Before revision: The VDL Mode 2 Physical Layer specifies the use in a 25 kHz wide VHF channel of a modulation scheme called Digital 8-Phase Shift Keying providing a data rate of Differential 8-Phase-shift keying with a symbol rate of 10500 symbols per second.
After revision: The VDL Mode 2 Physical Layer specifies the use in a 25 kHz wide VHF channel of a modulation scheme called Differential 8-Phase-shift keying with a symbol rate of 10500 symbols per second.