Product Brochure (german) for R&S®ESR
Contents
1. Firmware updates always in step with new developments R amp S ESR firmware updates can be downloaded from a USB stick or via GPIB or LAN They are available free of charge at www rohde schwarz com DC power supply for field use optionally with external battery pack The optional R amp S FSV B30 DC power supply makes it pos sible to operate the R amp S ESR from 12 V to 15 V DC sourc es Using the optional rechargeable R amp S FSV B32 battery pack the R amp S ESR can record measurements for up to two hours on a single charge Solid state drive SSD for high vibration and shock loading The R amp S ESR is equipped as standard with a removable hard disk drive The hard disk drive can be replaced with a solid state drive R amp S ESR B18 option to handle scenarios with above average fluctuations of the operating tempera ture permissible range 5 C to 40 C or when the in strument is exposed to strong shock and vibration loads for example in vehicles Compact design Its compact and robust design and low weight of approx 13 kg without hardware options make the R amp S ESR an ideal choice also for mobile applications Rohde amp Schwarz R amp S ESR EMI Test Receiver 13 Specifications in brief Base unit Frequency Frequency range R amp S ESR3 R amp S ESR3 with R amp S ESR B29 option R amp S ESR7 R amp S ESR7 with R amp S ESR B29 option Level Max RF level CVW RF attenuation 2 10 dB RF preampl2. we es R amp S ESR EMI Test Receiver Benefits and key features Standard compliant disturbance measurements 1 Certification measurements 1 Standard compliant EMI measurements in spectrum analyzer mode gt page 4 FFT based time domain scan for ultra fast measurements 1 Fastest EMI test receiver in the marketplace due to hardware based FFT calculation 1 Seamless detection of disturbance signals 1 Realtime measurement of conducted disturbances with quasi peak and average weighting gt page 5 Realtime spectrum analysis for detailed investigation of disturbances 1 Spectrogram for seamless spectrum display in the time domain 1 Persistence mode spectral histogram for clear identification of pulsed and continuous disturbances 1 Frequency mask trigger for precise and reliable detection of sporadic spectral events gt page 6 Powerful measurement and analysis functions in frequency and time domain 1 Automatic test sequences with preview measurement data reduction and final measurement 1 IF analysis function for displaying the spectrum around disturbance signals 1 Time domain display integrated oscilloscope function 1 Simultaneous display of up to six traces and four bargraphs 1 Preset antenna factors transducers and user created transducer sets EMI limit line library for commercial standards with convenient editor Remotely controlled measurements and automated EMI test routines using
3. 3606 2012 12 58 53 which can be positioned as required trum up to 250000 per second and compares it with a frequency dependent mask If a spectrum violates the Sporadic events are often difficult to detect and measure mask the R amp S ESR activates a trigger and either displays The test receiver s frequency mask trigger FMT which that spectrum and then freezes the display or in continu operates in the frequency domain provides a solution to ous mode it updates the display whenever a spectrum this problem The R amp S ESR measures every single spec violates the mask Spectrum Rex T Real Time Spectrum Ref Level 87 00 dBjV RBW EMI 120 kHz Att 20 dB SWT F 200 ms SPAN 25 MHz Input 1 DC PA Span 24 9975 MHz Measuring Real Time Spectrum Ref Level 87 00 dBpV RBW EMI 120 kHz Att 20 dB 2 SWT F 100 ms SPAN 25 MHz Input i DC PA A ae EEUU 0 2 0 5 Rohde amp Schwarz R amp S ESR EMI Test Receiver 7 Powerful measurement and analysis functions in frequency and time domain Test Automation OFF Scan Table Peak Search Run Final Test Automation Measuring Automatic test sequences with preview measurement data reduction and final measurement A fast preview measurement with peak and average weighting combined with a final measurement on the criti cal frequencies with the required CISPR weighting this is the standard approach when performing disturbance measurements The R
