Just curious if anyone had done a signal strength test of ATT service at the Mammoth Campground to determine the db gain and if a cell booster would benefit you there? A signal of 95db or better a cell booster would help with the signal 95db or worse no good. Just curious if anyone has had success with cell boosters there and whether or not it would be worth the cost for me to install one on my Class A motor home before making the trip next month.
I have the Wilson signal booster in mine, cradle style with small antenna, and it helps a little throughout the park. All in all, AT&T signal is poor in YNP and not great in the Tetons but there are places you can get service.