		Main PC - Feeenix SkyStar V2.6D PCI card V4.4.1 drivers SNR dB x 10 Signal Quality %
		Test PC - Hydra SkyStar V2.6B PCI card V4.5.1 drivers SNR dB x 10 Signal Quality %
		Backup PC - Stamsund SkyStar V2.6D PCI card (after 2011-Jan-24) V4.5.1 drivers SNR dB x 10 Signal Quality %
		Backup PC - Stamsund SkyStar V2.6D PCI card (after 2011-Jan-24) V4.5.1 drivers B.E.R. (Bit Error Rate)
		Vista PC - Gemini SkyStar USB 2 box (after 2012-Jan-18) V4.5.1.0 drivers SNR dB x 10 Signal Quality %
		PC Alta DVB World box V6.1.0.2 drivers (24/07/2007) Strength % Quality %

Other periods: day week month year

LNB
O/P 1 LNB
O/P 2

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* Splitter * Splitter

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Main
PC Splitter Vista
PC i5-760
PC

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Test
PC Backup
PC

This data is taken from my Main, Test and Backup PCs, which have SkyStar2 V2.6B/D. The main PC is fed via one splitter from one dual-output LNB feed, and the Test and Backup PCs are fed via two splitters (normally I would avoid splitters, preferring a dual-output LNB). The plot shows snapshots of the snapshots of the Signal Quality (green) and SNR (blue) readings taken every five minutes. To use a common scale, the SNR plotted is ten times the true value, so that the SNR scale is 0..12.0dB. Times are in UTC.
The Vista and Intel i5-760 PCs are fed from the second output of the LNB, and the percent Strength and Quality reports from the Dexatek and DVB World USB boxes are plotted.
* = DC path

Note: be particularly careful when using DC-pass splitters on Eurobird-9, where the 22KHz band-switch signal from two receivers may cancel out, resulting in intermittent signal! It's best to use the ones where there is just one DC-pass path, shown by * above, so that one PC is definitely in control of the LNB.

EUMETCast SNR & Quality