NEWS 200/10 World‘s first coaxial power sensors up to 67 GHz Thermal power sensors featuring exceptional impedance matching, high accuracy and easy handling – for a wide range of applications GENERAL PURPOSE BROADCASTING SECURE COMMUNICATIONS Unique: spectrum analyzer For an efficient future: new TETRA professional mobile measures noise figure and gain liquid-cooled, VHF high-power radio: get started economically – in the 60 GHz range transmitters and expand as needed NEWS Published by Rohde & Schwarz GmbH&Co. KG Mühldorfstrasse 15 · 81671 München Customer Support Europe, Africa, Middle East | +49 89 4129 137 74 [email protected] North America | 1 888 837 87 72 (1 888 TEST RSA) [email protected] Latin America | +1 410 910 79 88 [email protected] Asia / Pacific | +65 65 13 04 88 [email protected] www.rohde-schwarz.com Editor and layout: Ludwig Drexl, Redaktion – Technik (German) English translation: Dept. 9MC7 Photos: Rohde & Schwarz Printed in Germany Volume 50 Circulation (German, English, French and Chinese) 80000 approx. 4 times a year ISSN 0028-9108 Supply free of charge through your nearest Rohde & Schwarz representative Reproduction of extracts permitted if source is stated and copy sent to Rohde & Schwarz München. PD 5214.0718.72 R&S® is a registered trademark of Rohde & Schwarz GmbH&Co. KG. Trade names are trademarks of the owners. CDMA2000® is a registered trademark of Telecommunica- tions Industry Association (TIA USA). The Bluetooth® word mark and logos are reg- istered trademarks owned by the Bluetooth SIG, Inc. and any use of such marks by Rohde & Schwarz is under license. “WiMAX Forum“ is a registered trademark of the WiMAX Forum. “WiMAX,“ the WiMAX Forum logo, “WiMAX Forum Certified,“ and the WiMAX Forum Certified logo are trademarks of the WiMAX Forum. All other trademarks are the properties of their respective owners. 2 Cover feature State-of-the-art technology is no lon- ger conceivable without powerful sen- sors. In ABS, in anti-collision radar and also in simple laundry dryers, these sensors measure the process param- eters of interest directly at the site of occurrence. In microwave applications, sensors help to ensure that the physical dimen- sion “power” can be measured directly at the source. This approach keeps any influences that might invalidate the results to a minimum. During the last ten years, Rohde&Schwarz has helped to ensure that yesterday’s simple trans- ducers have evolved into powerful min- iature measuring instruments such as the new R&S®NRP-Z57 thermal power sensor. The sensor has a continuous frequency range from DC to 67 GHz, and, in the application shown above, is used to per- form power measurements at the chip level using embedding. Overview NEWS 200/10 Articles not published in this issue are available as PDF files in German, English and French at: http://www.newsmag.rohde-schwarz.com. WIRELESS TECHNOLOGIES GENERAL PURPOSE Conformance test systems W R&S®ROMES2GO 3GPP walk test Power meters / voltmeters W Radio conformance test systems solution: significantly expanded in W R&S®NRP-Z56 / R&S®NRP-Z57 Ready for MIMO ........................ Page 6 version 2.0 Thermal power sensors R&S®ROMES2GO is an autonomous up to 50 GHz and 67 GHz. ....... Page 15 Coverage measurement systems walk test solution that automatically W R&S®TSMW universal radio records quality of service (QoS) data in Network analyzers network analyzer 3GPP mobile radio networks and saves W R&S®ZVAX24 extension unit the data on the data card of a mobile Connect once and fully characterize phone. The latest version 2.0 of the active components. R&S®ROMES2GO 3GPP walk test solu- ................................................. Page 18 tion is a consistent follow-on develop- ment toward a coverage measurement W R&S®ZVA and R&S®ZVT network system with significantly enhanced analyzers functionality. Group delay measurements on fre- ............. PDF fileN200_ROMES2GO_e quency converters for which the local oscillators of the mixers are World’s first 3GPP and Radiocommunications testers not accessible IMT-2000 scanner now also W R&S®CMW270 WiMAX™ Group delay measurements of fre- “understands” LTE .................... Page 9 communication tester quency converters without access to the local oscillator(s) of the mix- W LTE drive tests in one of ers? Rohde&Schwarz has developed Germany’s first research mobile the ideal solution for this type of mea- radio networks surement: the two-tone technique. The The Technical University of Dresden is R&S®ZVA-K9 option makes this tech- using an LTE research mobile radio net- nique available in the R&S®ZVA and work to investigate the range of individ- R&S®ZVT network analyzer families. ual sectors and the optimum tilt angles WiMAX™ data throughput ..................... PDF fileN200_ZVA-K9_e of antennas and to characterize individ- measurements ual channels by evaluating the channel ................................................. Page 12 Spectrum / signal analyzers impulse response. The R&S®TSMW uni- W Unique: convenient measure- versal radio network analyzer and a PC ment of noise