Aircraft station radio frequency range. An aircraft station shall be capable of tuning to any of the channels in the range specified within 100 milliseconds after the receipt of an autotune command.
Ground station radio frequency range. A ground station shall be capable of operating on its assigned channel within the radio frequency range detailed
Common signalling channel. Frequency 136.975MHz shall be reserved as a worldwide common signaling channel (CSC) for VDL Mode 2.