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VAB 2 Selects Waypoints 04-06 for display on Waypoint Coordinate Page
VAB 3 Selects Waypoints 07-09 for display on Waypoint Coordinate Page
VAB 4 Selects Waypoints 10-12 for display on Waypoint Coordinate Page
VAB 5 Selects Waypoints 13-15 for display on Waypoint Coordinate Page
VAB 6 Selects Waypoints 16-18 for display on Waypoint Coordinate Page
VAB 7 Selects Waypoints 19-20 for display on Waypoint Coordinate Page
VAB 8 Displays page 2 of WPT LIST allowing access to Waypoints 21-40
Table 3-22.6. WAYPOINT COORDINATE PAGE VAB OPERATIONS
Control/Display Function
VAB 1-3 With valid data in the coordinate location, depression of VABs 1-3 will select the
(SCRATCHPAD coordinates associated with the selected VAB as the Active FLY-TO location.
EMPTY)
VAB 1-3 With Coordinate, ID, Altitude or Datum data in the scratchpad, depression of VABs 1-3
SCRATCHPAD will cause the scratchpad data to be validated. If valid, the data item associated with the
CONTAINS depressed VAB will change to the entered value. If data is invalid, an error message will
DATA) display prompting operator to employ normal scratchpad editing rules. If the intended
destination of the entry is either the Active Fly-To or Active Target, the prompt "NO
MOD TO ACTIVE COORD" will appear in the scratchpad. This signifies that the
system will not permit the Active Fly-To or Target coordinate to be modified.
3-64.12 Change 3
11
TM 1-1520-238-10
Table 3-22.6. WAYPOINT COORDINATE PAGE VAB OPERATIONS - continued
Control/Display Function
VAB 4 Toggles between UTM or L/L display formats.
VAB 5-7 With valid data in the coordinate location, depression of any of these VABs will select the
(WITH SEL:TGT coordinate associated with the depressed VAB as the Active Target location.
DISPLAYED)
VAB 5-7 Displays the range and bearing (Range XXXXXXBRGXXX) to the selected coordinate
(WITH SEL:R/B on line 8.
DISPLAYED)
VAB 5-7 Copies the coordinate data associated with the depressed VAB into the scratchpad.
(WITH SEL:XFR
DISPLAYED
VAB 8 Depression of this VAB allows toggling between VAB 5-7 SEL:XFR, VAB 5-7 SEL:TGT
and VAB 5-7 SEL:R/B. Upon system power-up, the system defaults to VAB 5-7
SEL:TGT. Following selection of SEL:XFR or SEL:R/B, the system defaults back to
SEL:TGT.
3.16.9 Weapon Control (WPN CONTROL) Page. Depressing
the WPN FAB allows the operator to access the
WPN CONTROL page (figure 3-26.9). Variable Action
Button operation is detailed in Table 3-22.7. When the
WPN CONTROL page is selected, the WPN CONTROL
display is formatted as follows:
Figure 3-26.9. Weapon Control Display Page
Line 1. - Blanked.
Line 2. Displays the centered page title WPN CONTROL.
Line 3. The left-hand character field displays the legend
RNG:MAN XXXXXXM showing the current range
source and current range value in meters. The current
CPG range source may be any of the following sources:
AUTO, DFLT, LSR, MAN, NAV, NOAR or TGT (See
Table 3-22.8) Line 4. Blanked.
Line 5 Displays the legend T(or W)XX DXXXXXX BRG
XX.X denoting Active Target number, distance to Active
Target in meters (D000001 to D999999) and bearing
(BRG) to Active Target in degrees and tenths of degrees
(000.0 to 359.9) respectively.
Line 6. Displays System Annunciator Data.
Line 7. The left-hand character field displays the legend
TGT RPT: ON (or OFF). The right-hand character field
displays STR TXX denoting the location for the next TGT
Store function (71-80).
Line 8. Scratchpad for data input.
Change 3 3-64.13
12
TM 1-1520-238-10
Table 3-22.7. WEAPON CONTROL PAGE VAB OPERATIONS
Control/Display Function
VAB 1 Inactive
VAB 2 With the scratchpad empty, or with a leading "A" or "0" entered in the first position in the
scratchpad, depressing VAB 2 selects AUTO range as the CPG range source. With a scratchpad
entry of a range (1 to 999,999 meters), depressing VAB 2 changes the CPG range source to
manual and will update the CPG range source value to the entered value.
VAB 3 With a valid target symbol, TXX or WXX, and valid coordinates previously entered in the
scratchpad, depressing VAB 3 will designate the scratchpad entry as the new Active Target.
Invalid entry will result in the ERROR message being displayed in the scratchpad. Without data
present in the scratchpad, depressing VAB 3 presents the Active Target coordinates in the
scratchpad. With the Active Target coordinates in the scratchpad, a second depression of VAB 3
results in presentation of the Associated Data for the Target coordinates. Coordinate and
Associated Data in the scratchpad are "Display Only"; and are not editable or transferable.
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