for R&S®EB510 HF Monitoring Receiver
Contents
1. High performance radiomonitoring from 9 kHz to 32 MHz lH a gs 2 iA gos FAN BM A mA m BW NF A an re WM B D 8 8 M r Beg me A De BE Y amd f 1 Wu E m Wu g A WM L 1 u i uU i Y j Ww j W j J a j Baral pU m W WM pg b Sues a ee s B E A S5 D W au Rl Radiomonitoring amp Radiolocation R amp S EB510 HF Monitoring Receiver At a glance The R amp S EB510 HF monitoring receiver is designed to meet the demanding requirements of ITU compliant radiomonitoring tasks in stationary and mobile environments The receiver performs high speed signal search in the spectrum and provides very wideband demodulation as well as spectrum overview It can be operated via the front panel or via remote control software It is the ideal choice for a large variety of applications from single station measurements to nationwide monitoring systems The R amp S EB510 HF monitoring receiver has an outstand ing feature set for monitoring transmissions detecting interference finding unlicensed transmitters or even func tioning as a search receiver in the HF spectrum In addi tion it is exceptionally compact and has a low power de sign The R amp S EB510O is the optimum solution for systems that need a high end receiver but only have limited avail able space When combined with analysis software such as R amp S GX430 for example it becom2. Actual sampling bandwidth compared with selected IF bandwidth The receiver s IF spectrum is digitally calculated using Fast Fourier Transform FFT The use of FFT computation at the IF offers a major advantage The receiver sensitivity and signal resolution are clearly superior to those of a conven tional analog receiver at the same spectral display width IF spectrum FFT calculation of the IF spectrum is performed in a num ber of steps These are described below in simplified form for an exemplary IF bandwidth of 20 MHz BW 20 MHz which yields a wide spectral display IF spectrum Due to the finite edge steepness of the IF filter the sam pling rate f must be larger than the selected IF bandwidth BV eegun The quotient of the sampling rate and the IF bandwidth is a value 1 and is a measure of the edge steepness of the IF filter This relationship is expressed by the following two formulas for the AUTO setting T S const BW spectrum or f BW x const spectrum The value of the constant is dependent on the selected IF bandwidth i e it may vary as a function of the IF bandwidth For an IF bandwidth of ere 20 MHz the con stant has a value of 1 28 Therefore to display a 20 MHz IF spectrum a sampling rate of f 25 6 MHz is required The R amp S EB510 uses a maximum FFT length N of 4096 points to generate the IF spectrum To calculate these points the 25 6 MHz sampling band in the above exam
3. ARGUS system software 1 Full access to receiver functions from a PC 1 Automatic identification of deviations from the desired state i Guided measurements 1 Easy integration into existing R amp S ARGUS radiomonitoring systems 1 Remote operation made easy 1 Nationwide radiomonitoring network at a glance R amp S ARGUS station information system gt page 9 Handoff receiver in networked systems 1 Parallel demodulation of multiple narrowband signals and simultaneous broadband spectrum scanning gt page 11 Rohde amp Schwarz R amp S EB510 HF Monitoring Receiver 5 Interference detection and location in professional radio networks Interference in radiocommunications e g in ground communications not only impedes operation it may even pose a threat to life Reliable detection of radio interference caused for example by defective electronic equipment To master these tasks the receiver includes special func tions such as selectable measurement time and continu ous or periodic level output Since these functions are also effective in the panorama scan spectrum even non periodic interferers can be easily detected Such interferers are otherwise very difficult to detect due to their irregular appearance in a quickly changing spectrum Fast and effective identification of interference sources e g in ground communications The simultaneous use of the R amp S GX430 analysis software allows efficient differe
4. discrete signals f f and f The realtime signal processing at the IF level also includes other high performance capabilities such as overlapping FFT for the optimum capture of pulsed signals and a con figurable bin width for adjusting to the channel spacing of known radio services These functions are described in detail in the user manual Signal display in IF spectrum a4 Input signal IF spectrum a IF bandwidth a Input signal IF spectrum a IF bandwidth f f f f f f 1 2 3 sum Signal resolution in IF spectrum in digital and analog receiver concept 16 Panorama scan In the panorama scan mode the resolution bandwidth of The receiver s maximum FFT bandwidth of 32 MHz makes 2 MHz yields the maximum scan speed while the resolu It possible to perform extremely fast scans with the pan tion bandwidth of 100 Hz yields maximum sensitivity orama scan As is done for the IF spectrum an FFT is used to process the broad window with the possibility of select The resolution bandwidth bin width for the panorama ing a finer resolution scan selectable between 100 Hz and 2 MHz therefore corresponds to the resolution bandwidth BW used in The width of the frequency window and the FFT length the DNL calculation for the IF spectrum see DNL formula number of FFT points are variable and are selected by the under IF spectrum and can be used for calculating the receiver DNL for the panorama scan Moreove
