News from Rohde & Schwarz
Magazine for test & measurement and radio communication
News from Rohde & Schwarz Issue 1999/III - 163
Getting the picture on picture quality: Digital Video Quality Analyzer DVQ
Automatic assessment of picture quality allowing for criteria of subjective perception by the human eye is something long dreamt of by those concerned with TV measurements. Rohde &Schwarz is now staging a world premiere with its Digital Video Quality Analyzer DVQ, an instrument designed to perform this task excellently and in realtime. The patented method of video data analysis requires no original picture as a reference and shows the way to a whole variety of applications in network monitoring as well as in development, production and quality control.
Getting the picture on picture quality: Digital Video Quality Analyzer DVQ
Signal Generators SMIQ04B and SMIQ 06B: I/Q modulation now up to 6.4 GHz
Radiocommunication growth continues unabated. The high density of occupancy in the range below 3 GHz means that there will be an increasing need for measuring instruments for the range above 3 GHz, where applications like WLAN (wireless local area network), WLL (wireless local loop) and ETC (electronic traffic control) have become established. Other future-oriented applications are already on the way. In line with the trend, Rohde & Schwarz has extended the frequency range of Signal Generator Family SMIQ.
Signal Generators SMIQ04B and SMIQ 06B: I/Q modulation now up to 6.4 GHz
Baseband Fading Simulator ABFS: Reduced costs through baseband simulation
Radio channel characteristics can seriously impair signal transmission between a transmitter and a receiver, in particular a mobile one. The new Baseband Fading Simulator ABFS from Rohde &Schwarz generates signals allowing simulation of real receiving conditions in mobile applications. In this way receivers can be checked for practical performance during development and acceptance testing. The fact that ABFS simulates signals at baseband level also cuts costs.
Baseband Fading Simulator ABFS: Reduced costs through baseband simulation
Signal Analyzer FSIQ: Two spectrum analyzer families for third-generation mobile radio ...
Advantest and Rohde &Schwarz have been cooperating in sales and design since 1992. The products of the two partners, particularly the spectrum analyzer families, are aimed at different market segments and customers and so perfectly complement each other. This strategy continues with the introduction of Spectrum Analyzers R 3267 and R 3273 and Signal Analyzer FSIQ [1], specially developed for measurements on mobile radios of the third generation. The two instrument families suit any requirement and budget and come from a single source.
Signal Analyzer FSIQ: Two spectrum analyzer families for third-generation mobile radio ...
DAB Transmitters NA6... and NL 6...: Cost cutting through modularity and plug play
DAB transmitters are mainly used in single-frequency networks in which many transmitters of a similar type are combined. So the costs of purchasing and operating such transmitters can be drastically reduced by standardized logistics and servicing concepts. Redundancy and the possibility of replacing important components during operation make for a high degree of availability and frequently do away with elaborate reserve concepts. The precondition for these cost-reducing effects is an optimized and completely modular transmitter concept.
DAB Transmitters NA6... and NL 6...: Cost cutting through modularity and plug play
VLF-HF Receiver EK 2000: A "quick-change artist"with every modulation in its repertoire
With VLF-HF Receiver EK 2000 Rohde &Schwarz is adding an attractive receiver featuring state-of-the-art technology to its XK 2000 family of shortwave radio equipment. This receiver is able to handle all relevant types of modulation, includes an HF modem as an option, and can also serve as a modulator for separate transmitters. In next to no time the receiver can be changed into a transceiver or exciter.
VLF-HF Receiver EK 2000: A "quick-change artist"with every modulation in its repertoire
PSK Demodulator GM097: Detecting signals that hardly differ from noise
Modern digital HF modems handle many different types of modulation. Radio detection is therefore confronted with a variety of signals, a number of which can hardly be distinguished from noise. PSK Demodulator GM097 is able to reliably detect signals where conventional instruments are just fumbling in the dark.
PSK Demodulator GM097: Detecting signals that hardly differ from noise
Security Management System BSI Tool: Secure UNIX Administration
The transition to an information society means that the factor information as well as the technology used for information processing (IT) assume strategic importance. The role of IT far exceeds cost savings through rationalization. Effective and efficient use of information is an inestimable competitive advantage. So protection of these valuable resources is of vital importance. Information is often processed in complex networks, meaning greater outlay and effort for consistent IT security. This article shall illustrate that such efforts are nevertheless manageable with the support of dedicated tools like the BSI Tool Secure UNIX Administration.
