Mobile DTV is still very young here in the States despite having been around in other countries for a long time. DTV equipment and programming operations are relatively scant in the US today. LG and Harris Corporation have announced that they have teamed up to bring tech to market what supports scalable full-channel mobile mode TV. The tech is being demonstrated with functioning hardware showing transmission and receiving of DTV mobile signals.
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The big feature of the new tech is that as many as 16 different video programs and be sent in the same 6MHz bandwidth used by a TV broadcaster. The new tech has been proposed as a standard to the ATSC and will be seen first at the NAB convention going this week.
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The tech trims the main digital program to a "mere trickle" of data. This allows the broadcaster to advertise available mobile programs on the service to viewers at home. This frees up most of the 19.5Mbps bitstream in the 6MHz band for transmission of programs.