Hi Drew, I got 2.36A current consumption @ 5W using a dummy load and the TX button on 50.100MHz USB with my KX3 (S/N 3262). The voltage dropped from 13.74V to 13.67V during transmit. (Measured using an in-line Powerpole meter attached between a 54Ah LiFePO4 battery and the KX3.) Hopefully this helps!
BTW, I had to recently redo TX calibration because I ended up doing a factory reset while trying to re-run temperature compensation (long story), so I'm not sure if this is any more or less indicative of "normal" power consumption. Thanks, -Mooneer K6AQ On Fri, May 8, 2020 at 4:34 PM Drew Arnett <[email protected]> wrote: > Walter, > > 50 MHz TX constant 4 W carrier measures 13.53 V on DMM (outside the DC > power plug), 13.3 V on KX3 meter, 2.9 A on KX3 meter and 1.6 to 1 VSWR > on KX3 meter. Microwave dummy load with BNC to N adapter. > > I didn't measure all of this when the rig was new, so have no baseline > to know what is normal. :-( > > Thanks, > > Drew > n7da > > On Fri, May 8, 2020 at 11:19 PM Drew Arnett <[email protected]> wrote: > > > > What do you see for current draw on the KX-3? Manual says 1 to 2 A > typical. > > > > I'm seeing 3 A at less than full power on one band. Yikes! Makes me > > wonder if the repair shop is open? Elecraft website says hunkered > > down and mostly work from home. > > > > 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]
