(As a disclaimer, some of these ideas may have been used or suggested elsewhere, but they aren't plagarised, meaning that they have been altered.)
Repair & Science: Radios
Without a Radio of your own, you would only be able to communicate with other players via speaking within a short distance, or by purchasing a radio that breaks after a certain usage via a shop vendor.
Both 20 - Able to create a small radio that can be used to speak with other players in the same reigon. (10 uses per day.)
Both 50 - Upgrade radio for a larger area (All surrounding areas and reigons). (Requires original radio.) (20 uses per day.)
Both 80 - Upgrade radio for a even larger area (All areas surrounding the surrounding areas). (Requires original radio and all previous upgrades.) (30 uses per day.)
Both 100 - Upgrade radio for maximum distance (Entire wasteland.) (Requires original radio and all previous upgrades.) (30 uses per day.)
