My initial set up involved the top of my Big Green Egg, a cookie sheet, and the mag mount antenna. I was able to hit the repeater but my traffic was unintelligible I was told. That's when I went to the Jeep hood. It terms of elevation, the repeater is roughly 800' higher than I am at about 40 miles away. Looking at a topographic map, I was surprised this morning to see that I do have a relatively unobstructed line of sight to it. I mean, Obviously I can't see it 40 miles away, but from my elevation at about 800' and it's elevation at about 1600', there's not much between us and with the 3db gain on the Motorola stubby, I guess it gets "up" there well enough. I'm still in shock, honestly. I had zero idea that GMRS could go that far....especially not a 5W HT and slapdash mag mount on my Jeep in the driveway.