Security Management System BSI Tool: Secure UNIX Administration
Conversion of C/N or SNR to Eb/N0 in DVB: Test Hint
Conversion of C/N or SNR to Eb/N0 in DVB: Test Hint
One of the first on the market – now in use worldwide: DVB-T Modulator SDB-M
The new DVB-T television standard had hardly been issued when in May 1997 Rohde&Schwarz, as one of the first producers worldwide, already launched its new DVB-T Modulator SDB-M [1]. Besides its use as an integrated modulator in Rohde&Schwarz's DVB-T Transmitter Family NV500 [2], SDB-M has proved itself a successful solution in design and production of many renowned companies.
One of the first on the market – now in use worldwide: DVB-T Modulator SDB-M
Measurement software and test cases for new, fast GSM data services: HSCSD test software for GSM Phase 2+
High Speed Circuit Switched Data (HSCSD) is a new service that will be introduced in the next expansion phase 2+ for GSM standards. HSCSD allows a substantially higher data transfer rate than with present GSM networks (9600 kbit/s). With the introduction of the new service, manufacturers of mobile and base stations will need to perform numerous new tests. Digital Radiocommunication Test Set CRTC from Rohde&Schwarz, two of which can be combined to produce a multislot test platform CRTx-DUO [1], is ready for the new service.
Measurement software and test cases for new, fast GSM data services: HSCSD test software for GSM Phase 2+
Cost-effective and versatile alternative to special-purpose phase noise test sets: Phase Noise Measurement Software FSE-K4 for Analyzers FSE/FSIQ
The phase noise of oscillators essentially determines the transmission quality of radiocommunication systems. In a transmitter, it affects the modulation quality of the transmit signal and the power radiated into the adjacent channel. In a receiver, it determines selectivity and demodulation quality. The higher the order of modulation, the more important is low phase noise of the conversion oscillators, for example to produce low bit error rate.
Cost-effective and versatile alternative to special-purpose phase noise test sets: Phase Noise Measurement Software FSE-K4 for Analyzers FSE/FSIQ
Test now to save costs later: Installation test systems for automobile industry
For a long time a radio was the only form of communication found in automobiles. This has changed a lot in the past few years. Mobile radios, GPS navigation equipment and TV sets are increasingly becoming standard in many modern vehicles (FIG 1). The equipment is ready tested but normally it is manually fitted, and this means that installation faults cannot always be excluded. The result can be expensive corrections or even recall actions on a worldwide scale. All this can be avoided: Rohde&Schwarz offers custom-tailored test equipment and system solutions for checking correct installation during vehicle production.
Test now to save costs later: Installation test systems for automobile industry
EMC testing more important than ever:
The Regulatory Authority for Telecommunications and Post (Reg TP) in Germany checks all units of equipment and systems for compliance with EMC regulations. The importance of EMC testing is underlined by the results obtained last year: a surprisingly large number of “EMC offenders” are trying to get their products onto the market.
EMC testing more important than ever:
Trunked Radio System ACCESSNET® proves a blessing at Pope’s visit:
Early in October 1998 Pope John Paul II visited Croatia for the second time during his pontificate. The focus of this visit was the beatification of Cardinal Alojzije Stepinac, which was to take place at the pilgrimage town of Marija Bistrica. Rohde&Schwarz’s ACCESSNET® system took care of the wide-ranging communication needs at this major event.
Trunked Radio System ACCESSNET® proves a blessing at Pope’s visit:
Global players under the sea: market leader for fault location in submarine cables
The essential links that ensure modern worldwide communication can be found at the bottom of the seven seas. Submarine cables allow transmission of enormous and ever increasing amounts of data. Rohde&Schwarz offers T&M equipment dedicated to quickly and accurately locating faults in these cables. Together with its partners, Rohde&Schwarz has become a worldwide leader in this market segment.
Global players under the sea: market leader for fault location in submarine cables
ROHDE & SCHWARZ GmbH & Co. KG
Muehldorfstrasse 15, 81671 Munich, Germany
Phone: +49 89 41 29 - 0
Fax: +49 89 41 29 12 164
e-Mail: CustomerSupport@rohde-schwarz.com
Internet: http://www.rohde-schwarz.com/
radiocommunications -
test and measurement -
broadcasting -
it security
sitemap