Troubleshooting & Operating Tips
ProMARK X
8-9
Navigation- and velocity-related data is not
available until three fixes have been made.
Do this:
Wait until three position fixes have been
taken, then try again.
DASHES APPEAR IN
You are 65.6 feet (20 meters) or less
NAV DISPLAYS
from your destination. Distance to destina-
tion is no longer available, and bearing varies
considerably. This is normal.
SOME VALUES IN NAV
Certain values are calculated from an
DISPLAYS ARE NOT
instantaneous measurement of speed. Since
STABLE
speed may fluctuate from one instant to
another, these calculations may seem
unsteady. The navigation calculations that
may be affected are VMG, SOA, COG, TTG,
and ETA; the velocity calculation that may be
affected is SOG.
Do this:
Use Velocity Average to replace the
instantaneous measurement.
SATELLITE AVAILABILITY
The unit may not have a current almanac,
NOT TO YOUR
or the position or health of one or more
EXPECTATIONS
satellites may have changed since the last
almanac update.
Do
this:
Check your initial position, time, and the
satellites displayed with Sat Status
(AUX 3). Collect a new almanac with
Almanac Collect, then check Sat Status
again. Note if more satellites are listed
now.
You are using 3D, which requires four
satellites. Satellite coverage in some areas to
the far north or south and at some times of
day may not be sufficient to support 3D
operation to your complete satisfaction.
Summary of Contents for GPS PROMARK X
Page 4: ......
Page 10: ...vi...
Page 14: ...Introduction ProMARK X 1 4...
Page 92: ...Attributes ProMARK X 6 8...
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