For extreme qrp you should also try out the new mode ros .... With 5 w
and a wire you can work the world with almost no conditions (band closed)
I consistently work the world on 20m with only ONE watt (My PSK-20), an attic wire dipole, DigiPan, and PSK31, whether the band is open or not, but I take up less than 50 Hz of spectrum. I think may others do that also. If you can hear'em, you can work'em on PSK31, except over the polar paths.
73, Skip KH6TY
