BendixKing KLN 900 - Pilots Guide - Manual (Page 184)

7-1 Rev 1
CHAPTER 7 - TANDEM OPERATION
7.1 TANDEM OPERATION
The tandem KLN 900 system is intended for training air-
craft and consists of two KLN 900s and one antenna.
During tandem operation, one KLN 900 is designated as
the master and the other as the slave. The master KLN
900 should be installed in the cockpit occupied during
solo flight. The antenna must be connected to the master
KLN 900 unit. The KLN 900 will only operate in tandem
with another KLN 900.
Tandem operation provides a method for entries to be
made on either of the KLN 900 units. Any entries made
on one unit are reflected on the other. If entries are made
on the master and the slave simultaneously, entries of the
master KLN 900 have priority over the slave KLN 900.
The same display information appears on both KLN 900
units.
The master KLN 900 needs a current data base card.
The slave does not need a data base or an antenna
unless it is intended that the slave be able to operate in
stand alone mode (no master). In that situation the slave
KLN 900 will need both a data base and an antenna.
When the right inner knob of either the master or the
slave is pulled out and the cursor is on a scan field, all
characters from the active cursor field to the last charac-
ter in the scan field are highlighted. Turning the right
inner knob which is pulled out increments or decrements
the entire sub-field; turning the right inner knob which is
not pulled out increments or decrements only the data in
the active cursor field. This allows the cursor to operate
in either setting regardless of the setting of the other unit.
The cursor will revert to the entire sub-field after 5 sec-
onds if one knob is pushed in while the other knob
remains pulled out.
During normal tandem operation, flight plans and user-
defined waypoints will be crossfilled from the master to
slave unit whenever they are modified. (ORS 02 or later
units only)
7.1.1 Tandem Operation Failure Modes and
Messages
If the slave unit fails, (does not communicate with the
master unit for approximately 5 seconds), the master unit
will continue to operate, but the message “OTHER KLN
900 NOT RESPONDING” will be displayed.
If the master unit fails, a warning page will be displayed
(figure 7-1) on the slave.
WARNING: OTHER KLN 900
NOT RESPONDING. PLEASE
MAKE SURE OTHER
KLN 900 IS ON OR PRESS
THE ENT BUTTON FOR
STAND ALONE OPERATION.
Figure 7-1