Radio Relay in XCOM 2 is a structure you can build within Locations after they have been contacted.

Radio Relay Information

Placing a Radio Relay in a location increases their regular resource collection and reduces the cost of making contact with neighboring regions. You gain the ability to construct Radio Relays by completing the Resistance Radio Research Project.

    • radio relay how to build?27 Mar 2016 22:40  

      I have done the Resistance Radio Research Project and have gone to engineering but no option to build radio relays. This game is becoming pretty frustrating with the figure it out yourself stuff

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