So, I have a giant satelite dish doing nothing in my roof, would be fun to experiment with it with a cantennaI have all the required things except a metal canWould plastic do?
It's unlikely that plastic would workA satellite dish is made from or coated with a metallic material that will reflect radio wavesIf you are going to try something like a big round cardboard or plastic container, try covering it with aluminum foil, which may help(You can also make a snazzy hat with any extra aluminum foil.) I read an article somewhere about using a Pringles? tube (aluminum foil lined) as a directional antenna to pick up weak WiFi signalsHere is a link to a calculator that gives you the diameter and length for a cantenna:
