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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
Very poor reception 1.2m dish in Madrid
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<blockquote data-quote="dxsat" data-source="post: 434332" data-attributes="member: 193607"><p>Losing the default transponder between 5 and 8 p.m. is quite common in Spain, and is a sign that either the LNB is poor, or needs to have the skew setting changed.</p><p>Skew is much more critical on high band than the low band that 2D signals are on, and the default transponder 4 11778 V is the most sensitive to skew errors.</p><p>Another cause can be slight mis- alignment of the dish.</p><p>The Invacom universal (all -in-one) is only an average performer, which is why some people are disappointed. The models SNH-031, TWH-031 and QDH-031 are the LNBF models, and are for use in dishes up to 1.2m in fringe areas.</p><p>The models SNF-031, TWF-031 and QDF-031 are considerably better for weak signals, and the QDF-031 the best of all.</p><p>The reason for this is the feedhorn at the front of the LNB. The LNBF models have a small integrated feed, whereas the 'F' models have a C120 plate for attaching a separate feedhorn, which will provide a better match for a larger dish. Satellite signals are such high frequencies, they behave almost optically, so a matched feedhorn will focus the signals better just as a better quality lens on a telescope will focus weak light.</p><p></p><p>The old Panasonic you have is one of the slowest models ever made, but in common with the DSB 30 and 40 it had a very good tuner for weak signals.</p><p>The Thomson you bought is obviously worse. You could try the Pace Sky+ V3.</p><p>It's quite normal for signal strength to be reasonable, but with no quality, in the early evening where you are. The signal strength varies between LNBs.</p><p></p><p>Your remedy for all the problems is simple, however: fit a Quad Invacom QDF-031 with a Andrew/ ChannelMaster feed, and adjust the dish alignment (which is clearly out) and LNB skew using a digital meter. After this BBC One and ITV 1-4 will be receivable about 22 hours/ day. BBC One Channle Islands ?East should be 24 hours/ day.</p><p>BBC2/ C Beebies/ CBBC/ News24/ will be receivable mornings till about 11-12 am.</p></blockquote><p></p>
[QUOTE="dxsat, post: 434332, member: 193607"] Losing the default transponder between 5 and 8 p.m. is quite common in Spain, and is a sign that either the LNB is poor, or needs to have the skew setting changed. Skew is much more critical on high band than the low band that 2D signals are on, and the default transponder 4 11778 V is the most sensitive to skew errors. Another cause can be slight mis- alignment of the dish. The Invacom universal (all -in-one) is only an average performer, which is why some people are disappointed. The models SNH-031, TWH-031 and QDH-031 are the LNBF models, and are for use in dishes up to 1.2m in fringe areas. The models SNF-031, TWF-031 and QDF-031 are considerably better for weak signals, and the QDF-031 the best of all. The reason for this is the feedhorn at the front of the LNB. The LNBF models have a small integrated feed, whereas the 'F' models have a C120 plate for attaching a separate feedhorn, which will provide a better match for a larger dish. Satellite signals are such high frequencies, they behave almost optically, so a matched feedhorn will focus the signals better just as a better quality lens on a telescope will focus weak light. The old Panasonic you have is one of the slowest models ever made, but in common with the DSB 30 and 40 it had a very good tuner for weak signals. The Thomson you bought is obviously worse. You could try the Pace Sky+ V3. It's quite normal for signal strength to be reasonable, but with no quality, in the early evening where you are. The signal strength varies between LNBs. Your remedy for all the problems is simple, however: fit a Quad Invacom QDF-031 with a Andrew/ ChannelMaster feed, and adjust the dish alignment (which is clearly out) and LNB skew using a digital meter. After this BBC One and ITV 1-4 will be receivable about 22 hours/ day. BBC One Channle Islands ?East should be 24 hours/ day. BBC2/ C Beebies/ CBBC/ News24/ will be receivable mornings till about 11-12 am. [/QUOTE]
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Sky Digital BSkyB, Freesat & Saorsat support forum
Sky & Freesat fringe reception
Very poor reception 1.2m dish in Madrid
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