X
X
L
L
D
D
C
C
M
M
A
A
N
N
.
.
d
d
o
o
c
c
3
3
-
-
8
8
R
R
E
E
V
V
E
E
The third time the POSITION button is pressed, the display will show:
Altitude
or Altitude
+000050 Meters
+000152 Feet
The fourth time the POSITION button is pressed, the display will show:
Pdop
+2.06
which is the position dilution of precision (PDOP).
Each press of the POSITION button will cause the display to scroll through these four readings. The
position that is displayed will change slightly each time it is displayed if the unit has adequate satellite
visibility. Since these positions are unaveraged single fixes their accuracy is limited by both the
geometry of the satellite constellation and the effects of SA. The fixes displayed using this button are
equivalent to those returned via either keypad Function 50 or Serial Function F50.
3-27 KEYPAD OPERATION
The 16-key panel-mounted keypad consists of numeric keys "0" through "9", arrow keys "up", "down",
"right", and "left", a clear key "CLR" and the function/enter key "FUNC/ENTR". Refer to "SELECTING
FUNCTIONS AND ENTERING DATA" in this section before attempting function entries. The following
rules are for keypad function entry:
A.
STATUS, TIME or POSITION should be on the alphanumeric display before starting a function.
If not, press the "STATUS" button.
B.
It takes several seconds for some functions to appear. If nothing happens after several
seconds, press "STATUS", then try again.
C.
When pressing keypad buttons, hold the button for 1/4 second to reduce contact bounce and
insure the key is recognized. Short "pokes" may result in bad entries.
D.
To enter a specific function first press FUNC/ENTR then the function number. Be sure to
include the leading zeros for functions less than ten. If the function number is currently
unassigned or not implemented, the alphanumeric display will show the "function not
implemented" message and will then revert to STATUS.
E.
When entries are complete and the display shows the desired data, press "FUNC/ENTR".
F.
The "CLR" key will clear data entered. Example: If you intended to enter a value of 865, but
notice just prior to pressing the "FUNC/ENTR" that you inadvertently entered 855, press "CLR".
The display will revert to the previous value. Re-enter 865 and press "FUNC/ENTR". To verify
your entry, press "FUNC/ENTR" and the appropriate function number and the data will display.
To leave this function unchanged simply press the "STATUS" button. Your entry will remain
unchanged and the display will have reverted back to "STATUS".
Summary of Contents for 151-600
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