Instruction/ maintenance manual of the product MSK 125 Kathrein
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Operating Manual Antenna Measuring System MSK 125.
2 FOREWORD/IMPORT ANT INSTRUCTIONS Dear customer , many thanks for choosing the Kathrein MSK 125 measuring instrument. Please read the following instructions carefully , so as to familiarise yourself with all the new functions before starting to use your instrument.
3 CONTENTS FOREWORD/IMPORT ANT INSTRUCTIONS ................................................................................ 2 CONTENTS ...................................................................................................................
4 CONTENTS ANALOGUE CABLE/DVB C SWITCH ........................................................................................ 35 HF ST ANDARD SWITCH - ANALOGUE CABLE (DEMOD MENU) ..................................................... 35 CHANNEL DISPLA Y AND ENTRY .
5 LEVEL MEASUREMENT ........................................................................................................ 54 LEVEL OVERFLOW AND UNDERFLOW .................................................................................... 55 FINDING INDIVIDUAL RECEPTION FREQUENCIES .
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 the individual operating steps.
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 supply .
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.
9 OPERA TING AND DISPLA Y ELEMENTS Measured values and settings are shown on the LC display . LC DISPLA Y 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.
10 OPERA TING AND DISPLA Y ELEMENTS TFT colour display TV picture/settings Source selection On/off button Indication of operation mode Input block Measurements LC display Measurement results Settings .
11 OVER VIEW OF KEYP AD COMMANDS Button Brief description of the function Switching the device on/off Sources Selection of SA T operation and switch between analogue and digital SA T Selection of cabl.
12 OPERA TING AND DISPLA Y ELEMENTS Cursor block Reduce current values (frequency , channel, etc.) Increase current values (frequency , channel, etc.) Selection up Selection down Con fi rm input or s.
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 illuminates green.
15 GETTING ST ARTED SWITCH ON When you position the device please ensure that there is suf fi cient ventilation. T o 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.
16 GETTING ST ARTED 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 incoming signal on the RF input is below 30 dBµV .
17 GETTING ST ARTED BA TTER Y OPERA TION 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.
18 SA T ANALOGUE SA TELLITE RECEPTION In SA T mode the MSK 125 can be adjusted to “Analogue” and “DVB S(2)” reception types. SA T ANALOGUE/DVB-S(2) SWITCH Press once = SA T analogue Press agai.
19 SA T LNB VOL T AGE AND 22 KHZ CHANGE-OVER The LNB supply voltage is available at the RF socket. T o 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.
20 “SA T 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).
21 SA T BUTTON Frequency in MHz Bandwidth SELECT SOUND CARRIER [1] 5.80 wide Mono [2] 6.50 wide Mono [3] 6.65 wide Mono [4] 7.02 narrow [5] 7.20 narrow [6] 7.38 narrow [7] 7.56 narrow [8] 7.74 narrow [9] 7.92 narrow [0] Stereo (select left channel fi rst) Command overview for SA T audio carrier frequencies Launch the audio carrier menu .
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.
23 Note SA T LC display: • Frequency: 1236.0 MHz • Operating mode: SA T • Level: 86.5 dBµV (D = digital) Complete your frequency entry by pressing the button. The most recent frequency setting remains even after you switch the MSK 125 off if it has been entered with digits and con fi rmed by pressing .
24 SA T 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 button you can change the LNB voltage in 0.
25 “SA T 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 “SA T analogue” / “DVB-S(2) switch”. • Frequency: 1236.0 MHz • Operating mode: SA T digital • Measured level: 86.
26 SA T 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 analogue LNB control voltage to 14 V .
27 or Cursor commands for code words: “Framing”, “Address”, “Command” and “Data” Delete the entire command string to the cursor position Send the selected command string Exit DiSEqC TM menu Example of a user entry: Y ou wish to check the EXR 22 Kathrein matrix.
28 COMMAND OVERVIEW FOR ADDRESS BYTE Hex Byte Description 00 All devices 10 Every LNB, matrix or SMA TV 1 1 LNB 12 LNB with loop-through 14 Matrix (switcher) 15 Matrix (switcher) with loop-through 18 .
29 SA T 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.
30 SA T 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 va.
31 SA T SIMPLE DISEQC TM , T ONE BURST The Simple T one 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: T one Burst and Data Burst.
