G4ILO (Julian): Watts conversion

The original version of K1JT's WSPR software had pop-up "tip" windows that showed the power in watts when you hovered the mouse over the dBm setting. Very useful for duffers like me that can't do a watts to dBm conversion in my head. The new version WSPR-X doesn't, however.

I found (or more truthfully Google did) an online watts to dBm converter on the web which I have duly bookmarked.