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Const Menu

Examples for QAM constellation diagram

The following examples show possible errors and their representation in the constellation diagram.

64 QAM signal without faults

64 QAM signal with intermodulation of narrow
band noise

64 QAM signal with low broadband noise.

64 QAM signal with strong broadband

Possible cause: Bad amplifier or to small of

noise. Possible cause: cable loss is to high

input level on an amplifier in the

or amplifier has a defect.

transmission line.

Содержание 9986492

Страница 1: ...Operating manual Sat TV FM Test Receiver MSK 33 Software version 8 3 December 2002...

Страница 2: ...2...

Страница 3: ...mplete We reserve the right to make changes to this manual without prior notice This par ticularly applies to modifications required for technical improvement We appreciate your recommendations and im...

Страница 4: ...YS OPERATING ELEMENTS AND CONNECTIONS 16 Front panel 16 Rear panel 17 Observing angle of the on screen display 18 OPERATING CONCEPT 19 The screen 19 Frequently recurring softkeys 19 General informatio...

Страница 5: ...ntrol signal 28 14 V LNB supply voltage 28 18 V LNB supply voltage 28 LNB current draw 28 Checking the LNB supply voltage of a satellite receiver 29 Calling up the DiSEqC V SEC menu 29 DiSEqC menu 30...

Страница 6: ...rate entry 41 MPEG decoder menu OPTION 41 Level measurement DIGITAL Min Max levels 42 TV OPERATION 43 TV menu 43 Frequency entry of 44 75 867 2 MHz DVB T BIII UHF 43 Mid channel display 43 Entering in...

Страница 7: ...f the Nicam audio carrier spacing and the bit error rate 51 Measurement of the min max level 51 Selecting the colour standards PAL SECAM and NTSC 51 IF RP DIGITAL MENU 52 DVB C 52 Level dependent acou...

Страница 8: ...Printing out all measurements in TV mode 62 Printing out all measurements in Sat mode 62 MODE MENU 63 TEXT MENU 64 Holding the videotext page 64 Enlarging the videotext page 64 Original videotext size...

Страница 9: ...g a constellation diagram 74 Examples for QPSK constellation diagrams 75 Constellation diagram for QAM DVB C 76 Measurement of the bit error rate BER 76 Measurement of modulation error rate MER 76 Car...

Страница 10: ...INTENANCE STORAGE AND CUSTOMER SERVICE 96 Maintenance 96 Unit calibration 96 Exterior cleaning 96 Interior cleaning 96 Function testing 96 Exchange of components 96 Storage 96 Customer service 96 Prin...

Страница 11: ...rd M N frequency in MHz 106 Special channels 106 TECHNICAL DATA 107 Technical data 107 Scope of delivery 109 Accessories 109 Assignment of the SCART socket 109 Assignment of RS232 socket 110 Assignmen...

Страница 12: ...obligation of care is applied Explanation of symbols In the following operating instructions the following symbols are used These symbols are intended to make the user aware of the text located next t...

Страница 13: ...d cables are used There is a danger to life during mains operation when the unit is improperly tampered with Connections Faulty wiring can lead to operating disturbance or defects Proper use The opera...

Страница 14: ...s for peak average maximal and minimal values are avail able for the level measurement of analogue and digital signals Correction values are determined by the level calibration of the MSK 33 and store...

Страница 15: ...ntrol X X X X X X X Multi standard B G D K I L M M jap X X Audio carrier setting X X X Audio carrier measure ment X X Nicam audio reception and bit error rate meas urement X X Min Max level meas ureme...

Страница 16: ...en you switch off the MSK 33 by pressing this button the last unit setting is saved When the unit is switched on again the unit remains in the last used type of operation Hold the button down for ca 4...

Страница 17: ...Loudspeaker 5 DC socket Option XLR socket for the operation of an external DC voltage of 10 8 14 V and for charging the accumulator 6 Scart socket 7 Headphone connection 3 5 mm jack plug for stereo h...

Страница 18: ...ay is chosen so that a picture assessment is seen from an angle of up to 15 from the top and up to 30 from below The observing angle from the side is 45 Side view MSK 33 MSK 33 front viel The angle of...

