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1-16
Garmin GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. B
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
1.7 Selecting Com Frequencies
Large and Small Knobs
(Frequency Adjust).
Press to Toggle Com
and Nav Functions.
Volume and
Squelch
Active Com Frequency
Standby Com Frequency
Com Standby
Editing Window
Standby Frequency
Backspace Key
Standby Frequency
Monitor Key
Frequency
Transfer
(Flip/Flop)
Key
Find
Frequency
Key
Enter Key
Numeric Keypad
Figure 1-19 Com Radio Frequency Selection Page
To switch between Com and Nav frequency selection
Tuning control normally remains in the Com window and will return after 30
seconds of inactivity. If you wish to select a VOR/localizer/ILS frequency, press
the small right knob momentarily to make the Nav window active for editing.
The Standby Nav frequency will be highlighted briefly to indicate that it is active
for editing. The standby frequency in blue is active for editing by the large and
small right knobs.
Method 1: Select a Nav/Com frequency using the small and large right rotary
knobs
1. Turn the large right knob to select the desired megahertz
(MHz) value. For example, the “119” portion of the frequency
“119.30”.
2. Turn the small right knob to select the desired kilohertz
(kHz) value. For example, the “.30” portion of the frequency
“119.30”.
3. Touch the Com or NAV window to flip/flop the Active and
Standby frequencies. You can also press and hold the small
right knob to transfer the standby frequency to the active
window.