Medium Wave Transmitter Schematic

In wireless communication the frequency modulation fm carries the data or information by changing the frequency of the carrier wave as per the information or a message signal.

Medium wave transmitter schematic.

A fm transmitter can cover maximum distance here showing a long range fm transmitter circuit diagram that can cover the distance upto 5 km and with the power of 1 w. Converts the amplified signal to radio waves. The fm transmitter achieves the application of very high frequency vhf radio frequencies. The fm transmitter frequency modulation circuit is made up of a single transistor or a bjt.

Here presenting a small powerful circuit of a fm transmitter which operate with 12v dc. Here is the circuit diagram of a simple am transmitter circuit that can transmit your audio to your backyard. What is fm transmitter circuit. Spitfire pll medium wave and 160m amateur band am transmitter 9khz channel spacing.

Community radio stations and vintage radio collectors around the world use the spitfire am transmitter generally accepted as having one of the best frequency synthesizers and modulators of any part 15 compliant am transmitter available. They provide no schematics. Medium wave mw is the part of the medium frequency mf radio band used mainly for am radio broadcasting the spectrum provides about 120 channels with limited sound quality. A radio receiver is the opposite of a radio transmitter.

Generalized schematic diagram of an am transmitter converted from a vintage tube radio. Propagation in the night allows strong signals within a range of about 2000 km. During daytime only local stations can be received. It uses an antenna to capture radio waves processes those waves to extract only those waves that are vibrating at the desired frequency extracts the audio signals that were added to those waves amplifies the audio signals and finally plays them on a speaker.

I replaced these with 3 pin 1 amp 8v regulators and run the board at 12vdc to give headroom for regulation. This circuit is designed with limited power output to match the fcc regulations and still produces enough amplitude modulation of voice in the medium wave band to satisfy your personal needs. I just traced out the board. This is circuit of 5km long range fm radio transmitter circuit.

There are two 50 ohm resistors that split the 9v power between the rf and af sections of the board dropping the voltage to about 8vdc.