 This is because there are only eight different states in which an 8VSB signal can be in at any one moment; thus, like all digital transmissions, very little signal is required at the receiver in order to decode it.Nonetheless, this limit is often too low for many stations to reach many rural areas, which was an alleged benefit in the FCC's choice of ATSC and 8VSB over worldwide-standard DVB-T and its COFDM modulation.Additionally, without the hierarchical modulation of DVB, signal loss is complete, and there is no switch to a lower resolution before this occurs.