Page 4-14 GDU 37X Installation ManualRevision C 190-01054-014.6 XM Activation Instructions (GDU 375 only)Follow the below instructions to activate the XM receiver in the GDU 375.Before XM Satellite Weather can be used, the service must be activated by calling XM at 1.800.985.9200.Service is activated by providing XM Satellite Radio with a Radio ID. XM Satellite Radio uses the RadioID to send an activation signal that allows the GDU 37X MFD to display weather data an/or entertainmentprogramming. XM service should activate in 45 to 60 minutes.1. The Radio ID can be displayed by accessing the XM Audio Page, and then pressing the INFO Softkey.Record the Radio ID for reference during XM Activation.2. Make sure that the aircraft's XM antenna has an unobstructed view of the southern sky. It is highlyrecommended that the aircraft be outside of and away from the hangar.3. Hook up the aircraft to external power if available. The complete activation process may take 45-60minutes or more, depending on the demand on the XM activation system.4. Power on the avionics and allow the GDU 37X to power up. Do not power cycle the units during theactivation process.5. Go to the XM Info Page. During the activation process the unit may display several differentactivation levels, this is normal and should be ignored. When the service class (Aviator Lite, Aviator,or Aviator Pro) and all of the weather products for the class that you subscribed to are displayed, theactivation is complete. Wait 30 seconds to allow the GDU 375 to store the activation before removingpower.During the activation process do not change channels or pages.NOTE