Страница 19: ...screen displays can be switched off for observation of the entire screen by pressing OSD help button Frequently recurring softkeys With this softkey you always return to the previous menu Level depen...

Страница 20: ...nd displayed Softkeys with the arrows v or 34 indicate operation with the cursor buttons Softkeys with large type lead you to a new menu The main menu In the main menu the following submenus can be ca...

Страница 21: ...supply is connected the green LED lights up on the front panel of the unit and the internal accumulator is charged On Off switch With the On Off button on the front panel of the unit the MSK 33 can be...

Страница 22: ...he unit should be connected to the mains during longer pauses of operation con servation of the battery Improper handling of the accumulator can damage the unit and result in total breakdown The loadi...

Страница 23: ...tion In order to better assess the sound quality a connection of stereo headphones to the 3 5 mm jack socket rear panel position 7 is possible The MSK 33 provides a stereo signal in Sat and TV operati...

Страница 24: ...nt FM RADIO Current draw of a remotely fed in unit TV TV TV CONTROL Current drain of a remotely fed in unit FM RADIO RADIO CONTROL Sound carrier measurement Nicam bit error measurement Min Max level m...

Страница 25: ...e LO frequency is made in the menu LNB CONTROL The entry of the Sat IF is only possible if the LO fre quency LO 0 00000 has been set If the oscillator frequency LO 0 to LO 9 is set and the resulting r...

Страница 26: ...n in the Sat menu With the button LO you can request nine preset LO frequencies Set LO1 09750 in the field With the BACK button open the Sat menu again Entering the transponder frequency Press the but...

Страница 27: ...an acoustic signal The frequency of the acoustic signal varies in proportion with the receiving signal level The volume of the acous tic signal can be changed The screen shows the bargraph display whi...

Страница 28: ...voltage can be changed in the range of 10 20 V with the buttons 1 9 or with the cursor buttons For nu merical entry the entry must be completed with Enter By pressing the button once more the LNB sup...

Страница 29: ...N You can now read the output voltage on the screen Calling up the DiSEqC V SEC menu In this menu all the DiSEqC V SEC control possibilities can be set refer to section DiSEqC V SEC menu In case the M...

Страница 30: ...appears in the RC display field Transmitting and receiving a DiSEqC command TX RX The set DiSEqC com mand in the TV display field is transmitted after pressing this button Afterwards the MSK 33 switch...

Страница 31: ...he appropriate hex codes Press the ENTER button to exit the menu Refer to the technical appendix of this operating manual for an overview of the DiSEqC commands TX display field In the TX display the...

Страница 32: ...the nu merical buttons The figure shows how the menu should now look like Press ENTER to return to the DiSEqC menu The given DiSEqC command is transmit ted by pressing the button tx Simple DiSEqC By r...

Страница 33: ...allocated from the head station or in conjunction with the spectrum representation in the spectrum menu 5 Antenna socket testing testing the disconnection function Display fields RX field In this fiel...

Страница 34: ...up to 20 sec onds A maximum of 5 events RX0 RX4 with respectively up to 6 bytes Frame Add Com Dat1 Dat2 Dat3 can be recorded between the head end and the available satellite receivers During the recor...

Страница 35: ...urther receivers with the MSK 33 beginning with 01 4 Bring the MSK into the position V call addr Virging Cal For Address with the aid of the Command button and send it to the head station by pressing...

Страница 36: ...a data item It gives no reply Entering the hex numbers Call up a submenu by entering in the hex numbers This hex number can be set with the numerical button field 0 to 9 or with the softkey A to F Se...

Страница 37: ...evel This measurement function serves for monitoring the check points for level fluctuations Even after exiting the menu the MSK 33 stays set on ANA LOGUE reception The following display appears on th...

Страница 38: ...ards PAL SECAM and NTSC Selecting the video hub 16 MHz for ASTRA reception 25 MHz for EutelSat reception Video polarity Switch over of the video polarity between positive and negative A stands for pos...

Страница 39: ...frequency spacing between the two audio carriers is always 180 kHz The selected audio signal always lies on the Scart and headphone socket Audio carrier frequency Display of the set audio carriers Th...

