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keysight technologies cmmb x-series measurement application N6158A & w6158a technical overview
introduction C measure cmmb transmitters, exciters, modulators, gap-fllers, tuners, or amplifers performance C perform one-button tests with cmmb standard compliant pass/fail limit C use hardkey/softkey manual user interface or scpi remote user interface C leverage built-in, context-sensitive help C move the application between x-series signal analyzers with transportable licensing
cmmb measurement application the cmmb measurement application pro - vides one-button standard-based power and modulation analysis capabilities to help your design, evaluation and manufac - turing of cmmb modulators, transmitters, amplifers, tuners and gap-fllers/repeat - ers. with the optional analog baseband iq inputs in the pxa or mxa signal analyzer, it can also provide the fexibility of mea - suring signal quality and modulation accu - racy with the rf input or analog iq input. key parameter setup C device type: transmitter/exciter C measurement type: plch/timeslot/frame C modulation format: bpsk/qpsk/16qam C trigger mode: external trigger, periodic timer, free run C input: rf or analog iq (only available in the n9030a pxa or n9020a mxa) for signal quality and modulation ac - curacy measurements C the cmmb measurement application is just one in a common library of more than 25 measurement applications in the key - sight technologies, inc. x-series, an evo - lutionary approach to signal analysis that spans instrumentation, measurements, and software. the x-series analyzers, with upgradeable cpu, memory, disk drives, and i/o ports, enable you to keep your test assets current and extend instrument longevity. proven algori-thms, 100% code- compatibility, and a common ui across the x-series create a consistent measure - ment framework for signal analysis that ensures repeatable results and measure - ment integrity so you can leverage your test system software through all phases of product development. in addition to fxed, perpetual licenses for our x-series measurement applications, we also offer transportable licenses which can increase the value of your investment by allowing to you transport the application to multiple x-series analyzers. 03 | keysight | cmmb x-series measurement application N6158A & w6158a - technical overview
cmmb standards overview china multimedia mobile broadcasting (cmmb) is a mobile digital video standard developed in china by the state admin - istration of radio, film, and television. announced in 2006, cmmb network has been deployed in more than hundreds of cities in china. the core part of cmmb is satellite and terrestrial interactive multiservice infra - structure (stimi). it uses both satellite and terrestrial signals to obtain effective coverage both in densely populated cities and in sparsely populated rural areas. cmmb system supports single-frequency network (sfn) and multiple-frequency network (mfn). cmmb physical layer can support n (1~39) data streams at the same time (fig 1). each data stream is confgurable on chan - nel coding, constellation and timeslots allocation. that means cmmb signal can broadcast up to 39 services (e.g., sdtv, hdtv), giving each service different error protections. the cmmb broadcasting system uses physical logical channels (plch) to trans - mit the upper-layer services. the alloca - tion of plch is shown in fig 2. the plchs include one control logical channel (clch) and 1~39 service logical channels (slch). clch contains cmmb broadcast system control information and occupies only time slot 0. slch can be confgured to contain one or more time slots to transmit one broadcasting service. figure 1. the block diagram of cmmb system figure 2. cmmb plch 04 | keysight | cmmb x-series measurement application N6158A & w6158a - technical overview
rf transmitter tests the rf transmitter test requirements for cmmb transmitter and exciter are efned in gd/j020-2008 technical specifcation and methods of mea-surement for mobile multimedia broadcasting transmitters and tech-nical specifcation and method of measurement for mobile multimedia broadcasting exciters (draft) standards. table 1 shows rf transmitter and exciter tests defned by the specs along with the corresponding measurements provided by the cmmb measurement application. table 1. required rf transmitter and exciter measurements and the corresponding measurements in n/w6158a and other modes test item gd/j020-2008 (for transmitter measurement) test specifcation (for exciter measurement) n/w6158a cmmb measurement