TM 1-1520-238-10
3-64.8
Change 10
Table 3-22.2.
ADMIN SUB-PAGE VARIABLE ACTION BUTTONS
Control/Display
Function
VAB 1
Used for manual entry of MONTH DAY YEAR update data (MMDDYY) when the outlined
arrow is (
!!!!
) displayed in character position 1 on line 1., and character string is present in
the scratchpad. Valid entries are: 01-12 for MM; 01-31 for DD; and 00-99 for YY.
VAB 2
Used for manual entry of Altitude update data. Positive altitude is assumed and does not
require a ‘‘+” sign; Negative altitude (below MSL) requires a minus (-) sign preceding the
altitude value. Altitude ranges are -900 feet MSL to 20000 MSL. Altitude is always
displayed in feet.
VAB 3
Used for selecting MODE:LAND or MODE:Water navigation operations. System defaults
to MODE:LAND at power up. Depressing VAB 3 toggles between two choices.
VAB 4
Selects the data presentation format to be used for PPOS, CPOS, WAYPOINT, and
TARGET coordinate data entry. System defaults to MODE:UTM at power up. Depressing
VAB 4 toggles between MODE:UTM AND MODE:L/L. Pages affected by pressing VAB 4
are NAV, OFFSET, WAYPOINT and TARGET.
VAB 5
Used for manual entry of HOUR MINUTE SECOND update data (HHMMSS) when the
outlined arrow is (
!!!
) displayed in character position 22 on line 1., and character string is
present in the scratchpad. Valid entries are: 00-23 for HH; 00-59 for MM; and 00-59 for SS.
VAB 6
Used for manual entry of HG (barometric pressure). Valid entries are: 27.92 to 31.92. Data
is entered in scratchpad as XXXX; the decimal point entry is not required. This entry
followed by an altitude entry within 60 seconds will cause the system to re-calibrate the
ADS pressure sensor bias correction. This provides more accurate altitude calculation,
which improves vertical cueing, target position determination and pre-pointing.
VAB 7
Used for selecting HBCM sub-page. Valid only if HBCM is present indicating the DNS
system is ‘‘GO”.
VAB 8
Used for selecting DSPL:KM or DSPL:NM signifying metric system or nautical system,
respectively, in use for coordinate display. Depressing VAB 8 toggles between the two (2)
choices.