5. a vehicle battery I Space saving system integration due to 19 width and three height units 1 Classification and analysis of signals up to b MHz bandwidth analog and digital modulation through evaluation of the I O data stream using the R amp S GXA30IS software in offline mode i Multichannel digital downconversion DDC within realtime bandwidth gt ROHDEASCHWARZ mBi1 WF MONTORING RECENER Ras 3056 LJ R amp S EBD10 HF Monitoring Receiver Benefits and key features High receiver sensitivity high signal resolution State of the art FFI based digital signal processing for high receiver sensitivity and detection of extremely weak signals without any loss in processing speed Significantly superior signal resolution compared to conventional analog broadband receivers Comprehensive spectrum analysis with polychrome display i Polychrome display for detection and analysis of short duration signals i Multiple color spectrum display polychrome IF spectrum and color coding of signal duration in the spectrum 1 Distinction of overlapping short duration signals displayed in blue and long duration signals displayed in red e g wideband interference resulting from switching power supply leakage Hild Hs TAXTT 9 250 pun siam den Ins T CS PALME FERSETENCE LEAN 00 Fri Lac hri ir i2 Wideband pulsed interference caused by a switching power supply Wide spectrum view without s
6. and step width up to 1600 channels s RF spectrum with user selectable start stop frequency and step width 100 125 200 250 500 625 Hz i eZ 2 25 25 SiOeZ oo coe 25 20 25 50 100 200 500 kHz 1 MHz 2 MHz up to 60 GHz s Ordering information Type description HF Monitoring Receiver with control front panel R amp S EB510 4091 7009 03 frequency range from 9 kHz to 32 MHz IF spectrum max 32 MHz remote control software supplied with receiver HF Monitoring Receiver without control front panel R amp S EBb10 4091 7009 02 frequency range from 9 kHz to 32 MHz IF spectrum max 32 MHz remote control software supplied with receiver Software options Digital Downconverter R amp S EB510 DDC 4072 9500 04 three digital downconverter for user defined placement within realtime bandwidth Panorama Scan R amp S EB510 PS 4072 9200 04 RF scan high speed FFT scan across user selectable range selectable spectral resolution ITU Measurement R amp S EB510 IM 4072 9100 04 ITU compliant measurement of AM FM modulated signals in the R amp S EB510 Selective Call R amp S EB510 SL 4072 9800 04 selective call analysis Software Package in line with ITU R SM 1600 for R amp S GXA30IS 4071 5817 02 ITU compliant measurement of signals with analog or digital modulation Accessories 19 Rack Adapter R amp S ZZA TOA 1109 4187 00 for mounting two R amp S EB510 in a 19 rack both receivers side by side 19 Rack Adapter R amp
7. process several measurement tasks synchronously Remote operation made easy Remote operability is a key requirement for radiomonitor ing systems and here too R amp S ARGUS sets standards It has built in sophisticated bandwidth management SBM that tunes the transmission rate to suit the available net work bandwidth If necessary the software can reduce and compress data automatically This ensures for ex ample that the receiver s IF spectrum and audio streams reach the central station in sufficiently high quality even with narrowband connections Nationwide radiomonitoring network at a glance R amp S ARGUS station information system Another advanced feature of R amp S ARGUS is its station in formation system SIS The SIS shows the current status of every radiomonitoring system location on an electronic map The information provided includes the current con nection status the availability and utilization of measuring equipment ambient parameters such as temperature and humidity as well as the power supply status in unattended radiomonitoring stations The map display also supports remote control features When users click a symbol on the map R amp S ARGUS automatically connects to the receiver in question The R amp S EB510 in the remote station is then ready to accept measurement tasks H a n d off e Ce ive r n Parallel demodulation of multiple narrowband signals and simultaneous broadband spectrum scanning n
