About the ATSC / ATSC-MH Option
R&S
®
SMCVB-K161
10
User Manual 1179.1035.02 ─ 02
3
About the ATSC / ATSC-MH Option
was adopted as the
candidate standard on December 1, 2008
under the logo "ATSC mobile DTV".
The ATSC-M/H standard adds mobile reception capability to the conventional ATSC/
8VSB standard. Like ATSC-A/53, it is based on the
higher immunity to interference is achieved by more efficient error protection mecha-
nisms in the baseband and by an expanded training sequence. In addition, it is now
considerably easier to set up an
due to the cyclic resetting of the trellis encoder.
The newly introduced slot structure facilitates the development of energy-saving
receivers.
ATSC-M/H uses IP-based MPEG AVC (H.264) video and HE AAC v2 audio (ISO/IEC
14496-3) for source coding.
Since the expanded error protection was inserted before the multiplexer in the prepro-
cessor, at least one program can be transmitted simultaneously in the conventional
8VSB.
The postprocessor must then distinguish between standard and M/H data and handle
these two data types separately.
In the R&S
SMCV100B, only the postprocessor is implemented, which means that to
vary M/H-specific parameters, different transport streams are needed.
3.1
Required Options
The equipment layout for generating ATSC / ATSC-MH signals includes:
●
Base unit
●
Option Enable Broadcast Standard (R&S
SMCVB-K519)
●
Option ATSC / ATSC-MH (R&S
SMCVB-K161)
Required Options