4. Att 10dB Preamp 0 dB Step TD Scan Scan 1QP Clrwe 2C Clrw ENV216 ENV216 L1 HP Start 150 0 kHz Measuring Speed is a crucial factor when testing devices that can be operated or measured only during a short period of time either because they change their behavior fluctuating or drifting disturbances or because extended operation might be destructive or because their operating cycle calls for high speed as in the case of electric window regula tors in motor vehicles The test receiver s extremely fast time domain scan makes it easy to handle such scenarios Users can also increase the measurement time in order to reliably detect narrowband intermittent interferers or iso lated pulses The R amp S ESR allows seamless measurement of a disturbance signal for a period of up to 100 s for each frequency segment Realtime measurement of conducted disturbances with quasi peak and average weighting The time domain scan function is particularly useful when carrying out weighted measurements of conducted distur bances for example when measuring disturbance voltage in the frequency range from 150 kHz to 30 MHz in line with CISPR EN product emission standards The R amp S ESR measures this range in realtime and immediately performs the required quasi peak and average weighting A preview scan is no longer needed The R amp S ESR performs disturbance voltage measurements with quasi peak and average 30 0 MHz 25 0
5. amp S ESR supports this approach It offers a choice of common limit lines defined in commercial product emis sion standards The results of the preview measurement obtained with a fast time domain scan or a stepped fre quency scan are compared with the limit lines Next the test receiver identifies critical frequencies according to user defined criteria and presents them in a table peak list In a last step a final measurement is performed with CISPR conformant measurement time and detector s Pri or to the final measurement users can manually edit the peak list by adding or deleting frequencies in an interactive way The R amp S ESR can remotely control Rohde amp Schwarz line impedance stabilization networks via its AUX port Distur bance voltage measurements on power lines can be per formed fully automatically on all phases This ensures reli able detection of the highest disturbance level l a Receiver Frequency v j Bargraph n Detector OF Meas Time V Demod IL M Add to Peak List Bargraph Scan Bargraph IF Analysis pa The R amp S ESR allows users to configure auto p IF Analysis Scan data reduction final measurement quickly and Test matic test sequences preview measurement easily and execute them at the press of a but ton The final measurement can also be carried 21 06 2012 13 50 42 out interactively IF analysis function for displaying the spect
6. 6 2012 11 56 20 weighting in just a few seconds Rohde amp Schwarz R amp S ESR EMI Test Receiver 5 Realtime spectrum analysis for detailed investigation of disturbances Measuring disturbances caused by sporadic and brief events in the frequency domain or determining the spec tral behavior of devices under test during switching opera tions for example are difficult and time consuming tasks The realtime spectrum analysis function of the R amp S ESR now provides new insight into this type of disturbance The R amp S ESR seamlessly measures a spectrum of up to 40 MHz for any length of time and therefore reliably cap tures even sporadic signals Realtime spectrum analysis speeds up final product certification as it shortens test times Real Time Spectrum Ref Level 100 00 c Att 10 dB TDF A RBW SWT F SPAN 30 MHz 1Pk Clrw UB TUR uides TITAN Lol lA bade CF 15 075 MHz B 1Pk Clrw gt CF 15 075 MHz Span 29 85 MHz Input 1 DC uses a il Span 29 85 MHz Jun 26 12 44 01 59353 E Spectrogram for seamless spectrum display in the time domain The R amp S ESR offers a spectrogram function that allows users to analyze the behavior of disturbance signals in the time domain Each spectrum is presented as a horizontal line with different levels assigned different colors and the individual spectral lines are joined continuously Record ing is seamless at a rate of up to 10000 lines pe
