I know nothing. I went to several sites and the display looks functional, but all I am hearing is white noise. Is there a tutorial somewhere? It has sounded

I know nothing. I went to several sites and the display looks functional, but all I am hearing is white noise. Is there a tutorial somewhere? It has sounded cool for years, but I need to bootstrap somehow. I am so old school that 95% of my listening is college radio stations (WREK, KFJC, WKCR...) and noncommercial stations KSDS, WFMU, WWOZ, ...). I would love to branch out.