Well, just to show how the Magic Band works: less than 1 Watts (abt. 0.5 W) and QSO was ready with a station in New Zealand, as shown below. My signal in New Zealand was just -29 dB (SNR). I heard ZL2ABN quit well - SNR -14 dB - although there was only 0.5 Watts in use too.
16857 km is also quit good distance between these two station.
(magic band = 30 metres or 10 MHz - as you like )