Also in the diaries of many OK and OM stations is the brand 7J4ALL. The answer to why this is so is given by the following video with a demonstration of the antennas of this station.
Antennas 7J4ALL
Previous articleAMSAT-DL Online Symposium
Next article VHF antenna F8KGU according to YU1CF
You could take another look
Contesting 7 minút čítania
Japan International DX contest CW 2026
Digital fashions 3 minutes of reading
TX9W: Rádioamatérska expedícia z perly Pacifiku
Ham information 1 minute of reading