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DISH SETUP: Single sat, Multi-Sat & Motorised
Eutelsat 10/9 reception - or not
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<blockquote data-quote="brother9" data-source="post: 1114491" data-attributes="member: 411346"><p>I monitored the strength ("Quality") of various tx: stronger ones and weaker ones. I noticed that Zagros, 4E, ORTB, RTS, AFN bars were weak or NOT giving an image before 6 pm local. Getting stronger later, even giving a good image at 7.30 local. Signals getting stronger towards midnight.</p><p>MY explanation: Satellite 10E is above equator where (on Earth) sun rises 05.20 UTC and sets 17.20 UTC. Satellite is in HOT sunshine during that time, in Earth's shadow 17.20 to 5.20 and cooling off. Exactly the period in which signals get stronger and later disappear again....</p><p>Is my explanation right? Then why did I not notice (!) that with any of the 5 other satellites??</p><p>Of course the (black....) LNB is ALSO getting hot and later cooling after sunset in parallel with the satellite.....</p><p>Does anyone know what is the effect of (low and high) temperature on performance of LNB?</p><p>The rail with LNBs is fixed, tilted at about 8°, so simulating the ARC of satellites (28E to 9E). ONLY LNB for 10/9E is adjusted for better reception, but it is ever so critical.....</p><p>What is effect of tilting LNB up or down facing the dish? What is effect of twisting LNB sideways (L or R) a bit?</p><p>What is the effect of moving LNB towards or away from the dish a bit?</p><p>My tests give no clear answers.</p><p>What do you mean by "LNBs tend to walk along the rail"?? Please explain, as mine are screwed fixed - of course.</p><p>Thank you.</p></blockquote><p></p>
[QUOTE="brother9, post: 1114491, member: 411346"] I monitored the strength ("Quality") of various tx: stronger ones and weaker ones. I noticed that Zagros, 4E, ORTB, RTS, AFN bars were weak or NOT giving an image before 6 pm local. Getting stronger later, even giving a good image at 7.30 local. Signals getting stronger towards midnight. MY explanation: Satellite 10E is above equator where (on Earth) sun rises 05.20 UTC and sets 17.20 UTC. Satellite is in HOT sunshine during that time, in Earth's shadow 17.20 to 5.20 and cooling off. Exactly the period in which signals get stronger and later disappear again.... Is my explanation right? Then why did I not notice (!) that with any of the 5 other satellites?? Of course the (black....) LNB is ALSO getting hot and later cooling after sunset in parallel with the satellite..... Does anyone know what is the effect of (low and high) temperature on performance of LNB? The rail with LNBs is fixed, tilted at about 8°, so simulating the ARC of satellites (28E to 9E). ONLY LNB for 10/9E is adjusted for better reception, but it is ever so critical..... What is effect of tilting LNB up or down facing the dish? What is effect of twisting LNB sideways (L or R) a bit? What is the effect of moving LNB towards or away from the dish a bit? My tests give no clear answers. What do you mean by "LNBs tend to walk along the rail"?? Please explain, as mine are screwed fixed - of course. Thank you. [/QUOTE]
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DISH SETUP: Single sat, Multi-Sat & Motorised
Eutelsat 10/9 reception - or not
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