| Line | |
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| 1 | ; BCRA Grade 3 specification file |
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| 2 | |
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| 3 | ; tape error |
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| 4 | ; 95.44% of readings are within 0.5m (2 S.D.) |
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| 5 | *sd length 0.25 metres |
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| 6 | |
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| 7 | ; compass error |
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| 8 | ; 95.44% of readings are within 2.5 degrees (2 S.D.) |
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| 9 | *sd bearing backbearing 1.25 degrees |
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| 10 | |
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| 11 | ; clino error |
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| 12 | ; 95.44% of readings are within 2.5 degrees (2 S.D.) |
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| 13 | *sd gradient backgradient 1.25 degrees |
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| 14 | |
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| 15 | ; station position error |
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| 16 | ; 95.44% of positions are within 0.5m (2 S.D.) |
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| 17 | *sd position 0.25 metres |
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