NAB 2010: Harris Moves Mobile DTV into 700 MHz
Harris and LG are taking their mobile DTV technology into 700 MHz, the spectrum recently abandoned by TV broadcasters in the digital transition. Harris announced a new Scalable Full-Channel Mobile Mode system at its NAB press conference Sunday. The system “allows the mobile signal to take over the full broadcast channel, except for a 400 kbps barker channel that regular DTV receivers can get to let them know there’s mobile content,” writes a correspondent for Television Broadcast.
Broadcasters are required by the FCC to transmit at least one standard-definition channel in their 6 MHz of spectrum, but licensees in the 700 MHz band are not held to the same requirement.
Harris said the technology was requested by “700 MHz operators.” Verizon and AT&T took the bulk of the spectrum licenses, which cover the United States, in the 700 MHz auctions.
The SFCMM system will enable 16 video channels in 6 MHz and be backwards compatible with A/153 to the extent that data is transmitted in those modes. It’s been submitted to ATSC for consideration. LG will rush receiver chips. Harris is doing a “functional hardware” demonstration in its booth.
Harris has provided the mobile-DTV equipment for about 40 U.S. broadcasters, 36 of them currently transmitting mobile DTV, the company said.