7. GHz a 20 dB preamplifier and a highly linear frontend the R amp S ESR meets the requirements of commercial stan dards such as CISPR EN ETS ANSI FCC and VCCI The R amp S ESR has a standard frequency range from 9 kHz to 3 6 GHz or 7 GHz which can optionally be extended down to 10 Hz Featuring low displayed average noise level typ 168 dBm at 1 Hz bandwidth with preamplifier switched on the R amp S ESR also measures very weak signals pre cisely and with a good signal to noise ratio The R amp S ESR weighting detectors including CISPR average average detector with meter time constant and RMS Average meet the requirements of the CISPR 16 1 1 standard as do the EMI resolution bandwidths 200 Hz 9 kHz 120 kHz as 6 dB bandwidths 1 MHz as impulse bandwidth 6 dB resolution bandwidths in decade steps from 10 Hz to 1 MHz are optionally available for example to enable mea surements in line with MIL STD 461 DO 160 and ICNIRP guidelines on exposure limits Standard compliant EMI measurements in spectrum analyzer mode Like all Rohde amp Schwarz EMI test receivers the R amp S ESR is based on a powerful signal spectrum analyzer platform R amp S FSV With preselection activated the R amp S ESR can perform standard compliant EMI measurements in addi tion to EMI analysis during development Up to 16 configurable markers can be placed on the fre quencies of EMI signals to carry out targeted analysis Markers can
8. More speed More insight More intelligence ROHDE amp ScHWanz l o P ooo 8 o FCEE te 2 6375000 MHz ee CELB 2 EEG Ne k z DED WP A ETT Test amp Measurement R amp S ESR EMI Test Receiver At a glance The R amp S ESR measures conducted and radiated disturbances in the frequency range from 10 Hz to 7 GHz in compliance with the CISPR 16 1 1 standard Using an FFT based time domain scan the instrument measures electromagnetic disturbances at an extremely high speed At the same time the R amp S ESR functions as a full featured powerful signal and spectrum analyzer for lab applications Featuring realtime spectrum analysis capability with a wide range of diagnostic tools the test receiver also enables detailed analysis of disturbance signals and their history The R amp S ESR comes with a clearly structured intuitive touchscreen interface and is very easy to use EJ Q ROHDE amp SCHWARZ ESR EMI TEST RECEIVER 9 kHz 7 GHz 2 Lev dByV Frequency 12 6375000 MHz D c DED The R amp S ESR measures up to 6000 times faster than con ventional EMI test receivers Disturbance measurements which took hours in the past can now be completed in just seconds This also applies to measurements across wide frequency ranges or with small step sizes as well as to disturbance voltage measurements using quasi peak and average weighting This saves considerabl
9. R amp S EMC32 and R amp S ES SCAN application software Extensive analysis capabilities for general laboratory applications 1 Tracking generator for scalar network analysis gt page 8 Convenient operation straightforward display 1 Touchscreen based user interface with undo redo functions 1 Straightforward scan table ntegrated online help Storage of results and instrument settings to internal or external media Removable hard disk drive HDD to keep test data confidential Remote control via GPIB or LAN Drivers for LabView LabWindows CVI VXI Plug amp Play Firmware updates always in step with new developments gt page 12 Robust and compact ideal also for mobile use 1 DC power supply for field use optionally with external battery pack 1 Solid state drive SSD for high vibration and shock loading 1 Compact design gt page 13 Rohde amp Schwarz R amp S ESR EMI Test Receiver 3 otandard compliant disturbance measurements Certification measurements The R amp S ESR has been designed with the main focus on certification measurements in line with EMC standards Standard compliant certification measurements place very high demands on the test equipment since it must cor rectly detect measure and weight all of the disturbance signals that occur These include pulsed and sinusoidal as well as modulated and intermittent signals With its integrated preselection with 16 fixed filters up to 7