Страница 40: ...sec next subc 4 7 02 MHz 75 sec next subc 5 7 20 MHz 75 sec next subc 6 7 38 MHz 75 sec next subc 7 7 56 MHz 75 sec next subc 8 7 74 MHz 75 sec next subc 9 7 92 MHz 75 sec next subc 10 8 10 MHz 75 se...

Страница 41: ...n four preset symbol rates for correct level measurement of digital signals in SAT mode 22 000 27 500 20 000 and 27 500 It also possible to change the preset symbol rates by numerical entry In the SAT...

Страница 42: ...screen Display of the minimal level 78 0 dB V and the maximal level 82 5 dB V Display of the Sat frequency the level and note to digital reception D As long as this measurement function is called up...

Страница 43: ...as the softkey is pressed The channel can be entered with two digits with the numerical buttons 0 9 or changed with the cur sor buttons A large C appears in front of the channel display when a channe...

Страница 44: ...ly voltage is disconnected again Remote supply voltage See above The remote supply voltage is disconnectable 0V changeable from 10 20 V in 0 1 V increments short circuit proof max current 500 mA This...

Страница 45: ...5 85 MHz D K 6 50 MHz 6 26 MHz sc 1 6 50 MHz sc 2 6 26 MHz 5 85 MHz I 6 00 MHz 6 552 MHz M 4 50 MHz 4 72 MHz sc 1 4 50 MHz sc 2 4 72 MHz M Japan 4 50 MHz N 4 50 MHz Selecting the audio carriers By pr...

Страница 46: ...n this function the MSK 33 measures the minimal and the maximal level test points can follow to level fluctuations Measuring the current level The following values are displayed in the display Channel...

Страница 47: ...M64 QAM128 or DOCSIS QAM64 Softkey designation DOC64 Mode is selected The setting is taken over for the constellation analysis Symbol rate entry For correct level measurement of digital signals you ca...

Страница 48: ...ent of digital signals you can choose between 3 chan nel bandwidths 6 7 and 8 MHz This programming is taken over for the constella tion analysis For correct level measurement of the signals the correc...

Страница 49: ...rrier for digital modulation the I and Q vectors can be exchanged ANALOG Menu Access the analogue menu with the buttons analog and RP MEAS URE In this menu settings and measurements of analogue signal...

Страница 50: ...carrier1 sc1 Audio carrier2 sc2 Stereo sc1 sc2 NICAM nicam B G 38 9 MHz 5 50 MHz 5 74 MHz sc1 5 50 MHz sc2 5 74 MHz 5 85 MHz L 32 7 MHz 38 9 MHz 39 2 MHz 6 50 MHz AM 6 50 MHz 5 85 MHz 5 85 MHz D K 37...

Страница 51: ...al level 77 5 dB V Maximal level 82 5 dB V In this function the MSK 33 measures the minimal and the maximal level so the check points can be tracked for level fluctuations As long as this measurement...

Страница 52: ...is Entering symbol rate For correct level measurement of digital signals you can choose between 4 preset symbol rates In B C mode 6 900 6 111 6 952 d 6 875 It is also possible to change the preset sym...

Страница 53: ...as remote feed voltage 22 kHz DiSEqC tone burst Simple DiSEqC and V SEC can be set ANALOG menu In this menu min max level measurements are possible and the level beep can be activated RADIO ANALOG men...

Страница 54: ...asuring the current level In the display appears Frequency 98 50 MHz Analogue reception A Current level 62 5 dB V As long as this measurement function is called up the MSK 33 measures the minimal leve...

Страница 55: ...g Premiere can be connected to the Scart socket Decoder operation baseband In this operating type a decoder which requires a baseband signal can be con nected to the Scart socket This is only possibl...

Страница 56: ...g the AV menu the last set AV operation type remains The video signal is displayed in the operation type RGB on an external moni tor television set with the displayed softkey fields MPEG transport str...

Страница 57: ...ream Eight pro grammes are available five of them are displayed The programme 00 is decoded and the picture is shown With the arrow softkeys the desired programme can be selected Here the video and au...

Страница 58: ...TFT screen are set SYSTEM menu In this menu date and time as well as the software version and the unit number are given out Measuring unit Softkey for the switch over of dB V to dBmV and vice versa En...

