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:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Linear MOSFET voltage regulator
    Optoisolated-high-voltage-driver
    Digitizer
    NP-100v12: DIY 12AU7 (ECC82) Tube / IRF510 MOSFET Headphone Amplifier
    Can a Hartley Oscillator be built using Fixed Inductors
    Ardurino Logger
    Schematic Diagram 300W Power Amplifier For Subwoofer
    Tube tester
    40 m Band Superhet Receiver
    BATTERY SIMULATOR CIRCUIT
    WS157 or WS106 low power micro switching power supply circuit
    Pyroelectric automatic door control circuit



    Top