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<blockquote data-quote="brother9" data-source="post: 1027333" data-attributes="member: 411346">Threshold.Last night (and I mean NIGHT…) BOM (11503H1667) signal gradually increased from 78% to 90%. Then I started to watch that signal all the time, and towards the morning it was 96%!! But switching to 11491 and 11496 did not yield a signal.So question a) is Castilla La Mancha 11491 an all-night signal?b) I read on Triax.com about their LNB, which has &quot;Image rejection (min.)&nbsp; 45 dB”. What does that mean? Does the LNB not relay signals below a certain threshold? Is that the reason why I never see signals with e.g. 20-40% quality?So there could actually be a signal on 11491, but it does not get through?c) I noticed a very brief signal on 11491 SIX times. Although it is VERY brief, I am not imagining it (I hope…LOL). Once I saw 70%.However, maybe –just maybe- it could be a switching error/characteristic of the tuner? Ideas are welcome.Depth of dish = 9 cm. Calculated f=76.2 cm. Correct? Measured dish-LNB= 72 cm.</blockquote>

[QUOTE="brother9, post: 1027333, member: 411346"] Threshold. Last night (and I mean NIGHT…) BOM (11503H1667) signal gradually increased from 78% to 90%. Then I started to watch that signal all the time, and towards the morning it was 96%!! But switching to 11491 and 11496 did not yield a signal. So question a) is Castilla La Mancha 11491 an all-night signal? b) I read on Triax.com about their LNB, which has "Image rejection (min.) 45 dB”. What does that mean? Does the LNB not relay signals below a certain threshold? Is that the reason why I never see signals with e.g. 20-40% quality? So there could actually be a signal on 11491, but it does not get through? c) I noticed a very brief signal on 11491 SIX times. Although it is VERY brief, I am not imagining it (I hope…LOL). Once I saw 70%. However, maybe –just maybe- it could be a switching error/characteristic of the tuner? Ideas are welcome. Depth of dish = 9 cm. Calculated f=76.2 cm. Correct? Measured dish-LNB= 72 cm. [/QUOTE]

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