Because of great conditions on HF, HI HI... I turn my power to 1 watt WSPR to see where I am reported today on 20 meter.
Conditions are very poor... around 10 hours UTC I only heard 1 SSB station on 20 meter. Is my antenna still working or what?
With JT65A I received several stations even from Asiatic Russia. So my antenna does work. Even with worse conditions, JT65A is usable.
Bert PA1B made a nice diagram for the lowest power possible. Thanks Bert.