10GHz ATV is easy
https://hackaday.com/2016/12/22/get-on-10-ghz-for-3-euros/
http://www.pe1rki.com/dro.html
https://translate.google.com/translate?sl=auto&tl=en&js=y&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fhome.deds.nl%2F~knol%2FHB100%2F&edit-text=