1. Daylight Again – An all Analog Radio (Daylight Again – повністю аналогове радіо) - https://www.vu2ese.com/index.php/2022/08/04/daylight-an-all-analog-radio/
2. The broadband common mode choke, 1:1 balun and 1:1 unun (Широкосмуговий синфазний дросель, балун 1:1 і unun 1:1) - https://www.pa9x.com/the-broadband-common-mode-choke/
3. A Top Loaded End-Fed Half-Wave Antenna for 20m 2021 - https://hamradiooutsidethebox.ca/2025/01/16/a-top-loaded-end-fed-half-wave-antenna-for-20m/
4. F6AOJ RX splitter - https://www.pa1m.nl/f6aoj-rx-splitter/
5. YOTA Contest 2025 - https://yotacontest.mrasz.org/rules/english
73 de UT2AB
