Install Manual

System Configuration/Checkout
GDL 69/69A Installation Manual Page 4-9
190-00355-02 Rev. F
NOTE
For composite aircraft, hold the GRC 10 as close to the antenna under test as practical
from inside the cabin. For metal aircraft, hold the GRC 10 close to the window nearest
the antenna under test. Repeat the test for the other GPS antenna when complete.
5. While monitoring the signal status of each satellite being received on the GPS, power on the GRC
10 using the XM button and immediately press the
button at least once a second for a
minimum of 35 seconds and check the GPS signal reception to make sure it is not affected (no
significant signal degradation). Perform the test with the GRC 10 in the horizontal orientation
with the unit pointing at the antenna. Repeat test with the GRC 10 in the vertical orientation with
the back of the unit pointing at the antenna.
NOTE
If the GDL 69A subscription services with XM Satellite Radio Corporation have not been
activated, only a limited number of channels will be available. In this case, repeated
pressing of the GRC 10

reached. The GRC 10 is still communicating with the GRT 10 even though the channel
display may not be updated.
4.8 Activation with XM Satellite Radio
Before the GDL 69/69A can be used, the unit has to be activated by XM Satellite Radio and services have
to be subscribed to XM Satellite Radio Corporation. Refer to Garmin Document P/N 190-00355-04.