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  • Fast Scalar Network Analysis Using a Signal Generator and a Power Meter

    This document presents a simple procedure for network analysis that is more cost-effective than the use of scalar network analyzers. It allows the accurate measurement of the transmission characteristics of filters, amplifiers and frequency converters over a large frequency and dynamic range. In order to reach very high measurement speeds, Rohde & Schwarz signal generators are operated in 'List Mode', and Rohde & Schwarz power meters are operated in 'Buffered Mode.' The required programming for the signal gene­rator and the power meter is illustrated by excerpts from a Visual Basic program which is available, free of charge, upon request.

  • HSUPA RF Measurements with the R&S®CMW500 in line with 3GPP TS 34.121

    Most of the tests specified in the 3GPP standard TS 34.121 [1] Release 6 (Rel-6) can be performed with the R&S®CMW500. This document provides a step-by-step guide on how to use a stand-alone R&S®CMW500 to take Rel-6 measurements on transmitter characteristics and execute performance tests according to TS 34.121 V9.7.0, clauses 5 and 10. Test cases that require fading simulation can also be carried out with the aid of a standalone R&S®CMW500 that has been configured with a built-in fading simulator option. That greatly reduces test setup complexity. Furthermore, the R&S®CMW500's wizard enables easy configuration of the test setup for various HSUPA subtests as specified by TS34.121 [1]. The procedure detailing how the wizard is used is also explained for each test case. The test cases mentioned in this application note are carried out using Rel-6 user equipment (UE) that supports Operating Band I and Power Class 3.

  • Acoustic Test Software for Mobile Phones in Service and Repair

    This application note provides software and instructions for a simple check of the acoustic performance of mobile phones. It targets mainly service centers and repair workshops which have to perform incoming tests of defective mobile phones and final tests of repaired mobiles. A focus is set on short test times and ease of use, without compromising accuracy and repeatability of results.

  • Testing Speech Quality of Mobile Phones in a Live Network

    This application note provides an application program and instructions for performing speech quality tests and delay measurements in a live network, using the R&S®UPV audio analyzer.

  • Simplify your envelope tracking system

    The R&S®SMW200A vector signal generator combined with the R&S®FSW signal and spectrum analyzer offers fast and simple power amplifier testing including envelope tracking and digital predistortion, effectively replacing complex test setups.

  • R&S®SMW200A - Test Case Wizard for Base Station Conformance Tests

    Application Video

  • W-CDMA Base Station Transmitter Tests According to TS25.141 Rel. 10

    3GPP TS25.141 defines conformance tests for W-CDMA base stations (including HSPA+ features). This application note describes how transmitter (Tx) tests (TS25.141 Chapter 6) can be performed quickly and easily by using signal and spectrum analyzers from Rohde & Schwarz. A few tests additionally require vector signal generators from Rohde & Schwarz. Example illustrates manual operation. A free software program enables and demonstrates remote operation. The W-CDMA base station receiver (Rx) tests (TS25.141 Chapter 7) are described in Application Note 1MA114.

  • 3GPP Receiver Test Under Fading Conditions With CMU and SMIQ.

    This application note describes how to generate 3GPP (UTRA-FDD) signals for receiver tests under fading conditions for user equipment. The test setup requires an R&S®CMU200 Universal Radio Communication Tester with option R&S®CMU-B17 IQ-IF interface and an R&S®SMIQ Vector Signal Generator. The test setup can be calibrated with either a R&S®NRP-Zx USB power sensor or an NRP, NRVD, or NRVS Power Meter. To calibrate the baseband and RF path and configure performance tests according to the 3GPP test specification 34.121 easily, the program 3GFadLevCor is included.

  • Introduction to MIMO

    Modern radio communication systems have to provide higher and higher data rates. As conventional methods like using more bandwidth or higher order modulation types are limited, new methods of using the transmission channel have to be used. Multiple antenna systems (Multiple Input, Multiple Output – MIMO) gives a significant enhancement to data rate and channel capacity. This application note gives an introduction to basic MIMO concepts and terminology and explains how MIMO is implemented in different radio communications standards.

  • Testing Power Amplifiers for 3G Base Stations

    This application note describes essential test setups and test procedures for 3GPP power amplifiers especially for production lines.

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