I just completed the build of my KAT500 and KPA500 and I had the following issues.
The KAT500: the software was very flaky trying to connect to the KAT. I run Fedora 21 so it might be the bleeding edge Linux. I did finally get the connect and hit the optimize for KPA500 button. I am still not able to hit the tune button on the KAT500 and get the K3 to xmit and tune. If I hit the button and then hit the tune button manually on the K3 it tunes? KPA500: When I first powered up the display would say KPA500 for a bit then Invalid?? Then if I put the amp to oper it would immediately get the 270v fault. I took it apart and inspected all the connections including the ribbon cables and although I did not find anything out of place or not seated when I put it back together it seems to just work? I have made a few contacts and everything seems to be OK. The amp follows the K3 band with no problems. -- Rick Stanback (N4WCQ) "Chance only favors the prepared mind. Louis Pasteur" On Thu, 2015-03-12 at 14:08 -0400, Scott Manthe wrote: > I suspect that the "Noise Power Ratio" test was used because that is the > only test that Adam could use to get his beloved Icom gear near the top > of the list. Mr. Farson has had a website devoted to Icom gear for many > years, so I'm not sure if this test could be considered even remotely > objective. > > Here is a NPR tutorial from another source, for those interested and > technically proficient enough to investigate further. > > 73, > Scott, N9AA > > On 3/12/15 10:53 AM, Chip Stratton wrote: > > Adam Farson VA7OJ has an article in the current March/April 2015 QEX > > discussing the use of Noise Power Ratio (NPR) to help define a > > receiver's performance in a crowded band in a way that might be more > > illuminating than the simpler two tone tests. Its an interesting > > discussion which makes some sense, but then I'm not anywhere close to > > an expert in that field. > > > > In any event, he has figures from a number of transceivers, including > > a couple of K3s which no doubt do not have the new synthesizer. The > > K3s still performed very well relative the the rest of the field in > > these tests, though they were slightly behind the IC-7700, IC-7800, > > and TS-590S. > > > > Which of course makes me wonder how the K3 with new synthesizer would > > perform in this arena? > > > > >From a guy with a mild metrology addiction... > > Chip > > AE5KA > > > > ______________________________________________________________ > 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 > Message delivered to r...@tripletry.com > ______________________________________________________________ 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 Message delivered to arch...@mail-archive.com