500mw pll fm transmitter 88 108mhz

Posted on Feb 7, 2014

This PLL transmitter is controlled and the frequency is very stable and can be programmed digitally. Transmitter will work 88-108 MHz and output power up to 500mW. With a small change can set the frequency of 50-150 MHz. The output power is often set to several watts with transistors. So therefore I decided to build a simple transmitter with great

500mw pll fm transmitter 88 108mhz
Click here to download the full size of the above Circuit.

performances. The frequency of this transmitter can easily be changed by software and space / compress air coil. This transmitter is the oscillator colpitts. Oscillator is a VCO (voltage controlled oscillator) which is set by the PLL circuit and PIC micro controller. This oscillator is called the Colpitts oscillator and voltage controlled to achieve the FM (frequency modulation) and PLL control.

Leave Comment

characters left:

New Circuits



Popular Circuits

USB powered LED
Car brake Light
AVR Interrupts and binary counter
0 1000 volt regulated high voltage
1-Wire Barometer Calibration
A bedside lamp delay circuit
Bistable circuit control motor reversing circuit
Common series negative feedback amplifier