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Thread: GPS as an approach aid
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Old 23rd Jul 2007, 20:51
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reynoldsno1
 
Join Date: Jan 2000
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Raw GPS was used as an approach aid when S/A was on ... the tolerances used for the design of the approach encompassed the S/A induced inaccuracy (up to about 300m).
S/A can be directed to specified regions, so it's not necessarily indiscriminate.
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