Installation Instructions

GTN 6XX/7XX AML STC Installation Manual 190-01007-A3
Page 5-30 Rev. 4
5.5.1.11 VOR/LOC/GS Configuration Page
(GTN 650/750 Only)
Select the VOR/LOC/GS key from the GTN Setup page by
touching the key on the display shown in Figure 5-4 above.
This page allows you to verify the CDI outputs from the
VOR/LOC/GS receiver as well as the OBS resolver input to
the VOR receiver. It also allows you to select the format for
the DME tuning data.
NAV Radio
To enable or disable the NAV radio, touch the key to toggle
between Enabled and Disabled. The NAV radio defaults to
the enabled state.
Calibrate OBS Resolver
To calibrate the OBS resolver, touch the Calibrate key from
the VOR/LOC/GS Configuration page. Next, select 150˚ on
the external CDI/HSI, then touch the OK key when prompted
by the display. Touch OK after calibration is complete. Verify
OBS operation by checking that the selected course displayed
at the top of the page is within 2° of the selected course.
Table 5-18. ARINC 429 Configuration Speed (TX)
Selection Description
Low Standard low-speed ARINC 429 (nominally 12.5 kilobits per second)
High High-speed ARINC 429 (nominally 100 kilobits per second)
Table 5-19. SDI
Selection Description
Common Generates all 429 outputs with SDI = 0.
VOR/ILS 1 Number 1 (Pilot) VOR/ILS Receiver
TX: Generates 429 outputs with SDI = 1.
VOR/ILS 2 Number 2 (Copilot) VOR/ILS Receiver
TX: Generates 429 outputs with SDI = 2.
Table 5-20. DME Mode
Selection Description
Directed freq 1 If the GTN is connected to a multi-channel ARINC 429 DME, channel 1 of
that DME is tuned. “Directed freq 1” should be selected if a single-channel
ARINC 429 DME is to be tuned.
Directed freq 2 If the GTN is connected to a multi-channel ARINC 429 DME, channel 2 of
that DME is tuned.
Figure 5-17. VOR/LOC/GS
Configuration Page