BendixKing KLN 89B - Pilots Guide - Manual (Page 56)

KLN 89/KLN 89B Pilot’s Guide Basic GPS Operation
3-19
Basic GPS Operation
Chapter 3
not being blocked. If possible, position the aircraft away from
hangars or other obstructions.
3. It is very helpful for the KLN 89(B) to have the correct time, date
and position to be able to determine which satellites should be in
view. This information is stored in the battery backed memory of
the KLN 89(B) so it is not normally required to update it. If the KLN
89(B) has the correct time, date and position, then the time to first
fix will usually be less than two (2) minutes. If this information is not
correct, then the KLN 89(B) will start to look for any satellites.
Eventually, the KLN 89(B) will find enough satellites to determine
the position of the aircraft. This process can take as long as 12
minutes. It is possible for you to update this information manually,
which will allow the KLN 89(B) to reach a NAV ready status much
faster. To set the time and date follow steps 5 and 6 in section 3.2,
“Turn-On and Self-Test.” The initial position is usually set during
turn-on and self-test, but if for some reason it is necessary to
update the position after the power-on sequence, then use the fol-
lowing steps. Remember, if acquisition time is not important then it
is not necessary to update the time, date or position.
To initialize the position from the SET 1 page:
1. If the cursor is not on the screen
(figure 3-62), press the
B
button
to bring it on the page over the
INIT POS field (figure 3-63).
2. Using the right inner and outer
knobs, enter the identifier for the
airport where you are presently
located or the identifier of a navaid
or other airport which is close to
your present position (figure 3-64).
Any waypoint in the data base
which is within 60 miles is accept-
able, but the closer the better.
Remember, if you are entering an
airport identifier that is all letters
(no numbers), then it will begin
with a “K” prefix in the contiguous
U.S., a “P” in Alaska (in some
cases; in others, the prefix is not
added), or a “C” in Canada. If there are numbers in the identifier
then a prefix is not used. Outside the contiguous U.S., Alaska, and
Canada, use the airport identifiers as they are charted.
APT VOR NDB INT USR ACT NAV FPL CAL SET OTH
åå.ånm|INIT POS:
ееееее| N 51°12.00'
Leg| W115°51.11'
SET 1 |
Figure 3-62
APT VOR NDB INT USR ACT NAV FPL CAL SET OTH
åå.ånm|INIT POS: «
ееееее| N 51°12.00'
Leg| W115°51.11'
*CRSR*|
Figure 3-63
APT VOR NDB INT USR ACT NAV FPL CAL SET OTH
åå.ånm|INIT POS:CYYC
ееееее| N 51°12.00'
# Leg| W115°51.11'
*CRSR*|
Figure 3-64