BendixKing KLX 135A - Pilots Guide - Manual (Page 91)

Basic GPS Operation
3-62 Effective Date 4/97 006-08789-0000 Rev 2
Basic GPS Operation
Chapter 3
The KLX 135A will normally alert you prior to entering one of these
areas with a message prompt. When
the Message page is viewed it will
display Airspace Alert and will also
display the name and type of the spe-
cial use airspace (figure 3-182). If the
special use airspace is a Class B,
Class C, CTA, or TMA, the message
page will also instruct you to press the
E
button if you wish to see the
Airport 4 page (airport communica-
tions) for the primary airport so that
the correct communications frequen-
cy may be determined (figure 3-183).
NOTE: In addition to the message page messages that alert you to
special use airspace, the KLX 135A can also display the five nearest
areas of SUA. It will even give you the direction and distance to the
nearest edge of the SUA. See section 3.8.2 for more details.
The SUA alert feature is three dimensional. The SUA areas are
stored in the KLX 135A data base with regard to altitude when the
actual SUA altitude limitations are charted in terms of mean sea level
(MSL). Therefore, if you are flying either above or below an SUA
area you won’t be inconvenienced with nuisance alert messages.
However, if the actual lower limit of an SUA is charted in terms of an
altitude above ground level (AGL), then it is stored in the KLX 135A
as all altitude below the upper limit of the SUA. If the actual upper
limit of an SUA is charted in terms of AGL, it is stored in the KLX
135A as “unlimited”.
Since the altitude input to the KLX 135A is pressure altitude from an
altitude encoder, you must manually update the KLX 135A with an
altimeter setting (baro correction) in order to receive accurate SUA
alerting. You may easily update the
altimeter setting by selecting the SET
8 page (figure 3-184) The right inner
knob is used to change the altimeter
setting. When the setting is complete,
turn off the cursor.
CAUTION: Failure to keep the altimeter baro setting updated
will result in inaccurate special use airspace alerting. If this fea-
ture is used, it is a good idea to update the altimeter baro setting
on the SET 8 page each time you make a change to an aircraft’s
altimeter setting.
APT VOR NDB SUP ACT NAV FPL CAL SET OTH
*Airspace Alert
OMAHA CL C
Below 5000 ft
CLR for KOMA Freq
Figure 3-183
APT VOR NDB SUP ACT NAV FPL CAL SET OTH
*Airspace Alert
COLUMBUS FOUR MOA
1000 ft to 18000 ft
MEM Center
Figure 3-182
APT VOR NDB SUP ACT NAV FPL CAL SET OTH
118.00 Baro: 29.95 "
136.97 Ind Alt 8500'
>Leg Baro Unit: "
CRSR Inches
Figure 3-184