8. remote control software is sup plied free of charge with the R amp S EB510 It is part of the R amp S RAMON software family and enables convenient and efficient operation of the receiver from a PC workstation The software offers a straightforward menu structure and intuitive operation so that training requirements for operat Ing personnel are minimal 2505000 Mi SS saa rm 0 ee a oo we g a a pra a gliese The oo se E a a ms amp wx manm Sf es fae es mm 2 i i A 4 Esm kE bene ns rac 3 ETTE F Lt BESRA BOB 2F B 7 5ugm u09i0 m 6fun es on ine oy ene foe os me V ms d fs Ba Wideband panorama scan with Max Hold function and waterfall diagram 12 0 D e rati Nn o D I Nn C D e it fed in via three separate antenna sockets Each of these three sockets can be used for HF signals from 9 kHz to 32 MHz Signals from 9 kHz to 32 MHz are routed directly to the A D converter via an HF preselection block consisting of tunable bandpass filters and a 32 MHz lowpass filter The preselection effectively protects the A D converter against overloading due to the presence of strong signals outside the frequency range of interest Digital signal processing After A D conversion of the signal with a 16 bit converter the signal path is split up In the first path the IF spectrum is calculated using a digi tal downconverter DDC a digital filter and an FFT block The bandwidt
9. 10 can be fully remote controlled by using the LAN interface the remote control software and the open SCPI command set for customized solutions Overview of Rohde amp Schwarz radiomonitoring receivers Realtime IF bandwidth standard optional Demodulation bandwidth Realtime ba bandwidth e IEEE T NM oo R amp S EM100 passes R amp S PR100 MamEE R amp S ESMD NON N N N N N N N N Sas se N co N LOO C ON c c LC T CN C LO co Frequency range standard optional m N N N N N N N N N I ID I I I I I I I xx m oo oo c5 SS on pia cn E pi NO c c c R amp S EB510 HF Monitoring Receiver Applications Interference detection and location in professional radio networks Reliable detection of radio interference caused for example by defective electronic equipment Fast and effective identification of interference sources e g in ground communications gt page 6 Monitoring of user specific radio services i Monitoring of a large number of radio services with different scan modes gt page Multichannel digital downconversion DDC i Parallel monitoring of one plus three signals 1 All DDC channels user selectably distributed within realtime bacndwidth i Independent demodulation level measurement and recording of each channel gt page 8 Nationwide monitoring system for regulatory authorities 1 TU compliant spectrum monitoring using the R amp S
10. EM Display of IF spectrum and use of marker function Rohde amp Schwarz R amp S EB510 HF Monitoring Receiver 11 Convenient remote control with R amp S EB510 Control software Major functional features of R amp S EBb10 Control Fast and simple operation The main functions can be accessed using shortcuts The graphical display of results includes 1 IF spectrum with waterfall diagram 1 Panorama scan spectrum with waterfall diagram 1 Level indication based on demodulation path Users can adapt the colors of the display and the size and arrangement of the windows as required for a specific task or area of application Easy to use measurement functions are available within the diagrams Display storage and playback of spectra and waterfall data R amp S EB510 Control enables the recording and playback of panorama scan and IF signal spectra In addition digi tal audio data and I O baseband data digital IF of up to 5 MHz bandwidth can be stored e g for the subsequent analysis of digitally modulated signals Buffering of frequency scan data in a ring buffer Recording in the ring buffer can be stopped by a mouse click The stored signals are then available in playback mode for analysis Frequency list for marking signals With a mouse click radio channels can be marked saved in a list and graphically placed over the spectrum The frequency list is available for storage and subsequent analysis The R amp S EB510 Control
11. R amp S ARGUS has been a highly successful control software solution for ITU compliant measurement and analysis tasks It offers a variety of mea suring modes designed to support typical measurement procedures and greatly simplify everyday tasks It can also perform a large number of analyses that enable detailed evaluation of measurements and the creation of precise in depth reports These capabilities are now also available in combination with the R amp S EB510 Full access to receiver functions from a PC The user friendly standard interface in R amp S ARGUS makes the entire range of R amp S EB510 functionality available on a PC Measurement results are displayed in realtime in the form of graphics and tables The results are stored along with the receiver settings in an internal database to allow subsequent evaluation in line with ITU requirements The entire system is calibrated taking into account the frequency dependent sensitivity of the antenna and attenuation and loss in cables and switches Automatic identification of deviations from the desired state In combination with R amp S ARGUS the R amp S EB510 can automatically identify whether the current signal sce nario is consistent with expectations Users can define a valid range of values for each measurement parameter depending on the frequency If a measured value is out side the defined range R amp S ARGUS immediately issues an alarm As a result new and unknown tran