10. R comes with a set of typical transducers for test antennas employed in radiated disturbance measure ments Users can also create and save correction tables of their own for antennas cables line impedance stabili zation networks external preamplifiers etc Multiple cor rection factors for different antennas covering different frequency ranges different cables external preamplifiers etc can be combined in transducer sets The R amp S ESR automatically takes into account all activated transducers and correction factors and selects the appropriate mea surement unit EMI limit line library for commercial standards with convenient editor The R amp S ESR also includes a selection of important limit lines in line with commercial product emission standards Users can edit add and save limit lines in the correspond ing tables Upper part of screen continuous spectral dis play of RF input signal around the current EMI receive frequency using the IF analysis function Lower part of screen stored results of preview measurement The center frequency in the up per diagram is controlled by the marker position in the lower diagram marker track function Alternatively the IF spectrum display can be coupled with the combined numeric and bar 13 27 07 graph display Remotely controlled measurements and automated EMI test routines using R amp S EMC32 and R amp S ES SCAN application software The R amp S EMC32 EMC measurement s
11. ayed average noise level DANL receiver mode nominal average detector AV RF attenuation 0 dB termination 50 Q preamplifier off 500 MHz bandwidth 120 kHz 3 GHz bandwidth 1 MHz preamplifier on 500 MHz bandwidth 120 kHz 3 GHz bandwidth 1 MHz Number of sweep trace points analyzer mode standard analyzer mode EMI receiver mode realtime analyzer option lt 6 dBuV lt 17 dBuV lt 7 dBuV lt 5 dBuV 101 to 32001 101 to 200001 max 4000000 801 Total measurement uncertainty CW signal level 0 dB to 70 dB below reference level S N gt 20 dB auto sweep time RF attenuation 10 dB 20 dB 30 dB 40 dB preselection on span RBW 100 95 confidence level 20 C to 30 C 9 kHz x f lt 3 6 GHz 3 6 GHz xf 7 GHz For data sheet see PD 3606 7201 22 and www rohde schwarz com 14 0 46 dB 0 57 dB Ordering information EMI Test Receiver R amp S ESR3 1316 3003 03 EMI Test Receiver R amp S ESR7 1316 3003 07 Accessories supplied Power cable probe power cable quick start guide and CD ROM with operating and service manual Software options Time Domain Scan requires R amp S ESR B50 R amp S ESR K53 1316 3590 02 Realtime Analysis requires R amp S ESR B50 R amp S ESR K55 316 3603 02 IF Analysis R amp S ESR K56 1316 3610 02 Hardware options OCXO Precision Reference Frequency R amp S FSV B4 1310 9522 02 OCXO Enhanced Frequency Stability R amp S FSV B4 310 9522 03 Tracking Generato
12. be coupled with a CISPR weighting detector to enable direct comparison with limit values The spec trum can also be displayed along a logarithmic frequency axis which simplifies result analysis across a wide fre quency range and displays limit lines in compliance with relevant standards Critical frequencies are presented in a peak list enabling fast standard compliant comparison of EMI signals with limit lines R amp S ESR models 10Hz 9kHz 3 6 GHz 7 GHz FFI based time domain scan for ultra fast measurements Fastest EMI test receiver in the marketplace due to hardware based FFT calculation The R amp S ESR B50 and R amp S ESR K53 options enhance the R amp S ESR by adding an FFT based time domain scan This scan mode delivers measurement speed up to 6000 times higher than can be achieved in conventional stepped fre quency scan mode making the R amp S ESR the fastest EMI test receiver in the marketplace Seamless detection of disturbance signals The R amp S ESR performs frequency scans in the CISPR bands in just a few milliseconds and measures conducted disturbances in realtime Spectral signal components with a bandwidth of up to 30 MHz are covered without any time gaps With a virtual step size of 4 of the resolution bandwidth and Gaussian FFT windows overlapping by more than 90 the test receiver achieves level measure ment accuracy in line with CISPR 16 1 1 Receiver RBW QPK 9 kHz MT 1s Input 1 DC
