@jmorris @M0YNG Trying to work the USA in full daylight, several hours after UK sunrise on 160 metres might need full-fat QRO, as might trying to work Alaska during a large aurora. I'm not one of the committed hair-shirt QRP brigade, despite being introduced to ham radio by the late George Dobbs, G3RJV, who was a visiting reverend at my secondary school. I just enjoy using efficient radios that are the right size for the particular application. Microwatts to kilowatt as appropriate