Hi Barry, I suspect your RX noise level there is very low. When I put headphones on first thing I hear is 59 + noise on most of the bands. Sure enough I am never bothered by fan noise of my K3. All of the above is said to tell how much I envy you :)
73, Igor UA9CDC ----- Original Message ----- From: "Barry Simpson" <[email protected]> To: "Brian Alsop" <[email protected]> Cc: <[email protected]> Sent: Monday, January 23, 2012 1:58 PM Subject: Re: [Elecraft] Unbelievable! > Hi Brian > > My experience with the KPA500 exactly mirrors yours. After some fairly > long > overs, my fan begins to sound a bit like a vacuum cleaner although nowhere > near as loud as my former linear, a Yaesu FL7000. I do not find any cause > for complaint. It is simply a fact of life. > > I am also bewildered by people who say they never hear the fan in their > K3. > Mine comes on almost from the start and I can always hear it, even with my > headphones on. > > 73 > > Barry Simpson VK2BJ > > On 22 January 2012 11:40, Brian Alsop <[email protected]> wrote: > >> Like all things too good to be true, this posting about the KPA500 is a >> bit unbelievable. Like cars, YMMV. >> >> My experience with the KPA500 is much different. I suspect Jack only >> operates SSB. >> >> On CW expect the fan to come on after a few transmissions in under 30 >> seconds. Levels 1, 2 and sometimes 3 are often heard when doing some >> rag chewing at 500 W. The temperature stays below 70C as it should. >> RTTY is about the same with contest type operation. Expect the fan to >> operate as designed for these modes. >> >> It is not an absolutely quiet fan. I doubt Muffin type fans can be more >> quiet that what is used on the KPA500. One would have to go to a >> centrifugal fan like used on some of the really silent big amps to have >> it "pin drop" quiet. >> >> 73 de Brian/K3KO >> >> >> >> On 1/21/2012 23:19, Jack Berry wrote: >> >> > I'm with you Fred. I wish Elecraft made cars. They would read our >> > minds, >> last for 20 years and get 300 mpg! >> > >> > On Jan 21, 2012, at 4:03 PM, Fredric Serota<[email protected]> wrote: >> > >> >> I don't usually say much on these lists. But I have just finished >> building >> >> my KPA500, and I have to say that in my almost 50 years of hamming, >> this is >> >> the most incredible piece of equipment I have ever had. Now, I am not >> >> related to Elecraft in any way. They don't even know who I am. But I >> >> am >> so >> >> impressed with the quality of components and the engineering and >> >> thought >> >> that went in to this little package that I may sell my other amp (name >> >> starts with the first letter of the Greek alphabet) and buy another. >> >> My >> >> other amp is so noisy, the fan runs so loud and the "QSK" relays >> >> clickity-clack" when sending CW. The KPA500 is as silent as can be, >> >> generates over 600 watts without any noise at all. The only time I can >> hear >> >> the fan is when I shut down the amplifier, it turns on to bleed the >> >> high >> >> voltage to make it safe if you want to poke inside. No other piece of >> >> equipment I have ever had does that. It follows the K3 without >> blinking. And >> >> the software gives you all the measurements, including temperature, >> that you >> >> would ever want to know. And the satisfaction of breaking a pile up >> >> with >> >> half the power I usually run, puts the fun back in operating. >> >> >> >> >> >> >> >> And all you guys can say is you don't like the color of the buttons. >> >> Unbelievable! >> >> >> >> >> >> >> >> Fred Serota, K3BHX >> >> >> >> ______________________________________________________________ >> >> 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 >> > ______________________________________________________________ >> > 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 >> > >> > >> > ----- >> > No virus found in this message. >> > Checked by AVG - www.avg.com >> > Version: 10.0.1416 / Virus Database: 2109/4757 - Release Date: 01/21/12 >> > >> > >> >> >> >> ----- >> No virus found in this message. >> Checked by AVG - www.avg.com >> Version: 10.0.1416 / Virus Database: 2109/4759 - Release Date: 01/22/12 >> >> ______________________________________________________________ >> 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 >> > ______________________________________________________________ > 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 ______________________________________________________________ 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
