So let’s drill down country-by-country and look at how digital TV rollouts are progressing globally. The
following tables aren’t exhaustive, but they do capture those furtherest along their DTV deployment path.
First, those countries who have adopted DVB-T:
And now those pesky ATSC countries. The US and South Korea are furthest
along here, with Canada and Mexico yet to set hard time lines for analog switch off let alone offering definitive plans
for reception of DTV on mobile handsets.
While things look all rosy to us on the periphery, South
Korea’s mobile DTV status is actually quite convoluted since their version of terrestrial DMB is (gasp) different
from the more generic version developed within the world DAB forum. However, the two DAB variants are very similar and
are expected to use the same device hardware. Also, South Korea is running both satellite DMB and terrestrial DMB
services. S-DMB is nationwide operating at 2.6 GHz thus requiring heaps of terrestrial transmitter dishes scattered
about cities in order to keep signals flowing around buildings and underground. As a bonus though, those higher
frequencies mean very small antennas (which we love) on S-DMB mobile devices. T-DMB is operated as a regional service
at the low, low 200 MHz frequency, thus requiring those big ol’ telescoping antennas we hate.
ATSC countries look a little somethin’ like this:
And just for kicks, let’s throw down the stats for Japan who have
rolled out their proprietary ISDB-T solution yet are fervent supporters of T-DMB…outside of Japan anyway. Brazil
is also considering ISDB-T after finding it superior to both DVB-T and ATSC for their needs.
Tomorrow, digital TV device pr0n