Combat Signals can be purchased in the Armory for Credits.Combat and Economic Signals can be purchased in the Armory for Coal.Reward: up to five ' 'More Signals' containers and two Gift containers. You must earn 5,000 Base XP in victorious battles. The second mission chain comprises five missions with the same condition.
Reward: up to three 'More Signals' containers and one Gift container. You must earn 2,500 Base XP in victorious battles. The missions can be completed in Random, Ranked, and Co-op Battles, as well as in Operations and Brawls.
With Update 0.9.3 an unlimited number of economic and special signals (one each) can be mounted. A maximum of eight (8) combat signals can be flown simultaneously. In game, they confer combat or economic bonuses to the ship flying them. Signals are small flag-like pennants, displayed individually or as a set, that nominally are used to communicate to other ships.