About the T-DMB/DAB Option
R&S
®
SMCVB-K156
12
User Manual 1179.1029.02 ─ 02
3
About the T-DMB/DAB Option
DAB, DAB+ and T-DMB are OFDM-based terrestrial standards. DAB and DAB+ are
designed for audio broadcasting. DAB+ uses advanced audio compression techniques.
T-DMB is designed for audio and video broadcasting.
The transmission standard complies with specification
The input interface complies with specification
3.1
Required Options
The equipment layout for generating T-DMB/DAB signals includes:
●
Base unit
●
Option Enable Broadcast Standard (R&S
SMCVB-K519)
●
Option T-DMB/DAB (R&S
SMCVB-K156)
3.2
About DAB/T-DMB
The R&S
SMCV100B enables you to generate signals in accordance with the Digital
Audio Broadcasting (DAB)/Terrestrial Digital Multimedia Broadcasting (T-DMB) stan-
dard.
The generated signals are compliant with ETSI EN 300 401 standard. Via the user-
friendly graphical interface of R&S
SMCV100B, you can adjust several DAB signal
parameters. You are enabled to generate a signal corresponding to one of the four
standard transport modes, Transmission Mode I, II, III or IV. You can also choose to
enable or disable channel coding, time interleaving and/or pseudo noise scrambling.
The R&S
SMCV100B allows you to choose between different data sources. You can
either use some of the predefined data sources (two different pseudo noise sequen-
ces, fixed all “0”, fixed all “1”) or you can use your own ETI (Ensemble Transport Inter-
face) compliant source file. To create an ETI compliant source file, you can for instance
use the R&S STI Ensemble Mux DM001 or the R&S ETI Builder. However, the ETI
source file must fulfill some prerequisites.
The DAB system is designed for delivery of high-quality digital audio programs and
data services for mobile, portable and fixed reception from terrestrial or satellite trans-
mitters in the Very High Frequency (VHF)/Ultra High Frequency (UHF) frequency
bands as well as for distribution through cable networks.
The DAB system is designed to provide spectrum and power efficient techniques in ter-
restrial transmitter network planning, known as the Single Frequency Network (SFN)
and the gap-filling technique. The DAB system is suitable for satellite as well as hybrid/
mixed terrestrial/satellite broadcasting, using a simple, nearly omni-directional receiv-
ing antenna. The DAB system meets the required sharing criteria with other radio com-
munication services.
About DAB/T-DMB