They have a larger barge with a radio antennae on it that they charge up and discharge....

f#a#​∞
Slow Riot for New Zero Kanada
Lift Your Skinny Fists Like Antennas to Heaven
Yanqui U.X.O.
'Allelujah! Don't Bend, Ascend! 
Asunder, Sweet & Other Distress
Luciferian Towers
At State's End
No Title