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B
Mount the unit to provide good electrical bonding to airframe ground. Lightning
strike protection and RF susceptibility and emission characteristics depend on
good electrical grounding of the unit and cable shield returns.
Refer to
Figures 2-11
The KMH 820/KTA 810 will need to interface to the aircraft audio sys-
tem, aircraft DC power, panel mounted warning lamps and switches, a
source of barometric altitude (usually an encoding altimeter or blind
encoder), a GPS antenna and a panel mounted display.
If possible, clearance to the top of the KMH 820 should be provided to facilitate
removal and installation of the terrain database CompactFlash card. The terrain
database card is removed and installed with power NOT applied to the system.
The KMH 820 may be removed from the aircraft to extract and install database
cards if the mounting location does not provide enough clearance.
Updating the Terrain DataBase is accomplished by:
Moving the aluminum cover over the CompactFlash card out of the way.
Pressing the flash card ejector button located within the unit.
Removing the old flash card.
Inserting the new flash card and replacing the cover.
If possible, mount the KMH 820 such that the above can be accomplished without
requiring disassembly of the aircraft or removal of the KMH 820.
The KMH 820 drives three lamps and accepts input from two switches. The lamps
should be identified as:
FUNCTION
Not Available Amber
Caution
Warning
The RED Warning lamp must be located in the pilot's primary field of view.
Rev 3, August/2002
and
2-12
for TNC connector assembly guidelines.
NOTE
COLOR
Terrain N/A or Terr N/A
Amber
Terrain
Red
Terrain
10609I03.CDL
KMH 880/KTA 870
LEGEND
Page 2-4
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