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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Black Ultra Twin & Single LNB comparisons
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<blockquote data-quote="timo_w2s" data-source="post: 847049" data-attributes="member: 196043"><p>I did a quick unscientific test to compare a few twin and single Inverto Black Ultra LNBs, posting the results here just in case it's of interest or use to someone.</p><p></p><p>Signal quality for a 60cm dish in Helsinki looking at Astra 1 (19.2E) on a Dr HD F15 for two twin output and three single output LNBs.</p><p></p><p> 10.729V 11.244H 12.728V</p><p>-----------------------------------</p><p>TWIN 14.4dB 12.5dB 13.5dB</p><p>TWIN* 14.1dB 12.6dB 13.7dB</p><p>SINGLE 14.7dB 12.5dB 10.2dB</p><p>SINGLE 14.4dB 12.3dB 9.8dB</p><p>SINGLE 14.7dB 12.5dB 9.5dB</p><p></pre></p><p><p>I should have done a few more frequencies but I didn't have much time but from this small bit of data it looks like the twin output LNBs work significantly better at the high end while the singles all dropped off a few dB. The singles also seemed to work very slightly better on the lower band.</p><p></p><p>*The second Twin in the list had been used for 18 months, the other LNBs where all brand new.</p></blockquote><p></p>
[QUOTE="timo_w2s, post: 847049, member: 196043"] I did a quick unscientific test to compare a few twin and single Inverto Black Ultra LNBs, posting the results here just in case it's of interest or use to someone. Signal quality for a 60cm dish in Helsinki looking at Astra 1 (19.2E) on a Dr HD F15 for two twin output and three single output LNBs. 10.729V 11.244H 12.728V ----------------------------------- TWIN 14.4dB 12.5dB 13.5dB TWIN* 14.1dB 12.6dB 13.7dB SINGLE 14.7dB 12.5dB 10.2dB SINGLE 14.4dB 12.3dB 9.8dB SINGLE 14.7dB 12.5dB 9.5dB </pre> <p>I should have done a few more frequencies but I didn't have much time but from this small bit of data it looks like the twin output LNBs work significantly better at the high end while the singles all dropped off a few dB. The singles also seemed to work very slightly better on the lower band. *The second Twin in the list had been used for 18 months, the other LNBs where all brand new. [/QUOTE]
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Satellite TV receivers & systems support forums
DISH SETUP: Single sat, Multi-Sat & Motorised
Black Ultra Twin & Single LNB comparisons
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