Kathrein MSK 33, 9986492 manual Broadband Cable Analysis Measuring System MSK, Measuring principle

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Broadband Cable Analysis Measuring System MSK 33 /

MVG

The broadband cable analysis system consists of the antenna measuring instrument MSK 33 (including return path option) and the signal generator MVG 10.

Both units function in the frequency range from 4.0 MHz to 860 MHz.

It allows the measurement of cable systems in CATV range (down- stream) and in the return path range (upstream).

The measurement can also be carried out in the supplied cable.

The signal generator MVG 10 can wobbulate in many segment ranges, which means that ranges which are occupied can be locked by the generator, thus allowing TV reception not to be disturbed.

Therefore, before the measurement, make a frequency and level plan! The MVG 10 requires a bandwidth of ca. 500 kHz for transmitting the telemetric data, which means, that the set frequency points must have at least a distance of 250 kHz from the used signal on the cable sys- tem, provided the amplitudes of the used signal and MVG 10 signal are the same.

Before each frequency change, the MVG 10 transmits the next recep- tion frequency to the MSK 33 via a telemetric signal. In occupied ranges, which must not be swept, the MSK 33 can carry on the meas- urements in the same raster with maximum scanning speed. During this time, the MVG 10 pauses. The MSK 33 measures the transmitted level and represents in the spectrum. the measurement can be printed out via the built-in printer.

