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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: 1080620" data-attributes="member: 414458"><p>[USER=312276]@RimaNTSS[/USER] </p><p>A PFA is normally equipped with a Corotor but this option is not good for me because KU band 's reception would have a loss of aprox 30% .<img src="/styles/default/xenforo/smilies/angry.png" class="smilie" loading="lazy" alt=":angry:" title="Angry :angry:" data-shortname=":angry:" /></p><p>You're right when saying an Offset can be easily adapted for multifeed but in Asia and Brazil (where wimax / 5G interferences are big problem for C Band's reception) many Dxer use a PFA (low F/D RATIO) + multifeed system + special filtered Lnbs !<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool :cool:" loading="lazy" data-shortname=":cool:" /></p><p></p><p>[USER=175144]@Channel Hopper[/USER] </p><p>My Smr 1224 has no EL and maximum weight is aprox 40 kg (my Gibertini 150 weights 25kg)... a limit in mounting a larger antenna on it at the roof of a building ! </p><p>Perhaps Laminas AS-1800 could be mounted on 1224 but no real improvement in C band due to small antenna 's diameter ...<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite53" alt=":confused" title="Confused :confused" loading="lazy" data-shortname=":confused" /></p><p>Finally a problem with Smr 1224 and reed sensors is mis-counting in conjunction with V-box …. many times I've to shift V-box ...</p><p></p><p>Titanium Asc1 is ok to use in disecq 1.2 with my Dreambox 920 uhd and I'll test pulsi syncronization with 1224 all around Clarke belt!</p><p></p><p>Which kinds of modifications for ASC1 ?</p><p></p><p><strong>In a wimax contest as mine the effective range of reachable signals in C band could be extended to 3,7-4,8 Ghz ….</strong></p><p><strong>this means a larger antenna (minimum 2,4 PF) and a special receiving equipment</strong></p><p><strong>- Feed (Av-comm )</strong></p><p><strong>- waveguide </strong></p><p><strong>- polarotor Wideband (Chaparral?)</strong></p><p><strong>- 1 filtered Lnb for 3,4-4,8 Ghz (Smw ? Norsat? Greatek?)</strong></p><p><strong></strong></p><p><strong>Using Egis in Polarmount mode, I could position C Band feed a little bit lower or higher than Ku band feed and Egis control of declination would make possible auto-focus of C Band Lnb to reach maximum of signals.</strong></p><p> <strong></strong></p><p>The up-defined solution is probably better than adopting a Feed inserted in OMT transition and multiple Lnb's to reach signals in different polarities (this causes storing several positions in Egis controller and Titanium).</p><p></p><p><u>Egis robot in Polarmount mode makes possible this system:</u></p><p>- single Feed for Ku band with no need of a polarotor but only a Voltage Switching Lnb for polarity control (V/H) </p><p>- single feed for C Band (uo-defined solution = waveguide + polarotor + 1 Voltage Switching filtered Lnb ) to reach lower SR by using declination to auto-focus </p><p></p><p>What about my statement?</p><p></p><p>"My plan is to use <u>EGIS robot in polarmount mode</u>, i.e. welded bracket at the masttop inclined according to my latitude (aprox. 45°) and a bracket in the back of the antenna with an inclination of at least 10 degrees plus an angle of declination (in order to reach sats at the extremes with an elevation lower than the minimum 10 degrees provided by the EGIS).</p><p> Something similar to Dx Bozoth adapter for EGIS."</p><p><strong></strong></p><p><strong>Any suggestions about right mounting solution and selected components will be welcome!</strong></p><p></p><p>Thanks a lot</p></blockquote><p></p>
[QUOTE="mirko73, post: 1080620, member: 414458"] [USER=312276]@RimaNTSS[/USER] A PFA is normally equipped with a Corotor but this option is not good for me because KU band 's reception would have a loss of aprox 30% .:angry: You're right when saying an Offset can be easily adapted for multifeed but in Asia and Brazil (where wimax / 5G interferences are big problem for C Band's reception) many Dxer use a PFA (low F/D RATIO) + multifeed system + special filtered Lnbs !:cool: [USER=175144]@Channel Hopper[/USER] My Smr 1224 has no EL and maximum weight is aprox 40 kg (my Gibertini 150 weights 25kg)... a limit in mounting a larger antenna on it at the roof of a building ! Perhaps Laminas AS-1800 could be mounted on 1224 but no real improvement in C band due to small antenna 's diameter ...:confused Finally a problem with Smr 1224 and reed sensors is mis-counting in conjunction with V-box …. many times I've to shift V-box ... Titanium Asc1 is ok to use in disecq 1.2 with my Dreambox 920 uhd and I'll test pulsi syncronization with 1224 all around Clarke belt! Which kinds of modifications for ASC1 ? [B]In a wimax contest as mine the effective range of reachable signals in C band could be extended to 3,7-4,8 Ghz …. this means a larger antenna (minimum 2,4 PF) and a special receiving equipment - Feed (Av-comm ) - waveguide - polarotor Wideband (Chaparral?) - 1 filtered Lnb for 3,4-4,8 Ghz (Smw ? Norsat? Greatek?) Using Egis in Polarmount mode, I could position C Band feed a little bit lower or higher than Ku band feed and Egis control of declination would make possible auto-focus of C Band Lnb to reach maximum of signals. [/B] The up-defined solution is probably better than adopting a Feed inserted in OMT transition and multiple Lnb's to reach signals in different polarities (this causes storing several positions in Egis controller and Titanium). [U]Egis robot in Polarmount mode makes possible this system:[/U] - single Feed for Ku band with no need of a polarotor but only a Voltage Switching Lnb for polarity control (V/H) - single feed for C Band (uo-defined solution = waveguide + polarotor + 1 Voltage Switching filtered Lnb ) to reach lower SR by using declination to auto-focus What about my statement? "My plan is to use [U]EGIS robot in polarmount mode[/U], i.e. welded bracket at the masttop inclined according to my latitude (aprox. 45°) and a bracket in the back of the antenna with an inclination of at least 10 degrees plus an angle of declination (in order to reach sats at the extremes with an elevation lower than the minimum 10 degrees provided by the EGIS). Something similar to Dx Bozoth adapter for EGIS." [B] Any suggestions about right mounting solution and selected components will be welcome![/B] Thanks a lot [/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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