application frequency adjustable step spectrum analyzer mode (marker counter function) frequency stability spectrum analyzer mode (marker counter function) frequency accuracy spectrum analyzer mode (marker counter function) rf power channel power (rf spectrum view) rf power stability channel power (rf spectrum view) rf effective bandwidth spectrum analyzer mode (marker counter) shoulder attenuation channel power (shoulder attenuation view) in-band spectrum fatness modulation accuracy (spectral fatness view) spectrum mask channel power (spectrum mask view) or spectrum emission mask useless power in adjacent channel acp power outside adjacent channel acp phase noise n/w9068a phase noise measurement application peak-to-average power ratio power stat ccdf modulation error ratio modulation accuracy (result metrics view) 05 | keysight | cmmb x-series measurement application N6158A & w6158a - technical overview
measurement details table 2. one-button measurements provided by the cmmb measurement application technology cmmb measurement application N6158A, w6158a x-series signal analyzer pxa, mxa, exa, cxa measurements channel power rf spectrum shoulder attenuation adjacent channel power spectrum emission mask power statistic ccdf occupied bandwidth monitor spectrum iq waveform modulation accuracy rms evm (%) peak evm (%) position of peak evm rms mer (db) peak mer (db) position of peak mer rms mag error (%) peak mag error (%) position of peak mag error rms phase error (deg) peak phase error (deg) position of peak phase error frequency error (hz) tx power (dbm) quadrature error (deg) amplitude imbalance (%) timing skew (s) trigger difference (s) mer/evm vs. subcarriers/frequency amplitude vs. subcarriers (db) phase vs. subcarriers (deg) group delay vs. subcarriers (ns) channel impulse response (db) mer vs. timeslot (db) mer of data (db) mer of continual pilot (db) mer of scatter pilot (db) in-band spectrum ripple amax-ac (db) in-band spectrum ripple amin-ac (db) region index transmitter index measurements as defned by the cmmb standard, as well as a wide range of ad - ditional measurements and analysis tools, are available with a press of a button (table 2). these measurements are fully remote controllable via the iec/ieee bus or lan, using scpi commands. analog baseband measurements are avail - able on the pxa or mxa signal analyzer equipped with bbiq hardware. supported baseband measurements include all of the modulation quality plus i/q wave-form and ccdf measurements. 06 | keysight | cmmb x-series measurement application N6158A & w6158a - technical overview
figure 3. cmmb constellation and mer results figure 5. cmmb result metrics figure 7. cmmb channel impulse response view figure 4. cmmb iq quad view figure 6. cmmb mer vs. timeslot figure 8. cmmb shoulder attenuation 07 | keysight | cmmb x-series measurement application N6158A & w6158a - technical overview
key specifcations performance specifcations description pxa mxa exa cxa channel power 7.512 mhz integration bandwidth ?50 dbm (nom) ?50 dbm (nom) ?50 dbm (nom) ?50 dbm (nom) absolute power accuracy 20 to 30 c 0.61 ( 0.19 db 95%) 0.82 db ( 0.23 db 95%) 0.94 db ( 0.27 db 95%) 1.33 db ( 0.61 db 95%) measurement foor ?85.7 dbm ?82.7 dbm ?78.7 dbm ?75.7 dbm channel power with shoulder attenuation view 7.512 mhz integration bandwidth ml 1 = C14.0 dbm (nom) ml 1 = C16.0 dbm (nom) ml 1 = C16.0 dbm (nom) ml 1 = C15.0 dbm (nom) dynamic range, relative offset freq 4.2 mhz 98.4 db (103.7 db typ) 92.2 db (98.5 typ) 86.9 db (94.0 db typ) 84.5 db (91.7 db typ) power statistics ccdf minimum power at rf input ?50 dbm (nom) ?50 dbm (nom) ?50 dbm (nom) ?50 dbm (nom) histogram resolution 0.01 db 0.01 db 0.01 db 0.01 db adjacent channel power minimum power at rf input; 0 to 55 c ?36 dbm (nom) ?36 dbm (nom) ?36 dbm (nom) ?36 dbm (nom) acpr accuracy 7.512 mhz noise bandwidth, method = ibw offset freq 8 mhz 0.18 db 0.44 db 0.93 db 1.36 db 1. ml (mixer level) is rf input power minus attenuation. defnitions C specifcations describe the performance of parameters covered by the product warranty. C 95th percentile values indicate the breadth of the population (2) of performance tolerances expected to be met in 95% of cases with a 95% confdence. these values are not covered by the product warranty. C typical values are designated with the abbreviation "typ." these are performance beyond specifcation that 80% of the units exhibit with a 95% confdence. these values are not covered by the product warranty. C nominal values are designated with the abbreviation "nom." these values indicate expected performance, or describe product performance that is useful in the ap - plication of the product, but is not covered by the product warranty. C pxa specifcations apply to analyzers with frequency options of 526 and lower. for analyzers with higher frequency options, specifcations are not warranted but per - formance will nominally be close to that shown in this section. note: data subject to change 08 | keysight | cmmb x-series measurement application N6158A & w6158a - technical overview
