I can run through some of the items you suggest. But I don’t have an external wattmeter that can measure 100 watts. I do have a QRP wattmeter.
I will start tomorrow to try and work through the question. But to be completely accurate...you are saying that the KPA100 wattmeter (which is what I see when pressing TUNE and DISPLAY together), should read the same as the REQUESTED power (which is what the power knob sets)? Thanks, Mike NJ2OM > On Jun 28, 2020, at 8:58 PM, Eric Norris <norrislawfi...@gmail.com> wrote: > > > Congratulations, Mike! Please let us ALL know how it goes, as we of the K2 > clan learn something with every post. > > 73 Eric WD6DBM > >> On Sun, Jun 28, 2020, 2:12 PM Mike Kopacki <mikekopa...@gmail.com> wrote: >> Well, that gives me something to do! I’ll let you know how it goes. >> >> Thanks, >> Mike NJ2OM >> >> > On Jun 28, 2020, at 4:41 PM, Don Wilhelm <donw...@embarqmail.com> wrote: >> > >> > Mike, >> > >> > Congratulations on finishing the K2/100. >> > >> > On the power output variation, that is not normal. >> > First check the voltage delivered to the K2 while in transmit. >> > You should do that by tapping DISPLAY and scrolling to the voltage >> > display. Your power source should provide at least 13.8 volts, but higher >> > (up to 15 volts) is better. If the voltage shown by the K2 display during >> > transmit is less than 12.6, make certain all power cable connections are >> > tight. >> > >> > If the power supply voltage is not the problem, then remove the KPA100 >> > from the base K2 and realign the bandpass filters. Connect a dummy load >> > to the base K2 BNC ANT jack. After that, check the maximum power from the >> > base K2 - you should have at least 10 watts on each band. Record the >> > power for each band. >> > >> > Using a dummy load takes away any question about your antennas. Always >> > check into a dummy load - with an in-line wattmeter if necessary. >> > >> > The other possibility is that you have a problem in the Low Pass Filter in >> > the KPA100. To check for that, re-install the KPA100, but power the base >> > K2 from the coaxial power jack (no power to the KPA100 - connect the dummy >> > load to the SO2339 jack on the KPA100. >> > Again check the maximum power on each band from the base K2. It should be >> > no more than 5% less than you found with the base K2 only. >> > If there is a substantial difference in power, then check the KPA100 Low >> > Pass Filter - particularly checking the number of turns on the toroids. >> > >> > 73, >> > Don W3FPR >> > >> > >> >> On 6/28/2020 4:04 PM, NJMike wrote: >> >> I did notice a variation on the power output on different bands: >> >> 80m - 100w >> >> 40m - 100w >> >> 20m - 80w >> >> 15m - 50w >> >> 10m - 30w >> >> SWR was never above 1.3-1. >> >> Does that sound normal? >> ______________________________________________________________ >> 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 norrislawfi...@gmail.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
