1. RFBitBanger Batch 2 QRP HF Amateur Radio Kit - https://www.ebay.com/itm/364783754396
2. AIOB: All in One BOARD: Audio / PTT / Programming / Cat Controll / 3.3v + 5v data - https://w1btr.com/index.php/product/new-aiob-test-run-all-in-one-board-audio-ptt-programming-cat-controll-3-3v-5v-data/
3. SDR# big guide book: 2024 edition released - https://rspy.com/downloads/SDRsharp_Big_Book_2024.pdf
4. Quisk (SDR)- https://james.ahlstrom.name/quisk/
5. r/amateurradio (Аматорське радіо на Reddit) - https://www.reddit.com/r/amateurradio/new/
73 de UT2AB
