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Transmitter, T&M solutions focus on mobile TV standards

Posted: 28 Mar 2006 ?? ?Print Version ?Bookmark and Share

Keywords:R&S SFU broadcast test system? DTV? digital television? R&S DVM? audio analyzer?

At next month's NAB trade show for broadcasting, Rohde & Schwarz will present its product portfolio under the "heading broadcast on the move." The test and measuring equipment and transmitter from Rohde & Schwarz aim to address new future-oriented standards such as DVB-H, MediaFLO and T-DMB.

The R&S SFU broadcast test system was developed for DTV standards such as 8VSB/ATSC, J.83/B, DVB-S2, DVB-S, DVB-T, DVB-H, DVB-C, DMB-TH/-T2, T-DMB, DAB and DirecTV. A new analog interferer and an interferer management option also complement the R&S SFU to handle transmission simulation. By using these options, the effect an analog TV interference signal has on the digital useful signal can be easily simulated, said the company.

The different instruments of the R&S DVM family are used to monitor, analyze, record and generate MPEG-2 transport streams. The R&S DVM-K12 template monitoring option is said to allow automatic monitoring of undesired changes in the transport stream and the programs it includes. The R&S DVM-K10 in-depth analysis option is expanded by real time buffer analysis. This function supports MPEG-2 and MPEG-4/AVC/H.264. Plus, the R&S DV-H264 transport stream library is now available for the R&S DVM400, R&S SFU and R&S DVRG. The library includes video content in different formats which are MPEG-4/AVC/H.264-encoded.

The R&S FSH3-TV is a handheld TV analyzer that is said to suit all digital cable standards, the digital terrestrial standard ATSC/8VSB and analog TV standards. Analog terrestrial TV transmitter and cable networks around the world are converted to digital transmission methods. Analog test and measurement equipment is still required, however, especially during the transition phase. The analyzer provides analog measurement functions such as FM deviation measurement for sound carriers. According to Rohde & Schwarz, its mobility makes the R&S FSH3-TV useful for servicing new installations and maintaining or repairing TV cable network or transmitter components.

Rohde & Schwarz is also adding two new audio analyzers to its Smart Instruments family with the R&S UP 300 and R&S UP 350 audio analyzers. The R&S UP 300 covers a frequency range from 10Hz to 80kHz, and its analog inputs and outputs are dual-channel. The R&S UP 350 also features digital audio interfaces with sampling rates from 32kHz to 192kHz. These interfaces expand the scope of applications to digital audio protocol and sampling rate measurements.

The R&S SV8000 transmitter platform for DTV standards has been designed for TV power up to 400W in the UHF band. Standby configurations, remote control interfaces and automatic digital pre-correction are also available.

Rohde & Schwarz will also present its new R&S SR8000 FM low-power transmitter for output power from 100W to 1kW. The transmitter is equipped with a digital exciter, and is remote-monitored and remote-controlled via SNMP and web interface.

The company offers a DVB-H inserter to complement the R&S DIP010 data inserter, providing the playout technology required for transporting multimedia data. For this purpose, the H.264 video encoder for DVB-H comes with a variable bit rate. The statistic multiplex principle is implemented: With DVB-H, several TV programs with different data rates are transmitted via one channel. The H.264 video encoder harmonizes these different requirements, ensuring optimum use of the transmission channel and allowing more programs per channel to be transmitted.




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