BendixKing KLN 900 - Abbreviated Guide - Manual (Page 15)

almanac data will become out-of-date only if the KLN 900 hasn’t been
used for the previous six months or longer. Collecting new almanac data
takes place automatically if the data is more than six months old. If the
almanac data is out-of-date and needs to be collected, the KLN 900 will
take a few minutes to acquire your present position (usually about two
minutes, but not more than 12 minutes). The Self Test and Database
pages should be approved.
2. The aircraft must be located such that the GPS antenna has an unob-
structed view of the sky so that required satellite signals are not being
blocked. If necessary, position the aircraft away from hangars or other
obstructions.
3. It is very helpful for the KLN 900 to have the correct time, date and posi-
tion to be able to determine which satellites should be in view. This infor-
mation is stored in the battery backed memory of the KLN 900 so it is not
normally required to update it. If the KLN 900 has the correct time, date
and position, then the time to first fix will usually be less than two (2) min-
utes. If this information is not correct, then the KLN 900 will start to look
for any satellites. Eventually, the KLN 900 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 900 to reach a NAV ready status much faster.
To set the time and date follow steps 6 and 7 in section 3.2, “Turn-On
and Self-Test”, in the Pilot’s Guide. If it is necessary to update the posi-
tion then use the following steps. Remember, if acquisition time is not
important then it is not necessary to update the time, date or position.
a. Select the Setup 1 page (SET 1) by first turning the left outer knob to dis-
play a SET type page. Next, turn the left inner knob until the SET 1 page
is selected.
b. Press the left C to bring the cursor on the page over the WPT field .
c. Use the left inner knob to enter the first character of the identifier for the
airport where you are presently located or the identifier of a navaid or
other airport which is close to you. Remember, if you are entering an air-
port identifier that is all letters (no numbers), then it will begin with a “K”
prefix in the Contiguous U.S., a “P” in Alaska, 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.
d. Rotate the left outer knob one step clockwise to move the flashing por-
tion of the cursor to the second position and then use the left inner knob
to enter the second character of the identifier.
e. Complete entering the rest of the identifier using the left knobs in the
same manner as in step d.
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