All HF bands QRP CW/SSB transceiver "HomeBrew Radio, Mark 2".
- Covers 80, 40, 30, 20, 17, 15, 12 and 10 meters
- Classical single IF superheterodyne design
- Effective IF derived AGC
- Voice compression
- Supports RIT and XIT
- 10-30 WPM Elekey-B type keyer + straight key mode
- Keyer supports record and playback, programmable with paddles
- Five favorite frequencies per band (press NEXT/PREV in FAST mode)
- Class AB amplifier provides 5-10W in both CW and SSB
- Has a S-meter and a SWR meter
- Open-source firmware, schematic and 3D-printable enclosure
Links:
- Article (in Russian): https://eax.me/hbr-mk2-transceiver/
- Post on Hackaday: https://hackaday.com/2024/05/13/github-hosts-ham-radio/
- Discussion on AmateurRadioBuilders: https://groups.io/g/AmateurRadioBuilders/topic/106073792
- Video blog on YouTube: https://www.youtube.com/playlist?list=PL6CWlCy5akj5v1Z4mPysYlqgNtCBYy-wM
- Demo: https://www.youtube.com/watch?v=D7rNUXjIyPM