Thanks Julian (and those who replied off-list). I guess I'll just stick with my current practices and save my pennies for a KPA100 (and dream of moving so I can put up a better antenna)!
Julian wrote: > Message: 31 > Date: Thu, 3 Feb 2011 01:32:40 -0800 (PST) > From: "Julian, G4ILO" <julian.g4...@gmail.com> > Subject: Re: [Elecraft] K2: active cooling for data modes? > To: elecraft@mailman.qth.net > Message-ID: <1296725560779-5988112.p...@n2.nabble.com> > Content-Type: text/plain; charset=us-ascii > > > I think the same answer applies as to the earlier thread about running 100W > on digital modes using a K3. With PSK31 the IMD products will be too high > running the K2/10 at 10W, though to be fair, having done the comparison, my > own K2/10 is cleaner at 10W than my K3 is at the same power level and is > probably within the bounds of acceptability. > > Olivia, MFSK and RTTY should be OK at 10W as they are FSK mode (though > Olivia has been all but killed off over here by the selfish hordes running > the 2.2kHz wide ROS mode above 14.100.) But the K2/10 was not designed for > extended key-down operation. As the heat sink for the 10W PA is the bottom > of the case there isn't much scope for doing what you suggest unless you > want the K2 to sit on a heat sink. But you should also look at the driver > stage which is not heat sinked at all. I found that ran hotter than the PA > so I fitted a small heat sink to it internally. I do run my K2 at 10W in > digital modes but only for APRS packet where the transmissions a maximum of > a few seconds. > > Julian, G4ILO -- Owen B. Mehegan (o...@nerdnetworks.org) "He is a dangerous mixture of sophistication and recklessness which makes one anxious about his influence on other boys." ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
