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<blockquote data-quote="Channel Hopper" data-source="post: 1063787" data-attributes="member: 175144">Turns out it was a change in LNB skew (noticable in the main at the 10747 MHz frequency, where there are two transponders on opposite polarities), so NRK on vertical comes in strong owing to the footprint above London, but the TV2 HD (Zebra&nbsp; etc.) on horizontal is completely lost in the noise of the opposite .Other frequencies specifically for Denmark on the same polarity suffered with breakup when the cloud cover is above 5/8, nowhere near as much as the one mentioned, but break up in this area is unacceptable on a 1m dish.<a href="http://www.lyngsat-maps.com/footprints/Thor-6-K1.html" target="_blank">Thor 6 at 0.8°W - LyngSat Maps</a>The reason for the shift in skew turns out to be a squirrel shoving its nuts (oooer missus) into the cavity (ooooer missus)) at the front of the Triax boom arm, dislodging the LNB in the process by about 5 degrees from true centre.A service call to ensure the dish alignment is OK,&nbsp; plus twisting the LNB to the correct skew settings and some putty in the holes (one up front and the two at the rear where the wingnut goes - ooooer) has fixed it for now. Not sure how to get the rodent to understand not to do it again though, except by extreme measures.</blockquote>

[QUOTE="Channel Hopper, post: 1063787, member: 175144"] Turns out it was a change in LNB skew (noticable in the main at the 10747 MHz frequency, where there are two transponders on opposite polarities), so NRK on vertical comes in strong owing to the footprint above London, but the TV2 HD (Zebra etc.) on horizontal is completely lost in the noise of the opposite . Other frequencies specifically for Denmark on the same polarity suffered with breakup when the cloud cover is above 5/8, nowhere near as much as the one mentioned, but break up in this area is unacceptable on a 1m dish. [URL='http://www.lyngsat-maps.com/footprints/Thor-6-K1.html']Thor 6 at 0.8°W - LyngSat Maps[/URL] The reason for the shift in skew turns out to be a squirrel shoving its nuts (oooer missus) into the cavity (ooooer missus)) at the front of the Triax boom arm, dislodging the LNB in the process by about 5 degrees from true centre. A service call to ensure the dish alignment is OK, plus twisting the LNB to the correct skew settings and some putty in the holes (one up front and the two at the rear where the wingnut goes - ooooer) has fixed it for now. Not sure how to get the rodent to understand not to do it again though, except by extreme measures. [/QUOTE]

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