performance specifcations (continued) description pxa mxa exa cxa spectrum emission mask 8 mhz integration bandwidth, rbw = 3.9 khz 4.2 mhz offset dynamic range, relative 98.4 db (103.7 db typ) 92.2 db (98.5 db typ) 86.9 db (94.0 db typ) 84.5 db (91.7 db typ) sensitivity, absolute C114.5 dbm (C118.5 dbm typ) C110.5 dbm (C115.5 dbm typ) C105.5 dbm (C111.5 dbm t yp) C102.5 dbm (C108.5 dbm typ) accuracy relative 0.10 db 0.18 db 0.18 db 0.27 db absolute, 20 to 30 c 0.62 db ( 0.20 db 95%) 0.88 db ( 0.23 db 95%) 1.05 db ( 0.31 db 95%) 1.53 db ( 0.64 db 95%) 10.0 mhz offset dynamic range, relative 100.8 db (106.2 db typ) 94.6 db (100.6 db typ) 89.3 db (96.0 db typ) 87.2 db (95.0 db typ) sensitivity, absolute C114.5 dbm (C118.5 dbm typ) C110.5 dbm (C115.5 dbm typ) C105.5 dbm (C111.5 dbm t yp) C102.5 dbm (C108.5 dbm typ) accuracy relative 0.12 db 0.21 db 0.21 db 0.36 db absolute 0.62 db ( 0.20 db 95%) 0.88 db ( 0.23 db 95%) 1.05 db ( 0.31 db 95%) 1.53 db ( 0.64 db 95%) modulation analysis ml 1 = C20 dbm, 20 to 30 c clch + slch0, clch: timeslot 0, ldpc 1/2, reed solomon code (240,240), interleaver mode 1, modulation type bpsk slch0: timeslot 1-39, ldpc 1/2, reed solomon code (240,240), interleaving mode 1, modulation type 16qam evm eq off operating range 0 to 16% 0 to 16% 0 to 16% 0 to 16% floor 0.39% 0.54% 0.70% 1.07% accuracy from 0.4%/0.54%/0.7% (pxa/mxa/exa) to 1.0% 0.20% 0.30% 0.30% from 1.0% to 2.0% 0.10% 0.20% 0.30% from 2.0% to 16.0% 0.40% 0.40% 0.40% mer eq off operating range 16 db 16 db 16 db 16 db floor 48 db 45 db 43 db 39.4 db accuracy from 39 to 48 db/45 db/43 db (pxa/mxa/exa ) 2.83 db 2.78 db 2.93 db from 34 to 39 db 0.50 db 0.89 db 1.41 db from 16 to 34 db 0.23 db 0.34 db 0.52 db frequency error 2 range C20 to 20 khz C20 to 20 khz C20 to 20 khz C20 to 20 khz accuracy 1 hz + tfa 3 1 hz + tfa 3 1 hz + tfa 3 1 hz + tfa 3 quad error range C5 to 5 deg C5 to 5 deg C5 to 5 deg C5 to 5 deg amplitude imbalance range C1 to +1 db C1 to +1 db C1 to +1 db C1 to +1 db 1. ml (mixer level) is rf input power minus attenuation. 2. the accuracy specifcation applies at the evm = 1%. 3. tfa = transmitter frequency frequency reference accuracy. 09 | keysight | cmmb x-series measurement application N6158A & w6158a - technical overview
ordering information software licensing and confguration choose from two license types: C fixed, perpetual license: this allows you to run the application in the x-series analyzer in which it is initially installed. C transportable, perpetual license: this allows you to run the application in the x-series analyzer in which it is initially installed, plus it may be transferred from one x-series analyzer to another. the table below contains information on our fxed, perpetual licenses. for more information, please visit the product web pages. N6158A & w6158a cmmb x-series measurement application description model-option additional information pxa, mxa, exa cxa cmmb N6158A-2fp w6158a-2fp for a complete list of specifications refer to the appropriate specifications guide. pxa: www.keysight.com/find/pxa_specifications mxa: www.keysight.com/find/mxa_specifications exa: www.keysight.com/find/exa_specifications cxa: www.keysight.com/find/cxa_specifications try before you buy! free 30-day trials of x-series measurement applications provide unrestricted use of each applica - tions features and functionality on your x-series analyzer. redeem a trial license online today: www.keysight.com/fnd/x-series_trial 10 | keysight | cmmb x-series measurement application N6158A & w6158a - technical overview
