Hello, I found this link: Free TV from United States - LyngSat But I see one of those is 152 degrees west! That's almost pointing the dish directly west. Are those really reachable? I have a 3' dish.
First off, I believe that list is channels that originate from the United States, not necessarily ones receivable from the United States.
Second, the position is the orbital location of the satellite, not the azimuth of your dish. You'd have to put each satellite's location into a dish aiming calculator to get the azimuth and elevation for your location.
YepI would say 129 would be the western limit at your location.