JRC J-NAV 500 - 4.6 Basic menu selection operations

GPS Navigator J-NAV500
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Tip HDOP level
A standard for assessing accuracy of position fixing. HDOP is based on the shape formed by the
positions of satellites and the receiver; a good shape yields a low HDOP level and an accurate
position fix value. A poor shape produces a high HDOP level and an inaccurate position value.
Satellites
A poor geometrical shape produces a high
HDOP level
A good geometrical shape produces a low
HDOP level