GTN 625/635/650 TSO Installation Manual
190-01004-02
Page 6-24
Rev. F
6.6.12
VOR/LOC/GS Configuration Page (GTN 650 Only)
Access the VOR/LOC/GS Configuration page, as
shown in Figure 6-23, by touching the ‘VOR/
LOC/GS’ key from the GTN Setup page. This
page allows you to verify and calibrate 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.
ENABLE/DISABLE NAV RADIO
To enable or disable the NAV radio, touch the key
to toggle between ‘Enabled’ and ‘Disabled’. The NAV radio defaults to enabled state.
CALIBRATE OBS RESOLVER
To calibrate the OBS resolver, touch the ‘Calibrate’ key on the VOR/LOC/GS Configuration page, as
shown in Figure 6-23. Next, select 150
˚
on the OBS, then touch the OK key, as prompted on the display.
Touch ‘OK’ after the calibration is complete. Verify OBS operation by checking that the course displayed
on the GTN is within 2° of the selected course.
ARINC 429 CONFIGURATION SPEED (RX AND TX)
SDI
DME MODE
Selection
Description
Low
Standard low-speed ARINC 429 (nominally 12.5 kilobits per second)
High
High-speed ARINC 429 (nominally 100 kilobits per second)
Selection
Description
Common
TX: Generates all 429 outputs with SDI = 0.
VOR/ILS 1
Number 1 (Pilot) VOR/ILS Receiver
TX: Generates all 429 outputs with SDI = 1.
VOR/ILS 2
Number 2 (Copilot) VOR/ILS Receiver
TX: Generates all 429 outputs with SDI = 2.
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 6-23. VOR/LOC/GS Configuration Page
Summary of Contents for GTN 625
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