[NLRS] Dish experts

[W0ZQ at aol.com]

It scrappy days here in Bloomington - Bloomington homeowners can set out  
whatever at the curb and the trash haulers will pick it up Saturday  morning. 
 My XYL, while scouting out the neighbors "junk", found a dish  complete 
with feed arm.   The dish measures 36" high and 32"  wide.  This compares to 
my current dish of 26" high and 23.5" wide.   By current dish is steel, the 
bigger dish appears to be aluminum, and the weight  is about equal.  Question 
- how much more gain may the bigger dish have  compared to my current dish ?

73, Jon
W0ZQ