ATSC 3.0 and SRT (Secure Reliable Transport) are two distinct and arguably opposing technologies expected to star at next week’s NAB show, but who will be the key vendors drawing battle lines in the sand in Las Vegas? We’ve swept up and dug into a handful of pre-NAB announcements to whet the appetite here before Faultline Online Reporter reports directly from the ground next week. Unlike at its more fashionable younger brother CES, video technology vendors have more of a voice at NAB and the show’s importance to the TV ecosystem therefore cannot be overstated. First off is a product launch from compression company V-Nova, rolling out an updated cloud-based SaaS transcoding and delivery platform for its enhanced Perseus Plus…