1. «Midi6» - експериментальний КВ 6-діапазонний SSB трансивер - https://dk7ih.de/an-experimental-hf-6-band-ssb-transceiver-part-1-basic-outline/
2. jAReC v4.0.1 - https://www.yo3ggx.ro/soft.html
3. LaboratoryW: Восстановление загрузчика Nano328 через Bitbang - https://www.youtube.com/watch?v=qB9Q8Ygz3Uw&t=14s
4. The K7RA Solar Update (01/21/2022) - https://hamradioworld1.wixsite.com/hamradioworld/post/the-k7ra-solar-update-01-21-2022
5. Learn and Have Fun with Morse Code - https://www.youtube.com/watch?v=EcYnugRw6C0
** Learning CW (Morse Code) Tips for Amateur Ham Radio - https://www.youtube.com/watch?v=Umjd1L84mng
** Quick Start: Learn To Copy Morse Code - https://www.youtube.com/watch?v=uvA8d1YqQPs