X
X
L
L
D
D
C
C
M
M
A
A
N
N
.
.
d
d
o
o
c
c
3
3
-
-
2
2
3
3
R
R
E
E
V
V
E
E
Press "FUNC/ENTR" then "3" "1". The display will show:
Backlight or
Backlight
off
on
Press the up or down arrow keys to toggle between "off" and "on". When the display shows the desired
choice, press "FUNC/ENTR" and the backlight will respond.
3-132 through 3-149 reserved
3-150 KEYPAD FUNCTION 50 - POSITION ENTRY/REQUEST
Use keypad Function 50 to enter or request the current antenna position. Since Function 50 returns the
most recent fix computed by the GPS core receiver, not the long term averaged position which is
calculated during the AUTO mode of operation and reported via either Keypad or Serial Function 56, it
is used mainly for initializing the approximate position of the GPS core receiver at new installations or
after loss of non-volatile RAM back-up power.
The as-shipped default for position is that of the TrueTime factory in Santa Rosa, California. The
position value on power-up will be that in use prior to power-down.
Press "FUNC/ENTR", then "5" "0". The display will show:
Latitude
N 38 23'53.9"
Press the right or left arrow keys to position the cursor beneath the character that you want to change.
Press the up or down arrow keys to scroll through the possible choices. Alternately, numbers may be
directly entered using the keypad. The cursor will automatically advance to the next position. When
the display shows the desired Latitude, press "FUNC/ENTR" and the display will show:
Longitude
W 122 42'53.0"
Using the same combination of arrow keys and direct digit entry, when the display shows the desired
value for Longitude, press "FUNC/ENTR" and the display will show:
Altitude
+000055 Meters
Using the same combination of arrow keys and direct digit entry, when the display shows the desired
value for Altitude, press "FUNC/ENTR" and all of the new position data will be entered. To abort
without changing the initial position data, press the "STATUS" button any time before the final
"FUNC/ENTR". If the user attempts to enter a value that is out of the acceptable range the display will
show the message
Summary of Contents for 151-600
Page 2: ...Model XL DC Serial Number__________________ September 15 1997 Revision E...
Page 4: ......
Page 27: ...X...
