TM 55-1510-219-10
r.
INSERT/ADVANCE
pushbutton - press.
(Observe pushbutton light extinguishes.)
NOTE
Any number will be accepted by INS;
however, only stations with a channel
number within range of "1" through
"126" will be used for TACAN mixing.
NOTE
Channel number has an implied "X" suffix.
NOTE
Degree symbol (°) should be disregarded when
reading altitude and data display.
s.
INSERT/ADVANCE
pushbutton - Press.
(Observe station northing, zone, and easting
reappear.)
t.
Repeat steps 3 through
20
for
each
TACAN
station.
u.
To return INS to normal
mode, momentarily set
data
selector
to
UTM
POS.
(b)
Insertion
of
geographic
TACAN
station data:
NOTE
Prior to pressing INSERT/ADVANCE
pushbutton, any incorrectly loaded
data can be corrected by pressing
CLEAR
pushbutton
and
loading
correct data.
1.
Data selector - L/L WYPT.
NOTE
If number of station to be loaded is
same as number of TACAN station
currently being used, number in "TO"
display will be set to "O" when TACAN
data is loaded.
2.
Keys "7" and "9" - Press
simultaneously.
(Observe that number of TACAN station being used
for navigation flashes on and off in "TO" display. Data
displays indicate coordinates of station selected via
thumbwheel.)
3.
Thumbwheel - Set to number
of
station
being
loaded.
(Insure
thumbwheel
is
in
detent.)
NOTE
Station "0" cannot be loaded.
4.
To load latitude - Press keys
in sequence, starting with "N"
or "S" to indicate north or
south.
(Example: 42°54.0' North = N 4 2 5 4 0. Observe
that INSERT/ADVANCE pushbutton light illuminates
when first key is pressed.)
5.
INSERT/ADVANCE
push-
button - Press
(Observe pushbutton light extinguishes.)
6.
To load longitude - Press
keys in sequence, starting
with "W" or "E" indicating
west or east.
(Example: 8754.9' West = W 8 7 5 4 9. Observe
that INSERT/ADVANCE pushbutton light illuminates
when first key is pressed, and longitude appears in data
display as keys are pressed.)
7.
INSERT/ADVANCE
push-
button - Press.
(Observe pushbutton light extinguishes.).
8.
INSERT/ADVANCE
push-
button - Press.
(Observe that the arc-seconds related to loaded
latitude and longitude, to nearest tenth of a second,
appear in left and right data display, respectively.)
9.
If extra precision coordinate
data is to be inserted Press
keys in sequence, starting
with "N", to load related arc-
second values for latitude.
(Example: 35.8" North = N 358.)
10.
INSERT/ADVANCE
push-
button - Press.
(Observe pushbutton light extinguished.)
11.
To load related arc-second
values for longitude -Press
3-56
