News from Rohde & Schwarz Multimedia Rohde & Schwarz right there from the start Radio test and measurement Innovation in mobile phone testing ATC radiocommunications Now with RCMS and 8.33-kHz channel spacing 152 Number 152 1996/III Volume 36 Digital broadcasting and multimedia communi- cation are the topics of our final article (page 57) which breaches the gap between the world of ana- log sound and TV broadcasting and that of digital audio and video broadcasting with its interactive communication facilities. The photo on the cover is to give an impression of this multimedia world. For more information about digital TV see our articles on pages 17 and 20. Articles Michael Vohrer Digital Radio Tester CTS55 All-in-one service tester for GSM, PCN and PCS mobile telephones............4 Josef Wolf Spectrum Analyzer FSEM/FSEK Fast spectrum analysis now through to 40 GHz ...............................7 Jon Pedersen Calibration System TS9099 Automatic test equipment calibration to ISO 9000 ...........................10 Thomas Kneidel System Processor MERLIN GR2000 Powerful processor stands toughest conditions ...............................12 Hans-Günther Klarl; Series 200 and 400U radio equipment Martin Kessler Innovations in ATC radiocommunications: RCMS and 8.33-kHz channel spacing...14 Christoph Balz; Ernst Polz; TV Test Receiver Family EFA Walter Fischer Top fit for digital television...................................................17 Michael Fischbacher; MPEG2 Generator DVG and MPEG2 Measurement Decoder DVMD Harald Weigold Test equipment for digital TV in line with MPEG2 ............................20 Rainer Steen; 100/200-W Solid-State DAB Transmitter NL5010/5020 Johannes Steffens Terrestrial broadcasting of digital audio in L band ...........................24 Walter Deschler; TV Transmitter Test System TS6140 Gerhard Strauss Guarantee of high signal quality in TV transmitter networks ..................27 Franz Demmel; VHF-UHF Direction Finder DDF190 Raimund Wille Digital direction finding from 20 to 3000 MHz to ITU guidelines ............30 Application notes Wilhelm Kraemer EMC measurements up to 40 GHz with Microwave Signal Generator SMP ..........................................33 Tilman Betz Measurements on hearing aids with Audio Analyzers UPD and UPL..........36 Thomas Maucksch Quality testing of mobile phones using multitone audio analysis of Digital Radiocommunication Tester CMD.....................................38 Joachim Stegmaier Tailor-made applications in industrial automation with factory user port for Controller PSM .........................................40 Günter Wicker; Fast adaptive data transmission on shortwave Gerhard Greubel at up to 5400 bit/s via HF Modem GM2100 ...............................42 Refresher topic Peter Hatzold Digital modulation and mobile radio (III).....................................44 2 News from Rohde & Schwarz Number 152 (1996/III) Software Dr. Hans Waibel; PropWiz – Windows program for shortwave radio link Peter Maurer prediction ...................................................................46 Panorama Werner Mittermaier Digital Radiocommunication Tester CMD55 with new measurement functions ......................................................48 Andreas Schneider ACCESSNET® – a solution for communications in Russia.....................49 Klaus Wunderlich; Rohde & Schwarz test equipment in EMC test center of Peter Busch safety standards authority of Hesse ..........................................51 Jacques Stellamans SNCB uses R&S test system for planning and quality assurance in Belgian railway communications ..........................................52 Regular features Reference: EMC system solutions ............................................29 Marcus Gloger; Test hint: Peter Riedel Optimizing wireless local loop systems ......................................35 Klaus Danzeisen Patent: Frequency-selective measurement and display of frequency-dependent test parameters......................................47 Information in print ..........................................................53 Newsgrams .................................................................54 In memoriam Dr. Rohde .....................................................55 Press comments .............................................................56 Paul Dambacher Final article: Digital broadcasting and multimedia communication..............................................57 The future of sound broadcasting is digital – and Rohde & Schwarz is the perfect partner. The most recent member in our family of DAB transmitters is 100/200-W Solid-State Transmitter NL5010/5020 for the L band (page 24). Imprint Published by ROHDE & SCHWARZ GmbH & Co. KG Mühldorfstraße 15 D - 81671 Munich