R&S®SFU Broadcast Test System
Analog and digital TV multistandard platform with signals for antenna, satellite and cable
Video goes mobile
- DTMB
- DVB-H
- T-DMB/DAB
- ISDB-T (partial reception)
- MediaFLO™
DTMB (GB20600 - 2006) is the Chinese DMB-T, which in a modified version is also used for handheld reception. DTMB has evolved from DMB-T.
The following standards are terrestrial transmission methods for broadcast applications with mobile receivers such as mobile phones and PDAs.
The DVB-T/H coder provides the following functions: the newly introduced 4k mode, use of the TPS carriers for time slicing signaling, the additional 5 MHz channel bandwidth and corresponding native and in-depth symbol interleavers as well as MPE forward error correction (FEC). Hierarchical coding is also possible.
T-DMB was developed in Korea and is based on the digital audio broadcasting (DAB) standard known in Europe, which was also developed for mobile reception with radios. The T-DMB/DAB coder in the R&S SFU supports both the Korean and the European transmission standards.
With mobile ISDB-T in accordance with ARIB 1.5, only one of altogether 13 available segments is used for transmission. The remaining 1 segments can transmit TV programs for stationary reception.
MediaFLO™ was developed and standardized by the American company QUALCOMM. The baseband signal in this proprietary standard is based on a transport stream with 188 bytes. MediaFLO™ is currently used in a nationwide network in the USA. QPSK and 16QAM methods are used as OFDM modulation at a bandwidth of 5.5 MHz. The data rates transmitted to the mobile receiver range between 50 kbit/s and 1 Mbit/s.
