Kathrein MSK 125 User manual

Operating Manual
Antenna Measuring System
MSK 125

2
FOREWORD/IMPORTANT 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.
Please comply with all the instructions in this operating manual. KATHREIN-Werke KG has
done all it can to ensure that the data and descriptions in this operating manual are correct
and complete.
We reserve the right to make changes without notice. In particular, this applies to changes
made due to technical advancements.
We would be pleased to receive any suggestions for improvements.
All product names and brands used in this operating manual are the property of their
respective owners.
This operating manual is applicable to the MSK 125 measuring instrument, order no.:
21710022 and MSK 125/M4, order no.: 21710023. The following instructions are important
for operating the MSK 125 and should be complied with under all circumstances.
The MSK 125 has been developed and manufactured in compliance with all relevant
harmonised directives, standards and other technical specifications. The product is state-
of-the-art and offers a high level of safety. This degree of safety can however be achieved in
operation only if the user complies with all necessary safety regulations.
Electronic equipment must not be disposed of in domestic waste. According to directive
2002/96/EC OF THE EUROPEAN PARLIAMENT AND COUNCIL of 27th January 2003 on
waste electrical and electronic equipment, it must be disposed of professionally.
At the end of its service life, take this unit for disposal to an appropriate official collection
point.
Spent batteries are special waste!
Do not throw spent batteries into your domestic waste; take them to a collection point for old
batteries!
VALIDITY OF THIS OPERATING MANUAL
GENERAL SAFETY INSTRUCTIONS

3
CONTENTS
FOREWORD/IMPORTANT INSTRUCTIONS ................................................................................ 2
CONTENTS............................................................................................................................... 3
SAFETY INSTRUCTIONS........................................................................................................... 6
FUNCTIONALITY ...................................................................................................................... 7
OPERATING AND DISPLAY ELEMENTS..................................................................................... 9
CONNECTIONS....................................................................................................................... 13
GETTING STARTED ................................................................................................................ 15
SWITCH ON .......................................................................................................................... 15
SWITCHING OFF................................................................................................................... 15
SETUP MENU ....................................................................................................................... 15
SETUP MENU SETTINGS ...................................................................................................... 15
DEFAULT SETUP SETTINGS AT TIME OF SHIPMENT .................................................................. 16
MAINS AND BATTERY OPERATION ....................................................................................... 16
MAINS OPERATION.............................................................................................................. 16
BATTERY OPERATION .......................................................................................................... 17
SAT........................................................................................................................................ 18
ANALOGUE SATELLITE RECEPTION................................................................................. 18
SAT ANALOGUE/DVB-S(2) SWITCH ......................................................................................... 18
FREQUENCY DISPLAY AND ENTRY ........................................................................................ 18
COMMAND OVERVIEW OF SAT FREQUENCY ENTRY................................................................. 18
LNB VOLTAGE AND 22 KHZ CHANGE-OVER .......................................................................... 19
“SAT ANALOGUE” LEVEL MEASUREMENT................................................................................ 20
SOUND CARRIER FREQUENCY SETTING ............................................................................. 20
DIGITAL SAT RECEPTION...................................................................................................... 22
FREQUENCY DISPLAY AND ENTRY ........................................................................................ 22
COMMAND OVERVIEW OF SAT FREQUENCY ENTRY................................................................. 22
LNB VOLTAGE AND 22 KHZ CHANGE-OVER .......................................................................... 23
“SAT DVB-S(2)” LEVEL MEASUREMENT ................................................................................... 25
SETTING DVB-S(2) DEMODULATION PARAMETERS................................................................... 25
DISEQCTM (DIGITAL SATELLITE EQUIPMENT CONTROL) ....................................................... 25
COMMAND OVERVIEW FOR DISEQCTM .................................................................................... 26
COMMAND OVERVIEW FOR FRAMING BYTE............................................................................ 28
COMMAND OVERVIEW FOR ADDRESS BYTE ........................................................................... 28
COMMAND OVERVIEW FOR COMMAND BYTE.......................................................................... 29
COMMAND OVERVIEW FOR DATA BYTE .................................................................................. 30
LIST OF SINGLE CABLE DISEQCTM COMMAND.......................................................................... 31
SIMPLE DISEQCTM, TONE BURST .......................................................................................... 31
COMMAND OVERVIEW FOR “SIMPLE DISEQCTM”....................................................................... 31
DVB-S(2) MER, BER AND OFFSET MEASUREMENT............................................................... 32
MPEG IMAGE REPRESENTATION IN DVB-S(2)....................................................................... 32
LOCATING SATELLITES ........................................................................................................ 33
FINDING INDIVIDUAL RECEPTION FREQUENCIES ................................................................ 34
TV MEASUREMENT................................................................................................................ 35
ANALOGUE TV CABLE RECEPTION ...................................................................................... 35

