Using the internal R&S®ESMD-IGT GPS module and external GPS antenna in the R&S®ESMD wideband monitoring receiver

30-Apr-2013

Femtocells or Home base stations are an important development for cellular networks. This application note describes the tests commonly used during the production of Femtocells, focusing on WCDMA, HSPA, and HSPA+ technology. Tests, test plans and hardware setups for Femtocells with and without receiver diversity are detailed. Find hints about the instrument settings and have a look at typical measurement results. An introduction to simulating GPS / A-GPS signals for testing the GPS receiver of a Femtocell completes the paper.

02-Feb-2012 | AN-No. 1MA139

Testing global navigation satellite system (GNSS) receivers can be done easily, reliably and cost-efficiently by using the R&S®SMBV100A vector signal generator. This GNSS simulator can generate GPS, Glonass, Galileo, and BeiDou signals for up to 24 satellites in real time.This application note explains how to perform automated receiver tests using the R&S®SMBV100A. The presented tests include TTFF, sensitivity, and location accuracy measurements, moving receiver and interference tests, and many more. Basic remote control examples are provided for the individual tests to ease programming. This application note further includes a short guide for parsing NMEA data.

29-Jul-2014 | AN-No. 1GP86

The R&S®CMW500 and R&S®SMBV100B are the ideal team for motor vehicle type approval testing of your eCall and ERA-GLONASS cellular modems and their GNSS receivers in line with the EU2017/79 regulation.

02-May-2022

This application note describes how to convert GPS routes from NMEA 0183 file format to waypoint files that can be used by the R&S®SMU200A Vector Signal Generator.

26-Sep-2008 | AN-No. 1MA133

This application explains the setup and procedure to measure the exact time relationship between the CDMA RF signal and even-second clock. The accurate knowledge of this time relationship is e.g. necessary for test setups which require the synchronization of the R&S®CMU200’s CDMA2000 system with a GPS simulator.

09-Nov-2007 | AN-No. 1CM33

Automotive Infotainment Testing

19-Feb-2018

Automatic functional testing of roof antennas

05-Jul-2007

Rohde & Schwarz presents a customizable solution for testing GNSS receivers to ensure a certain resilience against (legal) interference from neighboring bands.

18-Jul-2017

LTE Location Based Services (LBS) involve the process of determining where a device is located. Global Navigation Satellite System (GNSS) based solutions are highly accurate and the technology of choice for absolute position accuracy, providing the device has a good line-of-sight, but this is not always the case. A device can be in a highly dense urban environment with reduced satellite visibility or indoors with very low signal levels.These limitations of GNSS systems have meant that LTE cellular based alternatives have been developed within 3GPP Release 9 and onwards.They are described in this white paper.

29-May-2015 | AN-No. 1SP05

Emergency Call (eCall) is a service provided in Europe with the goal of reducing response times for accidents or other emergencies on the roadways. This application note briefly describes the technology behind eCall and presents conformance tests for eCall using the R&S®CMW500 RF tester and the R&S®SMBV100A vector signal generator. A Test software for eCall makes it quick and easy to perform these tests with the GSM or WCDMA wireless communications standard. It also shows a test solution for GNSS performance tests for eCall using the R&S®SMBV100A vector signal generator and the option R&S®SMBV-K361 together with CMWrun.This application note is outdated. We therefore refer to the newer application note .

24-Jan-2018 | AN-No. 1MA241

Next Generation Emergency Call (NG eCall) is a extension of eCall, a service provided in Europe with the goal of reducing response times for accidents or other emergencies on the roadways. This application note briefly describes the technology behind NG eCall and presents conformance tests for NG eCall using the R&S®CMW500 RF tester and either the R&S®SMBV100B or the R&S®SMW200A vector signal generator. The test software for NG eCall (R&S®CMW-KA096) makes it quick and easy to perform these tests with the LTE wireless communications standard.

06-Jun-2019 | AN-No. GFM312

This application note describes how the transmitter landscape of a DVB-T2 single-frequency network (SFN) can be simulated in multiple input single output (MISO) mode in order to test the compatibility and performance of receiver modules. Neither an external T2-MI gateway nor a GPS receiver is required - just an R&S®BTC equipped with two RF paths. Alternatively, one R&S®SFU coupled with one or more R&S®SFU, R&S®SFE, R&S®SFE100 or R&S®SFC can also be used. R&S®ETL or R&S®ETC are suggested to fine-tune the synchronization between the generated RF signals.

03-Feb-2014 | AN-No. 7BM80

This application note explains how to synchronize the signals from multiple R&S®SMBV100A vector signal generators in time.The synchronization of the instruments is based on a master-slave principle where one R&S®SMBV100A acts as master and supplies all necessary synchronization signals to the other instruments (slaves). The setup is simple and provides highly synchronized test signals. Time synchronous signals are needed in several applications. The master-slave setup is ideal for basic MIMO tests, certain GNSS test scenarios and WLAN IEEE 802.11ac non-contiguous channel generation. Furthermore, synchronous baseband signals are the basis for generating phase coherent RF signals with the R&S®SMBV100A.

09-Jul-2013 | AN-No. 1GP84

The R&S®SMBV100A is both, a versatile general-purpose vector signal generator and a powerful GNSS signal simulator. It can simulate up to 24 satellites in realtime for testing GNSS receivers flexibly, reliably, and cost-efficiently. The R&S®SMBV100A supports receiver testing under realistic conditions by offering features such as obscuration simulation and automatic multipath generation. Out of a multitude of possible test scenarios – with predefined or user-specific settings – this application note presents some examples to give an impression of the instrument’s capabilities.

19-Apr-2018 | AN-No. 1GP101

The vector signal generators and GNSS simulators R&S®SMW200A and R&S®SMBV100B are remote-controllable in realtime and can therefore be implemented into a dynamic HIL environment. The HIL simulator can dictate position coordinates, kinetic parameters, and vehicle attitude information based upon which the R&S® GNSS simulator updates the simulated receiver movement in realtime. This application note presents background information and details about operating a R&S® GNSS simulator in HIL applications.

14-Apr-2020 | AN-No. 1GP102

What used to be the car radio has evolved from adding a cassette player to state of the art entertainment on the move. All this while keeping driver & passengers connected. The design challenge is to bring all the communication and broadcast standards into a small form factor that fits in the dashboard of the car. The RF modules need to support multiple standards in a single assembly and multiple modules are placed next to each other. The frequencies defined by the RF standards are in very close proximity and hence need to co-exist with each other. Moreover, the antennas inside the car are subjected to cross-coupling effects with mobile devices of passengers. To ensure the RF performance of the infotainment system, all of these scenarios need to be thoroughly tested.This application note highlights some of the RF measurement challenges and introduces Rohde & Schwarz equipment required for relevant RF characterization of car infotainment devices.

08-May-2017 | AN-No. 1MA275