The Italian Amateur Radio Association Emilia-Romagna Regional Commitee APS (ARI CRER APS) invites OM, YLs and SWLs to contact the special callsign worked by ARI CRER APS, its 17 Radio Clubs (IQ4AD, IQ4AX, IQ4BQ, IQ4DJ, IQ4FA, IQ4FC, IQ4FD, IQ4FE, IQ4FH, IQ4FJ, IQ4HI, IQ4LH, IQ4PI, IQ4RA, IQ4RE, IQ4RN, IQ4SC), and the special callsign IY4FGM at Marconi Foundation, on the occasion of the 150th Birth Anniversary of Marconi. The event will take place from 01 April 2024 00:00 to 30 April 2024 24:00 CET (from 31 March 2024 22:00 to 30 April 2024 22:00 UTC). The official website for the event: https://www.150marconi.org/ Real time log at: https://www.150marconi.org/log/