1. The Daily Heller: The Art and Design of Ham (Radio) (мистецтво та дизайн в Ham радіо) - https://www.printmag.com/daily-heller/the-daily-heller-the-art-and-design-of-ham-radio/
2. HF Wire Antenna Build and Test - https://openduck.com/post/radio-hf_antenna_experiment/
3. G0ZEN magnetic loop 40m 80m 160m antennas - https://sites.google.com/site/diydxmagneticloopantennas/
4. Чергова версія журналу LOG4OM (Version 2.23.0.0) - https://www.log4om.com/
5. Dxtelnet v.5.5 - http://brucerichards.com/telnet.htm
