So I'm confused, why couldn't you simply get an ATSC broadcast on a mobile device? Is it simply b/c the hardware to tune and decode it is too expensive/cpu hungry? If so, won't that not be the case in a few years (as hardware gets better and prices go down)? Seems like a short term solution to a non-existant problem.
The serious issue with regular ATSC is that it has poor resistance to things like movement. If you're trying to watch an ATSC broadcast in, say, a car, it's going to regularly break up due to the excessive doppler effect and changing multipath interference dynamics.
The ATSC has proposed two standards, E-VSB and ATSC-M/H, to fix these issues, although the former never took off. The standard does take bandwidth away from the regular ATSC HD channels for use with the mobile versions.
Reader Comments (Page 1 of 1)
scyber @ Jan 12th 2009 7:16AM
So I'm confused, why couldn't you simply get an ATSC broadcast on a mobile device? Is it simply b/c the hardware to tune and decode it is too expensive/cpu hungry? If so, won't that not be the case in a few years (as hardware gets better and prices go down)? Seems like a short term solution to a non-existant problem.
squiggleslash @ Jan 12th 2009 10:56AM
The serious issue with regular ATSC is that it has poor resistance to things like movement. If you're trying to watch an ATSC broadcast in, say, a car, it's going to regularly break up due to the excessive doppler effect and changing multipath interference dynamics.
The ATSC has proposed two standards, E-VSB and ATSC-M/H, to fix these issues, although the former never took off. The standard does take bandwidth away from the regular ATSC HD channels for use with the mobile versions.
scyber @ Jan 12th 2009 1:34PM
Thanks for that clarification. I never knew regular ATSC broadcasts has such issues with moving antenna.