12. S ZZA TO2 1109 4164 00 for mounting one R amp S EB510 in a 19 rack including one blind plate DC Power Cable R amp S EB500 DCC 4072 036 00 Calibration documenting Documentation of Calibration Values R amp S EB510 DCV 4072 8403 04 Service options Extended Warranty one year R amp S WE1EB510 Please contact your Extended Warranty two years R amp S WE2EB510 local Rohde amp Schwarz Extended Warranty three years R amp S WESEB510 a Extended Warranty four years R amp S WE4EB510 Extended Warranty with Calibration Coverage one year R amp S CW IEB510 Extended Warranty with Calibration Coverage two years R amp S CW2EB510 Extended Warranty with Calibration Coverage three years Roo EVV SEBS IG Extended Warranty with Calibration Coverage four years R amp S CWAEB510 Your local Rohde amp Schwarz expert will help you determine the optimum solution for your requirements To find your nearest Rohde amp Schwarz representative visit www sales rohde schwarz com Rohde amp Schwarz R amp S EB510 HF Monitoring Receiver 19 Z A a J A i V X VITRE VI OIHU IHLY 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 7b years ago Rohde amp Schwarz has a global presence and a dedic
13. amp Schwarz R amp S EB510 HF Monitoring Receiver 7 Multichannel digital downconversion DDC TW iiie Smooth one plus three demodulation channels can be user distributed within the realtime bandwidth Ws png DE TECT Control interface for managing of DDC information output Parallel monitoring of one plus three signals within realtime bacndwidth When equipped with the R amp S EB510 DDC digital down converter option the receiver has three additional digital downconverters in addition to the wideband demodulation path These converters function entirely in parallel within the realtime bandwidth and can be parameterized inde pendently of one another Each of these digital downconverters features AM FM PULSE 1 0 LSB USB and CW demodulation mode i Comprehensive set of 20 IF bandwidths from 100 Hz to 150 kHz 100 Hz to 9 kHz for LSB USB CW i Squelch function Moreover each DDC with individual AGC provides the complex baseband I Q the associated signal level and an audio signal The data streams output at the DDC channels can be either recorded internally in the receiver or are available via LAN to be recorded by the remote control PC Record ing of four independent data streams is supported by the R amp S EB510 Control software package Nationwide monitoring system for regulatory authorities ITU compliant spectrum monitoring using the R amp S ARGUS system software For more than 20 years
14. as digital data and can be output via the LAN interface as required for the particu lar task Digital audio data is reconverted to analog signals for output via the headphone socket or loudspeaker Analog signals are reconverted from the I O data by a 16 bit D A converter they are then available as analog IF signals or analog video data High receiver sensitivity high signal resolution The R amp S EB510 features an IF bandwidth of up to 32 MHz This allows even very short signal pulses to be captured since the receiver displays the wide bandwidth of 32 MHz in a single spectrum around the set center fre quency without any scanning being required Using the AUTO setting the widest IF bandwidth of 32 MHz yields the widest spectral display the narrowest IF bandwidth of 1 kHz yields maximum sensitivity and resolution Block diagram of digital signal processing Clear write IF panorama path Display and LAN IF spectrum TE IF spectrum 4096 points 1 kHz to 32 MHz R 16 bit HF direct VA E Level Display and LAN measurement i ni mmm Average Demodulation value i path m measurement Lowpass filter Analoaratio Digital audio ia LAN Digital up A a Video IF converter Q data analog output i via LAN Demodulation bandwidths 100 Hz to 5 MHz Video spectrum 14 Signal processing for IF spectrum A a in dBuV RX 20 MHz Frequency in MHz gt 25 6 MHz
15. ated service network in over 70 countries Company headquar ters are in Munich Germany Environmental commitment 1 Energy efficient products i Continuous improvement in environmental sustainability Certified Quality System IS0 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 sk PD 5214 5210 12 Version 02 00 August 2012 R amp S EB510 Data without tolerance limits is not binding Subject to change O 2011 2012 Rohde amp Schwarz GmbH amp Co KG 81671 M nchen Germany 5214521012