13. e time and cost during product development and certification Besides offering functionality for EMC conformance test ing the R amp S ESR features realtime spectrum analysis ca pability providing new diagnostic tools such as a spectro gram persistence mode and frequency mask trigger With these tools users can detect hidden or sporadic emissions and analyze their causes The clearly structured menus combine with the intuitive touchscreen to make the test receiver very easy to operate in any mode Users can display up to six different traces on the large 21 cm 8 4 touchscreen for fast effective result analysis Featuring compact dimensions low weight and optional DC power supply the R amp S ESR is an ideal choice also for mobile use Key facts 1 EMI test receiver and signal spectrum analyzer combined in a single instrument 1 Compliant with CISPR 16 1 1 Ed 3 1 1 Preselection with integrated 20 dB preamplifier 1 Resolution bandwidths in line with CISPR and in decade steps from 10 Hz to 1 MHz MILSTD 461 DO 160 1 Ultra fast time domain scan in addition to conventional stepped frequency scan 1 Realtime spectrum analysis with up to 40 MHz span for detailed investigation of disturbance signals 1 Time domain display with high resolution 50 us 1 Automatic test routines HEHA CJ AAI AS HEHA O8 a nope ODDS gape o9 c e Ye um TO Q GNCCITUII OMEN ee A e a ET j ET
14. icated service network in over 70 countries Company headquar ters are in Munich Germany Environmental commitment 1 Energy efficient products 1 Continuous improvement in environmental sustainability 1 ISO 14001 certified environmental management system Certified Quality System ISO 9001 Rohde amp Schwarz GmbH amp Co KG www rohde schwarz com Regional contact 1 Europe Africa Middle East 49 89 4129 12345 customersupport rohde schwarz com 1 North America 1 888 TEST RSA 1 888 837 87 72 customer support rsa rohde schwarz com 1 Latin America 1 410 910 79 88 customersupport la rohde schwarz com 1 Asia Pacific 65 65 13 04 88 customersupport asia rohde schwarz com 1 China 86 800 810 8228 86 400 650 5896 customersupport china rohde schwarz com R amp S is a registered trademark of Rohde amp Schwarz GmbH amp Co KG Trade names are trademarks of the owners Printed in Germany as PD 3606 7201 12 Version 01 01 August 2012 R amp S ESR Data without tolerance limits is not binding Subject to change 2012 Rohde amp Schwarz GmbH amp Co KG 81671 M nchen Germany 3606720111
15. ifier off RF attenuation 2 10 dB RF preamplifier on Max pulse voltage RF attenuation 2 10 dB input 1 input 2 Max pulse energy RF attenuation 2 10 dB 10 us input 1 input 2 1 dB compression RF attenuation 0 dB RF preamplifier and preselection off IF and resolution bandwidhts analyzer mode span 10 Hz and receiver mode analyzer and receiver mode with R amp S ESR B29 option in analyzer and receiver mode Preselection can be switched off in analyzer mode Preamplifier can be switched on off Measurement time analyzer mode sweep time receiver mode receiver mode stepped frequency scan time domain scan stepped frequency scan time domain scan Frequency step size receiver mode receiver mode 9 kHz to 3 6 GHz 10 Hz to 3 6 GHz 9 kHz to 7 GHz 10 Hz to 7 GHz 30 dBm 1 W 23 dBm 0 2 W 150 V 450 V 1 mWs 20 mWs 3 dBm nominal 0 Hz to 10 MHz 3 dB in 1 2 3 5 10 steps 200 Hz 9 kHz 120 kHz 6 dB MHz impulse bandwidth additionally 10 Hz to 100 kHz 6 dB in decade steps 6 fixed filters kHz to 7 GHz 20 dB gain nominal span 0 Hz 1 us to 16000 s span z 10 Hz swept 1 ms to 16000 s span 10 Hz FFT 7 us to 16000 s 50 us to 100 s per frequency 50 us to 100 s per frequency subrange min 1 Hz 0 25 x IF bandwidth Detectors receiver mode max peak min peak quasi peak RMS average average with meter time constant CISPR average RMS average CISPR RMS Displ
16. ixel resolution It can simultaneously display up to six different traces including limit lines in a single diagram This affords the following benefits 1 Time saving operation through simultaneous measurements using different weighting detectors Clear identification of traces in a diagram direct comparison of traces With up to four million values per trace the R amp S ESR can perform seamless frequency scans with narrow IF bandwidths across very wide frequency ranges The R amp S ESR provides high frequency resolution and consequently measures the disturbance frequency with high accuracy This is a major advantage over spectrum analyzers or test receivers that use a lower number of test points The displayed frequency range can be traced back to real measured values even when zooming in closely for example during subsequent detailed analysis The R amp S ESR provides a combined numeric and analog bargraph display of results for up to four detectors includ ing Max Hold function This allows users to rapidly recog nize the effect of changes made to the device under test Receiver RBW CISPR 120 kHz MT 30 dB Preamp Spectrum Real Time Spectrum 100 ms Input 1 DC 20dB Step TD Scan IF Analysis CF 92 4 MHz 1Pk Clr RBW 10 0 kHz Scan Start 30 0 MHz Measuring 10 Span 2 0 MHz Stop 1 0 GHz TT 2222 04 07 2012 Preset antenna factors transducers and user created transducer sets The R amp S ES
