[TowerTalk] Mounting Ham IV vs Yaesu SDX 2800

[Roger (K8RI) on TT]

As has been stated they are different. You can make/build a flat plate 
adapter, or one that stands off a bit.  The mounting plate/accessory 
shelf for the Ham series of rotators has a cutout for the terminal 
strip.  The two makes use different bolt circles so the adapter plates 
are relatively easy to make.    IIRC the Yaesu uses a socket on the side 
of the bottom shell which simplifies things.  Just position the bolt 
holes for the Yaesu  so one comes out in the cutout.

I built several adapter plates using 1/4" Al plate. ( IIRC, they were 
about 4 X 4" ) to mount Yaesu thrust bearings on those accessory 
shelves.  I would think this would be close to the same.  I built stand 
off adapters, but if I do it again, I'll mount the plate flat on the 
accessory shelf with one Yaesu bolt in the cut-out.

They work about the same, but the flat mount is easier to explain.

73

Roger (K8RI)



On 5/13/2015 10:59 PM, Mr Toby wrote:
> I have a US Tower HDX 572 that has a rotator plate drilled for a Ham IV
> rotator.  I need to install a Yaesu SDX 2800 rotator. I believe the Yaesu
> requires a different mounting hole pattern.  Does anyone have tips / ideas
> on how to most easily make the alteration to the existing mouting plate?
>
> Marshall, AA0FO
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-- 

73

Roger (K8RI)


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