EK-0 is a pirate station based in the Dolphin Resort Zone. It broadcasts news from within the occupied region and was the first sign of a resistance movement there.
Doctor Ivo Robotnik, ruler of the Zone, has repeatedly jammed the station's signals but EK-0 keep returning. On each occasion, EK-0 opens with the broadcast "You can't stop the signal", seemingly mocking Robotnik's inability to shut them down for good.
The radio station has been rumoured to be a front for the "Dolphin Resort Freedom Fighters", a group dedicated to freeing their home from the New Robotnik Empire. The Aquatic Capital Zone was accused of supplying them with weapons and microputers, although they refused to confirm or deny it.