Nejen pro převaděče. Doporučuji
https://ok2hf.blogspot.com/ https://ok2hf.blogspot.com/2018/08/ok0mf-na-jizni-hranici-138km.html, https://ok2hf.blogspot.com/2018/07/terenni-profil.html, https://ok2hf.blogspot.com/2018/08/suchy-vrch-2018.html,