70 Results
Software tool for fast and repeatable optimization of signal analyzer RF front-end settings
The signal conditioning in the RF front-end of signal analyzers is crucial to achieve the best performance with respect to image-suppression, noise-floor, dynamic range and other RF-key parameters.Precise signal levelling is especially important for complex measurements like Error-Vector-Magnitude (EVM). To minimize the measurement uncertainty from test system contributions over a wide range of different levels, the RF front-end needs to be adapted continuously according to the signal characteristics, signal power and frequency - ideally using an automatic levelling algorithm.This document describes the approach of a waveform specific, on-site characterization of the signal analyzer: For each waveform and frequency of interest, the instrument is evaluated in a first step. With this additional data, a fast and repeatable auto-levelling can be performed during the actual measurement.
24-Jan-2022 | AN-No. 1EF111
The document gives an overview and user guide about a link budget calculator for the main components of a basic OTA system. Accomopanied by an Excel sheet containing the Link Budget Calculator.
19-Mar-2019 | AN-No. 1EF104
This application note describes how to generate and analyze wideband digitally modulated signals in the mm-wave range. Rohde & Schwarz measuring equipment and some 3rd party off-the-shelf accessories are used for both signal generation and analysis.
02-Sep-2014 | AN-No. 1MA217
Test Solutions Based on R&S®CMX500 Platform
The evolution of mobile communication enters 5G New Radio (NR) era with pivotal features. Voice call service is however still considered as an indispensable element for mobile devices and worldwide network operators continue to maintain the voice service for their subscribers. In comparison to other Over-the-Top (OTT) voice services, such as WhatsApp©, Teams© etc., Voice over NR (VoNR) and Voice over LTE (VoLTE) maintain QoS, support well established handover mechanism and emergency call, and do not require to pre-install OTT app on the phone.In order to provide premium voice service and enhance the superb user experience, audio tests on mobile devices are essential before the product launch. Different audio test aspects among which acoustic, functional, performance and field tests need to be considered.This application note describes the performance test with focus on VoNR audio quality measurement via electrical interface of the mobile device. The test solution is based on R&S®CMX500 with its integrated POLQA algorithm.
26-Jul-2023 | AN-No. 1SL401
Connecting simulation and measurements on physical devices
This application note is based on collaborative work between MathWorks® and Rohde & Schwarz. The focus is on linearization of a non-linear device, in our case the RF power amplifier.
05-Aug-2021 | AN-No. 1SL371
This application note expands modulation bandwidth up to 2 GHz and covers both V- and E-band examples.
18-Jun-2015 | AN-No. 1MA257
This application note aims to explain test procedures and characterization of the relevant parameters for active phased array antennas.
04-Jul-2016 | AN-No. 1MA248
Learn more about efficient testing of electronic control units in automotive applications to ensure a convenient and safe driving experience.
06-Jul-2020
Machine learning use cases like network utilization rating and call stability score extract insights from network data analytics enabling network optimization
28-Feb-2024 | AN-No. 8NT10
This application note highlights RF measurement challenges and introduces Rohde & Schwarz equipment required for RF characterization.
08-May-2017 | AN-No. 1MA275