News from Rohde & Schwarz

Magazine for test & measurement and radio communication

News from Rohde & Schwarz Issue 1997/I - 153

• Type-approval tests of TETRA base and mobile stations to TBR35: TETRA Test Systems TS8940

  The future of professional mobile radio is digital and the European TETRA standard promises the best of transmission quality, ie as long as base and mobile stations pass TBR35 type-approval tests. These can be carried out during development and production with TETRA Test Systems TS8940 comprising a TETRA simulator and a TETRA protocol tester.
  Type-approval tests of TETRA base and mobile stations to TBR35: TETRA Test Systems TS8940
  
  

• The next generation in directional power meters: Power Reflection Meter NRT

  More than ten years ago Rohde & Schwarz set new standards with its Power Meter NRV, featuring intelligent sensors and affording ease of operation not known until then. Power Reflection Meter NRT takes things a step further: its sensors have become self-contained measuring instruments that communicate with the basic unit or another terminal via a standard serial interface.
  The next generation in directional power meters: Power Reflection Meter NRT
  
  

• Measurement and control made mobile: Portable Industrial Controller PSP

  Downsizing in three attributes is what makes Industrial Controller PSP different from its predecessors: down in price due to consistent design to cost, down in size making PSP Rohde & Schwarz’s first portable controller, and RF emission cut down to a minimum.
  Measurement and control made mobile: Portable Industrial Controller PSP
  
  

• The new members of HF Transceiver Family XK2000: HF Transceivers XK2500 and XK2900

  New transceivers for 500 W and 1 kW output have been added to Rohde & Schwarz’s XK2000 family of radio equipment for shortwave communications from 1.5 to 30 MHz. Their range of applications covers land-mobile and shipboard use as well as stationary operation by authorities, national forces, security services and the like.
  The new members of HF Transceiver Family XK2000: HF Transceivers XK2500 and XK2900
  
  

• Digital test signals for the television future: TV Test Transmitter SFQ

  TV Test Transmitter SFQ is a complete solution for testing digital TV receivers. It specializes in the generation of standard DVB signals for satellite and cable transmissions. SFQ also processes analog, frequency-modulated satellite TV and sound signals to PAL, SECAM and NTSC standards. Audio signals are transmitted with analog FM and digital ADR sound subcarriers.
  Digital test signals for the television future: TV Test Transmitter SFQ
  
  

• Digital modulation and mobile radio (IV):

  3.1 1/4 differential QPSK
  Digital modulation and mobile radio (IV):
  
  

• In-production testing of automotive electronics:

  The kind of electronic components used in automobiles are frequently subject to extreme conditions like large temperature fluctuations and strong vibrations, besides being exposed to electromagnetic interference, so they have to meet particularly stringent requirements to guarantee operational reliability and safety. This means that, in addition to painstaking development and testing of such circuitry, thorough quality assurance is also called for during production. It is not enough to simply check products for manufacturing defects.
  In-production testing of automotive electronics:
  
  

• Measuring noise parameters of twoports with Spectrum Analyzer FSM:

  Determining the noise parameters of twoports requires measurement of spectral noise-power density. Normally such measurements are carried out with highly sensitive receivers by the radiometer principle or with commercial, automatic noise-factor meters. Lately spectrum analyzers too come equipped for this application, although they are mainly intended for observing spectra with discrete frequencies rather than precise measurement of extremely low noise levels. Stability of receiver parameters with time is an important criterion for these measurements so that calibration should not be necessary more than once a day.
  Measuring noise parameters of twoports with Spectrum Analyzer FSM:
  
  

• Fit for future radiomonitoring and radiolocation up to 3 GHz:

  Continuous growth in wireless communication means that the capacity of classic VHF and UHF bands can no longer ensure interference-free radio traffic. So more and more operators all over the world are moving into higher frequency bands through to 3 GHz. Rohde & Schwarz is keeping pace with this trend by introducing frequencyextension options for Compact Receiver ESMC and Digital Monitoring Direction Finders DDF0xM.
  Fit for future radiomonitoring and radiolocation up to 3 GHz:
  
  

• Spectrum monitoring the ITU way:

