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DISH SETUP: Single sat, Multi-Sat & Motorised
Egis in polarmount and multifeed system for ku and c band
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<blockquote data-quote="mirko73" data-source="post: 1080643" data-attributes="member: 414458"><p>I've published issues in a detailed manner for the first time in this forum because many of you are really experts on advanced satellite reception systems and<strong> my project is to assemble a no-compromise professional system for full reception in Ku e C Band with a single antenna at the roof top of a buiding in Milan - Italy</strong> (find attached some pictures of it)!</p><p></p><p>In this location where wimax /5G interferences seems to be increasing in range 3,4-3,7 Ghz , I'd like to receive C Band in extended range (3,7-4,8 Ghz) by a "tailored made" system that is to say selecting single component really useful to obtain effective results.</p><p></p><p>Apart from wimax problems, <u>my actual system suffers for several limitations </u>:</p><p>- Offset antenna based on a single Ku feed Inverto Black Ultra but exposed to wind force</p><p>- SMR 1224 H-H not really well performing (mis-counting of reed sensors , cantilever angle of attack with respect to the rear of the antenna and possible problems during wind flurries</p><p></p><p><strong>Though an Offset seems to be easier for multifeed, I think a PFA to be better solution to adopt for multiband reception:</strong></p><p><strong>- F/D ratio of 0,30 aprox.</strong></p><p><strong>- more wind protection.</strong></p><p><strong>- One Feed on primary focus (KU band)</strong></p><p><strong>- another Feed slightly out-of-focus (C Band) with single Lnb PLL with filters for rejection of interferences</strong></p><p><strong>- waveguide + polarotor useful to make C band signals (circular and linear) coexist on a single Lnb</strong></p><p></p><p>You must also know that part of my spare time is spent in analyze, document myself about technical sat equipment but also in feeding research for professional purposes!</p><p></p><p>Regarding Egis robot my impression is that details as 180 degree azimuth range, elevation/declination control , auto-focus, super-search and other functions included a solid structure of the unit are synonimous of professional system!</p><p></p><p>As I said Egis mounted in Polarmount mode (find attached a picture of it) with the support for Multifeed ( C Band and Ku Band) seems to be most attractive solution to make two bands coexist on a single antenna.</p><p></p><p>Eventually, in case of practical limitations, I'd have no foreclosure to use Egis in classic mode as a bi-axial rotor .</p><p></p><p>About AJAK H-H motor I don't know it and hoping much more performing of Smr 1224 I'm not convinced it is really capable of 180 degrees of azimuth range all over Clarke Belt (also inclined satellites and low SR frequencies).</p><p></p><p>Apologizing if I have gone on, thank you in advance for any recommendations able to contribute to the success of my project!</p></blockquote><p></p>
[QUOTE="mirko73, post: 1080643, member: 414458"] I've published issues in a detailed manner for the first time in this forum because many of you are really experts on advanced satellite reception systems and[B] my project is to assemble a no-compromise professional system for full reception in Ku e C Band with a single antenna at the roof top of a buiding in Milan - Italy[/B] (find attached some pictures of it)! In this location where wimax /5G interferences seems to be increasing in range 3,4-3,7 Ghz , I'd like to receive C Band in extended range (3,7-4,8 Ghz) by a "tailored made" system that is to say selecting single component really useful to obtain effective results. Apart from wimax problems, [U]my actual system suffers for several limitations [/U]: - Offset antenna based on a single Ku feed Inverto Black Ultra but exposed to wind force - SMR 1224 H-H not really well performing (mis-counting of reed sensors , cantilever angle of attack with respect to the rear of the antenna and possible problems during wind flurries [B]Though an Offset seems to be easier for multifeed, I think a PFA to be better solution to adopt for multiband reception: - F/D ratio of 0,30 aprox. - more wind protection. - One Feed on primary focus (KU band) - another Feed slightly out-of-focus (C Band) with single Lnb PLL with filters for rejection of interferences - waveguide + polarotor useful to make C band signals (circular and linear) coexist on a single Lnb[/B] You must also know that part of my spare time is spent in analyze, document myself about technical sat equipment but also in feeding research for professional purposes! Regarding Egis robot my impression is that details as 180 degree azimuth range, elevation/declination control , auto-focus, super-search and other functions included a solid structure of the unit are synonimous of professional system! As I said Egis mounted in Polarmount mode (find attached a picture of it) with the support for Multifeed ( C Band and Ku Band) seems to be most attractive solution to make two bands coexist on a single antenna. Eventually, in case of practical limitations, I'd have no foreclosure to use Egis in classic mode as a bi-axial rotor . About AJAK H-H motor I don't know it and hoping much more performing of Smr 1224 I'm not convinced it is really capable of 180 degrees of azimuth range all over Clarke Belt (also inclined satellites and low SR frequencies). Apologizing if I have gone on, thank you in advance for any recommendations able to contribute to the success of my project! [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
Egis in polarmount and multifeed system for ku and c band
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