News from Rohde & Schwarz
Magazine for test & measurement and radio communication
News from Rohde & Schwarz Issue 2005/I - 185
MMS tests on multimedia mobile phones: Protocol Tester R&S ® CRTU-G / -W
With the R&S ® CRTU-ATE application test environment software platform for the Protocol Testers R&S ® CRTU-G/-W, Rohde & Schwarz has expanded its portfolio by an MMS test solution for developing, verifying and certifying multimedia mobile phones.
MMS tests on multimedia mobile phones: Protocol Tester R&S ® CRTU-G / -W
Test cases for dual transfer mode in GSM and (E)GPRS networks: Universal Protocol Tester R&S ® CRTU-G
Competition energizes the business. The standard features of the new UMTS networks are leading to substantial improvements in GSM and (E)GPRS networks. Dual transfer mode (DTM) is the keyword here. This new method will also make it possible in GSM networks to perform functions such as receiving a call or sending an SMS while receiving e-mails (figure). The implementation of DTM in the R&S ® CRTU-G will offer protocol stack developers a more powerful tool.
Test cases for dual transfer mode in GSM and (E)GPRS networks: Universal Protocol Tester R&S ® CRTU-G
Reliable communications system for Bangkok’s underground train system: TETRA Mobile Radio System ACCESSNET ®-T
Bangkok Metro Corporation Limited contracted Siemens TS (Transportation Systems) to equip the first underground train system in the Thai capital. The order covered the delivery of the complete infrastructure including signal technology, set of coaches, power supply, depot equipment and radio communications system. Siemens TS selected the ACCESSNET ®-T TETRA radio system from R&S BICK Mobilfunk as the radio communications system.
Reliable communications system for Bangkok’s underground train system: TETRA Mobile Radio System ACCESSNET ®-T
Interface for the I2S serial data bus: Audio Analyzer R&S ® UPV
The compact Audio Analyzer R&S ® UPV smoothly handles any audio measurement. With features that are as advanced as technically possible, it is predestined for high-resolution digital media and meets the stringent requirements of analog technology [*]. By means of two rear extension slots, it can be adjusted to rapidly changing technical developments. Brand-new is the interface extension for the I2S bus, which is gaining ground worldwide. This option allows direct audio measurements on a wide variety of components and modules with maximum precision.
Interface for the I2S serial data bus: Audio Analyzer R&S ® UPV
Polar modulation: Vector Signal Generator R&S ® SMU200A
The two-path concept of the R&S ® SMU200A makes this instrument considerably more versatile than conventional vector signal generators. While conventional generators with I/Q modulation cannot generate polar-modulated signals, for example, the R&S®SMU200A can do so when equipped with two baseband generators.
Polar modulation: Vector Signal Generator R&S ® SMU200A
Measuring spurious emissions: Signal Analyzer R&S ® FSQ / Spectrum Analyzer R&S ® FSU
By virtue of their sensitivity and excellent modulation capabilities, the R&S ® FSU and R&S ® FSQ analyzer families are ideally suited for measuring spurious emissions. The new Spurious Emissions application for these instruments provides flexible device configu-ration and high measurement speed as well as straightforward evaluation of results. With up to 100 001 points per measurement, the analyzers do not miss a single spurious signal, even with large frequency ranges.
Measuring spurious emissions: Signal Analyzer R&S ® FSQ / Spectrum Analyzer R&S ® FSU
Single, compact instrument for calibrating signal generators: Measuring Receiver R&S ® FSMR
The new Measuring Receiver R&S ® FSMR is the first instrument to combine a wide variety of functions for signal generator calibration in a single, compact instrument. Featuring excellent characteristics in measurement accuracy and measurement speed, it is ideal for use in calibration labs as well as for mobile applications.
Single, compact instrument for calibrating signal generators: Measuring Receiver R&S ® FSMR
Gated measurements made easy: Power Meter R&S ® NRP
Due to signal-synchronized gates and graphical display of the power envelope, power measurements on pulsed RF signals have become simpler than ever with the Power Meter R&S ® NRP. This article describes the operation of the Gates function in the Scope mode using a TDMA signal as an example and shows that this mode is indispens-able for power measurements when developing modern communications standards.
