Instruction Manual

Advanced GPS Operation
4-26
Advanced GPS Operation
Chapter 4
To set the alarm:
1. Turn on the cursor (B). If necessary, change the system time
zone to the desired one on line 1 of the CAL 3 page.
2. To set the alarm to activate at a certain time, more the cursor to
the at: field on line 2. Select the
desired hours, and then minutes
(figure 4-83). Notice that as you
change it, the interval from pre-
sent time to alarm time is updated
on line 3.
3. To set the alarm to activate in a
certain length of time, move the
cursor to the in: field on line 3 and
select the desired hours and min-
utes, up to 9 hours and 59 minutes
(figure 4-84). Turn off the cursor
4. When the alarm goes off, the KLN89(B) will display the message
page message:
*Timer expired
4.5.4. THE CALCULATOR 4 (CAL 4) PAGE
The CAL 4 page is used to determine pressure altitude.
To calculate the pressure altitude:
1. Turn on the cursor (B).
2. Enter the altitude indicated on the
aircraft’s altimeter (Ind) to the
nearest hundred feet or ten meters
by using the right inner knob to
select the desired value (figure 4-
85).
3. Use the right outer knob to move
the cursor to the Baro field, and
then use the right inner knob to
enter the current altimeter setting
(figure 4-86). The pressure altitude
(Prs) is now displayed.
NOTE: The altimeter baro set units may be changed between inches,
millibars and hectopascals on the SET 8 page (see section 3.3).
APT VOR NDB INT USR ACT NAV FPL CAL SET OTH
åå.ånm| PRESSURE ALT
åååååå|Ind: 05000ft
Leg|Baro: 30.03"
*CRSR*|Prs 04900ft
Figure 4-85
APT VOR NDB INT USR ACT NAV FPL CAL SET OTH
åå.ånm| PRESSURE ALT
åååååå|Ind: 05000ft
Leg|Baro: 29.74"
*CRSR*|Prs 05200ft
Figure 4-86
APT VOR NDB INT USR ACT NAV FPL CAL SET OTH
åå.ånm|Time CST 1436
åååååå|Alarm at: 1447
Leg| in: 0:11
*CRSR*|Elapsed 0:16
Figure 4-83
APT VOR NDB INT USR ACT NAV FPL CAL SET OTH
åå.ånm|Time CST 1436
åååååå|Alarm at: 1621
Leg| in: 1:45
*CRSR*|Elapsed 0:16
Figure 4-84