1. Rules of the SWL Contest 2024 june july august 2024 (Правила конкурсу SWL 2024 червень липень серпень 2024) - https://icomjapan.blogspot.com/2024/01/rules-of-swl-contest-2024-june-july.html
2. SARC Communicator: May-Jun 2024 - https://www.calameo.com/books/007665474005274590198
3. The Logger's Bark Magazine (May Issue) - https://static.qrz.com/w7dk/May2024-QRZ.rE.pdf
4. Zero Retries 0152 - https://www.zeroretries.org/p/zero-retries-0152
5. OL-SDR - HF 1.8-50MHz 2 Channels SDR Transceiver - https://www.ol-power.com/sdr-en.html
** Keiths Teensy SDR - https://groups.io/g/keithsdr
73 de UT2AB
