I’d like clarification on this also. I don’t run an amp but I’ve run my K3 for years at 5 watts for QRP events without issue. My TUN PWR is set to 7 watts to keep my remote tuner and LPA happy.
The manual states that to manually initiate a TX GAIN calibration to set TUN PWR to exactly 5 (or 50) watts and hold the TUNE button. I can imagine that accidentally doing so into an antenna rather than a 50 Ohm dummy load could really mess up the TX GAIN calibration. Thoughts? 73, Brian, K0DTJ > On Jan 24, 2023, at 09:20, Lee Hiers <[email protected]> wrote: > > How would one search the archives for this info? > > Is this only the K3S, or does it also include K3? How about a K3/10? > > And you're saying one should never transmit with the transmitter set to 5W > (or 50W)? > > I do drive an Alpha 8410 with my K3/10 - and I've probably done so at 5W > out of the K3/10, although normally I'm using 12W. > > I would appreciate a link to something that indicates this is a bad thing > to do. > > 73 de Lee, AA4GA > > >> On Tue, Jan 24, 2023 at 10:57 AM Jim McCook <[email protected]> wrote: >> >> Dave, >> >> You should _never_ key the K3s at 5w (or 50w)! It can disrupt the TX >> GAIN settings and create huge power spikes, which can be a real problem >> if you use an amplifier. Just use 6w or 4w or 5.5w, etc. You can >> confirm this with Elecraft, who will tell you the same thing. Check >> previous threads; it has been discussed before. 73, Jim W6YA >> ______________________________________________________________ >> 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 >> Message delivered to [email protected] > ______________________________________________________________ > 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 > Message delivered to [email protected] ______________________________________________________________ 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 Message delivered to [email protected]
