DreamGEAR MSK 33 manual Impulse response representation Echo representation optional

Page 83

DVB-T

zoom	Press this button to enlarge the
on►	constellation diagram. The upper left-hand
	section of the constellation diagram is now
	represented and allows a closer look of

signal symbols. By pressing the button again, the original size of the constellation diagram is represented.

Impulse response representation (Echo representation) (optional)

By means of the impulse response representation, it is possible to measure echoes in the transmission path or multiple path reception. The green line (on the left in the screen to dB) represents the received used carrier. The other (red) lines are echoes. For multiple path reception, pre-echoes can also occur, if an unwanted transmitter has a shorter distance to the receiver as desired.

With the button „dist. km/µs,“ you can switch the measurement between running time and distance.

With the cursor buttons, ◄►, you can move the yellow marker for measuring the distance or the time and the level of reflection.

Echo representation: marker display in µs

Echo representation: marker display in km

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Contents Operating manual 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 100 113 107Validity of this manual General safety informationExplanation of symbols Important NotesMechanical loadbearing capacity Safety InstructionsConnections Proper useFunctions FunctionsDVB-S DVB-S/C/T Functions overviewFunction Return path LPFront panel Displays, Operating Elements and ConnectionsTS parallel Option 10 AUX Mains connection Mains switch DC socket Option / XLR-socketRear panel Headphone connectionSide view MSK Observing angle of the on screen displayFrequently recurring softkeys Operating ConceptScreen Accu CAP % I=0.00 a General information for operationMenu selection Main menuSafety fuse Place of installation of the MSKMains voltage / mains switch On/Off switchDC socket option Accumulator and Battery OperationAccumulator operation Connections Maximal input level Measurement PossibilitiesLevel measurement Sat menu Sat OperationEntering the transponder frequency Setting of the LNB voltage supplySelecting the LO frequency Calling up menu LNB-CONTROL Switch-over of Analog digit. DvbsBargraph Level range Comment Display IIILNB current draw KHz control signalLNB control menu LNB supply voltageDiSEqC Checking the LNB supply voltage of a satellite receiverCalling up the DiSEqC/V SEC menu DiSEqC menu Display field B Submenu for entering DiSEqC commandsTX display field Display field aData burst Tone burst Example Entering and transmitting a DiSEqC commandSimple DiSEqC RX 0 E2 10 UFOmicro DiSEqC menuGeneral information Display fieldsModus Tx+rx Command1390 Operating the menusSat Operation Entering the hex numbers Sending a V-SEC command TXSEC menu Menu Level-dependent acoustic signalInitial ANALOG-menu Calling up the sound subcarrierVideo polarity Second Anlaog menuSelecting the subcarrier recep Audio carrier settingSetting of the de-emphasis Sat subcarrier menuAudio carrier table for reception type Audio carrier tables for the satellite reception27.500 SR Digital MeasurementsSAT Digital menu Level measurement Digital Min./Max. levels Rf chan TV OperationTV menu C10 210.25MHz A65.0dBµVLNB U= 0.0 V I= 0 mA TV control menuTV-DiSEqC /VSEC menu Selecting the audio carriers Analogue menuSelecting the standard Audio carrier table for TV receptionMeasuring audio carrier spacing Measuring the min./max. levelMeasuring the current level Selecting the colour standards PAL, Secam and NtscMode TV Digital menuSelecting demodulation for DVB-C measurement Selecting channel bandwidths DVB-T optionalReturn path if menu Return Path if MenuAudio carrier table for if reception Analog menuMeasurement of the current level Measurement of the min./max. levelMeasurement of the audio carrier spacing If RP Digital Menu QAM64 modeEntering symbol rate Radio Analog menu Radio OperationRadio menu Measuring the min/max level FM Measure ALLVideo output AV MenuDecoder operation Decoder operation baseband Video inputMpeg transport stream interface TS-Parallel, Lvds optional Breaking voltageRGB operation 3sat KiKa Phoenix Mpeg Decoder Menu OptionalPAT 08 Offset 0.0 dB Setting MenuUnit Screen Menu Screen setupCalls up the SYS TEM menu Setting the dateSetting the time Click button System MenuCopy Menu Saving and calling up unit settingsSaving the unit settings Calling up saved settingsPrinting out all measurements in Sat mode Printing out all measurements in TV modeSpectr Mode MenuOriginal videotext size Text MenuEnlarging the videotext Holding the videotextVideo scope menu Horizontal zoom -Enlarging the video signalHorizontal zoom Reducing the video signal Scope MenuSelecting the video line Measurement of the amplitude of the video signalMeasurement of video signals via the AV socket Scart Pos Audio ScopeTime Shot Cont Position and triggering of the DiSEqC signalDiSEqC Scope Saving functionAna Spectral MenuMarker Span MarkMarker dig Marker anaMax off Measurement of digital signals in Sat operationCross-polarisation measurement on signals in SAT operation Zoom markerColour representation of I/Q value pairs Constellation diagram for Qpsk DVB-SMeasurement of the bit error rate BER Const MenuFrontend locked Measurement of signal noise ratio SNRCarrier offset Selecting the code rate Selecting the symbol rate symbol-clockInverting /not inverting a constellation diagram Examples for Qpsk constellation diagrams Measurement of modulation error rate MER Constellation diagram for QAM DVB-CZoom Inverting /not inverting constellation diagramExamples for QAM constellation diagram Const Menu Carrier mode Constellation diagram DVB-T optionalMeasurement of bit error rate BER Measurement of signal noise ration SNRHierarchy Code rate Guard Invers Frontend locked Channel display Impulse response representation Echo representation optional Measuring principle Broadband Cable Analysis Measuring System MSKTrack MVG10 RGB MSK33 Upstream measurementDownstream measurement MSK33 MVG10Cable system With return path capable amplifiers Display of the check point Auto MeasureConnection cable for modem / RS InterfacesModem / RS 232 interface Modem/RS232 menu Setting baud rateSetting local echo Setting hardware handshakeLog-in procedure Code PasswordTTY mode Ansi modeRequesting help Example for logging-in in Ansi modeInterfaces List of the command abbreviations LDU Loading and saving predefined settingsSTU STU RETMaintenance, Storage and Customer Service Ribbon exchange Printer paper-exchanging the ribbonTechnical Appendix Overview of DiSEqC commandsCommand overview framing byte Command overview address byteReset Reset DiSEqC minicontroller Command overview command byteCommand for Kathrein matrix EXR DiSEqC commands for Kathrein matricesCommand overview data byte Command for Kathrein matrix 9xx-seriesUSB/OSB ESB Channel tablesChannel and frequency table standard B/G frequency in MHz VHF-CCIR UHF-CCIRVHF UHF Channel and frequency table standard Lfrequency in MHzXII Channel and frequency table standard D/K frequency in MHzVII ViiiChannel 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 Power supply Technical DataTechnical data MER SNRQpsk BER Assignment of the Scart socket AccessoriesScope of delivery TXD RXD RTS CTS DSR GND DCD DTR Assignment of RS232 socketAssignment of socket TS Parallel optional Unit variants General notes Downloading New MSK33 Operating Software9986498/0206 ZWT Subject to alterations