17. litudes The time domain analysis func tion of the R amp S ESR can consecutively measure the pulse amplitude and duration on each frequency required by the CISPR standard thus reproducing the functionality of a click rate analyzer To carry out standard compliant analy sis sufficient memory space must be available in order to seamlessly record peak values and quasi peak values for a period of at least two hours With a memory depth 1 Quasi Peak 903 7500 kHz 2 CISPR Av 1 Quasi Peak 7 5098 MHz 7 5233 MHz 2 CISPR Av 10 4730 MHz 1 Quasi Peak 10 5113 MHz 1 Quasi Peak 1 Quasi Peak 1 Quasi Peak 13 5600 MHz 22 5308 MHz 29 9625 MHz Insert Frequency Delete Frequency Sort by Delta Limit Symbols ON Peak List Export Decim Sep Start 150 0 kH Measuring Results of standard compliant final measure ment presented in tabular format stating the offset values deltas with respect to the appli cable limit values Results can be exported as an 21 06 2012 14 04 05 ASCII file for further processing Rohde amp Schwarz R amp S ESR EMI Test Receiver 9 of up to four million values per trace the R amp S ESR is ide ally suited to this task Free of charge application software is available for measurements in line with CISPR 14 1 EN 55014 1 Simultaneous display of up to six traces and four bargraphs The R amp S ESR has a 21 cm 8 4 touchscreen with 800 x 600 p
18. oftware ideally complements the R amp S ESR R amp S EMC32 is modular test software that supports manual as well as partially or fully automated electromagnetic interference and immunity measurements in line with commercial and military stan dards The software provides reliable recording analysis documentation and traceability of measurement results and offers remote control capability for a wide variety of accessory components such as mast and turntable systems The R amp S ES SCAN application software is cost effective user friendly Windows software created especially for dis turbance measurements during development Real Time Spectrum RBW 500 kHz SWT 1s VBW 5S MHz Spectrum Receiver Ref Level 28 00 dBm 7 Att 0 dB iRm Clrw Mode Auto Sweep 70 dBm 80 dBm 90 dBm 100 dBm 110 dBm 120 dBm CF 2 4 GHz Channel Power Bandwidth 20 00 MHz 691 pts WLAN 802 11A Power 32 92 dBm Measuring Span 40 7 MHz Tx Total 32 92 dBm EB Ug Extensive analysis capabilities for general laboratory applications Like all Rohde amp Schwarz EMI test receivers the R amp S ESR is based on a powerful signal and spectrum analyzer the R amp S FSV This means that the extensive measurement ca pabilities of this state of the art instrument are also avail able for the R amp S ESR For disturbance measurements during development users can activate or deactivate the preselection and preamplifier as re
19. quired The R amp S ESR provides test routines for many typical labo ratory measurements see R amp S FSV product brochure PD 5214 0499 12 Tracking generator for scalar network analysis The optional internal R amp S FSV B9 tracking generator en hances the R amp S ESR to operate as a scalar network ana lyzer in the frequency range from 100 kHz to 7 GHz With this option users can quickly and easily determine the frequency dependent insertion loss of test cables or fil ters for example and store the results as correction tables transducers in the R amp S ESR In analyzer mode the R amp S ESR provides test routines for many typical laboratory measure ments The diagram shows a WLAN channel 04 07 2012 14 12 53 power measurement Rohde amp Schwarz R amp S ESR EMI Test Receiver 11 Convenient operation Straightforward display Touchscreen based user interface with undo redo functions The R amp S ESR features a touchscreen GUI for convenient intuitive operation The straightforward menu driven de sign reduces learning time All functions and measure ment parameters can be configured in the conventional manner using the instrument s keys and rotary knob or a mouse and keyboard The large high resolution SVGA dis play provides good readability Up to six prior operating steps can be canceled and re stored using the undo redo softkeys This enables users to quickly toggle between two different states or to cor
