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3-1190-01004-03 Rev. B
Garmin GTN 625/635/650 Pilot’s Guide
Foreword
Getting
Started
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Music
Utilities
System
Messages
Symbols
Appendix
Index
3 NAV/COM
(GTN 650 NAV/COM AND GTN 635 COM ONLY)
The GTN 650 features a digitally-tuned VHF Com radio that provides a
seamless transition from communication to navigation and digitally-tuned Nav/
localizer and glideslope receivers. The GTN 635 has a Com radio only. The Com
radio operates in the aviation voice band, from 118.000 to 136.975 MHz, in
25 kHz steps (default). For European operations, a Com radio configuration of
8.33 kHz steps is also available.
Large and Small Knobs
(Frequency Adjust).
Press to Toggle Com
and Nav Functions.
Volume and
Squelch
On/Off Knob
Active Com Frequency
Standby Com Frequency
Com Standby
Editing Window
Frequency Monitor
Annunciation
Backspace Key
Frequency
Monitor Key
Frequency
Transfer
(Flip/Flop)
Key
Find
Frequency
Key
Enter Key
Numeric Keypad
Figure 3-1 Nav/Com Controls
Xfer
Recent
Nearest - Filter - Com - Nav
Flight Plan
User
Monitor
Keypad
Find
Airport
VOR
Airport
FSS
ARTCC
Figure 3-2 Nav/Com Functional Diagram