DTTB Transmission Implementations
Spectrum “regrowth” or “spectrum spread” is a mirror into what is happening within the modulated spectrum.
Although filtering of the spectrum spread is required for the control of adjacent channel interference, such filtering does not change the the level of intermodulation or noise.
Implementations must ensure that under conditions of maintenance or partial failure that the maximum allowable Transmission C/N of 43 dB is not exceeded.