Set Com Channel Spacing - Garmin GTN 650Xi Series Pilot's Manual

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Set COM Channel Spacing

The unit supports channel tuning for both 8.33 kHz and 25 kHz channels within
radio-frequency range. Channel spacing is set to 25.0 kHz by default.
8.33 kHz
8.33 kHz step configuration
is available for European
operations.
If flying in a region where 8.33 kHz channel spacing is available, set the COM
radio to 8.33 kHz to prevent the loss of any stored or recently used frequencies.
2-26
Tapping COM Channel Spacing toggles the
transceiver channel spacing between 8.33 kHz
and 25.0 kHz.
COM radio operates in the
aviation voice band, between
118.000 and 136.975 MHz,
in 25.0 kHz steps.
Pilot's Guide
25.0 kHz
190-02327-03 Rev. C