Kathrein MSK 125 - Manual

6 SAFETY INSTRUCTIONS This manual was designed for persons with a basic knowledge of electronics. Users who have already worked with similar measuring devices can use a command overview for the necessary commands for each operating step. Additionally, the following examples are designed to provide t...

7 FUNCTIONALITY The MSK 125 is a mobile multi-purpose measuring device intended for analogue TV and Satellite, FM radio and for DVB-C, DVB-S(2) and DVB-T for battery and mains operation. The integrated 6.5 Ah lithium-ion battery and a rechargeable 230 V AC power unit are included in the scope of sup...

8 FUNCTIONALITY Function Operating mode SA T analogue Operating mode TV analogue Operating mode FM analogue Operating mode DVB-S/S2 Operating mode DVB-C Operating mode DVB-T Mains and battery operated ****** Level measurement by means of frequency input ****** Level measurement by means of channel i...

9 OPERATING AND DISPLAY ELEMENTS Measured values and settings are shown on the LC display. LC DISPLAY Based on operating mode and function the LC display displays• the set channel,• the set frequency,• the called function,• the operating mode,• the measured level, and• the measured values. TFT COLOU...

11 OVERVIEW OF KEYPAD COMMANDS Button Brief description of the function Switching the device on/off Sources Selection of SAT operation and switch between analogue and digital SAT Selection of cable TV operation and switch between analogue cable TV and digital cable TV Selection of terrestrial TV ope...

12 OPERATING AND DISPLAY ELEMENTS Cursor block Reduce current values (frequency, channel, etc.) Increase current values (frequency, channel, etc.) Selection up Selection down Con fi rm input or selection Reduce volume Increase volume SD card memory management Store measurement device settings and me...

13 CONNECTIONS FRONT VIEW RF input USB port SD memory card Common Interface SCART (audio/video) SIDE VIEW Fan Ear phones RS 232 Loudspeakers Battery fuse DC supply

14 CONNECTIONS RF INPUT SOCKET Here the reception signal is delivered from the antenna system or cable network (coaxial F socket with BNC adapter).The remote feeding voltage can be adjusted from 5 V DC to 20 V DC and can also be switched off. When the LNB voltage is switched on the right control LED...

15 GETTING STARTED SWITCH ON When you position the device please ensure that there is suffi cient ventilation. To avoid overheating, the openings for the fan and the ventilation holes must be clear at all times. • Connect the device with the charger/power unit and to the mains. • Con fi rm the butto...

16 GETTING STARTED In the next menu press the or button to de fi ne the measurement unit the level is to be indicated. Press to keep the current setting. The next menu prompts you to set the mute function using the or button. If you select ON, the MSK 125 is switched to silent as long as the incomin...

17 GETTING STARTED BATTERY OPERATION Before operating the device for the fi rst time remove the T 8.0 A fuse from the packaging and place it in the fuse holder.This fuse prevents the device from being switched on accidentally during transportation. After the fuse has been inserted the charging statu...

18 SAT ANALOGUE SATELLITE RECEPTION In SAT mode the MSK 125 can be adjusted to “Analogue” and “DVB S(2)” reception types. SAT ANALOGUE/DVB-S(2) SWITCH Press once = SAT analogue Press again = DVB-S(2) Press again = SAT analogue again FREQUENCY DISPLAY AND ENTRY To measure the level of a reception sig...

19 SAT LNB VOLTAGE AND 22 KHZ CHANGE-OVER The LNB supply voltage is available at the RF socket. To turn on or change the LNB voltage, press the button. The LNB voltage• can be switched off = 0V• can be adjusted from 5 V to 20 V in 0.1 V intervals• is short-circuit proof (max. amperage 600 mA from 5 ...

20 “SAT ANALOGUE” LEVEL MEASUREMENT After you have set a frequency the level is measured automatically and indicated on the LC display in dBµV or dBmV (depending on the basic con fi guration). The input level can be measured in the range of 30 dBµV to 120 dBµV (-30 dBmV to 60 dBmV). LC display:• Fre...

22 Example Switching on the 22 kHz signal Press the button LC display:• LNB voltage: 14 V• Current consumption: 150 mA• 22 kHz signal switched on Press the button again to switch off the 22 kHz signal. Press to exit the LNB menu. Note SAT FREQUENCY DISPLAY AND ENTRY To measure the level of a recepti...