  The third edition of the Handbook on Spectrum Monitoring of the International Telecommunication Union (ITU) was published in 1995. It is based on the latest findings on all aspects of radiomonitoring and ranks as the standard document for the spectrummanagement community. From the very beginning spectrum-monitoring systems from Rohde & Schwarz have been designed to meet the requirements of the ITU Radiocommunication Bureau (ITU-R). And for the first time Rohde & Schwarz participated in preparation of the manual.
  Spectrum monitoring the ITU way:
  
  

• When the PostMan rings on Internet:

  There is increasing demand, especially in the US, for integrating shortwave and VHF/UHF radio links into international communication networks. With its Message-Handling Software PostMan, Rohde & Schwarz is the first company to come up with a solution for the proven and cost-effective shortwave medium. PostMan provides access to global communication networks, the reserve of wired media until now, and thus opens up the whole world of international communication also on islands and in desert and polar regions.
  When the PostMan rings on Internet:
  
  

• RAMON basic software for Digital Direction Finders DDF0xM and DDF0xS:

  Radiomonitoring System RAMON® detects and monitors emissions in the frequency range 10 kHz to 18 GHz [1]. Using tried and tested standard components from Rohde & Schwarz, it is possible to compile even the most complex of radiomonitoring systems to customer requirements.
  RAMON basic software for Digital Direction Finders DDF0xM and DDF0xS:
  
  

• Analyzing radio signals with Digital IF Spectrum Display EP090:

  Digital IF Spectrum Display EP090 supports the monitoring of complex signals with commercial receivers in the VLF through SHF bands. EP090 comprises a long ISA module operated in a standard PC together with the software supplied.
  Analyzing radio signals with Digital IF Spectrum Display EP090:
  
  

• Communication signals with a few mouse clicks:

  Universal signal generators, which provide the required test signals simply and precisely, are needed for the development and production of base stations, handies and chip sets used by all communication systems. Software SME-K2 presented in this article simplifies the setting of Signal Generator SME [1– 3] to different signals and greatly enhances its usability.
  Communication signals with a few mouse clicks:
  
  

• Power sensors now through to 40 GHz:

  The range of sensors for Power Meters NRVS and NRVD, Level Meter URV35 and RF Millivoltmeter URV55 [1] has been extended by Diode Power Sensor NRV-Z15 and Thermocouple Power Sensor NRV-Z55 for measurements up to 40 GHz. This means that a suitable power sensor is available for practically every measurement task from DC up into the microwave range.
  Power sensors now through to 40 GHz:
  
  

• DAB multiplexer completes product line for digital audio broadcasting:

  In its DAB Multiplexer DM001 (FIG), Rohde & Schwarz rounds off its DAB product line and is thus the only supplier worldwide to offer a complete range of equipment from a single source to cover the entire DAB path from studio to transmitter.
  DAB multiplexer completes product line for digital audio broadcasting:
  
  

• Universal signal source for digital mobile radio: Economy Signal Generator SME03E

  The newly launched Economy Signal Generator SME03E (FIG) from Rohde & Schwarz offers everything you want from a signal source for digital mobile radio: it generates all kinds of standard signals used in today’s digital mobile networks and the whole range of analog signals as well. And all this for unrivalled price/performance.
  Universal signal source for digital mobile radio: Economy Signal Generator SME03E
  
  

• Measurement of clicking noise:

  Unlike continuous interference, clicking noise and similar sporadic, usually not reproducible types of interference generally escape measurement. Frequently, such types of interference have to be analyzed by the trained ear of a test engineer. But listening to sine tones over an extended period of time is not exactly pleasant. So how can the problem be solved?
  Measurement of clicking noise:
  
  

• SIT – Security in Information Technology:

  SIT, Gesellschaft für Systeme der Informationstechnik mbH, a subsidiary of Rohde & Schwarz based in Berlin, specializes in solutions to the problems of security in information technology (IT security). The main activities of the company are consulting and IT security analysis for industry and public authorities as well as the development of crypto products to protect data in modern information and communication systems.
  SIT – Security in Information Technology:
  
  

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/

• Issue 1996/IV - 152
• Issue 1996/III - 151

radiocommunications - test and measurement - broadcasting - it security

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