Perhaps; but there was been a very marked upsurge in activity the last eighteen months or so. I'm not sure all this activity is actually radio amateurs. I am hearing what sounds like WSPR on many frequencies, including the very bottom of 20 and 15m, and several spots in the 19m broadcast band, including on 15 MHz and 15400 KHz. Is anyone else hearing what sounds like WSPR or a similar mode on all these frequencies? .