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Enstrom TH-28/480 Series Maintenance Manual Supplement 8
G1000H Integrated Flight Deck System
Rev. 1, Jan 25/18
Page
3-1
GDL 69AH XM WEATHER RECEIVER
SECTION 1
SYSTEM DESCRIPTION
3.1
System Description
The GDL 69AH is an XM Satellite Radio data link receiver. The XM Satellite Radio antenna (GA
55) receives the XM satellite signal and passes it to the GDL 69AH. The GDL 69AH is a weather
receiver with the addition of XM Satellite Radio audio entertainment. Weather information is
displayed on the GDU 1040H (MFD) display via an ethernet link. The GDL 69AH is interfaced to
the Garmin GMA 350H audio panel for amplification and distribution of the audio signal.
Power to the GDL 69AH system is provided via the XM DL (CB163, 1 amp) circuit breaker located
on the left side of the circuit breaker panel (Figure 16).
Refer to Figure 4
for the GDL 69AH unit location and Figure 6 for the antenna location. Refer to
28-AC-062 Rotorcraft Flight Manual Supplement for GDL 69AH operation.
NOTE
For information regarding the GMA 350H audio panel, refer to either the GMA
350H electrical schematic (Diagram 1-4), the TH-28/480 Series Maintenance
Manual Supplement 5, or 28-AC-051 Rotorcraft Flight Manual Supplement for
GMA 350H operation.
3.1.1
Vendor Publications
The following components listed in Table 6 are to be operated and maintained I/A/W the
current vendor’s instructions to ensure the continued airworthiness of the aircraft:
Table 6. GDL 69AH Vendor Manuals
Component Publication
Vendor
GDL 69AH
GDL 69 Series Installation
Manual, 190-00355-07,
latest revision
Garmin International, Inc.
1200 E. 151
st
Street
Olathe, KS 66062 USA
Telephone: 913-397-8200
G1000H Integrated Avionics
System Standard
Maintenance Manual, 190-
01739-00, latest revision
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