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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Feedhorns with Polarotors....
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<blockquote data-quote="ChipButty" data-source="post: 5843" data-attributes="member: 175167"><p>I'm currently in the middle of migrating my system to include Digital, I'll detail my complete system first then I'll explain what are my current problems :</p><p></p><p>Echostar 1.2m Offset Dish</p><p>Jaeger H-H Mount</p><p>Gardiner 0.8db LNB (flange type)</p><p>Feedhorn with mechanical polarisor</p><p>Echostar AD3000IPVA</p><p>Panasonic dsb-30 digibox (sitting on the digital out of the Echostar)</p><p></p><p>OK then, my Sky access is not the best (no vertical channels, north beam drop outs etc etc), but I'm not so worried about this at the moment as I would like to upgrade my LNB and cables, then re-align my dish first, then see what I get after.</p><p></p><p>Now, the problem starts. I go to my friendly neighbourhood Satellite Shop in Madrid (Spain) and the guy sells me a MTI Dual Output C120 0.6db LNB. The idea being that the Sky Box can control the polarisation of its part of the LNB and the Echostar will control the optimum skew angle (via the feedhorn) when on 28.2E and all the other satellites the Echostar takes care of. So then, I arrive home and my existing feedhorn doesn't fit (screwholes don't match) !</p><p></p><p>Q1: Is the MTI LNB any good ? I would appreciate any other recommendations. </p><p>Q2: Am I right in thinking there are two types of flange LNB's C120 and WR75 ??</p><p></p><p>So, I ask the shop to get me a new feedhorn with integrated polarotor that is suitable for my dish. And, well, to cut a long story short, they can't get one, nor can the next shop or the next shop......</p><p>Therefore....</p><p></p><p>Q3: Can anyone tell me where I can get a feedhorn with polarotor to fit a C120 type flange ?</p><p>Q4: Do I just make an adaptor and hope for the best ? </p><p></p><p>Or shouldn't I worry about the skew functionality anymore (the whole reason for having a polarotor in the first place) and just bolt on a LNB with integrated feedhorn ??</p><p></p><p>Any feedback would be highly appreciated..</p><p></p><p>Thanks in advance</p></blockquote><p></p>
[QUOTE="ChipButty, post: 5843, member: 175167"] I'm currently in the middle of migrating my system to include Digital, I'll detail my complete system first then I'll explain what are my current problems : Echostar 1.2m Offset Dish Jaeger H-H Mount Gardiner 0.8db LNB (flange type) Feedhorn with mechanical polarisor Echostar AD3000IPVA Panasonic dsb-30 digibox (sitting on the digital out of the Echostar) OK then, my Sky access is not the best (no vertical channels, north beam drop outs etc etc), but I'm not so worried about this at the moment as I would like to upgrade my LNB and cables, then re-align my dish first, then see what I get after. Now, the problem starts. I go to my friendly neighbourhood Satellite Shop in Madrid (Spain) and the guy sells me a MTI Dual Output C120 0.6db LNB. The idea being that the Sky Box can control the polarisation of its part of the LNB and the Echostar will control the optimum skew angle (via the feedhorn) when on 28.2E and all the other satellites the Echostar takes care of. So then, I arrive home and my existing feedhorn doesn't fit (screwholes don't match) ! Q1: Is the MTI LNB any good ? I would appreciate any other recommendations. Q2: Am I right in thinking there are two types of flange LNB's C120 and WR75 ?? So, I ask the shop to get me a new feedhorn with integrated polarotor that is suitable for my dish. And, well, to cut a long story short, they can't get one, nor can the next shop or the next shop...... Therefore.... Q3: Can anyone tell me where I can get a feedhorn with polarotor to fit a C120 type flange ? Q4: Do I just make an adaptor and hope for the best ? Or shouldn't I worry about the skew functionality anymore (the whole reason for having a polarotor in the first place) and just bolt on a LNB with integrated feedhorn ?? Any feedback would be highly appreciated.. Thanks in advance [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Feedhorns with Polarotors....
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