24 SAT Command overview for LNB voltage Call the LNB menu ... Select LNB voltage or Change LNB voltage in 0.1 V intervals 22 kHz signal on/off Exit the LNB menu Example Calling up 14 V LNB voltage: Press the buttons LC display:• LNB voltage: 14 V• Current consumption: 150 mA By pressing the or butto...

25 “SAT DVB-S(2)” LEVEL MEASUREMENT LC display during DVB-S(2) level measurement:For how to switch from analogue to digital level measurement please see “SAT analogue” / “DVB-S(2) switch”.• Frequency: 1236.0 MHz• Operating mode: SAT digital• Measured level: 86.5 dBµV (D = digital) SAT SETTING DVB-S(...

26 SAT COMMAND OVERVIEW FOR DISEQC TM If a DiSEqC TM matrix is activated via DiSEqC TM command, it must fi rst be ensured that the analogue LNB control voltage is set to the correct Satellite frequency plane. I.e. if a vertical satellite frequency plane is required, it is essential to set the analog...

28 COMMAND OVERVIEW FOR ADDRESS BYTE Hex Byte Description 00 All devices 10 Every LNB, matrix or SMATV 11 LNB 12 LNB with loop-through 14 Matrix (switcher) 15 Matrix (switcher) with loop-through 18 SMATV 20 Every polarizer 21 Maximum turn (full skew) in linear polarisation 22 Stepwise polarizer adju...

29 SAT COMMAND OVERVIEW FOR COMMAND BYTE The MSK 125 can send commands based on DiSEqC TM 1.0 but cannot receive them. All commands requiring DiSEqC TM 2.0 (send and receive) are greyed out in the table. Commands in bold letters are preferred for Kathrein switching matrices. Hex Byte Command ID Desc...

30 SAT 39 Write N1 Set port group 1 1 3A Write N2 Expansion option 1 3B Write N3 Expansion option 1 40 Read A0 Read analogue value A0 - 41 Read A1 Read analogue value A1 - 48 Write A0 Set analogue value A0 1 49 Write A1 Set analogue value A1 1 4F Write A7 Set analogue value A7 1 50 LO string Read cu...

31 SAT SIMPLE DISEQC TM , TONE BURST The Simple Tone Burst DiSEqC TM procedure is a simpli fi ed form of the DiSEqC TM control. In this Simple DiSEqC TM two switch status are possible: Tone Burst and Data Burst. COMMAND OVERVIEW FOR “SIMPLE DISEQC TM ” Call DiSEqC TM menu Call up Simple-DiSEqC TM me...

32 SAT DVB-S(2) MER, BER AND OFFSET MEASUREMENT The modulation error rate (MER), the bit error rate (BER) and the carrier frequency offset (LNB offset) can be measured to rate the digital reception quality. Note: In this case MER shown on the display has the same meaning as SNR (signal radio ratio)....

33 SAT LOCATING SATELLITES The function allows you to search for satellites whose transponder frequencies are unknown. The frequency range from 1000 to 2100 MHz is continuously scanned for reception signals. If a reception signal is detected, the reception level is indicated in the display in the fo...

34 SAT FINDING INDIVIDUAL RECEPTION FREQUENCIES The function allows you to adjust the antenna to the maximum reception signal. The display indicates the reception in the form of an increasing or decreasing bar. The buttons allow you to set the measurement range to three sensitivity levels.The bearin...

35 TV MEASUREMENT ANALOGUE TV CABLE RECEPTION In CABLE mode the MSK 125 can be set to the “Analogue” and “DVB-C” reception types. ANALOGUE CABLE/DVB C SWITCH Press once = Analogue cable TV Press again = DVB-C Press again = Back to analogue cable TV HF STANDARD SWITCH - ANALOGUE CABLE (DEMOD MENU) In...

36 CHANNEL DISPLAY AND ENTRY To measure the level of a reception signal, you must fi rst enter the desired channel.The following channels can be set:• Band I/III CH 01 to CH 12 in 7 MHz raster • Band IV/V CH 21 to CH 69 in 8 MHz raster • Special channel S 01 to S 20 in 7 MHz raster • Special channel...

37 COMMAND OVERVIEW FOR TV FREQUENCY ENTRY Switch to desired TV reception Channel/frequency switch ... Enter frequency Con fi rm entry and Change frequency in intervals or Example To enter the frequency 175.25 MHz: Press (calling up the frequency menu) Then (frequency entry) LC display:• Frequency: ...

