use. Includes all public GPS only
a. Air Route Traffic Control Center
(ARTCC's and FIR's) boundaries
and frequencies (VHF and HF).
b. Flight Service Stations (location of
associated frequencies VHF and
c. Minimum safe altitudes.
d. Special Use Airspace boundaries
(Prohibited, Restricted, Warning,
Alert, MOA, Class B, TRSA, Class
C, CTA, TMA).
7. 250 User-Defined Waypoints.
b. Latitude and Longitude.
c. Additional data depending on how
user defines waypoint:
1 User airports (elevation and
surface of longest runway).
3 User NDB (frequency).
(2) Waypoints are stored in the KLN 90B
database almost exclusively by their ICAO identifiers.
There are several exceptions in Alaska. In
many cases, airports with three letter
identifiers receive the prefix P, but there
are many that dont. The most reliable
method of determining an Alaska airport
identifier is to look it up from the airport
name or city.
(3) Not all airports receive the prefix letter.
Airport identifiers that are combinations of letters and
numbers do not receive the prefix letter.
b. Database Update. There are two ways to
update the database.
(1) Cartridge Exchange. The new update
may be installed any time prior to the effective date
and the KLN 90B will use the previous data up to the
effective date and automatically begin using the new
data on the effective date.
1. Insert the KLN 90B insertion/ removal
tool in the small hole located on the
right side of the unit. A standard 3/32
inch Allen wrench may also be used.
2. Turn tool counterclockwise until the
locking mechanism becomes loose
counterclockwise until it just barely
begins to become snug. Do not turn
so far counter-clockwise that the
mechanism starts to bind and can no
longer be turned.
3. Pull the unit out of the rack by pulling
on the sides of the panel. DO NOT
PULL ON THE KNOBS.
4. Remove the old cartridge by pulling it
straight out of the back.
5. Insert new cartridge into the back of
the KLN 90B as indicated by the label
on the cartridge. When the cartridge
is properly inserted, the "Insert To
Here" marking on the label can just be
seen protruding from the rear of the
6. Make sure the front lug of the locking
mechanism is in the up position and
insert unit into the rack as far as it can
7. Re-insert tool and turn clockwise until
snug. Pull gently on front panel to
verify unit is locked into the rack.
(2) Laptop Computer Using 3.5 Diskettes.
1. Plug 9-pin female connector end of
interface cable into a COM serial port
2. Plug the other end of the interface
cable into the data loader jack on the
3. Turn on computer, insert Disk 1 and
the program will automatically load
and the screen will indicate ready.