QRP transceiver from VU2ESE. Its a semi software defined radio for general coverage HF which uses Si570 XO from silicon labs as local oscillator controlled by Arduino controller ATMEGA328P. For more details regarding construction, features and circuit designs feel free to click this resourceful link.
This project is in R&D stage and still you can find a crowd of audience discussing its performance which clearly states its the best of its kind. Fore those serious critical examiners there is a forum for discussion about ongoing updates and modifications regarding core issues Freelists.
MINIMA Schematic Diagram |