[TowerTalk] Rotator Choice for Larger Yagi

[Roger (K8RI) on TT]

The HDR 200 and 300 rotators use spur gears and a wedge brake making 
them a poor example. They are basically a Ham M on steroids. I tore up 
teo of them in less than 2 weeks
They develop torque only when the motor is running.  I will never 
purchase another one of those,

OTOH  the double worm gear rotators list both rotating and holding torque
Big difference!

73

Roger  (K8RI)


On 5/4/2016 Wednesday 9:55 PM, john at kk9a.com wrote:
> Torque has nothing to do with ability to hold an antenna in the wind or how
> well a rotator will hold up.  The Hy-Gain HDR-300's that I owned had plenty
> of torque, but each of them required service approximately once a year. All
> of the damage to them occurred while they were not being used.  Amazingly
> the small windshield wiper motor with plastic gears that TIC General puts in
> their ring rotator turns my 250 pound H.B. interlaced 20/40m beam and other
> smaller monobanders with few issues.
>
> John KK9A
>
>
> To:	towertalk at contesting.com
> Subject:	Re: [TowerTalk] Rotator Choice for Larger Yagi
> From:	"Roger (K8RI) on TT" <K8RI-on-TowerTalk at tm.net>
> Date:	Wed, 4 May 2016 19:27:59 -0400
>
> Torque means a lot. It's the ultimate measure of turning power and the
> ability to hold an antenna in the wind.
>
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>
>
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-- 

73

Roger (K8RI)


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