Maybe you like this: https://physicsopenlab.org/2020/10/10/a-simple-11-2-ghz-radiotelescope/ https://physicsopenlab.org/2020/10/10/a-simple-11-2-ghz-radi... T

Maybe you like this: https://physicsopenlab.org/2020/10/10/a-simple-11-2-ghz-radiotelescope/ https://physicsopenlab.org/2020/10/10/a-simple-11-2-ghz-radi... The HN discussion (2020) about this can be found there: https://news.ycombinator.com/item?id=26078761 https://news.ycombinator.com/item?id=26078761