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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Upside down offset dish
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<blockquote data-quote="s-band" data-source="post: 1116608" data-attributes="member: 407744"><p>I'm not sure of the pulse width range of the RC2KA. Mine are the X variant which don't have pulse output. To get the full range from the servos you need ~250-2000us pulse width.</p><p></p><p>[USER=401140]@7mdish[/USER] Attached is a table of offset angles for GD/Prodelin dishes. The diagram shows the RF axis (i.e. where it is pointing)</p><p></p><p>If you want full H-H from an offset, the dish has to be a long way forward of the king post. It becomes very unbalanced at the extremes and needs heavy counterweights to reduce the load on the polar mount, motors and king post. See RimaNTSS post:</p><p>[URL unfurl="true"]https://satellites.co.uk/forums/threads/channel-master-1-8-restoration.169213/page-3#post-1013430[/URL]</p></blockquote><p></p>
[QUOTE="s-band, post: 1116608, member: 407744"] I'm not sure of the pulse width range of the RC2KA. Mine are the X variant which don't have pulse output. To get the full range from the servos you need ~250-2000us pulse width. [USER=401140]@7mdish[/USER] Attached is a table of offset angles for GD/Prodelin dishes. The diagram shows the RF axis (i.e. where it is pointing) If you want full H-H from an offset, the dish has to be a long way forward of the king post. It becomes very unbalanced at the extremes and needs heavy counterweights to reduce the load on the polar mount, motors and king post. See RimaNTSS post: [URL unfurl="true"]https://satellites.co.uk/forums/threads/channel-master-1-8-restoration.169213/page-3#post-1013430[/URL] [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Upside down offset dish
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