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DISH SETUP: Single sat, Multi-Sat & Motorised
Setting up prodelin 2.4m dish - advice needed
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<blockquote data-quote="Robbo" data-source="post: 747134" data-attributes="member: 256551"><p>So you are near Serbia?</p><p></p><p>Your main challenge will be to get 28E then, I imagine, and if you want Astra 2D even more so. You are going to have to play around a bit to see how well you get that, and if you get it well enough with the 28E LNB at the focus how much you can sacrifice if you move it off focus. Because to get 28E to 5 W may be a struggle otherwise. As ideally with a multi lnb setup, you would focus the dish approximately in the middle of the sats, so in your case at approx 13E. But I fear, that if you did that, the dish would not give enough signal to get you 28E. Might be a reasonable starting point, or maybe 16E, as that should be very strong in your area.</p><p></p><p>As for figuring out where the LNBs go, you know, you can just stand there with an LNB in your hand, and hold it where you think it might be.</p><p></p><p>Whether Standard LNBs would work well enough depends on a few factors, one being how strong a particular satellite is, and secondly, how much of an impovement using a matche dfedhorn gives you, over a standard LNB. You can check that on a weaker satellite at focus. You need to do a bit of experimentation.</p><p></p><p></p><p>Oh, and the bar length.. it is based on the azimuth spread of the satellites you want. It can be roughly calculated if you measure the distance from the dish to the focal LNB. Say distance from dish face to LNB is d, then for an angular separation of S degrees, the linear separation will be approx d x Tan(S).</p><p>Basic trig.</p></blockquote><p></p>
[QUOTE="Robbo, post: 747134, member: 256551"] So you are near Serbia? Your main challenge will be to get 28E then, I imagine, and if you want Astra 2D even more so. You are going to have to play around a bit to see how well you get that, and if you get it well enough with the 28E LNB at the focus how much you can sacrifice if you move it off focus. Because to get 28E to 5 W may be a struggle otherwise. As ideally with a multi lnb setup, you would focus the dish approximately in the middle of the sats, so in your case at approx 13E. But I fear, that if you did that, the dish would not give enough signal to get you 28E. Might be a reasonable starting point, or maybe 16E, as that should be very strong in your area. As for figuring out where the LNBs go, you know, you can just stand there with an LNB in your hand, and hold it where you think it might be. Whether Standard LNBs would work well enough depends on a few factors, one being how strong a particular satellite is, and secondly, how much of an impovement using a matche dfedhorn gives you, over a standard LNB. You can check that on a weaker satellite at focus. You need to do a bit of experimentation. Oh, and the bar length.. it is based on the azimuth spread of the satellites you want. It can be roughly calculated if you measure the distance from the dish to the focal LNB. Say distance from dish face to LNB is d, then for an angular separation of S degrees, the linear separation will be approx d x Tan(S). Basic trig. [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
Setting up prodelin 2.4m dish - advice needed
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