The better reception of ATSC 3.0 is NOT due to the video codec used. It is due, however, to the multi-carrier COFDM modulation used in ATSC 3.0, which provides a much more robust and stable signal in comparison to the very fragile, inferior single-carrier 8VSB modulation used in the current ATSC 1.0 standard. COFDM is used in cell phone networks and with other digital TV and radio standards around the world, which includes DVB-T/T2, ISDB-T, DTMB, DAB/DAB+, HD radio, SiriusXM satellite radio, and others. The primary advantage of COFDM is its performance in multipath and mobile signal environments, especially in comparison to the 8VSB modulation used in ATSC 1.0. The primary reason why the current ATSC 1.0 signals break up so easily on windy days or when someone moves around in a room, or in indoor environments is due to the inherent weakness of 8VSB when it comes to multipath interference. In addition to the advantage COFDM has in multipath signal environments compared to 8VSB, it also has an advantage when it comes to Single Frequency Networks (SFN). Without getting into many technical details, SFNs are much easier to implement with a COFDM system than with an 8VSB system because the extra multipath interference created by the multiple stations on the same frequency actually enhances the signal and increases capacity as long as the stations are in sync with each other and are within the guard interval parameters. With 8VSB, an SFN can be done but it is much more difficult than with COFDM because it requires terrain shielding in order to prevent harmful interference between two transmitters on the same frequency. Basically, this is the reason why ATSC 3.0 signals are much more robust and mobile-friendly compared to the current ATSC 1.0 standard.