Instruction Manual

Page 2-12 G1000 / GFC 700 System Maintenance Manual - 200/B200 Series King Air
Revision 9 190-00915-01
2.1.20 GRA 5500 Radar Altimeter
The GRA 5500 Garmin Radar Altimeter is designed to calculate the height Above Ground Level (AGL)
of the aircraft which is displayed on the PFDs. For King Air installations, the GRA 5500 is configured to
output the value height Above Ground Level to the pilot through the GDU. The GRA interfaces to the
existing radar altimeter antennas and GIA #2 via the ARINC 429 digital bus. The GRA 5500 is located
below the lower avionics equipment shelf in the tail section. The GRA 5500 is powered from the No. 2
Avionics Bus.
Figure 2-19, GRA 5500 Radar Altimeter
2.1.21 Garmin G36 and 37 GPS/WAAS Antennas
This installation uses one G36 GPS/WAAS antenna and a G37 GPS/WAAS/XM antenna. The antennas
are located in the upper, forward cabin, at F.S. 152.