Gated measurements made easy: Power Meter R&S ® NRP
EVM measurements on ZigBee signals: Signal Analyzer R&S ® FSQ
The ZigBee™ standard (IEEE 802.15.4) defines a system for data transmission at low data rates and duty cycles with long pauses. ZigBee products can be used for versatile applications such as building automation, industrial facilities, or for light and thermostat control at home. This article explains how to perform EVM measurements on ZigBee signals by using the Signal Analyzer R&S ® FSQ. For details on the new standard, see page 27.
EVM measurements on ZigBee signals: Signal Analyzer R&S ® FSQ
The ZigBee standard at a glance:
Designed for minimum power consumption and low costs
Low data rates have been deliberately defined in the ZigBee standard, since they contribute to favorably priced products which, in turn, allow sensors or machines to be inexpensively networked. Especially attractive, compared with Bluetooth ®, is the lower power consumption, ensuring a battery operating time of several years...
The ZigBee standard at a glance:
A new era in systems solutions: Integrated Measurement System R&S ® IMS
The R&S ® IMS is a compact and costefficient EMS measurement system that can be converted to a complete EMC test system merely by adding a few components. You can then perform measurements in compliance with all common commercial, military and automotive standards.
A new era in systems solutions: Integrated Measurement System R&S ® IMS
Click rate analysis in accordance with CISPR 14: EMI Test Receiver R&S ® ESCI
Thermostat- or program-controlled devices such as washing machines or air conditioners generate discon-tinuous interference, also referred to as click interference. Since this inter-ference is aperiodic, reduced limit values - compared with those appli-cable to continuous interference - apply. To determine the extent of the specified limit values, manufacturers have to measure the time period of the clicks, their repetition rate (click rate) and their levels. CISPR14 and EN55014 [1] specify limit values for RFI voltage with a click rate weighting in the frequency range from 0.15 MHz to 30 MHz. Using the R&S ® ESCI and the free-of-charge Click Rate Analyzer software, this is child’s play.
Click rate analysis in accordance with CISPR 14: EMI Test Receiver R&S ® ESCI
All-purpose instrument with integrated DVB-T receiver module: Transmitter Control Unit R&S NetCCU ® 700
The R&S NetCCU ® 700 can be used for many purposes – as a transmitter control unit, a local control unit or a network interface for web and SNMP applications in which the R&S NetCCU ® 700 provides the hard-ware platform. By adding the unit‘s optional DVB-T receiver module, you can broaden its range of applications even further.
All-purpose instrument with integrated DVB-T receiver module: Transmitter Control Unit R&S NetCCU ® 700
Transmitter systems for special applications: TV Transmitters in Containers
Rohde & Schwarz is the world market leader in digital broadcast transmitters as well as a leading manufacturer of analog transmitters in Europe. This preeminent market position is no doubt the result of the company’s innovative products plus its excellent reputation for delivery reliability and for getting equipment up and running even when project deadlines are very tight. Rohde & Schwarz’s extensive portfolio also features exceptional products such as transmitters in containers or lightweight transmitter buildings.
Transmitter systems for special applications: TV Transmitters in Containers
Air-cooled transmitters for the medium-power segment: UHF TV Transmitters R&S ® NH/NV8200
In addition to the global market for liquid-cooled high-power TV transmitters that Rohde & Schwarz successfully covers with the R&S ® NH/NV7000 transmitter generation, there is also significant demand for air-cooled transmitters in the medium-power segment. The new R&S ® NH/NV8200 transmitter family has been designed for this market, offering TV signals with power up to 2.0 kW with analog combined and up to 1.2 kW with DVB-T/-H or ATSC.
Air-cooled transmitters for the medium-power segment: UHF TV Transmitters R&S ® NH/NV8200
Quality assurance in DVB-T networks: TV Test Receivers
DVB-T networks are being set up, tested or used in regular operation all over the world. Irrespective of the particular stage of a transmitter network, you should always have detailed knowledge of its properties. For this purpose, TV test receivers are the prime choice.
Quality assurance in DVB-T networks: TV Test Receivers
Nationwide radiomonitoring system for Greece: Spectrum Monitoring and Management System R&S ® ARGUS-IT
The Olympic Summer Games 2004 in Athens were a great success not just from an athletics point of view; enormous communications challenges were also successfully mastered with the contribution of the new nationwide radiomonitoring system from Rohde & Schwarz.
Nationwide radiomonitoring system for Greece: Spectrum Monitoring and Management System R&S ® ARGUS-IT
Newsgrams:
Newsgrams:
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