If the unit should be unable to find the satellites for some reason, and the
initialized data has been verified as correct the receiver can be forced to
begin a complete satellite search to refresh the satellite orbit information
in memory by pressing
on the S
AT
ELLITE
STATUS
display.
To execute the Satellite Search mode, press
followed bypressing
or
will appear in the display message windows showing the Search mode is
activated. Once the satellites have been
and a tixcalculated, ship’s
position can be displayed and the unit will be ready for navigation.
3 5 2 . 1 3
There may be some periods when the satellite geometry is not ideal for
obtaining the highest
accuracy
The
can be programmed to only
accept the most accurate
medium quality fixes, or all fixes based on
pre-determined HDOP values. To make an accuracy
the
following steps:
Press
repeatedly for the desired selection.
HDOP less than 5
Most Accurate
HDOP less than 10
Medium Accuracy
COARSE
HDOP less than 20
Less Accurate
It is recommended that during the constellation build-up period the
be set to the
level. Once full GPS coverage is in place,
then the
level setting should be selected. This is expected to occur
sometime later in 1993 according to the Department of Defense.
To make the HDOP selection, just press
until the
desired HDOP level is highlighted with the bar. PINE is selected when the
bar is completely highlighted.
return to the
SATELLITE STATUS
display.
When
POSITION CORR.
is pressed, the operator can calibrate
his L/L readouts by using any of the following features:
OPERATION 103
Содержание V8010
Страница 2: ...WCOLOR ECHO SOUNDER OPERATlON MANUAL...
Страница 16: ...1 q i z INTRODUCTION 8...
Страница 20: ...8 1 205 mm 13 07 _l m 332 mm Y OUTLINE DIdENS O S MI010 ECHO SOUNDER INSTALLATION 12...
Страница 127: ...MAINTENANCE...