BendixKing KSN 770 - Pilots Guide - Manual (Page 277)

KSN 765/770 Integrated Communication Navigation Display
D200802000009
REV 2 Jun 2014
Flight Management System (FMS)
15-4
Honeywell International Inc. Do not copy without express permission of Honeywell.
Not yet effective databases are displayed in green font with -- NOT YET
VALID appended to the cycle date range. Expired databases are
displayed in green font with -- EXPIRED appending to the cycle date
range. The inactive navigation database is selected for use by pushing
the bezel softkey next to the inactive database. When pushed, a
caution box is displayed, as shown in Figure 15--2, which states that
changing the NAV database will clear the flight plan and pushing the
OK softkey confirms the change. When the inactive database is
selected, the active database becomes inactive.
Figure 15--2
Changing NAV DB Caution
The aircraft operator can load a new navigation database (one that is
not yet effective) ahead of time. That database should not be used for
navigation until it becomes effective.
Databases that are loaded ahead of time but not yet effective
automatically become the active database when the KSN 765/770 is
powered up after 0900 Zulu on the first day of the effective cycle.
Real Time Clock
An internal real time clock supplies the time and date for validation of
the navigation database cycles. When global positioning system (GPS)
time is available, the time and date synchronize to the GPS.