Quote Originally Posted by dr.zin View Post
I remember the ring from an lna I bought in the 80's but never had a chance to use.
Would that be something I need on a modern lnb/ 8.5' dish?
A moot point,since the original feedhorn diameter is smaller than a modern C/Ku the ring just slides inside a modern lnb all the way.
The original scalar had to be reamed out to fit the new one after looking at it again.