just did that. no help. …bill > On Nov 14, 2016, at 8:22 PM, ab2tc <ab...@arrl.net> wrote: > > Hi, > > How about following Vic, 4X6GP's advice and test the K3 without the KPA500 > in circuit? Your symptoms are exactly as if the K3 TX calibration is badly > out of wack as he suggests. The fact that a band change makes it worse is a > dead give-away. A band change makes the K3's ALC algorithm reset itself to > defaults and these defaults are set by the TX gain calibration. Your > situation seems a bit extreme, though, with only 20% initial power so there > may be other problems. But please test this out without the KPA500 in > circuit. And surely eliminate antenna problems by testing into a dummy load. > > AB2TC - Knut > > > > > Bill Conkling wrote >> That hasn’t helped my KPA500. I notice it particularly after a band >> change. >> >> …bill nr4c >> >> >>> On Nov 13, 2016, at 10:58 PM, Vic Rosenthal 4X6GP < > >> k2vco.vic@ > >> > wrote: >>> >>> Hi Barthold, >>> >>> Maybe the K3S output is ramping up slowly. Do you notice this with the >>> KPA500 off? Running the TX Gain Calibration in the K3 Utility might help >>> in that case. >>> >>> 73, >>> Vic, 4X6GP >>> Rehovot, Israel >>> Formerly K2VCO >>> http://www.qsl.net/k2vco/ >>> >>> On 14 Nov 2016 00:51, Barthold Lichtenbelt via Elecraft wrote: >>>> Hi All, >>>> >>>> >>>> >>>> Maybe you can help with something that is baffling me. My KPA500 doesn't >>>> go >>>> to full output until I have spoken my callsign (when trying to get >>>> through a >>>> pileup) a few times. It starts off with 100 or so watts, and after a few >>>> iterations rises to the full 500W output. I see this both on the KPA500 >>>> LED >>>> bar, as well as on the P3 PEP output monitored by P3TXMON. My full >>>> setup is >>>> K3S+KPA500+KAT500+P3+P3TXMON. All devices run the latest released >>>> firmware. >>>> >>>> >>>> >>>> Any thoughts much appreciated! >>>> >>>> >>>> >>>> Barthold >>>> >>>> AD0RM >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> <http://mailman.qth.net/mailman/listinfo/elecraft> >>> Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm> >>> Post: mailto: > >> Elecraft@.qth > >>> >>> This list hosted by: http://www.qsl.net <http://www.qsl.net/> >>> Please help support this email list: http://www.qsl.net/donate.html >>> <http://www.qsl.net/donate.html> >>> Message delivered to > >> nr4c@ > >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> <http://mailman.qth.net/mailman/listinfo/elecraft> >> Help: http://mailman.qth.net/mmfaq.htm <http://mailman.qth.net/mmfaq.htm> >> Post: mailto: > >> Elecraft@.qth > >> >> This list hosted by: http://www.qsl.net <http://www.qsl.net/> >> Please help support this email list: http://www.qsl.net/donate.html >> <http://www.qsl.net/donate.html> >> Message delivered to > >> lists+1215531472858-365791@.nabble > > > > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/KPA500-power-output-starts-out-low-then-goes-up-tp7623993p7624027.html > > <http://elecraft.365791.n2.nabble.com/KPA500-power-output-starts-out-low-then-goes-up-tp7623993p7624027.html> > Sent from the Elecraft mailing list archive at Nabble.com > <http://nabble.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 n...@widomaker.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
