That would make perfect sense in several ways, and a handy thing to know
(particularly as I've decided to replace my 5400 with a 5500 and was
originally looking at either a 450 or an 800 to turn a couple of small VHF
beams.) Thanks for bringing that up!
On Sat, Aug 7, 2021 at 1:10 PM Ken Boasi <n2zn@rochester.rr.com> wrote:
> I’m not entirely sure, but the G-450 and the “AZ” portion of the G-5500
> are probably the same rotator.
>
> Ken N2ZN
>
> > On Aug 7, 2021, at 3:52 PM, Grant Hopper <kb7wsd@gmail.com> wrote:
> >
> > After looking at the older manuals, I think that's likely the case. The
> > 800/1000/2800 seem to have been DC for a long time. The 450 changed in
> > 2019 and the 5500 changed (based on the new manual and info at the DX
> > Engineering site) in 2019 too. That means all five of Yaesu's rotators
> are
> > all DC now.
> >
> >> On Fri, Aug 6, 2021 at 7:20 PM <john@kk9a.com> wrote:
> >>
> >> Perhaps only the G-450A (now G-450ADC) recently changed to DC?
> >>
> >> John KK9A
> >>
> >>
> >> Jack Brindle W6FB wrote:
> >>
> >> It happened long before 2019. My G-1000DXA from the 2000's is a DC
> device.
> >> Schematics for the controllers and rotors are on-line and available.
> >>
> >> 73,
> >> Jack, W6FB
> >>
> >>
> >>>> On Aug 6, 2021, at 1:47 PM, Grant Hopper <kb7wsd at gmail.com> wrote:
> >>>
> >>> There is one "gotcha" to all this. In 2019, Yaesu changed to using DC
> on
> >>> the rotors. From DX-Engineering " Instead of the usual AC motor
> drive
> >>> used in older rotator designs, the G-2800DXA, G-1000DXA and G-800DXA
> use
> >> a
> >>> variable-voltage DC motor, removing the need for a large starting
> >> capacitor
> >>> with its potential for failure exposed to outside temperature
> variations.
> >>> " The 450 and the 5500 are the same way.
> >>>
> >>> There might be an easy way to determine the AC vs DC upon inspection.
> I
> >>> haven't looked at all the manuals to confirm this but at least with the
> >>> 450, it uses only four wires for DC types. Otherwise, some of the
> models
> >>> are stamped with a "DC" after the model number eg. " For clarity, the
> new
> >>> DC rotator motors are marked "G-450DC" at the connector. The rear panel
> >> of
> >>> the controller is titled "G-450ADC" on the serial number label."
> >>>
> >>> 73,
> >>> Grant
> >>> KB7WSD
> >>
> >> _______________________________________________
> >>
> >>
> >>
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> >
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>
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