F5GIT Tony (@f5git.bsky.social)

Arduino QRP Transceiver: DIY Success on HF Bands this article introduces an arduino based qrp cw transceiver designed for lower hf bands the journey begins with the wotduino evolving from a keyer to a multi mode beacon the development includes a qrp transmitter and culminates in a receiver inspired by roy lewallen design the transceiver controlled through a control bus features a signal path modulation filtering and adjustable frequency settings despite initial testing intentions successful qsos on 80 and 40 meters showcase its functional capabilities . Listed under the Technical Reference/Arduino category that is about Ham Radio - Arduino Projects. https://www.dxzone.com/dx35613/arduino-qrp-transceiver-diy-success-on-hf-bands.html