A power ratio of 3 (1500 watts versus 500 watts) is just under 5 db. Check out these audio files (CW, though ... not SSB) I generated to see what kind of impact that can have for readability of signals near the noise threshold.
http://www.ab7e.com/weak_signal/mdd.html 73, Dave AB7E On 1/17/2012 4:12 PM, Brian Alsop wrote: > It's been stated here that the difference between 1500W and 500W is > mostly unimportant. Most views are going from about 100 w to 500 W. > > Here is another view based up the past 15 days of operation with a > KPA-500. The previously 1500 watts was used with identical antennas. > > I chase DX and specifically the DX Marathon award where you try to work > as many countries as possible each year. Yes I can still work stations > but the net effect is: > > 1) You won't work everything you used to > 2) It takes longer to work them > 3) SSB pileup cracking is more difficult > 4) RTTY pileups are more difficult still. > > Frustration. > > It hasn't been a complete wash. I've managed 174 countries/40 zones > with the KPA-500 BUT GETTING THERE WAS A LOT MORE DIFFICULT than Jan. 2011. > > The above isn't unexpected. > > Bring on a KPA-1000. > > 73 de Brian/K3KO > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
