8-3
“Not Usable”
The GPS 95 is unusable (possibly due to
incorrect initialization data or abnormal satellite
conditions). Turn the unit off and back on.
When operating with an RTCM input selected, the Bar Graph Display will
denote each satellite for which
differential corrections are available
with a “D” at the bottom of the bar.
(See Section 8.11 for more information
on RTCM input selections.)
Furthermore, the differential navigation
status will also display at the top of the
page. There are two additional receiver
status messages available when using
an RTCM input:
“2D Nav - Diff””
The GPS 95 has calculated a differentially-
corrected horizontal position. Altitude has not
been corrected.
“3D Nav - Diff””
The GPS 95 has calculated a differentially-
corrected position, including altitude.
8.2 SATELLITE STATUS PAGE
The Satellite Status Page shows the ID,
azimuth, elevation, and signal quality of
each visible satellite in a table format.
The receiver status, again, is displayed
at the top of the screen. The second line
displays two system quality values -
dilution of precision (DOP) and estimated
position error (EPE). EPE and DOP are
advisory information only and are not to
be used as absolute measures of
accuracy. (See Appendix B for definitions of these terms.)
