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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Dish motor less wear and tear
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<blockquote data-quote="Channel Hopper" data-source="post: 1082037" data-attributes="member: 175144"><p>That might assist, though the solution is to counterweight the dish.</p><p></p><p>Hi Alpi <img src="/styles/default/xenforo/smilies/emojione/thumbsup.png" class="smilie" loading="lazy" alt=":Y" title="Thumbs Up :Y" data-shortname=":Y" /></p><p></p><p>If you have an - analogue - ammeter then try looking at the peak current at motor start (along with the associated drop in voltage, which will be down to the ASC circuit falling down when it is needed most)</p><p></p><p>Adapting the 3.7m with standard polarmount will consist of three spars - top/left/right - running back from near the ends of the existing supports (ribs), and careful addition of a cage where they meet behind the mount, with weights to compensate until you get reasonable motor engagement at the extremes. Unless you have the brace brackets installed, constructing three triangular braces across two of the rib bolt-holes will reduce potential distortion of the panels. </p><p></p><p>Ideally the weight should be as far as possible behind the polarmount to keep the counterweight mass down, though practically it will be about double the distance from the reflector front to the motor gearbox, approximately 2.5 -3m.</p><p></p><p>[URL unfurl="true"]https://gdmissionsystems.com/-/media/General-Dynamics/Satcom/PDF/Antennas/VSAT-Products/Technical-Documentation/Geometry-Drawings/4000-018.ashx?la=en&hash=864FD6C7D0DD61C43BF0A52E652437A7287CA102[/URL]</p><p></p><p>Prodelin always did guarantee only limited movement on their motorised dishes, I recall us trying well outside the recommended parameters when I was with you.</p></blockquote><p></p>
[QUOTE="Channel Hopper, post: 1082037, member: 175144"] That might assist, though the solution is to counterweight the dish. Hi Alpi :Y If you have an - analogue - ammeter then try looking at the peak current at motor start (along with the associated drop in voltage, which will be down to the ASC circuit falling down when it is needed most) Adapting the 3.7m with standard polarmount will consist of three spars - top/left/right - running back from near the ends of the existing supports (ribs), and careful addition of a cage where they meet behind the mount, with weights to compensate until you get reasonable motor engagement at the extremes. Unless you have the brace brackets installed, constructing three triangular braces across two of the rib bolt-holes will reduce potential distortion of the panels. Ideally the weight should be as far as possible behind the polarmount to keep the counterweight mass down, though practically it will be about double the distance from the reflector front to the motor gearbox, approximately 2.5 -3m. [URL unfurl="true"]https://gdmissionsystems.com/-/media/General-Dynamics/Satcom/PDF/Antennas/VSAT-Products/Technical-Documentation/Geometry-Drawings/4000-018.ashx?la=en&hash=864FD6C7D0DD61C43BF0A52E652437A7287CA102[/URL] Prodelin always did guarantee only limited movement on their motorised dishes, I recall us trying well outside the recommended parameters when I was with you. [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Dish motor less wear and tear
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