I have a small round dish 1 meter and wanted to know if a dual lnb (ku and c band) would work on it and if so what would be recommended and do i need an adapter for the lnb or anything else
Yea most of the Mini CBAND dishes used here are 1.2m, like I have myself.
I personally did test a 1m just like you and the results weren't as great as when I did it with 1.2m
I had bad luck with a dual C/Ku lnbf on my 1.2M dish. I'm much happier now, simply swapping out between my GeosatPro C2( for Cband) and dual Ku lnbf . The combo lnbf does not have nearly the Ku performance of a Ku lnbf designed for the offset dish. My advice is to use two separate lnbf's and swap them out as necessary.