16. canning 1 Full 32 MHz IF spectrum display without scanning i Monitoring of entire HF range in a single spectral view with simultaneous demodulation 1 Panorama scan function for spectral overview with narrower preselection Retrieval of information through demodulation and signal analysis in a compact system i Online LAN transfer from an R amp S EBD510 to a PC with R amp S GX430 analysis software for example for operating an efficient small system for signal reception and analysis i Online analysis or recording of captured data using R amp S GX430 provision of data for documentation replay or subsequent additional evaluation 1 ITU compliant signal analysis in line with ITU R SM 1600 using R amp S GX430 and R amp S GX430lIS optimum tool for single channel analysis and measurement of analog and digitally modulated signals in accordance with ITU requirements Efficient operation via remote control i Remote control of all receiver functions via LAN interface SCPI command set 1 LAN interface for providing the maximum measured data rate during receiver operation efficient remote operation in unattended monitoring stations interface description available especially essential for system integrators who need to incorporate the receiver into existing software environments Convenient remote control with R amp S EB510 Control software Short learning curve due to straightforward menu structure and simple operation 1 Alignmen
17. es a complete and compact receiving and analysis system covering the fre quency range from 9 kHz to 32 MHz n ROHDERSCHWANZ E Lena i ec lie BOTA R amp S EB510 with front panel The receiver can be operated with diverse antennas such as broadband omnidirectional antennas and directional an tennas To limit overloading when using wideband anten nas the R amp S EB510 is equipped with a preselection stage as recommended by ITU As a result intermodulation characteristics are significantly improved Due to its compact size and excellent balance between performance and power consumption the R amp S EB510 is designed not just for stationary operation but also for in stallation in vehicles in vessels or in aircraft as payload Key facts 1 Digital direct conversion receiver from 9 kHz to 32 MHz 1 IF spectrum of up to 32 MHz and parallel demodulation with bandwidths from 100 Hz to 5 MHz 1 Fast panorama scan with up to 60 GHz s across the entire frequency range i High speed frequency and memory scan with up to 1600 channels s 1 Polychrome IF spectrum for reliable detection of pulsed signals Spectrum and spectrogram waterfall display on receiver model 03 or on PC via the R amp S EB510 Control software both model 02 and model 03 1AM FM I O AM FM I O video panorama 1 1 Gbit LAN interface for remote control and data output i Comparatively low power consumption for efficient DC operation e g on
18. etwo rke d syste m S Multiple R amp S EB510 receivers can be combined and oper ated as a bundled solution One R amp S EB510 is used as a search receiver the others are used for demodulating sig nals and producing audio or l O data streams The handover of a signal from the search receiver to a data production receiver is carried out from the user worksta tion running with R amp S RAMON system software The major advantage of this system configuration is that the fast signal search across a wide frequency scenario and the narrowband production of multiple audio or I O data streams occur simultaneously This allows the user to achieve optimum results in a minimum of time Multiple R amp S EB510 receivers can be operated together via R amp S RAMON system software FH See Se uem m 35505 Mite i ia ng gt 3s ak mom d uns ELE oe Tx y ai rd H Brass gag I xi ib M amp ea a xHZS TSA m I M E Si ars te CID EYENW Sey WIN M ou LI amp P oF f ar 7 X 3 Search receivers Data production receivers R amp S RAMON system software Se ie Side E Pom ll 10734575 ge NI Rn dm mcum cee o RI Ha 7od4 d 4 dus ec zo oua e ZZ Ji a ash o 4m pee ake os a Un de ao de aa sjim je zd LL pea 3E 7h t amp BLA RE R R 2ZZU 0528 mi f CO ee od se i ae RA Gas ae Bm fr Tenor p Ler Beau amp A PS Er ifie 1175947175 DEL RUMI hacks F
19. frequencies Selecting the panorama scan resolution by varying the bin width Selecting a 12 5 kHz bin width to capture a radio service using 12 5 kHz channel spacing Rohde amp Schwarz R amp S EB510 HF Monitoring Receiver 17 specifications in brief Specifications in brief Frequency Frequency range Demodulation Demodulation modes IF bandwidths Bandwidth IF panorama FFT IF panorama IF panorama span Panorama display Memory scan Frequency scan Panorama scan base unit all IF bandwidths IF bandwidths lt 9 kHz IF bandwidths gt 1 kHz demodulation level and offset measurements 3 dB bandwidth 29 filters up to 4096 point FFT operating modes speed speed with R amp S EB510 PS option speed For data sheet see PD 5214 5210 22 and www rohde schwarz com 18 9 kHz to 32 MHz AM FM M PULSE I O ESB USB Cv ISB 100 150 300 600 Hz 1 1 5 2 1 2 4 2 7 3 1 4 4 8 6 9 1 2 1 5 30 50 120 150 250 300 500 800 kHz 1 1 25 1 5 2 b MHz dynamic overlapping FFT automatic or variable with selectable frequency resolution 0 625 1 25 2 5 3 125 0 25 12 5 25 81 25 50 62 5 100 125 200 250 312 5 500 625 Hz 1 1 25 2 2 5 3 125 5 0 25 8 333 10 12 5 20 25 50 100 200 500 kHz 1 MHz 2 MHz 1 2 5 10 20 50 100 200 500 kHz 1 2 5 10 20 32 MHz clear write average max hold min hold histogram 10000 programmable memory locations up to 1600 channels s user selectable start stop frequency
