[Elecraft] K3 - Power cable voltage drop

[Jim Rhodes]

I have thought about doing that. Just requires a 2 wire hookup with small
gauge wire. But I run all of my small items like the remoterig box, LP-pan
box, VHF/UHF rig and so forth off of the main supply and if I have a larger
than anticipated voltage drop on rig power cable the voltage on the other
tings could go fairly high. The power supply is a HB thing with at least a
50 amp capacity and plenty of voltage overhead before pass transistors.
(Used to run 2 HF rigs before downsizing.)


On Tue, Dec 24, 2019 at 2:25 PM Rose <elecraftcovers at gmail.com> wrote:

> First, it would require some basic technical skill ... (;-)
>
> 73
>
> K0PP
>
> On Tue, Dec 24, 2019, 13:20 Karin Johnson <karinann at tampabay.rr.com>
> wrote:
>
> > Why hasn't anyone used remote sensing at the radio voltage input?
> > As far as I know all of the Astron supplies don't have external sense
> > wiring.  Many so called professional grade high current supplies provide
> > For external connection of the voltage sense back to the regulator chip.
> > I've toyed with this idea a bit but haven't had the time dig in to the
> > Astron supply I have.  If this were implemented then one could maintain
> > 13.8 volts or whatever you desired at the radio power supply inputs,
> > Regardless of the current draw.
> >
> > Karin Anne Johnson K3UU
> >
> >
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-- 
Jim K0XU
jim at rhodesend.net