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DIY Horizon to Horizon Polar Mount
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<blockquote data-quote="moonbase" data-source="post: 1019027" data-attributes="member: 178786"><p>[USER=409057]@blademedia[/USER]</p><p></p><p>Thank you for your reply.</p><p></p><p>Yes, I agree about the accuracy of the Az/El mount. the beamwidth of a large antenna is very narrow and to get a polar mount to accurately track an arc between the East/West extreme points might be quite tricky.</p><p></p><p>The motorised Az/El option with the slewing ring sounds as though it will be the best option for my needs. I have a Research Concepts RC2000C dual axis controller unit that should be able to manage both the slewing ring and the elevation actuator. I need to get the distance distribution of the mounting points on the 1200mm rear mounting ring of the Precision antenna and the recommended pole size. I am not sure if the 4.5" diameter pole I have here is under specified.</p><p></p><p>If you are in agreement, once I have the measurements and pole cap size I will pass them on to you and we can review the options and cost for you to fabricate the mount? One more question for now if you can help, is the slewing ring or the chain drive mount free from play when it tracks azimuth?</p><p></p><p></p><p>Rgds</p></blockquote><p></p>
[QUOTE="moonbase, post: 1019027, member: 178786"] [USER=409057]@blademedia[/USER] Thank you for your reply. Yes, I agree about the accuracy of the Az/El mount. the beamwidth of a large antenna is very narrow and to get a polar mount to accurately track an arc between the East/West extreme points might be quite tricky. The motorised Az/El option with the slewing ring sounds as though it will be the best option for my needs. I have a Research Concepts RC2000C dual axis controller unit that should be able to manage both the slewing ring and the elevation actuator. I need to get the distance distribution of the mounting points on the 1200mm rear mounting ring of the Precision antenna and the recommended pole size. I am not sure if the 4.5" diameter pole I have here is under specified. If you are in agreement, once I have the measurements and pole cap size I will pass them on to you and we can review the options and cost for you to fabricate the mount? One more question for now if you can help, is the slewing ring or the chain drive mount free from play when it tracks azimuth? Rgds [/QUOTE]
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DIY Horizon to Horizon Polar Mount
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