20. h of the bandpass filter can be selected be tween 1 kHz and 32 MHz Before the IF spectrum is output via the LAN interface or on the display results are postpro cessed using the average min hold or max hold function as selected by the user In the second path which also includes a DDC and digital filters the signal is processed for level measurement or demodulation To process the different signals with opti mum signal to noise ratio the receiver contains IF filters with demodulation bandwidths from 100 Hz to 5 MHz which can be selected independently of the spectral IF bandwidth Prior to the level measurement the absolute value of the level is determined and weighted using the average peak RMS or fast sample function as selected by the user The measured level is then output on the display or via the LAN interface To demodulate analog modulated signals the complex baseband data passes through AM FM USB LSB ISB pulse or CW demodulation stages after the bandpass filter and is subjected to automatic gain control AGC or manu al gain control MGC After the AGC MGC stage the com plex baseband data I O data resulting from the digitally modulated signals is directly output for further processing Block diagram of frontend HF preselection filter bank Lowpass filter HF input 9 kHz to 32 MHz A D 32 MHz converter Rohde amp Schwarz R amp S EB510 HF Monitoring Receiver 13 The results obtained are available
21. ization s own radio network is vital to ensure operational readiness not only for government operators Monitoring of a large number of radio services with different scan modes In the frequency scan mode a user defined frequency range is scanned using fixed channel spacing The receiver steps through the frequency range of interest and checks every channel for occupancy If a signal is detected with a level exceeding the predefined threshold the receiver dwells at the corresponding frequency for the set hold time allowing for the signal to be demodulated and pro cessed In the case of analog modulation the demodu lated signal can be monitored via the headphones or loudspeaker In the memory scan mode predefined channels stored in memory locations are consecutively scanned and analyzed to see if any signals are present The R amp S EB510 offers 10000 user definable memory locations Receive param eters can be assigned separately to each memory location The memory scan mode is particularly useful for scan ning individual frequencies that do not have a fixed chan nel spacing or that use different demodulation modes and bandwidths The memory scan mode offers users a greater degree of freedom than the frequency scan mode in similar applications The frequency scan mode is mainly intended for monitor ing radio services that use fixed channel spacing whereas the memory scan mode is used for variable channel spacing Rohde
22. ntiation between wanted signals and possible interference signals Fast differentiation is especially important in security critical radio scenarios e g vessel traffic service VTS as it prevents high failure costs for the service provider The combination of a fast panorama scan to acquire an overview of the situation with subsequent scanning and analysis in fixed frequency mode based on l O data is particularly well suited to such applications In the panorama scan mode the frequency range of in terest is scanned in defined steps and an FFI of suitable width is calculated for each step The step width for the fast panorama scan can be selected from 100 Hz to 2 MHz to match the channel spacing used by a wide variety of radio services The panorama scan provides high scan rates at narrow resolution bandwidths yielding high sen sitivity and signal resolution without compromising the wideband overview Its high performance and wide range of special functions make the R amp S EB510 an ideal choice for detecting all types of radio interference efficiently FIFRA H3 TH BETEeT AFE ATT dE MOT dep Poe eee 44 505 000 M D T 8 250 Msz a Fh 313 ulia The R amp S EB510 s panorama scan makes it possible to examine the entire HF frequency band including preselection filtering and showing results in the combined spectrum and waterfall display Monitoring of user specific radio Services Smooth operation of an organ
