I wonder if Camping will turn in the licenses of his radio stations, or sell them, just before the date? (Actually I guess 5/21 is to be the beginning of the end and it all ends on 10/21)
According to how I heard Camping describe it, anybody left on earth after May 21 is doomed with no hope of salvation and the Earth will be in the process of being destroyed. He predicts that around sunset on May 21, starting first in the East (Japan etc) and ending in the west (Alaska etc) there will be an Earthquake that is absurdly strong killing and destroying just about everything that will cover every square inch of the Earth (as each part of the globe gets to sunset). Moreover he insists everyone who was saved will be raptured on that day (I think he means that it also goes around the Earth at sunset that way--saved people being caught up to Heaven right before the earthquake)
So there would indeed be no point in having the radio station after May 21
Also, we should know hear about an massive Earthquake like nothing anyone has ever hear of before starting in the Eastern part of the world on the afternoon of May 20...if he is right.