I often check all the W1AW frequencies and have heard them sending code practice and bulletins from 160 through 10 meters many times on every band.  I have all their frequencies programmed in to my QSY    er so I can go right down the list, when they are on the air, and I have each one programmed to the exact same tone for each channel.  Today, in the middle of the afternoon, they were transmitting.  I could barely hear them on their 40 frequency, there was a dead carrier on 20, and I copied them at the same time on 17 meters but too faint on 15 and nothing on 10.  I checked off and on over an hour and the 20 meter signal was still a solid carrier and now code.  I thought somebody had zero beat their frequency but that wasn't it.  After awhile, I realized W1AW was transmitting the solid carrier.  Never heard that happen before.  They used to run 4 dash 1000 individual amps for each bands but I'm sure that's not what they are using now.  I hope it's a heavy duty tube, haha.

Phil.
K0NX