Yes, you should be able to use iPads in the endzone and on the far side of the field. iPads have pretty good built-in wifi antennas. With Reveal, iPads usually have a range of 100 to 150 yards from the base station. Smaller devices like iPhones and other smartphones have a shorter range of about 50 yards because they have smaller, less powerful built-in wifi antennas.
There are a lot of factors that can impact your wireless range. These include:
Physical obstructions like trees and buildings.
Topography – physical contours of the immediate area.
Interference from other radio frequency (RF) systems such as cell towers, other wifi networks, and emergency communications equipment.
To maximize the range of your system, it’s best to elevate the base station and keep clear line of sight to the main areas where you’ll be using iPads and tablets.