System Maintenance Manual
G1000 / GFC 700 System Maintenance Manual - 200/B200 Series King Air Page 2-9
190-00915-01 Revision 7
2.1.14 GSR 56 Satellite Receiver (optional)
The GSR 56 provides airborne low speed data link and voice communication capability to Garmin Integrated
Flight Deck installations. The GSR 56 contains a transceiver that operates on the Iridium Satellite network.
The GSR 56 interfaces directly to the GDL 59 via an RS-232 interface. The GSR 56 is located in the aft
cabin floor area, just forward of the cabin door. The GSR 56 is powered from the Avionics No. 2 bus.
Figure 2-14, GSR 56 Satellite Receiver
2.1.15 GTS 8XX Traffic System (optional)
The GTS 8XX is a traffic surveillance system that uses active interrogation of Mode S and Mode C
transponders to provide traffic advisories to the pilot. The GTS 820 is a TAS unit; the GTS 850 is a TCAS I
unit. The installation includes a top directional antenna (GA 58) paired with a GPA 65 power amplifier / low
noise amplifier (PA/LNA) unit and a bottom, unamplified GA 58 antenna. The GTS 8XX is located in the
nose avionics bay on the top, left shelf. The GPA 65 is located in the left sidewall area, just in front of the
most forward cabin window. The GTS 8XX traffic system is powered from the Avionics No. 2 bus.
Figure 2-15, GTS 8XX Traffic System
2.1.16 GWX 68 Weather Radar
The GWX 68 Airborne Weather Radar provides weather radar data output to the GDU 1500 MFD. The
GWX 68 is mounted forward of the forward bulkhead at F.S. 30. Power to the GWX 68 is received from the
avionics No. 1 bus. Data received from the GWX 68 is routed through the GDL 69A data link unit to the
MFD via high-speed data bus (Ethernet).
Figure 2-16, Weather Radar










