 01 HI-FI
Video cable driven by the MAX4104 4105 4304 4305 s an enlarged schematic



Top