Some data on core material recommendations

I gathered a little data on the cores. Just excerpts from the manufacturer's catalog.

This could help with selecting a core material for the band we want to use. I ran the numbers of some.

Just looking at the broadcast band and beyond.

Here they tell the number and size of wire for different core size. The calculator is good but it helps to know you can actually get the necessary number of turns on the core.

They recommend the material for antenna coils. This could be good to know.