| Special Issues
at Low frequencies: Calibration |
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| • | General |
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| – | Based on
stability (over days and weeks) |
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| • | Stability is
achieved by buried electronics and transmission |
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| lines |
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| – | Stability allows
observation of calibrators outside sun |
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| observing time. |
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| – | Calibration
provides complex gains for each antenna |
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| and frequency
valid for days and weeks. |
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