Kathrein MSK 33, 9986492 manual Measurement Possibilities, Level measurement, Maximal input level

Page 24

Measurement Possibilities

Level measurement

The MSK 33 is designed for the level measurements on receiving systems in the measuring range of 30 dBµV to 130 dBµV. The level measurement is automati- cally carried out after connecting the unit and setting a frequency and is displayed on the display screen. The table shown below represents a brief overview of the measurement possibilities of the MSK 33.

Measurement possibility

Type of

Menus

operation

 

 

DiSEqC 2.0

SAT

SAT, LNB-CONTROL, DiSEqC

DiSEqC 2.0

TV

TV, TV-CONTROL, DiSEqC

DiSEqC 2.0

FM

RADIO, RADIO-CONTROL

UFOµ

SAT

SAT, LNB-CONTROL, DiSEqC

LNB current draw

SAT

SAT, LNB-CONTROL

Level measurement SAT analogue

SAT

Sat MENU - analogue

Level measurement TV analogue

TV

TV MENU - analogue

Level measurement RADIO ana-

FM

RADIO-MENU

logue

 

 

Level measurement SAT digital

SAT

SAT, digital DVB-S

Level measurement TV digital

TV

TV, digital DVB-C or DVB-T

Min./Max. level measurement

SAT

SAT, SAT MEASURE

Min./Max. level measurement

TV

TV, TV MEASURE

Min./Max. level measurement

FM

RADIO

Current draw of a remotely fed-in unit

TV

TV, TV-CONTROL

Current drain of a remotely fed-in

FM

RADIO, RADIO-CONTROL

unit

 

 

Sound carrier measurement

TV

TV, analogue, TV MEASURE

Nicam bit error measurement

Min./Max. level measurement

 

 

IF level

IF

IF

Maximal input level

The maximal measurable input level of a carrier, which can be measured with the MSK 33, is 130 dBµV. If a system with several carriers or programmes is meas- ured, the maximal total capacity of all carriers determines the admissible input level. The fed-in total capacity on the RF socket of the MSK 33 may not exceed 0.5 W.

The following table serves to approximately determine the maximal total capacity. It only applies, if all the carriers contain the same level. When the carriers are dou- bled, the maximal input level of the MSK 33 is reduced by 3 dB, refer to the table below.

Number of the fed-

Reduction

Maximal input level, if all carriers con-

in carriers

 

tain the same level

4 TV programmes

 

129 dBµV

9 TV programmes

-3 dB

126 dBµV

18 TV programmes

-6 dB

123 dBµV

36 TV programmes

-9 dB

120 dBµV

Exceeding the maximal input level may damage the input stages or the unit! Intermodulation and overcontrol effects can occur for each maximal admis- sible assignment!

24

Image 24
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