23. ple is divided into 4096 equidistant frequency slices which are also referred to as bins see figure Signal processing for IF spectrum The bandwidth BW of the frequency slices is obtained as follows f 25 6 MHz S BW 6 25 kHz 4096 4096 Rohde amp Schwarz R amp S EB510 HF Monitoring Receiver 15 This means that in the above example only the calculated bandwidth of 6 25 kHz for each bin has to be taken into account as the noise bandwidth in the calculation of the displayed noise level DNL in accordance with the for mula below the effect of the window function Blackman window of the FFT is not considered here for simplicity s sake DNL 174 dBm NF 10 x log BW Hz The quantity NF represents the overall noise figure of the receiver The above example shows that due to the use of the FFT the actual resolution bandwidth RBVV to be taken into ac count in DNL calculation is clearly smaller i e BW than would be expected for the wide unscanned display range of 20 MHz Another advantage of the high spectral resolution used in the FFT calculation is that signals located close together e g f f and f can be captured and represented in the IF spectrum as discrete signals see figure Signal display in IF spectrum If on an analog receiver a resolution bandwidth equal to the set IF bandwidth were selected RBW DV E cidcm a sum signal f would be displayed instead of the three
24. r the user selects the resolution bandwidth to obtain the desired frequency In the panorama scan mode the user can select among 24 resolution see figure Bin width and channel spacing resolution bandwidths from 100 Hz to 2 MHz The resolu tion bandwidth corresponds to the width of the frequency The above explanations show that the use of digital signal slices bin width mentioned under IF spectrum Based processing in a radiomonitoring receiver offers decisive on the selected bin width and start and stop frequency advantages Extremely high sensitivity due to very fine the R amp S EB510 automatically determines the required FFT resolution combined with a broad spectral overview and length and the width of the frequency window for each maximum scan speed significantly increases the probabil scan step he receiver selects these internal parameters ity of intercept in comparison with an analog receiver so that the optimum scan speed is achieved for each reso lution bandwidth see figure Resolution in panorama scan mode Signal processing in panorama scan mode FFT window 1 FFT window 2 FFT window n start stop Frequency in MHz Basic sequence of steps in fast panorama scan mode Resolution in panorama scan mode Bin width and channel spacing Points for FFT calculation max 32 MHz a in dBuV a in dBuV Frequency in MHz aa 7 f2 Frequency in MHz Bin width min 100 Hz xX A max 2 MHz Signal
25. smitters can be discovered just as easily as transmitters that exceed li censed transmission parameters e g excessive frequency deviation Guided measurements One unique feature in R amp S ARGUS are its guided mea surement modes Users simply choose a frequency range and the type of measurement task field strength spec trum occupancy or bandwidth for example R amp S ARGUS then configures the right device settings automatically and selects the appropriate antenna based on the frequency and polarization This allows even relatively inexperienced users to conduct complex measurements with the R amp S EB510 Rohde amp Schwarz R amp S EB510 HF Monitoring Receiver 9 Station information system SIS display An example map showing a number of monitoring stations and their current status indicated by different colors 10 Easy integration into existing R amp S ARGUS radiomonitoring systems The R amp S EB510 is quick and easy to integrate into existing infrastructures as a replacement for existing equipment or to expand a station s measurement capabilities Impor tantly the receiver can operate not just in combination and coordination with other equipment such as direction find ers and specialized analysis devices but also as a handoff receiver in a networked system The ability to operate in parallel is not confined to the devices within a single radio monitoring station Multiple devices at separate stations can
26. t of displayed signals depending on task optimum display on screen 1 Remote control of receiver via PC recording of measured data on hard disk and replay of data on PC for analysis purposes 1 Expansion of remote control software functionality through options and add ons from the R amp S RAMON software suite gt page 12 Future ready investment i Wide realtime bandwidth and very high scan speed for fast and reliable detection of all signal types in the HF range i Reception demodulation and processing of signals of current and future radio services in the HF spectrum Rohde amp Schwarz R amp S EB510 HF Monitoring Receiver 3 R amp S EBD10 HF Monitoring Receiver Model overview The design concept of the R amp S EB510 is based on the current R amp S EBbOO middle class receiver Both receivers feature an HF frontend module similar to that of the R amp S ESMD high end wideband monitoring receiver The R amp S EB510 HF monitoring receiver completes the receiver portfolio addressing users who concentrate only on the HF range Offering excellent RF performance high dynam ic range and powerful preselection this receiver provides superior HF reception When equipped with a front panel the R amp S EB510 can be directly operated via the frontend GUI and also easily incorporated into a system network Without front panel it is ideal for system applications where direct access to the equipment is not necessary The R amp S EB5
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