[TowerTalk] Yaesu contol box?

[Pete Smith N4ZR]

Indeed - I've been using them since 1995 and they have always been DC.

73, Pete N4ZR
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On 8/6/2021 7:15 PM, k1ttt.dave at gmail.com wrote:
> HUH????  The g-800/1000/2700/2800SDX series going back to at least the 1980's were all dc drives
>
> David Robbins K1TTT
> e-mail: mailto:k1ttt at arrl.net
> web: http://wiki.k1ttt.net
> AR-Cluster node: telnet://k1ttt.net:7373
>
>
> -----Original Message-----
> From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Jack Brindle via TowerTalk
> Sent: Friday, August 6, 2021 16:07
> To: Towertalk <towertalk at contesting.com>
> Subject: Re: [TowerTalk] Yaesu contol box?
>
> 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
>>
>> On Fri, Aug 6, 2021 at 8:55 AM <k1ttt.dave at gmail.com> wrote:
>>
>>> Well, yes, kinda, maybe in a pinch.... all the boxes use the same 5
>>> pins for motor power and indication, so yes, they can all be used if
>>> needed to power each other... HOWEVER, the 2700 and 2800 use the 6th
>>> pin to detect when it is getting near the end of travel to invoke an
>>> auto slowdown to keep the more powerful motor and likely heavier
>>> antenna from hitting the hard stop too hard.
>>>
>>> David Robbins K1TTT
>>> e-mail: mailto:k1ttt at arrl.net
>>> web: http://wiki.k1ttt.net
>>> AR-Cluster node: telnet://k1ttt.net:7373
>>>
>>>
>>> -----Original Message-----
>>> From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of
>>> k7lxc--- via TowerTalk
>>> Sent: Friday, August 6, 2021 11:35
>>> To: towertalk at contesting.com
>>> Subject: [TowerTalk] Yaesu contol box?
>>>
>>> Howdy, TowerTalkians -
>>>
>>>      Are Yaesu control boxes interchangeable? Since they all have the
>>> same wiring, I'm thinking that they can all work with other Yaesu rotators. Is
>>> this right? Tnx.     Cheers,Steve     K7LXC
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