Страница 59: ...with the cursor but tons The set value is automatically saved Setting the colour saturation Pressing this button allows the colour saturation to be set with the cursor buttons The set value is automa...

Страница 60: ...TE lights up yellow and the date field flashes The date can now be entered in with the numerical buttons Setting the time After pressing this softkey the field TIME lights up yellow and the time field...

Страница 61: ...TV Special channel digital 4 S A 1597 00M SAT analogue 5 S D 1990 00M SAT digital 6 R A 98 00M Radio analogue You can scroll down the setting list by using the cursor buttons Calling up saved setting...

Страница 62: ...ts in TV mode The printout contains the following measurement results Date and time Audio carrier spacing TT1 13 dB Audio carrier spacing TT2 not available Audio carrier spacing NICAM 20 dB Bit error...

Страница 63: ...r option refer to appropriate section Calls up the constellation menu option refer to the appropriate menu Calls up the TEXT menu refer to the appropriate section Calls up the SCOPE menu option refer...

Страница 64: ...again the videotext page is released Enlarging the videotext page By pressing the button the upper or lower area of the text page can be enlarged Original videotext size By pressing this button the f...

Страница 65: ...g this button the video signal can be reduced on the screen Eight zoom stages are available Each time the button is pressed the zoom switches to the next lower stage If the field no longer lights up y...

Страница 66: ...ed in 200 mV steps a secon dary graduation line The position of the video signal can be changed with the cursor buttons Selecting the video line The video line can be selected with the numerical butto...

Страница 67: ...audio signal With the cursor buttons the vertical position of audio signal can be changed The trigger point which lies at 0 V is set or changed with this button Measuring the FM hub The FM hub of the...

Страница 68: ...o longer changes col our the lowest stage is reached Saving function By pressing this button the saving oscilloscope is set to standby As soon as a DiSEqC signal is on the antenna socket of the MSK 33...

Страница 69: ...evel of white marker 64 0 dB V Delta level C M 11 5dB Level measurement of analogue signals By calling up the spectrum analysis from the analogue TV or Sat menu the ana logue level on the white marker...

Страница 70: ...the lower margin of the screen For the establishment of digital levels the MSK 33 calculates a correction value which is represented by a thin line under he yellow marker This value is influ enced by...

Страница 71: ...ponder of the other polarisation planes is recognised as a small knob between the two transponders for a poor aligned LNB Place the yellow marker on this knob The display C M represents the cross pola...

Страница 72: ...colour representation of the MSK 33 allows the frequency of the hits of a I Q value pair on the surface of a pixel to be described by the changing of colour If many I Q value pairs meet on a pixel RED...

Страница 73: ...offset The carrier offset display represents the difference between the set receiving fre quency on the MSK 33 and the transmitting frequency of the digital signal in MHz The carrier offset is displa...

Страница 74: ...clock 27 5 MS 20 MS 24 5 MS or 22 MS or entry between 0 5 32 MS Selecting the code rate 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 Inverting not inverting a constellation diagram Display the status of the frequ...

Страница 75: ...grams QPSK signal without faults QPSK signal with phase noise LNC QPSK signal with intermodulation noise QPSK signal with superposed broadband noise Possible cause Defective amplifier or high cable lo...

Страница 76: ...rror in the data stream In the MSK 33 a BER measurement is carried out before the error correction and displayed on the screen The bit error rate is the ratio of the number of received defective bits...

Страница 77: ...e displayed Selecting the symbol rate symbol clock By pressing this button you can select between the symbol rates 6 900 MS 6 111 MS 6 952 MS or 6 875 MS With the numerical buttons entry between 0 5 a...

Страница 78: ...tion diagram 64 QAM signal without faults 64 QAM signal with intermodulation of narrow band noise 64 QAM signal with low broadband noise 64 QAM signal with strong broadband Possible cause Bad amplifie...

Страница 79: ...phase noise of a 64 QAM signal with amplitude hum converter of an amplifier 64 QAM signal with I Q phase error of 64 QAM signal with signal I Q amplitude error a converter of the converter Unsynchron...