20. r 100 kHz to 7 GHz R amp S FSV B9 1310 9545 02 Solid State Drive SSD removable R amp S ESR B18 316 3555 02 Spare Hard Disk Drive HDD removable R amp S ESR B19 1316 3561 02 RF Preamplifier 100 kHz to 7 GHz R amp S FSV B22 310 9600 02 Frequency Extension 10 Hz including EMI bandwidths in decade steps R amp S ESR B29 1316 3578 02 DC Power Supply for 12 V supply voltage R amp S FSV B30 310 9897 02 Hardware for Time Domain Scan and Realtime Analysis R amp S ESR B50 1316 3584 02 Service options Extended Warranty one year R amp S WE1ESR Please contact your local Extended Warranty two years R amp S WE2ESR Rohde amp Schwarz sales office Extended Warranty three years R amp S WESESR Extended Warranty four years R amp S WE4ESR Extended Warranty with Calibration Coverage one year R amp S CWTESR Extended Warranty with Calibration Coverage two years R amp S CW2ESR Extended Warranty with Calibration Coverage three years R amp S CWSESR Extended Warranty with Calibration Coverage four years R amp S CWAESR Rohde amp Schwarz R amp S ESR EMI Test Receiver 15 About Rohde amp Schwarz Rohde amp Schwarz is an independent group of companies specializing in electronics It is a leading supplier of solu tions in the fields of test and measurement broadcasting radiomonitoring and radiolocation as well as secure communications Established more than 75 years ago Rohde amp Schwarz has a global presence and a ded
21. r second which corresponds to a time resolution of 100 us For an even more detailed representation the R amp S ESR repro cesses the recorded data to achieve resolution of up to 60 ns Persistence mode spectral histogram for clear identification of pulsed and continuous disturbances In persistence mode the R amp S ESR writes the seamless spectra into a single diagram The color of each pixel indi cates how often a specific amplitude occurs at a specific frequency Frequently occurring signals can be shown in red for example and sporadic ones in blue If signals no longer occur at a specific frequency with a specific ampli tude the corresponding pixel disappears after a user de finable persistence period This allows users to clearly dis tinguish between pulsed disturbances which are present only for very brief periods and continuous disturbances In addition different pulsed disturbances can easily be distin guished from one another NW Simultaneous display of disturbance spectrum in persistence mode top and as a spectrogram bottom The spectrogram provides seamless information about the timing behavior of distur bances emitted by a DUT the persistence dis play allows a clear distinction between narrow band and broadband disturbances The position Display Config in time of a user selected individual spectrum shown as a white trace in persistence mode is indicated in the spectrogram by marker M1
22. race Detector Frequency Level dBuV 1 Quasi Peak 161 2500 kHz Scan 1Pk Clr Time domain display integrated oscilloscope function The time domain display function of the R amp S ESR allows users to assess the timing behavior of a disturbance sig nal on a fixed frequency comparable to using an oscillo scope The user measures the level versus time on the set receive frequency with a resolution of 50 us to 100 s for example to determine the pulse repetition frequency PRF of a broadband disturbance To reliably measure a pulsed disturbance the dwell time per frequency must be set at least as large as the reciprocal of the signal s pulse repeti tion frequency Based on the measured pulse repetition frequency the user can set the optimum measurement time i e as short as possible and as long as necessary The user can also determine whether and to what extent a narrowband disturbance is fluctuating and whether it is amplitude modulated or pulsed One special application is click rate analysis Thermostatic or program controlled electrical appliances such as wash ing machines and air conditioners generate discontinuous disturbances Due to the aperiodic nature of click type dis turbances the limit values they need to comply with are higher than those for continuous disturbances In order to apply these less stringent limit values users need to mea sure the duration of the clicks their repetition rate click rate and their amp
