If you are QRP oriented, then the first 5 watts counts. To get a 1 dB increase (6 dB), one needs to quadruple the power - 20 watts. 73, Don W3FPR On 5/27/2016 8:13 PM, Michael Walker wrote: > You know it is only 1 S unit more... 6db. > > It is the first 500 watts that count. > >