Installation Instructions
GTN 6XX/7XX AML STC Installation Manual 190-01007-A3
Page 5-28 Rev. 4
Heading Source Input (software version 3.00 or later)
When upgrading from GTN software version 2.00 to 3.00, this setting defaults to ‘Connected’. If a
nuisance heading lost message appears a few minutes after power up and no heading source is present,
configure this setting to 'Not Connected'.
Table 5-15. Heading Source Input
Selection Description
Connected (Default) A heading source is connected to the GTN.
Not Connected A heading source is not connected to the GTN.
Altitude Source Input (software version 3.00 or later)
When upgrading from GTN software version 2.00 to 3.00, this setting defaults to ‘Connected’. If a
nuisance altitude source lost message appears a few minutes after power up and no pressure altitude
source is present, configure this setting to 'Not Connected'.
Table 5-16. Altitude Source Input
Selection Description
Connected (Default) A pressure altitude source is connected to the GTN.
Not Connected A pressure altitude source is not connected to the GTN.
Voice Command (software version 3.00 or later)
Table 5-17. Voice Command (software version 3.00 or later)
Selection Description
Enable
This setting enables Telligence Voice Command control of the GMA 35. Enabling
this setting is not covered under this STC.
Disable (Default) Telligence Voice Command is not enabled.
NOTE
The Voice Command setting will be unavailable until an RS-232 port is configured for
GMA Format 1.