Hi I don't know if you take NCJ or not, but K5RC wrote an article about "The Next 3db." Interesting reading. 73 Tom W7WHY Subject: Re: [RTTY] What should I expect from 3db improvement in SNR? > At 08:05 AM 2/16/2011, N2WQ wrote: > >So, my question is what should I expect from doubling my power from > 750 to 1500W? >