figure and gain in the running the R&S®ROMES4 drive test 60 GHz range software were installed in a test vehicle The R&S®FSU67 is the only spectrum to obtain key data for this study. analyzer on the market for perform- ...................... PDF fileN200_TSMW_e ing measurements in the frequency range above 50 GHz. Together with the R&S®FS-K30 firmware option and the 60 GHz noise figure test set from Noisecom, it is the most powerful, yet easiest-to-operate system on the market 4 GENERAL PURPOSE BROADCASTING SECURE COMMUNICATIONS for measuring the noise figure and gain Test systems Professional mobile radio of components in the microwave range W R&S®SFU broadcast test system W ACCESSNET®-T Campus IP around 60 GHz. Ready for takeoff: test signals for ..................... PDF fileN200_FS-K30_e DVB-T2, the coming generation of digital TV ............................. Page 25 W R&S®FSV signal and spectrum analyzers Sound and TV transmitters Versatile modulation analysis W R&S®Nx8500 family of VHF from MSK to 64QAM .............. Page 20 high-power transmitters For an efficient future: new liquid-cooled, VHF high-power transmitters ............................. Page 28 EMC / FIELD STRENGTH TV analyzers W R&S®ETL TV analyzer EMI test receivers DTV: transmission perfect – A compact way to get started W R&S®ESCI7 EMI test receiver transport stream correct? ........ Page 30 with TETRA professional mobile radio ............................. Page 34 Signal generators W Automated measurements of picture and sound quality of state- of-the-art TV sets The R&S®DVSG digital video signal gen- RADIOMONITORING / RADIOLOCATION erator supports the development and quality assurance of latest- generation Reference TV sets and projectors. As a favorably W Beijing 2008 priced one-box solution, it generates Ready for the Olympics: Measuring disturbance up to 7 GHz in all audio and video signals required Rohde&Schwarz provides line with the latest standards ... Page 23 for deep color equipment with a color expertise and T&M solutions ... Page 36 depth of up to 12 bit. For assessing sound quality, it offers numerous audio generator functions. ........................ PDF fileN200_DVSG_e MISCELLANEOUS W Masthead .............................. Page 2 W Newsgrams ......................... Page 38 NEWS 200/10 5 WIRELESS TECHNOLOGIES | Conformance test systems Radio conformance test systems ready for MIMO Future mobile communications systems will have to provide high transmission rates for Internet and video applications. Advanced spatial multiplexing techniques such as MIMO offer the capabilities required. Now, the first RC test systems are available from Rohde&Schwarz for testing the corresponding base stations and terminal devices. Combating data jams with MIMO Ready for MIMO: R&S®TS8970 WiMAX™ RCT as an example Multiple input multiple output (MIMO) systems represent a solution for increasing data rates for advanced mobile Inter- The Worldwide Interoperability for Microwave Access net and video applications and for improving error protection. (WiMAX™) wireless standard offers effective transmission These systems use multiple antennas at both the transmitter rates of up to 30 Mbit/s (see article on page 12). In order to and receiver end (see box below). ensure this high-speed data transmission even under fading MIMO – a brief overview In contrast to single input single would no longer be possible in a SISO system. This is where output (SISO) systems, which use only one antenna each for the the advantages of MIMO systems come into play: Their receiv- transmitter and the receiver, MIMO systems use multiple anten- ing antennas allow them to receive multiple signals with different nas for both the transmitter and the receiver (FIG 1). This means delays so that the bit stream can even be decoded when one of that they enable the use of (radio) space (spatial division multi- the signals is suppressed. plexing) for coding the transmitted signal. During transmission, the different signals reach the receiving antennas in different When the R&S®AMU200A baseband signal generator and fading ways, and they are subjected to different attenuation and fading simulator is equipped with the R&S®AMU-K74 fading split mode factors along the path. Under ideal circumstances, all transmitted option [1] and two external I/Q inputs, it is possible to emulate signals arrive at all receiving antennas. In real transmission chan- a complete 2×2 MIMO channel by using two RF output stages. nels, however, each signal undergoes superposition at the receiver MIMO-typical merging of the transmitted signals at the receiving due to multipath propagation. In a worst-case scenario, this can antennas takes place in the R&S®AMU200A after the fading mod- completely suppress a signal. Under such conditions, reception ules (FIG 2). 2×2 MIMO scenario h11 h 12 Transmitting h 21 Receiving antenna 1 antenna 1 h22 Transmitting Receiving antenna 2 antenna 2 FIG 1 2×2 MIMO: two antennas at the transmitter and two antennas FIG 2 Representation of a 2×2 MIMO transmission on the display of at the receiver.