Onno W. Purbo hosted his own Amateur Radio personal wiki [1]. He's also uploaded his talks on Youtube [2]. [1] https://lms.onnocenter.or.id/wiki/index.php?sear

Onno W. Purbo hosted his own Amateur Radio personal wiki [1]. He's also uploaded his talks on Youtube [2]. [1] https://lms.onnocenter.or.id/wiki/index.php?search=Amatir&title=Special%3ASearch&go=Go https://lms.onnocenter.or.id/wiki/index.php?search=Amatir&ti... [2] https://youtube.com/c/OnnoCenter https://youtube.com/c/OnnoCenter