38 TV MEASUREMENT Note LEVEL OVERFLOW AND UNDERFLOW At a level < 30 dBµV the LC display indicates an under fl ow. LC display:• Channel: CH 05• Operating mode: Analogue cable TV• Level: under fl ow At a level > 120 dBµV the LC display indicates an over fl ow. LC display:• Channel: CH 05• Operat...

40 DIGITAL TV CABLE RECEPTION In CABLE mode the MSK 125 can be set to the “Analogue” and “DVB-C” reception types. ANALOGUE CABLE/DVB C SWITCH Press once = Analogue cable TV Press again = DVB-C Press again = Back to analogue cable TV HF STANDARD SWITCH - ANALOGUE CABLE (DEMOD MENU) In TV mode the MSK...

42 COMMAND OVERVIEW FOR TV FREQUENCY ENTRY Switch to desired TV reception Channel/frequency switch ... Enter frequency Con fi rm entry and Change frequency in intervals or Example To enter the frequency 175.25 MHz: Press (calling up the frequency menu) Then (frequency entry) LC display:• Frequency: ...

44 TV MEASUREMENT MPEG IMAGE REPRESENTATION IN DVB-C If you select DVB measurement by pressing , the TFT screen displays the list of programmes that can be received on the digital transport stream. Use the or key to select the desired programme and con fi rm your selection by pressing . To select th...

45 HF STANDARD SWITCH - TERRESTRIAL Call up the standard switch menu. ... Select standard After that the DEMOD menu is exited automatically. Press or to exit the DEMOD menu without any changes. ANALOGUE TERRESTRIAL TV RECEPTION In TERR mode the MSK 125 can be set to the “Analogue” and “DVB-T/H” rece...

48 HF STANDARD SWITCH - TERRESTRIAL Call up the standard switch menu. ... Select standard After that the Demod menu is exited automatically. Press or to exit the Demod menu without any changes. DIGITAL TERRESTRIAL TV RECEPTION In TERR mode the MSK 125 can be set to the “Analogue” and “DVB-T/H” recep...

51 TV MEASUREMENT LC display for DVB-C signals: • MER modulation error rate: 32.0 dB• Modulation = 64 QAM• BER bit error rate: 6.4e-8• Standard = DVB-C• Carrier frequency offset: -0.10 MHz LC display for DVB-T signals: • MER modulation error rate: 24.8 dB• Modulation = 16 QAM• CBER bit error rate: 6...

53 NICAM AUDIO BIT ERROR RATE MEASUREMENT For better evaluation of the Nicam signal audio quality the bit error rate (BER) can be measured. Example To call bit error rate measurement: Press the button Press the button If the quality of the DVB signal is so good that no bit error can be detected, BER...

54 FM MEASUREMENT FM SWITCH Press the button. FREQUENCY DISPLAY AND ENTRY To measure the level of an FM signal, you must fi rst enter the desired frequency.The frequency can be entered from 47 MHz to 862 MHz in 50 kHz intervals. COMMAND OVERVIEW FOR FM FREQUENCY ENTRY Switch to FM reception ... Ente...

55 FM MEASUREMENT LEVEL OVERFLOW AND UNDERFLOW At a level < 30 dBµV the display indicates an under fl ow. LC display:• Frequency: 104.8 MHz• Operating mode: FM• Level: under fl ow At a level > 120 dBµV the LC display indicates an over fl ow. LC display:• Frequency: 104.8 MHz• Operating mode: T...

56 SPECTRUM MEASUREMENT For evaluation of a receiver the frequency spectrum in the “Satellite”, “Cable”, “Terrestrial” and “FM” modes can be displayed on the screen.Spectrum measurement is launched from the individual modes (Sat, Cab;e, Terr, or FM). Command for spectrum measurement . Exit the measu...

58 SPECTRUM MEASUREMENT NARROW (197 ... 222 MHz) ANALOGUE NARROW (381 ... 406 MHz) DIGITAL FM SPECTRUM Select and measure the “FM spectrum” as described above. It reaches from 87 ... 108 MHz. The displayed centre frequency is the previously set reception channel. The displayed centre frequency is th...

59 STORING DEVICE SETTINGS STORING DEVICE SETTINGS First select the measuring job! Indicates the stored settings on the TFT display and opens the entry fi eld to de fi ne a storage place on the LC display. Use the Up and Down buttons to go a page up or down in the screen content. ... From 00 to 99 e...

