Does the XFER switch on the CNC toggle between the active and standby frequency?

The XFER switch on the Control Navigation Computer (CNC) is designed to facilitate the transition between active and standby frequencies. When the switch is engaged, it allows the pilot to quickly transfer the standby frequency into the active frequency slot. This functionality is particularly important for maintaining effective communication and navigation capabilities, ensuring that pilots can swiftly respond to changing operational needs without having to manually input new frequency settings.

This mechanism enhances situational awareness as pilots can monitor a secondary frequency while keeping the primary frequency active, thereby streamlining communication processes during flight operations.