Tuesday, January 20, 2026
OpenSourceSDRLab PortaRF: The Next Evolution in Portable Software-Defined Radio
OpenSourceSDRLab PortaRF: The Next Evolution in Portable Software-Defined Radio: The OpenSourceSDRLab PortaRF is ultimate portable SDR, integrating the HackRF and PortaPack into one device. Explore its architecture and key features
Monday, January 19, 2026
Building Sovina 40M Class E CW Transmitter with BS170 MOSFETs
Building Sovina 40M Class E CW Transmitter with BS170 MOSFETs: High-efficiency 40M CW Class-E CW transmitter using BS170 MOSFETs and 74HC02. Complete circuit explanation and build notes for QRP hams.
Thursday, January 8, 2026
Simple Receiver S-Meter Circuit for Your Radio
Simple Receiver S-Meter Circuit for Your Radio: build a receiver S-meter circuit using op-amp 741 and MPF102 FET. Perfect project for measuring signal strength in radio receivers.
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