Telephone (0 89) 41 29-0 · international *(4989) 41 29-0 · Telex 523703 (rs d) · Editors: H. Wegener and G. Sönnichsen (German); G. Koranyi, I. Davidson, C. B. Newberry (English) · Photos: S. Huber · Circulation 100 000 three times a year · ISSN 0028-9108 · Supply free of charge · State company or position · Printed in the Federal Republic of Germany by peschke druck, Munich · Reproduction of extracts permitted if source is stated and copy sent to R & S Munich News from Rohde & Schwarz Number 152 (1996/III) 3 Articles Digital Radio Tester CTS55 an optimum combination of the GSM/ DCS features of Go/NoGo Testers CTD [1] and the in-depth testing of Digital All-in-one service tester for GSM, Radiocommunication Tester CMD [2; 3] for joint coverage of all aspects of PCN and PCS mobile telephones servicing from simple function tests through to repairs. Its brilliant, high- Digital Radio Tester CTS55 from Rohde & Schwarz is a cost-effective, compact resolution colour display makes using tester for all servicing, maintenance and repair work on GSM, PCN and PCS CTS55 a joy and allows it to show off mobile radiotelephones in a single unit. It therefore bridges the gap between pure its strong points, in particular the result go/nogo tests and sophisticated GSM measurement technology. graphics. FIG 1 Digital Radio Tester CTS55 provides fast FIG 2 CTS55 autotest automatically checks CTS55’s quick function test can be function testing combined with in-depth mobile all mobile phone characteristics on various RF called at the press of a button and phone tests to GSM, PCN and PCS. channels and displays result as go/nogo or nu- Photo 42 434 merically with out-of-tolerance warnings. produces all the important features of a mobile telephone on different RF channels. As well as a go or nogo Digital Radio Tester CTS55 (FIG 1) is a synthesis of fast function testing and classic measurement technology for GSM 900, DCS 1800 (PCN) and DCS 1900 (PCS) mobile radio systems. It is 4 News from Rohde & Schwarz Number 152 (1996/III) Articles display for the particular parameter uation. If required, a test report can be and an overall evaluation, test results output on a printer to show whether can also be shown in very simple nu- repairs are necessary or only as merical form with out-of-range displays backup documentation. When the too (FIG 2). A digital signal processor classic manual mode is used, all allows you to determine power ramp- measurements can be called up with a ing, phase and frequency error and continuous result display. This makes bit error rate in a form like that used alignments and troubleshooting easy if by Digital Radiocommunication Tester repairs have to be made. In particular, CMD. Not only can these functions be the graphic displays showing phase er- called during automatic test sequences, FIG 3 In manual mode CTS55 simultaneously ror, frequency error (FIG 4) and power in conjunction with other test facilities indicates all relevant test values and parameters on ramp (FIG 5) give an exhaustive de- they are also available in the classic its display. scription of the transmitter and make it manual mode. This second mode of easy to determine the causes of faults. operation enables CTS55 to fulfil all the The simultaneous display of the various requirements of a high-flexibility repair bit error rates and frame error rates tester. In addition to the wide range of with a user-selectable measurement digital result displays in a highly prac- interval gives you a relatively deep tical format (FIG 3), graphics for test understanding of receiver character- parameters such as power ramping or istics (FIG 6). phase error can be selected with a single keystroke. For in-depth analysis Operation of Digital Radio Tester there are zoom functions which simplify CTS55 is especially simple, with just six the interpretation of anomalies and so softkeys and easy-to-understand screen make servicing easier. prompts. A sophisticated menu struc- ture navigates almost automatically CTS55 has the following test and through the measurement, and the measurement facilities for fast testing multilingual user interface (English, Ger- and in-depth analysis of mobile FIG 4 Phase/frequency curve and numerical man, French, Italian, Dutch, Spanish) phones: display of current, average and maximum value prevents misinterpretations and incor- provide information about modulation charac- rect operation. Direct access softkeys • synchronization of mobile phones teristics of mobile phone. are used to control the tester. This also with base stations (simulated by includes calling tests and selecting CTS55), parameters; an ASCII keyboard can • registration (location update), also be connected. If an automatic test • incoming and outgoing call setup, sequence is being run,