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Circuit Diagram:: Components Required

The document discusses an FM transmitter circuit. It is a single transistor circuit that transmits information by varying the frequency of a carrier wave according to the message signal. It uses VHF frequencies between 87.5 to 108 MHz. The circuit accomplishes transmission over a long range using low power. Its performance depends on an induction coil and capacitors. It has applications in home sound systems, cars, and reducing noise in prison common areas. Advantages include low cost, high efficiency, and a large operating range. Disadvantages include requiring a wide channel, more complex design, and poor quality from interference.

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Teja Reddy
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57 views3 pages

Circuit Diagram:: Components Required

The document discusses an FM transmitter circuit. It is a single transistor circuit that transmits information by varying the frequency of a carrier wave according to the message signal. It uses VHF frequencies between 87.5 to 108 MHz. The circuit accomplishes transmission over a long range using low power. Its performance depends on an induction coil and capacitors. It has applications in home sound systems, cars, and reducing noise in prison common areas. Advantages include low cost, high efficiency, and a large operating range. Disadvantages include requiring a wide channel, more complex design, and poor quality from interference.

Uploaded by

Teja Reddy
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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The FM transmitter is a single transistor circuit.

In the telecommunication, the frequency


modulation(FM) transfers the information by varying the frequency of carrier wave according to the
message signal. Generally, the FM transmitter uses VHF radio frequencies of 87.5 to 108.0 MHz to
transmit & receive the FM signal. This transmitter accomplishes the most excellent range with less
power. The performance and working of the wireless audio transmitter circuit is depends on the
induction coil & capacitor.

Components Required: ( 2n2222 )x1 , (10pF)x2 , 18 gauge wire , 27k , 470 , 10k
resistors , 10uF , 0.1uF capacitors, 9v battery

Circuit diagram:
Application of FM Transmitter
• The FM transmitters are used in the homes like sound systems in halls to fill the sound
with the audio source.
• These are also used in the cars.
• The correctional facilities have used in the FM transmitters to reduce the prison noise
in common areas.
Advantages of the FM Transmitters
• The FM transmitters are easy to use and the price is low
• The efficiency of the transmitter is very high
• It has a large operating range
• This transmitter will reject the noise signal from an amplitude variation.
Disadvantages of the FM Transmitter
• In the FM transmitter the huge wider channel is required.
• The FM transmitter and receiver will tend to be more complex.
• Due to some interference there is poor quality in the received signals

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