[Elecraft] KX-3 TX current draw?

[Mooneer Salem]

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 <arnett.drew at gmail.com> 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 <arnett.drew at gmail.com> 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
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