Tech support said they saw 1.5 to 1 on 50 MHz with their dummy load. HF looked great, of course. They didn't mention if they also used a microwave load. :-)
Best regards, Drew n7da On Sun, Sep 13, 2020 at 2:20 AM Drew Arnett <[email protected]> wrote: > > I did before shipping in for repair with a directional coupler. Looked great. > > On Sat, Sep 12, 2020 at 7:13 PM Nr4c <[email protected]> wrote: > > > > Well, it depends on the “Dummy” load. Have you swept the load with a good > > spectrum analyzer or VNA? It may not be 50 ohms at 50 MHz > > > > > > > > Sent from my iPhone > > ...nr4c. bill > > > > > > > On Sep 12, 2020, at 11:51 AM, Drew Arnett <[email protected]> wrote: > > > > > > After getting my KX3 back from repair (before my next planned contest > > > operation, thanks!), I ran some measurements to both see how great the > > > repairs were and to get a new baseline for future measurements. TX > > > efficiency problem was gone. > > > > > > However, I'm left to wonder about the accuracy of the internal SWR > > > meter for 50 MHz. Using a microwave dummy load of adequate power > > > rating and just a coaxial adapter, I measured the following: > > > > > > 14 MHz @ 1 W setting > > > VSWR 1.0 to 1 (per KX3) > > > > > > 28 MHz @ 1 W setting > > > VSWR 1.0 to 1 > > > > > > 50 MHz @ 1 W setting > > > VSWR 1.5 to 1 > > > > > > 50 MHz @ 4 W setting > > > VSWR 1.6 to 1 > > > > > > Not horrible. Not great. > > > > > > It's fine if it's not as accurate on 50 MHz. I just want to know if > > > this is normal. Has anyone else looked at that and can share what > > > they see? > > > > > > Thanks and best regards, > > > > > > Drew > > > n7da > > > ______________________________________________________________ > > > 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]
