EUMETCast SNR & Quality |
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Main PC - Feeenix SkyStar V2.6D PCI card V4.4.1 drivers SNR dB x 10 Signal Quality % |
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Test PC - Hydra SkyStar V2.6B PCI card V4.5.1 drivers SNR dB x 10 Signal Quality % |
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Backup PC - Stamsund SkyStar V2.3 PCI card V4.5.1 drivers SNR dB x 10 Signal Quality % |
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Vista PC - Gemini Dexatek DVB USB box V6.1.0.1 drivers (06/07/2007) Strength % Quality % |
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Other periods: day week month year
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This data is taken from my Main,
Test and Backup PCs, which have SkyStar2 V2.6B/D PCI cards. 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 PC is fed from the second output of the LNB, and the percent Strength and Quality reports from the Dexatek USB box are plotted. |
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| 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, so that one PC is definitely in control. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||