1. ARJAN-5 (5 Band SSB/AM/CW HF Transceiver) - https://github.com/kaefe64/Arduino_uSDX_Pico_FFT_Proj
2. Impedance Transformer 1:49 for EFHW Dipole Antenna - https://rfsignal.eu/index.php/rf-constructions/40-impedance-transformer-1-49-for-efhw-dipole-antenna
3. EI7GL Amateur Radio Newsletter #0002 - 22nd March 2024 - https://ei7gl.substack.com/p/ei7gl-amateur-radio-newsletter-0002
4. International Marconi Day - https://gx4crc.com/imd/imd-registration/
** Award Guglielmo Marconi - https://www.assoradiomarinai.it/marconi/regolamento.html
** Guglielmo Marconi’s 150 birthday - https://www.alfatango.org/index.php?option=com_content&view=article&id=343
5. Положення диплому 75 річчя спілки іспанських радіоаматорів (URE) - https://www.ure.es/appure/75aniversario/Bases_75_aniversario_ukraniano.pdf
73 de UT2AB