Measuring principle

MVG10

MSK33

Report FRQa+1

FRQa Transmitting range

Report FRQy
FRQx
Transmitting-free
range	sweep

Report FRQz

FRQy Transmitting range

Report FRQa

FRQz

FRQa Recording

FRQx

fast

FRQy Recording

FRQz

MVG10

CATV system	MSK33
upstream
or
downstream

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Contents Sat/TV/FM Test Receiver MSK Page Preface Contents Checking the LNB supply voltage of a satellite receiver Selecting the colour standards PAL, Secam and Ntsc Mpeg transport stream interface TS-Parallel, Lvds optional Measuring an audio signal via the AV socket Scart Measurement of analogue signals in Sat operation 100 107 113General safety information Explanation of symbolsImportant Notes Validity of this manualSafety Instructions ConnectionsProper use Mechanical loadbearing capacityFunctions FunctionsFunctions overview FunctionReturn path LP DVB-S DVB-S/C/TDisplays, Operating Elements and Connections Front panelMains connection Mains switch DC socket Option / XLR-socket Rear panelHeadphone connection TS parallel Option 10 AUXObserving angle of the on screen display Side view MSKOperating Concept ScreenFrequently recurring softkeys General information for operation Menu selectionMain menu Accu CAP % I=0.00 aPlace of installation of the MSK Mains voltage / mains switchOn/Off switch Safety fuseAccumulator and Battery Operation Accumulator operationDC socket option Connections Measurement Possibilities Level measurementMaximal input level Sat Operation Sat menuSetting of the LNB voltage supply Selecting the LO frequencyEntering the transponder frequency Switch-over of Analog digit. Dvbs Bargraph Level range Comment DisplayIII Calling up menu LNB-CONTROLKHz control signal LNB control menuLNB supply voltage LNB current drawChecking the LNB supply voltage of a satellite receiver Calling up the DiSEqC/V SEC menuDiSEqC DiSEqC menu Submenu for entering DiSEqC commands TX display fieldDisplay field a Display field BExample Entering and transmitting a DiSEqC command Simple DiSEqCData burst Tone burst UFOmicro DiSEqC menu General informationDisplay fields RX 0 E2 10Tx+rx Command 1390Operating the menus ModusSat Operation Sending a V-SEC command TX SEC menuEntering the hex numbers Level-dependent acoustic signal Initial ANALOG-menuCalling up the sound subcarrier MenuSecond Anlaog menu Video polarityAudio carrier setting Setting of the de-emphasisSat subcarrier menu Audio carrier frequencyAudio carrier tables for the satellite reception Audio carrier table for reception typeDigital Measurements SAT Digital menu27.500 Level measurement Digital Min./Max. levels TV Operation TV menuC10 210.25MHz A65.0dBµV Rf chanTV control menu TV-DiSEqC /VSEC menuLNB U= 0.0 V I= 0 mA Analogue menu Selecting the standardAudio carrier table for TV reception Selecting the audio carriersMeasuring the min./max. level Measuring the current levelSelecting the colour standards PAL, Secam and Ntsc Measuring audio carrier spacingTV Digital menu Selecting demodulation for DVB-C measurementMode 900 SR1DVB-T optional Selecting channel bandwidthsChBW 8MHz Return Path if Menu Return path if menuAnalog menu Audio carrier table for if receptionMeasurement of the min./max. level Measurement of the audio carrier spacingMeasurement of the current level QAM64 mode Entering symbol rateIf RP Digital Menu Radio Operation Radio menuRadio Analog menu FM Measure ALL Measuring the min/max levelAV Menu Decoder operationDecoder operation baseband Video input Video outputBreaking voltage RGB operationMpeg transport stream interface TS-Parallel, Lvds optional Mpeg Decoder Menu Optional PAT 083sat KiKa Phoenix Setting Menu Unit dBmVOffset 0.0 dB Screen setup Screen MenuSetting the date Setting the time Click buttonSystem Menu Calls up the SYS TEM menuSaving and calling up unit settings Saving the unit settingsCalling up saved settings Copy MenuPrinting out all measurements in TV mode Printing out all measurements in Sat modeMode Menu SpectrText Menu Enlarging the videotextHolding the videotext Original videotext sizeHorizontal zoom Reducing the video signal Horizontal zoom -Enlarging the video signalScope Menu Video scope menuMeasurement of the amplitude of the video signal Measurement of video signals via the AV socket ScartSelecting the video line Audio Scope TimePos Position and triggering of the DiSEqC signal DiSEqC ScopeSaving function Shot ContSpectral Menu Marker Span Large ¡ mark ßlevelAna MaxMarker Ana Marker DigMeasurement of digital signals in Sat operation Cross-polarisation measurement on signals in SAT operationZoom marker Max off Constellation diagram for Qpsk DVB-S Measurement of the bit error rate BERConst Menu Colour representation of I/Q value pairsMeasurement of signal noise ratio SNR Carrier offsetFrontend locked Selecting the symbol rate symbol-clock Inverting /not inverting a constellation diagram27.500 SR Selecting the code rateExamples for Qpsk constellation diagrams Constellation diagram for QAM DVB-C Measurement of modulation error rate MERInverting /not inverting constellation diagram ZoomExamples for QAM constellation diagram Const Menu Constellation diagram DVB-T optional Measurement of bit error rate BERMeasurement of signal noise ration SNR Carrier modeHierarchy Code rate Guard Invers Frontend locked Channel display Impulse response representation Echo representation optional Broadband Cable Analysis Measuring System MSK Measuring principleTrack MVG10 Upstream measurement Downstream measurementMSK33 MVG10 RGB MSK33Cable system With return path capable amplifiers Auto Measure Display of the check pointInterfaces Modem / RS 232 interfaceConnection cable for modem / RS Setting baud rate Setting local echoSetting hardware handshake Modem/RS232 menuCode Password TTY modeAnsi mode Log-in procedureExample for logging-in in Ansi mode Requesting helpInterfaces List of the command abbreviations Loading and saving predefined settings STUSTU RET LDUMaintenance, Storage and Customer Service Printer paper-exchanging the ribbon Before opening the unit, disconnect the supply voltageRibbon exchange Overview of DiSEqC commands Command overview framing byteCommand overview address byte Technical AppendixCommand overview command byte Reset Reset DiSEqC minicontrollerDiSEqC commands for Kathrein matrices Command overview data byteCommand for Kathrein matrix 9xx-series Command for Kathrein matrix EXRChannel tables Channel and frequency table standard B/G frequency in MHzVHF-CCIR UHF-CCIR USB/OSB ESBChannel and frequency table standard Lfrequency in MHz VHF UHFChannel and frequency table standard D/K frequency in MHz VIIViii XIIChannel and frequency table standard I frequency in MHz Channel and frequency table standard M/N frequency in MHz Channel and frequency table standard M/Nfrequency in MHz Technical Data Technical dataPower supply SNR Qpsk BERMER Accessories Scope of deliveryAssignment of the Scart socket Assignment of RS232 socket TXD RXD RTS CTS DSR GND DCD DTRAssignment of socket TS Parallel optional Unit variants Downloading New MSK33 Operating Software General notes114 115