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<blockquote data-quote="brother9" data-source="post: 1027116" data-attributes="member: 411346">This week's gales had moved the 110cm dish, which had not been tightly fixed because of pending fine-tuning. So, during a brief dry spell I went up onto the roof and readjusted the dish by hand, then tightened the bolts properly. I noticed the arm being a bit loose. A bad fit. Maybe I have to tighten some bolts. But there is a stone under it anyway (see pictures). I moved it sideways a bit. Maybe the LNB was not looking at the right spot on the dish....I noticed downstairs that (freq)V and H27500 gave same strong signal!? So I altered the skew. And now I got ALL frequencies except 11491 and 11496. Did I see a brief signal on both?? Which prompts the following questions:Watching satellite 30W means that its axis of rotation is 30° off clockwise. To compensate the LNB, which is facing the dish, should be skewed anti-clockwise when viewing the satellite. Correct?Skew does not seem to be very critical, 23.7° according to lyngsat.The signals seem to have a threshold: quality below abt 45/50% and the indication drops to zero. What determines this threshold? LNB sensitivity? Tuner's sensitivity? Something else?11503 (BOM-TV), 11498 and 11491 are close together, so when BOM is stronger, can I then expect an increased chance of getting the others?Stations on 10770, never before found, are encrypted, but ALL have audible English sound! I briefly thought that they could be on another satellite, but they had adverts in Spanish, so even 10770 is now scanned successfully.</blockquote>

[QUOTE="brother9, post: 1027116, member: 411346"] This week's gales had moved the 110cm dish, which had not been tightly fixed because of pending fine-tuning. So, during a brief dry spell I went up onto the roof and readjusted the dish by hand, then tightened the bolts properly. I noticed the arm being a bit loose. A bad fit. Maybe I have to tighten some bolts. But there is a stone under it anyway (see pictures). I moved it sideways a bit. Maybe the LNB was not looking at the right spot on the dish.... I noticed downstairs that (freq)V and H27500 gave same strong signal!? So I altered the skew. And now I got ALL frequencies except 11491 and 11496. Did I see a brief signal on both?? Which prompts the following questions: Watching satellite 30W means that its axis of rotation is 30° off clockwise. To compensate the LNB, which is facing the dish, should be skewed anti-clockwise when viewing the satellite. Correct? Skew does not seem to be very critical, 23.7° according to lyngsat. The signals seem to have a threshold: quality below abt 45/50% and the indication drops to zero. What determines this threshold? LNB sensitivity? Tuner's sensitivity? Something else? 11503 (BOM-TV), 11498 and 11491 are close together, so when BOM is stronger, can I then expect an increased chance of getting the others? Stations on 10770, never before found, are encrypted, but ALL have audible English sound! I briefly thought that they could be on another satellite, but they had adverts in Spanish, so even 10770 is now scanned successfully. [/QUOTE]

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