Portable QRP CW Transceiver
- Covers 40, 30, 20 and 17 meters
- Classical single IF superheterodyne design
- Has just a few barely hearable (~S0) spurious signals
- Simple but effective AGC
- Supports RIT and XIT
- 10-30 WPM Elekey-B type keyer + straight key mode
- Keyer supports record and playback, programmable with paddles
- ~5W class D power amplifier
- Has a VCC indicator and a SWR meter
- PCB is designed to fit into Hammond 1590BB enclosure
- The project is 100% open-source
Links:
- Article (in Russian): https://eax.me/ayn-4b-transceiver/
- Demo: https://www.youtube.com/watch?v=IM0qo4IA7QQ