hardware confguration n9030a pxa signal analyzer description model-option additional information analog baseband iq (bbiq) inputs n9030a-bba required for analog baseband measurement 3.6, 8.4, 13.6, 26.5, 42.98, 44 or 50 ghz frequency range n9030a-503, -508, -513, -526, -543, -544 or -550 one required precision frequency reference n9030a-pfr recommended electronic attenuator, 3.6 ghz n9030a-ea3 recommended preamplifer, 3.6, 8.4, 13.6, 26.5, 42.98, 44 or 50 ghz n9030a-p03, -p08, -p13, -p26, -p43, -p44 or p50 one recommended analysis bandwidth to 25, 40, or 160 mhz n9030a-b25, -b40, or -b1x one optional n9020a mxa signal analyzer description model-option additional information 3.6, 8.4, 13.6, or 26.5 ghz frequency range n9020a-503, -508, -513, or -526 one required analog baseband iq (bbiq) inputs n9020a-bba required for analog baseband measurement precision frequency reference n9020a-pfr recommended electronic attenuator, 3.6 ghz n9020a-ea3 recommended preamplifer, 3.6, 8.4, 13.6, or 26.5 ghz n9020a-p03, -p08, -p13, or -p26 one recommended analysis bandwidth to 25 or 40 mhz n9020a-b25, -b40 one optional n9010a exa signal analyzer description model-option additional information 3.6, 7.0, 13.6, or 26.5 ghz frequency range n9010a-503, -507, -513, or -526 one required precision frequency reference n9010a-pfr recommended fine step attenuator n9010a-fsa recommended electronic attenuator, 3.6 ghz n9010a-ea3 recommended preamplifer, 3.6 or 7.0 ghz n9010a-p03 or -p07 one recommended analysis bandwidth to 25 or 40 mhz n9010a-b25, -b40 one optional n9000a cxa signal analyzer description model-option additional information 3.0, 7.5, 13.6, or 26.5 ghz frequency range n9000a-503, -507, -513, or -526 one required precision frequency reference n9000a-pfr recommended analysis bandwidth to 25 mhz n9000a-b25 optional tracking generator, 9 khz to 3ghz or 6 ghz n9000a-t03 or t06 one optional fine step attenuator n9000a-fsa recommended preamplifer, 3.0, 7.5, 13.6, or 26.5 ghz n9000a-p03, -p07, -p13, or -p26 one recommended wideband if output n9000a-cr3 optional 11 | keysight | cmmb x-series measurement application N6158A & w6158a - technical overview
related literature n6 158a and w6158a cmmb measurement application, demonstration guide, literature number 5990-5934en N6158A & w6158a cmmb measurement application, measurement guide, part number n6158-90002 N6158A & w6158a cmmb measurement application, user's and programmer's reference, part number n6158-90001 web product page: www.keysight.com/find/N6158A www.keysight.com/find/w6158a x-series measurement applications: www.keysight.com/find/x-series_apps x-series signal analyzers: www.keysight.com/find/x-series application pages: www.keysight.com/find/digitalvideo digital video solution table: www.keysight.com/find/digitalvideo_solution 12 | keysight | cmmb x-series measurement application N6158A & w6158a - technical overview
13 | keysight | cmmb x-series measurement application N6158A & w6158a - technical overview mykeysight www.keysight.com/find/mykeysight a personalized view into the information most relevant to you. www.lxistandard.org lan extensions for instruments puts the power of ethernet and the web inside your test systems. keysight is a founding member of the lxi consortium. three-year warranty www.keysight.com/find/threeyearwarranty keysights commitment to superior product quality and lower total cost of ownership. the only test and measurement company with three-year warranty standard on all instruments, worldwide. keysight assurance plans www.keysight.com/find/assuranceplans up to five years of protection and no budgetary surprises to ensure your instruments are operating to specification so you can rely on accurate measurements. www.keysight.com/go/quality keysight technologies, inc. dekra certified iso 9001:2008 quality management system keysight channel partners www.keysight.com/find/channelpartners get the best of both worlds: keysights measurement expertise and product breadth, combined with channel partner convenience. for more information on keysight technologies products, applications or services, please contact your local keysight office. the complete list is available at: www.keysight.com/find/contactus americas canada (877) 894 4414 brazil 55 11 3351 7010 mexico 001 800 254 2440 united states (800) 829 4444 asia pacifc australia 1 800 629 485 china 800 810 0189 hong kong 800 938 693 india 1 800 11 2626 japan 0120 (421) 345 korea 080 769 0800 malaysia 1 800 888 848 singapore 1 800 375 8100 taiwan 0800 047 866 other ap countries (65) 6375 8100 europe & middle east austria 0800 001122 belgium 0800 58580 finland 0800 523252 france 0805 980333 germany 0800 6270999 ireland 1800 832700 israel 1 809 343051 italy 800 599100 luxembourg +32 800 58580 netherlands 0800 0233200 russia 8800 5009286 spain 800 000154 sweden 0200 882255 switzerland 0800 805353 opt. 1 (de) opt. 2 (fr) opt. 3 (it) united kingdom 0800 0260637 for other unlisted countries: www.keysight.com/find/contactus (bp-02-20-15) this information is subject to change without notice. ? keysight technologies, 2013 - 2015 published in usa, april 17, 2015 5990-4375en www.keysight.com

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