129 levels
I am at the very top of Interstate 5, northern WA State....and 129 levels on an 18" dish are 50 to 63 or so depending on the TP.
I plan on putting a 24: dish up for 129...needs a little help here.
I get the same levels on 129 as I het on 61.5.....go figure!!!
Maybe 24" dish for...