FM PLL transmitter circuit 12V supply 500mW has the power circuit PIC16F870 and LMX2306 integrated based on the simple circuit of a single coil are killers though PLL (phase-locked loop-Phas... Read more
A Rotary encoder is an input device which helps the user to interact with a system. It looks more like a Radio potentiometer but it outputs a train of pulses which makes its application uniq... Read more
Yes, let’s recent project, a “Digital and PLL controlled FM Radio Receiver System” will give. Some of them may sound like a simple project. But a very open system development project. Curren... Read more
1.3 MHz 31MHz Antenna Analyzer circuit based on Pic16f873a microcontroller is able to measure between the frequencies of 1.3 MHz 31MHz 2 x 16 lcd on the frequency, omaj, swr, etc displays th... Read more
RF relay control circuit of the TWS-BS3 433.92 MHz rf transmitter and RWS-371-6 433.92 MHz rf receiver modules are used. RF relay control circuit of the receiver is used in all of the relays... Read more
433MHz RF Remote control system with PIC microcontroller This project shows how to use low cost 433MHz RF transmitter/receiver modules to build a 5-channel wireless RF remote control system... Read more
 transmitter and receiver using PIC12F1822){kind=link}
Introduction I obtained an early vintage Radiodetection® RD400 “LLTS” Precision Line Trace unit for a very low price through eBay. The RD400 is the receiver portion of a transmit... Read more
This project supports both RDS (Europe) and RBDS (USA) Tuner FM band 88..108 MhZ (Europe and USA.) You can choose between a 4×20 character LCD or a smaller graphical LCD to display data... Read more
Description This project uses a MicrochipPIC microcontroller and an Infra-Red LED to act as a PC controlled cable TV changer. Operation The purpose of this is so that my MythTVPersonal Video... Read more
I designed , built, tested and operated a 2m hamradio transceiver that includes all the necessary circuitry, in particular the voltage-controlled oscillator (VCO) + phase-locked loop (PLL) f... Read more
 amateur radio transceiver){kind=link}