AeroNav 900/880 Series Pilot’s Guide
89000039-010
1-32 System Overview Rev 1 May 2019
Another capability that can be added during installation is a
remote com frequency swapping function that performs the same
action as pressing the bezel Frequency Swap button, including
holding it down to tune the emergency frequency. Typically, the
remote com frequency function is installed as a dedicated button
on the yoke, allowing frequency swapping without removing
hands from the controls.
Other remote tuning and frequency swapping capability is present
when dedicated third-party radio control display units are wired
into the aircraft. Usually in these cases, when the radio control
display unit is active, the Active and #1 Standby frequencies are
only displayed on that external control display unit and not on the
AeroNav, even though the actual radio is still housed inside the
AeroNav.
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