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DISH SETUP: Single sat, Multi-Sat & Motorised
Multi sat on a sky dish
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<blockquote data-quote="Fisty McB" data-source="post: 1120839" data-attributes="member: 389824"><p>The Sky dish in the image attached by the OP looks like a Zone 1 model. If that's the case, you might be able to get an offset LNB for Astra 1 at 19E and that's realistically about it, especially if the main focus of the dish is retained at 28E - the spacing between 19E & 13E will be too small with most LNBs and even then, the LNB offset for the 13E LNB (15 degrees) will likely give poor results particularly on some transponders, even if there's no LNB for 19E present. Likely to be the same using an offset LNB for Turksat (42E) on the same dish - a few transponders might come in but they'll be little rain fade protection.</p><p></p><p>If the OP is concerned by the aesthetics of a satellite dish "standing out" compared to a Sky minidish, it would be worthwhile considering getting a Zone 2 dish installed instead, which is much friendlier for multi-lnb setups in my experience. A common setup with this is to have the main focus at 19E with offsets at 28E and 13E - the 19E and 13E LNBs will almost certainly be touching together and it's best to get some of the more "narrow" 40mm universal LNBs** when doing this. 28E, even on the Astra 2G European beam will throw in plenty of signal strength to compensate for the dish offset, and 19E is similarly powerful - 13E is usually the (slightly) weaker of the three but if done properly should get all transponders in most parts of England. Those three satellite positions together should give you a lot of what is broadcast above the European skies and a good place to start at before potentially going bigger (e.g. further multi-lnb setups or a motorised system).</p><p></p><p>Beyond a Sky Zone 2 dish, any multi-lnb setup really needs to start at 80cm or bigger to help compensate for the loss of signal receiving a satellite at an offset-from-focus position even among the more powerful birds in the Clarke Belt. My own rule-of-thumb/experience is that at such a regular offset dish size, up to +/- 10 degrees from the focus position will usually be "okay" for an offset for a reasonably powered satellite - beyond 10 degrees, the offset losses start to rise more quickly the further you move away from the focus position. For example, where I live (County Tyrone) I presently have an 80cm dish focused on 13E - this has four Ku Band LNBs aimed at 23.5E, 19E, 13E and 9E (though the 9E LNB is a bit of a struggle as it's tight against the 13E LNB and likely isn't in an optimal offset position) - 5E is also a possible option, but I'd either need a very slim LNB or leave out 9E altogether.</p><p></p><p><span style="font-size: 12px"><em>** I would have previously recommended Inverto Eco LNBs (the ones with the green cap) for this but I'm not sure Inverto make these any more.</em></span></p></blockquote><p></p>
[QUOTE="Fisty McB, post: 1120839, member: 389824"] The Sky dish in the image attached by the OP looks like a Zone 1 model. If that's the case, you might be able to get an offset LNB for Astra 1 at 19E and that's realistically about it, especially if the main focus of the dish is retained at 28E - the spacing between 19E & 13E will be too small with most LNBs and even then, the LNB offset for the 13E LNB (15 degrees) will likely give poor results particularly on some transponders, even if there's no LNB for 19E present. Likely to be the same using an offset LNB for Turksat (42E) on the same dish - a few transponders might come in but they'll be little rain fade protection. If the OP is concerned by the aesthetics of a satellite dish "standing out" compared to a Sky minidish, it would be worthwhile considering getting a Zone 2 dish installed instead, which is much friendlier for multi-lnb setups in my experience. A common setup with this is to have the main focus at 19E with offsets at 28E and 13E - the 19E and 13E LNBs will almost certainly be touching together and it's best to get some of the more "narrow" 40mm universal LNBs** when doing this. 28E, even on the Astra 2G European beam will throw in plenty of signal strength to compensate for the dish offset, and 19E is similarly powerful - 13E is usually the (slightly) weaker of the three but if done properly should get all transponders in most parts of England. Those three satellite positions together should give you a lot of what is broadcast above the European skies and a good place to start at before potentially going bigger (e.g. further multi-lnb setups or a motorised system). Beyond a Sky Zone 2 dish, any multi-lnb setup really needs to start at 80cm or bigger to help compensate for the loss of signal receiving a satellite at an offset-from-focus position even among the more powerful birds in the Clarke Belt. My own rule-of-thumb/experience is that at such a regular offset dish size, up to +/- 10 degrees from the focus position will usually be "okay" for an offset for a reasonably powered satellite - beyond 10 degrees, the offset losses start to rise more quickly the further you move away from the focus position. For example, where I live (County Tyrone) I presently have an 80cm dish focused on 13E - this has four Ku Band LNBs aimed at 23.5E, 19E, 13E and 9E (though the 9E LNB is a bit of a struggle as it's tight against the 13E LNB and likely isn't in an optimal offset position) - 5E is also a possible option, but I'd either need a very slim LNB or leave out 9E altogether. [SIZE=3][I]** I would have previously recommended Inverto Eco LNBs (the ones with the green cap) for this but I'm not sure Inverto make these any more.[/I][/SIZE] [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
Multi sat on a sky dish
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