I just was looking at this on Facebook. How well is the KU band received using the KU/C LNBF on the 120cm dish? When I tried last year C-band was received ok, but the KU band was not so good. I eventually got it to perform better, but not as good as with a standalone KU band LNBF.
Did the conical scalar ring improve signal strength? I tried this today, but the results were disappointing. It performed better without the conical scalar ring.