How does FM radio circuit work?

Posted on by Drake Andrew

How does FM radio circuit work?

FM Radio Circuit Principle: Radio is the reception of electromagnetic wave through air. The main principle of this circuit is to tune the circuit to the nearest frequency using the tank circuit. Data to be transmitted is frequency modulated at the transmission and is demodulated at the receiver side.

What is FM transmitter circuit?

The FM transmitter is a circuit that uses a very low power to operate and does uses (Frequency Modulation) FM Waves to transmit the sound. With the help of such FM transmitters we can easily transmit the audio signals through the carrier waves with different frequencies.

How can I make a FM radio station at home?

Infographics: 8 Steps to Build/Design Your Own FM Station

  1. Note: This FM transmitter building concept is only for the students and hobbyists to design circuits and, not meant for commercial purposes.
  2. Draw the Circuit Schematic.
  3. Install the Components onto Breadboard or PCB.
  4. Connect Audio System.

How do you make an FM antenna?

  1. Cut a length of speaker wire.
  2. Split the two wires into single length pieces.
  3. Strip insulation from one end of each length of single cable exposing about one inch.
  4. Strip about one inch of insulation from the end of the antennae leads.
  5. Twist the exposed wire of one extension to one antennae lead.

How do you make a FM modulator?

  1. Step 1: Prepare the Case. FM Transmitter Case.
  2. Step 2: Prepare the Jack. Of the two 4″ pieces of 24 AWG hookup wire, strip about 1/2″ from each end and tin.
  3. Step 3: Form the Coil.
  4. Step 4: Install the Components.
  5. Step 5: Soldering the Components Together.
  6. Step 6: Mount PCB.
  7. Step 7: Tune the Circuit.
  8. Step 8: Final Assembly.

How to make FM radio receiver at home?

The first step is to take the ribbon wire in the length of few inches longer than required.

  • The second step is to strip off the insulation of the two wires from one end and tie the two uninsulated corners of wires together.
  • The third step is to cut the bottom wire from the very center and can be stripped back to attach one and of the ribbon.

    • How to build a simple FM radio transmitter?

    Q1- Transistor- 2N3904

  • Capacitors- 4.7pF,20pF,0.001uF,22nF. Note: 0.001uF has code 102 and 22nF has code 223.
  • Variable capacitor: VC1.
  • Resistors- 4.7 kilo Ohm,470 Ohm
  • Condensor/Electret Microphone On your electret microphone,you will see that on one of the pins,there is solder pad connected to the case of microphone.
  • Inductor- 0.1uF.

    • What is the best FM radio transmitter?

    – Frequency Range: The best FM transmitters deliver optimal frequency range. – Broad Compatibility: The FM transmitter should connect to a number of different devices. – Sound Quality: The FM transmitter is only as good as the sound quality. – Usability: Lastly, the FM transmitter needs to be simple to use.

    How to get FM radio on a TV?

    Make sure it is outdoors,roof mounted,or in the attic.

  • Most roof antennas will give you radio reception similar to a car radio,or often better.
  • Try repurposing a TV antenna you already have; use an FM splitter to use it on your radio.
  • Consider an omnidirectional radio antenna.