News from Rohde & Schwarz
Magazine for test & measurement and radio communication
News from Rohde & Schwarz Issue 2000/I - 166
Spectrum Analyzer FSP: Medium class aspiring to high end
Playing right at the top of the high-end class are Spectrum Analyzers FSE and Signal Analyzers FSIQ from Rohde & Schwarz. After all, their RF performance, measurement speed and accuracy plus flexibility make them suitable for even the most demanding applications. New on the scene are the attractively priced Spectrum Analyzers FSP that, although medium class, are able to offer similar performance. And in some respects they even outdo the top performers.
Spectrum Analyzer FSP: Medium class aspiring to high end
Ground Radios Series 4400: Software-based radios for professional use
The new Series 4400 radio generation (M3SR for multiband, multimode, multifunction surface radio) is based on a powerful uniform platform. The open system architecture surmounts the drawbacks of conventional LOS radios, characterized by different platforms and devices for various frequency bands and applications. Like its successful predecessors of Series 400U, the application range of Series 4400 radios covers air traffi c control through air defence to complex naval communication systems.
Ground Radios Series 4400: Software-based radios for professional use
Signal Generator SMIQ: Fit for 3G with new options
Last year the frequency range of Vector Signal Generator Family SMIQ was extended to 6.4 GHz. This year the emphasis is on upgrading SMIQ for third-generation mobile radio (3G). The versatility of the successful generators has been boosted by extra options and especially by a new version of the modulation coder.
Signal Generator SMIQ: Fit for 3G with new options
TV Test Transmitter SFQ: SFQ goes North American with digital TV standard ATSC
TV Test Transmitter SFQ has proven itself as a platform for the new digital TV modulation methods introduced in Europe: as a universal test signal source in the development, production, quality control and servicing of all components employed in video and audio data transmission. The transmitter generates standard modulation signals for all the digital methods involved, for terrestrial emission (DVB-T), cable transmission (DVB-C) and transmission via satellite (DVB-S). The new model 30 includes yet another standard: the digital terrestrial TV transmission standard ATSC recently introduced in North America.
TV Test Transmitter SFQ: SFQ goes North American with digital TV standard ATSC
Digital Direction Finder DDF190: Now from 0,5 MHz through 3000 MHz
Digital Direction Finder DDF190 was originally designed for the VHF-UHF frequency range covered by the two DF Antennas ADD190 (20 MHz to 1300 MHz) and ADD071 (1300 MHz to 3000 MHz). In response to the great success of this DF family and the requests of many customers for a favourably priced and compact DF solution in the HF range too, Rohde & Schwarz has extended the direction finder accordingly.
Digital Direction Finder DDF190: Now from 0,5 MHz through 3000 MHz
Web over DTV: Cost-attractive service through DVB: Transmission of extra data in Web format
Web over DTV is a simple and cost-attractive solution for distributing Internet resources among TV viewers, for example, and for allowing TV providers to offer additional services with their programs. This service can be implemented by means of the Rohde & Schwarz DTV IP Inserter and DTV Web CarouselTM software.
The underlying principle is to insert selected Internet data in IP format into the MPEG2 data stream of a DVB transmitter for broadcasting together with the TV signal via an antenna. The recipient can store this information in his PC and view it using a standard Web browser.
Web over DTV: Cost-attractive service through DVB: Transmission of extra data in Web format
Content Management System eidonXbase: Datahbase-supported information management
The technical documentation department of the service center at the Rohde & Schwarz Cologne plant offers allround solutions for the complete field of modern publishing. Cooperating with eidon GmbH, the Cologne specialists offer software products for information management. The eidonXbase Content Management System is of primary importance for documents in SGML, XML and CGM formats, plus comprehensive services to create system solutions for complex documentation and information tasks.
Content Management System eidonXbase: Datahbase-supported information management
I/Q Modulation Generator AMIQ: New models 03 and 04 as well as digital I/Q output option
Since its successful market launch two years ago, I/Q Modulation Generator AMIQ has undergone intensive upgrading, which considerably increased its versatility. Together with the WinIQSIM™ software, the previous model enabled generation of a huge number of waveforms covering a wide range of applications. The new models AMIQ03 and 04 once again substantially widen the spectrum of applications.
I/Q Modulation Generator AMIQ: New models 03 and 04 as well as digital I/Q output option
Microwave Signal Generator SMR: SMR as tracking generator for Vector Network Analyzer ZVM
The four models of the SMR family of signal sources cover the frequency range up to 20 GHz (SMR20), 27 GHz (SMR27), 30 GHz (SMR30) and 40 GHz (SMR40). All have a lower limit frequency of 1 GHz, which can optionally be extended down to 10 MHz. The immediate advantages of SMR are small size, light weight, high performance and an extremely attractive price. The brand-new Vector Network Analyzer ZVM extends the frequency range of the successful ZVR analyzer family up to 20 GHz. The two units together - SMR and ZVM - are an ideal combination to make complex RF measurements child’s play.
Microwave Signal Generator SMR: SMR as tracking generator for Vector Network Analyzer ZVM
Calculating measurement uncertainty of conformance test systems for mobile phones:
Conformance tests on mobile phones call for utmost RF accuracy. ETSI test specification ETR028, for example, deals with the subject of "uncertainties in the measurement of mobile-radio equipment". In conformance test systems a reasonable compromise has to be found between measurement uncertainty, costs, automation and test time. This article shows, by way of example, how measurement uncertainties in conformance test systems from Rohde & Schwarz can be determined.
Calculating measurement uncertainty of conformance test systems for mobile phones:
Coverage Measurement Software ROMES 3: Acquisiton, analysis and visualization of data in coverage measurements
Communication with seamless coverage and without interference, reliable data transmission at an acceptable speed these and many other quality criteria are decisive for the success of a mobile-radio network on the market. To enable network operators to provide the required quality - and thus be commercially successful - Rohde & Schwarz offers with its TS 995x product line hardware and software for all standards available today. Common to all systems is the modular and versatile Measurement Software ROMES 3.
Coverage Measurement Software ROMES 3: Acquisiton, analysis and visualization of data in coverage measurements
Encryption Software SafeIT: Sensitive data? Play it safe
Despite all the advantages of electronic data transfer, one has to bear in mind that public communication paths such as PSTN, ISDN and especially the Internet are at a very high risk as far as the confi dentiality and integrity of transmitted data are concerned. An effective solution to this problem is encryption of sensitive data, eg by the user-friendly and cost-effi cient Encryption Software SafeIT from the Rohde & Schwarz subsidiary SIT.
Encryption Software SafeIT: Sensitive data? Play it safe
Power Reflection Meter NRT: Fit for 3G digital mobile radio
Power Reflection Meter NRT has fi rmly established itself as a tool for testing digital mobile radio equipment, especially in the role of measuring the transmitted power of base stations during production, in service and for commissioning and installation. Major factors in its success are the high accuracy of Power Sensors NRT-Z43 and NRT-Z44, the simpler handling compared with a terminating power meter, plus the possibility of operating the two sensors directly from a PC or laptop. Now NRT has been upgraded to measure components of third-generation mobile radio (3G).
Power Reflection Meter NRT: Fit for 3G digital mobile radio
Optimizing digital TV networks: QoS maintained automatically
Network operators are naturally interested in offering as many programs as possible in one transmission channel. But the limits are reached when high compression starts producing visible artifacts that degrade picture quality. Digital Video Quality Analyzer DVQ automatically detects such defects and helps to maintain quality of service (QoS).
Optimizing digital TV networks: QoS maintained automatically
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/
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