3 KHz bandwidth for all amateur transmissions? Well, they're going to hear from the packet, ATV, FM and satellite amateurs if they try to pull this stunt. This had better be electromagnetic legend. I hope they know what they would be getting into here.
But it seems to me that we've heard about this before. Wasn't it the head of the ARRL, on a 15 KHz wide FM repeater, who shot his mouth off about a 3 KHz bandwidth limit - and then backed down and said he was only kidding? Bacon, WA3WDR