Thanks everybody for the feedback. I will let you know on the progress.
Kip
On Thu, 2010-09-02 at 20:10 +0200, DF3KV wrote:
> I found 40 seconds for one rotation real nice for contesting after I built
> my own rotator.
> I turned a christmas tree of 5 element yagis 20-10m + 3L FS on 40m without
> problems, but the stress on the double worm gearbox is quite heavy.
> I used finally a 50mm drive shaft to flange to the rotating mast, 25mm
> sheared off immediately the first time the rotation stopped.
> On my present installation with slew ring drive it takes 90 seconds to
> travel 360° which I find a bit too slow.
> Higher speeds are no problem for antennas built to survive storms.
>
> 73
> Peter, DJ7WW
>
> -----Original Message-----
> From: towertalk-bounces@contesting.com
> [mailto:towertalk-bounces@contesting.com] On Behalf Of Kipton Moravec
> I am building an antenna rotor for a HF antenna.
>
> How fast should the antenna rotate?
>
> Looking at the motor/gear they have now it looks like it will rotate at
> 10 RPM, which means 6 seconds to go end to end. That seems too fast to
> me. If I change gear sets I can go to a 4 RPM which is 15 seconds to go
> to one end to the other. That still seems a little fast. On the other
> hand if it goes too slow people will not like it.
>
> For you folks that like contesting, what speed is reasonable?
>
> Or maybe I should ask what is the slowest speed you would not complain
> about? :)
>
> Kip
--
Kipton Moravec AE5IB .- . ..... .. -...
"Always do right; this will gratify some people and astonish the rest."
--Mark Twain
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