23. rect erroneous entries Test Automation Scan Table Scan Start 150 0 kHz Scan Stop 7 0 GHz Adjust Axis Step Mode AUTO Insert Range Before Range 1 Time Domain Scan OF m Delete Range Insert Range After Straightforward scan table In receiver mode disturbance measurements in the fre quency domain are controlled by the settings in the scan table The scan parameters are presented in a clear man ner and can be configured as required for a given task or device under test Integrated online help Context sensitive help provides detailed information about the current function and lists the associated remote con trol commands Even less trained users come up to speed quickly and programming becomes an easier task Storage of results and instrument settings to internal or external media Measurement data and instrument setups can be saved to and recalled from the instrument s internal memory or an external storage medium The R amp S ESR accesses exter nal media via USB or LAN and stores results as ASCII files for further processing These files contain the trace data together with the most important instrument settings and are exported via USB or LAN Run Continuous e zZ Run Single p 50 0 kHz 30 0 MHz Edit Scan Table Se 25 kHz 0 kHz o m T ie zZ o m T Rangei J Range2 150 0kHz fS00MHz oomi fa Gone Jizook
24. rum around disturbance signals The optional IF analysis function of the R amp S ESR provides a spectral display of the RF input signal in a selectable range around the EMI receive frequency The IF spectrum display can be coupled to the bargraph display for the cur rent receive frequency Alternatively the center frequency of the IF spectrum can be controlled by the position of the marker which is placed on the EMI signal peaks detected during the frequency scan marker track function The center frequency of the IF spectrum always corre sponds to the current receive frequency The R amp S ESR can therefore be tuned to the signal of interest very accurately and very quickly In addition the IF spectrum provides a detailed overview of the spectrum occupancy around the measurement channel and with sufficiently wide IF bandwidth information about the spectral distribution of a modulated signal in the measurement channel Any sig nals received can be quickly classified as disturbance sig nals or wanted signals CW signals appear in the form of unmodulated carriers whereas pulsed disturbances travel across the screen in the form of narrow lines AM or FM audio demodulation can be activated in parallel making it easier to identify detected signals for example in order to identify and exclude ambient interferers in open area measurements Receiver Final Results RE Input 1 4C AI Level Trace1 EN55011Q Trace2 EN55011A T
25. t aod Jods gt 3 o 4 gt gt o 4 gt o Measuring 12 Range 3 Qocha J LoMHz Goms 1 Odb 1 In receiver mode the R amp S ESR is tuned across ON a user defined frequency range in line with the settings made in the scan table Users can de Freq Axis Bees fine up to ten frequency subranges and config LIN Loe ure the parameters independently for each sub range for example range start stop step size measurement time resolution bandwidth input 05 07 2012 11 48 30 attenuation Removable hard disk drive HDD to keep test data confidential To keep their test data confidential users can exchange the R amp S ESR standard hard disk drive for another neutral hard disk drive R amp S ESR B19 option The test receiver can then be sent in for calibration repair or any other pur pose without any confidential test data leaving the lab Device specific alignment data remains in the test receiver where it is stored separately and independently of user data Remote control via GPIB or LAN The R amp S ESR can be remotely controlled via its stan dard IEC 625 2 IEEE 488 2 interface or a LAN interface 10 100 1000BaseT Robust and compact ideal also for mobile use Drivers for LabView LabWindows CVI VXI Plug amp Play For software integration drivers for LabView LabWindows CVI and VXI Plug amp Play are available free of charge
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