Страница 80: ...SK 33 can measure is 1 0 e 8 If the measured value is below this value the display of BER skipped to zero 0 no bit error available The highest displayed BER is 1 e 2 Generally it can be assumed that t...

Страница 81: ...t hierarchy modulated Hierarchy 1 means that the signal is hierarchically modulated Two transport streams are simultaneously transmitted one has higher priority in QPSK Hierarchy 2 menus that the sign...

Страница 82: ...e cursor buttons the channel can be changed The reception level can be displayed in the DVB T CONST menu The channel bandwidth can be selected between 6 MHz 7 MHz and 8 MHz Selection of the representa...

Страница 83: ...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...

Страница 84: ...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...

Страница 85: ...is moved up or down Refer to the respective chapter Spectrum Analysis By pressing this button the represented frequency range can be de fined per scale part Refer to the respective chapter Spectrum An...

Страница 86: ...command Clear clears the spectrum representation on the MSK 33 1 Downstream measurement With the command Fkt A 1 from the MVG 10 1 the MVG 10 2 s switched over via the MSK 33 1 from the signal generat...

Страница 87: ...asurement arrangement you must change the SCART cable between MSK 33 1 and MVG 10 2 as follows Separate the cable from Pin 20 Video in on the SCART cable plug which is connected with the MSK 33 Connec...

Страница 88: ...s automatically increased by 1 With set point you open the numerical entry of the check point via the numerical keypad Display of the entry field for the respective measurement task list 5 Measurement...

Страница 89: ...e below it is sufficient to use a zero modem cable in which only the TVD wire and the RXD wire are crossed However the operating software of the MSK 33 works faster if the handshake operation is activ...

Страница 90: ...handshake can be activated or deac tivated If the handshake operation is deactivated it is not possible for the MSK 33 to recognise when a connected PC or modem has taken over the operation In this c...

Страница 91: ...via a serial interface or a modem This means the command abbreviations are entered in via the keyboard interpreted by the MSK 33 and the command is appropriately executed MSK 33 confirms the executio...

Страница 92: ...as default and must only be added for a difference Example FRE 10 7 G means 10700 MHz FRE 10 7 however 10 7 MHz It is sufficient to type in the first letters of the unit In ANSI mode context sensitive...

Страница 93: ...spective terminal programme The picture of the left shows an example of a pulldown menu On the left of the picture there is a frame for entering parameter afflicted commands which repre sents a summar...

Страница 94: ...MHz are set as default FRE 10 7 G RET 10700 MHz are set as default Note The comma position must be entered in as a point CHA Enter in the channel of the desired transmitter only in TV mode Entry Actio...

Страница 95: ...ked for the programme position under which the unit set ting should be saved STU 34 RET Current setting is saved on the programme position 34 LDU Loading the setting by the identified programme positi...

Страница 96: ...ng interval depends on the amount of dust of the operating space The housing cover is removed for cleaning the interior of the unit The dust can be removed with the brush or with compressed air Functi...

Страница 97: ...metal than press down the button LF linefeed in the COPY menu until the beginning of the paper appears on the top side of the printer Now attach the paper roll with the axle into the paper container...

Страница 98: ...is detected E7 Answer from slave commando not recognised Command overview address byte Hex byte Description 00 All units 10 Each LNB Matrix or SMATV 11 LNB 12 LNB with loop through 14 Matrix Switcher...

Страница 99: ...Calls up matrix S3 input A input B inactive 2 B Set S4A Calls up matrix S4 input A input B inactive 2C Set S1B Calls up matrix S1 input B input A inactive 2D Set S2B Calls up matrix S2 input B input A...

Страница 100: ...87 V Lo F8 88 V Hi F9 89 H Lo FA 90 3 H Hi FB 91 V Lo FC 92 V Hi FD 93 H Lo FE 94 4 H Hi FF 95 DiSEqC commands for Kathrein matrices These commands are stored under the recall addresses 80 95 at the...

Страница 101: ...16 175 25 36 C36 591 25 61 C61 791 25 E C17 183 75 37 C37 599 25 62 C62 799 25 F C18 192 25 38 C38 607 25 63 C63 807 25 G C19 201 25 39 C39 615 25 64 C64 815 25 H C20 210 25 40 C40 623 25 65 C65 823 2...

