BALTIMORE — A consortium of broadcast technology developers reported doing field tests of ATSC 3.0 concepts over a single frequency network on the East Coast on Monday this week. (See “ONE Media Conducts ATSC 3.0 ‘Concept’ SFN Trials.”) One Media, Sinclair Broadcast Group, Teamcast, Acrodyne, Comark, Dielectric, GatesAir and LG contributed technology and elbow grease to the effort.