Dish aerials are used for Satellite reception. See here as an example
http://www.skywise.tv/44cm-mini-dish-p-19.html
If an aerial is described as being any form of "Dish" but is used for terrestrial broadcast reception then the words have been dreamt up by a Marketing bod who earned himself a good bonus at the public's expense, they should be classed in the same group as Bankers.
There is a very simple adage for aerials, the more metal in the sky the better! Replacing metal with amplifiers only works to a certain level, after that it has no useful affect!
Ah, I feel better for that