60 STORING MEASUREMENT RESULTS STORING MEASUREMENT RESULTS IN THE DEVICE MEMORY First select the measuring job and perform the measurement! The Memory Explorer command displays the stored measuring results on the TFT display. Use the Up and Down buttons to go a page up or down in the screen content....

61 STORING MEASUREMENT RESULTS TFT display DELETING MEASUREMENT RESULTS FROM THE DEVICE MEMORY The Memory Explorer command displays the stored measuring results on the TFT display. Indicates the stored settings on the TFT display and opens the entry fi eld of the storage place where the measurement ...

63 DATA LOGGER The Data Logger setting allows you to execute the stored measurement device settings in a row and store the corresponding measurement results.For automatic measuring the stored device settings are used. Up to 100 (00 ... 99) different measurement series can be stored. Before using the...

64 ... Use the button and the two-digit setting storage number to select the stop line where automatic measuring is to stop. ENTERING THE STOP LINE FOR AUTOMATIC MEASURING RECOVERING MEASUREMENT RESULTS FROM THE DEVICE MEMORY The Memory Explorer command displays the stored measuring results on the T...

65 STORING THE DATA LOGGER MEASUREMENT RESULTS ON THE SD CARD DATA LOGGER See: Storing measurement results on the SD card. Example Call up Data Logger Select start line Select stop line Start automeasure After completion of the process: Launch measured value storage Get fi rst measurement result fro...

66 MAINTENANCE The device maintenance is basically limited to outside cleaning. DEVICE CALIBRATION The caliber interval depends on the use and load and should be between one and two years. Calibration can be done by Kathrein customer service. For address see next page. OUTSIDE CLEANING For outside c...

67 CUSTOMER SERVICE For service or to order replacement parts please contact: ESC GmbHBahnhofstraße 10883224 Grassau, Germany Tel.: +49 8641 9545-0Fax: +49 8641 9545-35 E-mail: [email protected] www.esc-kathrein.de TECHNICAL CUSTOMER SUPPORT If, despite studying this operating manual, you stil...

68 FEATURES • Level measurement of analogue and digital TV signals (TV, Sat, FM, DVB-S(2), DVB-C, DVB-T, DVB-H (2k, 8k mode)) • Image representation of analogue and digital TV signals• BER/MER measurement and display• 5.7“-TFT colour display, trans fl ective (640 x 480 pixels) • Two-line 22-characte...

69 TECHNICAL DATA Type MSK 125 Order no. 21710022 RF component Frequency range MHz Sat: 920 ... 2150, TV: 47 ... 862, FM: 87 ... 108 Frequency tuning (steps) kHz Sat: 100 , TV/FM: 50 TV standards (channel raster) MHz Standard: B, 7 Standard: D/G/I/K, 8 DVB standards DVB-S(2): QPSK, 8PSK DVB-C: 64 QA...

71 TECHNICAL APPENDIX SIGNAL-TO-NOISE RATIO To determine the carrier-to-noise-ratio (C/N) for analogue transponders, the following values must be known:• Ambient noise level (adjust parabolic antenna so that no satellite signal is received) • max. reception signal• Bandwidth correction The following...

72 TECHNICAL APPENDIX DISEQC TM COMMANDS FOR KATHREIN MATRICES COMMAND SET FOR KATHREIN MATRICES Range POS. A (satellite 1)Low band High band Vert. Horiz. Vert. Horiz. DiSeqC TM command E0 00 38 F0 E0 00 38 F2 E0 00 38 F1 E0 00 38 F3 Range POS. B (satellite 2)Low band High band Vert. Horiz. Vert. Ho...

73 TECHNICAL APPENDIX CHANNEL TABLES CHANNEL UND FREQUENCY TABLE, STANDARD B/G (FREQUENCY IN MHZ) VHF-CCIR UHF-CCIR UHF-CCIR Pilot frequencyE2E3E4E5E6E7E8E9E10E11E12ABSDEFGH 0102030405060708091011121314151617181920 80.1548.2555.2562.25175.25182.25189.25196.25203.25210.25217.25224.2553.7562.2582.2517...

77 CALCULATION OF SAT IF FREQUENCY USING THE MSK 125 This is done as follows: IF = reception frequency - oscillation frequency The oscillation frequency is made up as follows: 9750 MHz oscillator frequency is used for a reception frequency between 10700 MHz and 11700 MHz.10600 MHz is used for a rece...