32 SA T DVB-S(2) MER, BER AND OFFSET MEASUREMENT The modulation error rate (MER), the bit error rate (BER) and the carrier frequency offset (LNB of fset) 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 SA T LOCA TING SA TELLITES 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 form of an increasing or decreasing bar .
34 SA T 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.
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 Pre.
36 CHANNEL DISPLA Y AND ENTR Y T o 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.
37 COMMAND OVERVIEW FOR TV FREQUENCY ENTR Y Switch to desired TV reception Channel/frequency switch ... Enter frequency Con fi rm entry and Change frequency in intervals or Example T o enter the frequency 175.25 MHz: Press (calling up the frequency menu) Then (frequency entry) LC display: • Frequency: 175.
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 .
39 Example T o measure audio carrier level spacing and level of TT1: Press , now press and keep the button pressed. The LC display indicates the following values for app. 1 second: • Audio carrier level spacing - frequency: 5.5 MHz • Audio carrier - video carrier spacing -13 dB • Operating mode: Analogue cable TV After app.
40 DIGIT AL 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-.
41 CHANNEL DISPLA Y AND ENTR Y T o 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.
42 COMMAND OVERVIEW FOR TV FREQUENCY ENTR Y Switch to desired TV reception Channel/frequency switch ... Enter frequency Con fi rm entry and Change frequency in intervals or Example T o enter the frequency 175.25 MHz: Press (calling up the frequency menu) Then (frequency entry) LC display: • Frequency: 175.
43 TV MEASUREMENT LEVEL MEASUREMENT OF “DVB-C”/“DVB-T/H” SIGNALS ANALOGUE CABLE/DVB C SWITCH Press once = Analogue cable TV Press again = DVB-C • Channel: Special channel 54 • Operating mode: TV DVB-C • Measured level: 62.5 dBµV LC display for DVB-C signals: • MER modulation error rate: 28.
44 TV MEASUREMENT MPEG IMAGE REPRESENT A TION 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 .
45 HF ST ANDARD 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” reception types.
46 TV MEASUREMENT CHANNEL DISPLA Y AND ENTR Y T o 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 .
47 TV MEASUREMENT COMMAND OVERVIEW FOR TV FREQUENCY ENTR Y Channel/frequency switch ... Enter frequency Con fi rm entry and Change frequency in intervals Example T o enter the frequency 175.25 MHz: Press (calling up the frequency menu) Then (frequency entry) LC display: • Frequency: 175.
48 HF ST ANDARD 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. DIGIT AL TERRESTRIAL TV RECEPTION In TERR mode the MSK 125 can be set to the “Analogue” and “DVB-T/H” reception types.
49 TV MEASUREMENT CHANNEL DISPLA Y AND ENTR Y T o 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 .
50 TV MEASUREMENT COMMAND OVERVIEW FOR TV FREQUENCY ENTR Y Channel/frequency switch ... Enter frequency Con fi rm entry and Change frequency in intervals Example T o enter the frequency 527.25 MHz: Press (calling up the frequency menu) Then (frequency entry) LC display: • Frequency: 527.
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.
52 TV MEASUREMENT 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.
53 NICAM AUDIO BIT ERROR RA TE MEASUREMENT For better evaluation of the Nicam signal audio quality the bit error rate (BER) can be measured. Example T o 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=0.
54 FM MEASUREMENT FM SWITCH Press the button. FREQUENCY DISPLA Y AND ENTR Y T o 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 OVER VIEW FOR FM FREQUENCY ENTR Y Switch to FM reception .
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 .
56 SPECTRUM MEASUREMENT For evaluation of a receiver the frequency spectrum in the “Satellite”, “Cable”, “T errestrial” and “FM” modes can be displayed on the screen. Spectrum measurement is launched from the individual modes (Sat, Cab;e, T err , or FM).
57 SPECTRUM MEASUREMENT FULL SP AN = entire TV range (48 ... 858 MHz) VHF (48 ... 467 MHz) UHF (467 ... 858 MHz).
58 SPECTRUM MEASUREMENT NARROW (197 ... 222 MHz) ANALOGUE NARROW (381 ... 406 MHz) DIGIT AL 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.
59 ST ORING DEVICE SETTINGS ST ORING 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.
60 ST ORING MEASUREMENT RESUL TS ST ORING MEASUREMENT RESUL TS IN THE DEVICE MEMOR Y 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 ST ORING MEASUREMENT RESUL TS TFT display DELETING MEASUREMENT RESUL TS FROM THE DEVICE MEMOR Y 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 results are to be deleted.
