II Morrow Inc. 920 GPS User Manual
Page 13
Depending on the relative position of the
satellites to one another, their elevation above
the horizon, and other factors, the accuracy of
the position fix can change. Under ideal
conditions, the position can be accurate to
within 10 meters. In general, a GPS receiver
position fix is accurate to within 100 meters.
GPS altitude is based on a mathematical
model of the sphere of the earth. Including
intentional
degradation
introduced
by
Selective Availability, GPS altitude may differ
from barometric altitude by several hundred
feet.
Unlike land-based position sensors, a GPS
receiver can provide an accurate position fix
over land, sea, or in the air anywhere in the
world. Also, position accuracy of the GPS
receiver is unaffected by atmospheric conditions.
Intended for use in aviation, marine, and general
terrestrial applications, the Apollo handheld GPS
receiver is an advanced navigation device built
with quality and pride. We at II Morrow Inc. are
certain you will find it to be a versatile and
valuable travel companion.
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