Overhaul The GPS System
This is primarily an idea for survival game play. But the fact that the GPS system exists at all in it's current form essentially makes beacons redundant and seriously reduces the value of antenna while eliminating the need to be broadcasting to share your coordinates with other players.
So the idea is simple. Restrict the use of GPS to players who have at least 3 broad casting beacons or radio antenna setup in a survival game. And obviously the player would need to be within rang of their communications network to be able to set a GPS marker and then use that marker as a navigational aid.