We used the Yaesu elevation rotor in a contest for a 4 x 12 El 2M array
and it seemed like that was about the max. We wouldn't trust it for a
permanent installation. Yaesu rates the load in something like length
time weight...it limited to 50 IIRC. So 9 ft dish, 4.5 ft away from
center...makes for a 11 pound weight limit.
I hunted around and found this dish rotor
http://sadoun.com/Sat/Products/S/H180-Moteck-hh-motor.htm
It's got a lot more metal and doesn't cost that much. Use it with this
controller
http://sadoun.com/Sat/Products/PowerTech/Sadoun-V3000_GBOX_VBOXIII.htm
The controller reads +/0 950 counts corresponding to +/- 90 degrees. The
rotor closes a switch at 0 degrees for calibration.
Next contest, we're using the H180 to elevate the array. I just bolted
an aluminum plate to the dish mounting brackets to hold the H frame pipe
clamps.
jeff, wa1hco
JMLTINC@aol.com wrote:
> Any folks had trouble with a fully loaded G-5500 alt/el rotator? I have a
> friend who is considering putting an elliptical offset dish (probably 9 sq
> ft,
> with feed and mount) on this rotor in Northern Illinois. Any thoughts?
>
> Thanks,
> John, N9RF
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|