62 ST ORING MEASUREMENT RESUL TS Y ou can either transfer the measurement results on the SD card to a PC via USB connection or read, manage and print out the SD card directly on your PC! The required conversion program is available on our web site. Please go to “http://www .
63 DA T A 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.
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 AUT OMA TIC MEASURING RECOVERING MEASUREMENT RESUL TS FROM THE DEVICE MEMOR Y The Memory Explorer command displays the stored measuring results on the TFT display .
65 ST ORING THE DA T A LOGGER MEASUREMENT RESUL TS ON THE SD CARD DA T A LOGGER See: Storing measurement results on the SD card. Example Call up Data Logger Select start line Select stop line Start au.
66 MAINTENANCE The device maintenance is basically limited to outside cleaning. DEVICE CALIBRA TION 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.
67 CUST OMER SER VICE For service or to order replacement parts please contact: ESC GmbH Bahnhofstraße 108 83224 Grassau, Germany T el.: +49 8641 9545-0 Fax: +49 8641 9545-35 E-mail: service@esc-kathrein.
68 FEA TURES • 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.
69 TECHNICAL DA T A T ype 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 .
70 Level measuring component Measuring range dBµV 30 ... 120 Measurement accuracy dB ± 2 Measurement bandwidth SA T : 6 MHz SA T -DVB: 6 MHz TV : 250 kHz TV -DVB: 6 MHz FM: 250 kHz Detector SA T : Mean value display TV : Peak value display FM: Mean value display BER/MER/carrier offset measurement DVB-S(2)/-C/-T/-H Display TV monitor TFT 5.
71 TECHNICAL APPENDIX SIGNAL-T O-NOISE RA TIO T o 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.
72 TECHNICAL APPENDIX DISEQC TM COMMANDS FOR KA THREIN MA TRICES COMMAND SET FOR KA THREIN MA TRICES Range POS. A (satellite 1) Low band High band V ert. Horiz. V ert. Horiz. DiSeqC TM command E0 00 3 8 F0 E0 00 38 F2 E0 0 0 38 F1 E0 0 0 38 F 3 Range POS.
73 TECHNICAL APPENDIX CHANNEL T ABLES CHANNEL UND FREQUENCY T ABLE, ST ANDARD B/G (FREQUENCY IN MHZ) VHF-CCIR UHF-CCIR UHF-CCIR Pilot frequency E2 E3 E4 E5 E6 E7 E8 E9 E10 E1 1 E12 A B S D E F G H 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 80.
74 TECHNICAL APPENDIX CHANNEL UND FREQUENCY T ABLE, ST ANDARD L (FREQUENCY IN MHZ) VHF UHF UHF *LB *LC *LC1 L1 L2 L3 L4 L5 L6 K 1 4 K 1 5 K 1 6 K 1 7 K 1 8 K 1 9 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 80.75 55.75 60.50 63.75 176.00 184.
75 TECHNICAL APPENDIX CHANNEL UND FREQUENCY T ABLE, D/K ST ANDARD (FREQUENCY IN MHZ) VHF UHF UHF R-I R-II R-III R-IV R-V R-VI R-VII R- R-IX R-X R-XI R-XII 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 49.75 59.75 77.25 85.25 93.52 175.25 183.
76 TECHNICAL APPENDIX CHANNEL UND FREQUENCY T ABLE, I ST ANDARD (FREQUENCY IN MHZ) VHF UHF UHF I A I B I C I D I E I F I G I H I J 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 45.75 53.75 61.75 175.25 183.25 191.25 199.25 207.25 215.25 223.
77 CALCULA TION OF SA T 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 1 1700 MHz.
78 NOTES.
79 NOTES.
Internet: http://www .kathrein.de KA THREIN-Werke KG • Anton-Kathrein-Straße 1 - 3 P .O. Box 100 444 • 83004 Rosenheim GERMANY 936.3474/A/0409/ZWT - T echnical data subject to change.
An important point after buying a device Kathrein MSK 125 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Kathrein MSK 125 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Kathrein MSK 125 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Kathrein MSK 125 you will learn all the available features of the product, as well as information on its operation. The information that you get Kathrein MSK 125 will certainly help you make a decision on the purchase.
If you already are a holder of Kathrein MSK 125, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Kathrein MSK 125.
However, one of the most important roles played by the user manual is to help in solving problems with Kathrein MSK 125. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Kathrein MSK 125 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