Страница 102: ...25 35 C35 583 25 60 C60 783 25 K16 C16 191 25 36 C36 591 25 61 C61 791 25 K17 C17 199 25 37 C37 599 25 62 C62 799 25 K18 C18 207 25 38 C38 607 25 63 C63 807 25 K19 C19 215 25 39 C39 615 25 64 C64 815...

Страница 103: ...25 60 C60 783 25 C16 75 00 36 C36 591 25 61 C61 791 25 C17 80 00 37 C37 599 25 62 C62 799 25 C18 90 00 38 C38 607 25 63 C63 807 25 C19 175 00 39 C39 615 25 64 C64 815 25 C20 200 00 40 C40 623 25 65 C6...

Страница 104: ...3 25 C16 70 00 36 C36 591 25 61 C61 791 25 C17 75 00 37 C37 599 25 62 C62 799 25 C18 80 00 38 C38 607 25 63 C63 807 25 C19 90 00 39 C39 615 25 64 C64 815 25 C20 175 00 40 C40 623 25 65 C65 823 25 41 C...

Страница 105: ...10 C193 25 23 C23 525 25 56 C56 723 25 A11 11 C199 25 24 C24 531 25 57 C57 729 25 A12 12 C205 25 25 C25 537 25 58 C58 735 25 A13 13 C211 25 26 C26 543 25 59 C59 741 25 27 C27 549 25 60 C60 747 25 28...

Страница 106: ...217 25 65 S57 469 25 K 24 S16 223 25 66 S58 475 25 L 25 S17 229 25 67 S59 481 25 M 26 S18 235 25 68 S60 487 25 N 27 S19 241 25 69 S61 493 25 O 28 S20 247 25 70 S62 499 25 P 29 S21 253 25 71 S63 505 25...

Страница 107: ...in 50 kHz increments in 50 kHz increments Test error level SAT TV FM RP max 2 dB max 2dB max 2dB Slope TV BT TT 1 5 dB except S41 461 25 MHz 4 dB C70 863 25 MHz 2 5 dB RF input Coaxial socket BNC 75 5...

Страница 108: ...upply voltage SAT 0 10 V 20 V max 500 mA LNB control SAT 22 kHz DiSEqC Simple DiSEqC Tone Burst V SEC UFO DiSEqC SAT analogue measurements LNB current LNB voltage C N S N Cross polarisation 0 500 mA 1...

Страница 109: ...90 Anti dazzle device Order no MVG10 signal generator Order no Assignment of the SCART socket Connection Signal Note 1 Audio right output 2 Audio left input 3 Audio left output 4 Audio earth 5 Blue ea...

Страница 110: ...Technical Data 110 Assignment of RS232 socket Connection Signal Note 1 2 TXD 3 RXD 4 RTS 5 CTS 6 DSR 7 S GND 8 DCD 9 10 11 12 13 14 15 16 17 18 19 20 DTR 21 22 23 24 25...

Страница 111: ...bit 0 lowest value bit DATA BIT 0 A LSB 11 Data item valid DVALID A 12 Package sync PSYNC A 13 Earth GND 14 Clock for data item inverted CL CK B 15 Earth GND 16 Data bit 7 inverted high value bit DAT...

Страница 112: ...o noise ration SNR for QPSK MSK 33 M Integrated graphic card and digital card DVB C S card MPEG demodulator MSK 33 QR MSK 33 MR with return path card All functions of the Q and M version however addit...

Страница 113: ...recognition or ANSI 4 the MSK 33 answers now with the bootloader MSKUL Enter in PIN1 and confirm the entry with RET Standard PIN1 is MSK 33 For switched off handshake the MSK 33 first answers after e...

Страница 114: ...Notice 114 Notice...

Страница 115: ...Notice 115...

Страница 116: ...rnet http www kathrein de KATHREIN Werke KG x Telefon 0 80 31 18 40 x Fax 0 80 31 18 43 06 Anton Kathrein Stra e 1 3 x Postfach 10 04 44 x D 83004 Rosenheim 9986492 E 0605 ZWT Subject to technical cha...

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