4
CONTENTS
ANALOGUE CABLE/DVB C SWITCH ........................................................................................ 35
HF STANDARD SWITCH - ANALOGUE CABLE (DEMOD MENU)..................................................... 35
CHANNEL DISPLAY AND ENTRY ........................................................................................... 36
COMMAND OVERVIEW FOR TV CHANNEL ENTRY..................................................................... 36
FREQUENCY DISPLAY AND ENTRY....................................................................................... 36
COMMAND OVERVIEW FOR TV FREQUENCY ENTRY ................................................................ 37
“CABLE ANALOGUE” LEVEL MEASUREMENT ........................................................................ 37
LEVEL OVERFLOW AND UNDERFLOW .................................................................................... 38
AUDIO CARRIER SPACING AND LEVEL ................................................................................. 38
COMMAND OVERVIEW FOR “MEASURE TV AUDIO CARRIER FREQUENCY” .................................. 38
DIGITAL TV CABLE RECEPTION ............................................................................................ 40
ANALOGUE CABLE/DVB C SWITCH ........................................................................................ 40
HF STANDARD SWITCH - ANALOGUE CABLE (DEMOD MENU)..................................................... 40
CHANNEL DISPLAY AND ENTRY ........................................................................................... 41
COMMAND OVERVIEW FOR TV CHANNEL ENTRY..................................................................... 41
FREQUENCY DISPLAY AND ENTRY....................................................................................... 41
COMMAND OVERVIEW FOR TV FREQUENCY ENTRY ................................................................ 42
SETTING DVB-C DEMODULATION PARAMETERS ...................................................................... 42
LEVEL MEASUREMENT OF “DVB-C”/“DVB-T/H” SIGNALS ....................................................... 43
ANALOGUE CABLE/DVB C SWITCH ........................................................................................ 43
DVB-C/DVB-T/H MER, BER AND OFFSET MEASUREMENT..................................................... 43
MPEG IMAGE REPRESENTATION IN DVB-C .......................................................................... 44
ANALOGUE TERRESTRIAL TV RECEPTION........................................................................... 45
ANALOGUE TERRESTRIAL/DVB T/H SWITCH............................................................................ 45
HF STANDARD SWITCH - TERRESTRIAL.................................................................................. 45
SET CHANNEL BANDWIDTH .................................................................................................. 45
HF STANDARD SWITCH ........................................................................................................ 45
CHANNEL DISPLAY AND ENTRY ........................................................................................... 46
COMMAND OVERVIEW FOR TV CHANNEL ENTRY..................................................................... 46
FREQUENCY DISPLAY AND ENTRY....................................................................................... 46
COMMAND OVERVIEW FOR TV FREQUENCY ENTRY ................................................................ 47
DIGITAL TERRESTRIAL TV RECEPTION ................................................................................ 48
ANALOGUE TERRESTRIAL/DVB T/H SWITCH............................................................................ 48
HF STANDARD SWITCH - TERRESTRIAL.................................................................................. 48
SETTING DVB-T/H DEMODULATION PARAMETERS ................................................................... 48
HF STANDARD SWITCH - DVB-T............................................................................................. 48
CHANNEL DISPLAY AND ENTRY ........................................................................................... 49
COMMAND OVERVIEW FOR TV CHANNEL ENTRY..................................................................... 49
FREQUENCY DISPLAY AND ENTRY....................................................................................... 49
COMMAND OVERVIEW FOR TV FREQUENCY ENTRY ................................................................ 50
DVB-C/DVB-T/H MER, BER AND OFFSET MEASUREMENT..................................................... 50
MPEG IMAGE REPRESENTATION IN DVB-T........................................................................... 51
FINDING INDIVIDUAL RECEPTION FREQUENCIES ................................................................ 52
NICAM AUDIO BIT ERROR RATE MEASUREMENT ................................................................. 53
FM MEASUREMENT................................................................................................................ 54
FM SWITCH .......................................................................................................................... 54
FREQUENCY DISPLAY AND ENTRY....................................................................................... 54
COMMAND OVERVIEW FOR FM FREQUENCY ENTRY........................................................... 54

5
LEVEL MEASUREMENT ........................................................................................................ 54
LEVEL OVERFLOW AND UNDERFLOW .................................................................................... 55
FINDING INDIVIDUAL RECEPTION FREQUENCIES ................................................................ 55
COMMAND OVERVIEW FOR “FIND”......................................................................................... 55
SPECTRUM MEASUREMENT.................................................................................................. 56
SAT SPECTRUM ................................................................................................................... 56
TV SPECTRUM ..................................................................................................................... 56
FM SPECTRUM..................................................................................................................... 58
STORING DEVICE SETTINGS.................................................................................................. 59
STORING DEVICE SETTINGS................................................................................................ 59
STORING DEVICE SETTINGS................................................................................................ 59
DELETING DEVICE SETTINGS .............................................................................................. 59
STORING MEASUREMENT RESULTS...................................................................................... 60
STORING MEASUREMENT RESULTS IN THE DEVICE MEMORY ............................................ 60
RECOVERING MEASUREMENT RESULTS FROM THE DEVICE MEMORY............................... 60
DELETING MEASUREMENT RESULTS FROM THE DEVICE MEMORY..................................... 61
STORING MEASUREMENT RESULTS ON THE SD CARD........................................................ 61
DATA LOGGER ....................................................................................................................... 63
ENTERING THE START AND STOP LINE FOR AUTOMATIC MEASURING ................................ 63
ENTERING THE START LINE FOR AUTOMATIC MEASURING ....................................................... 63
ENTERING THE STOP LINE FOR AUTOMATIC MEASURING......................................................... 64
STARTING AND INTERRUPTING AUTOMATIC MEASURING.................................................... 64
RECOVERING MEASUREMENT RESULTS FROM THE DEVICE MEMORY............................... 64
STORING THE DATA LOGGER MEASUREMENT RESULTS ON THE SD CARD......................... 65
MAINTENANCE....................................................................................................................... 66
DEVICE CALIBRATION .......................................................................................................... 66
OUTSIDE CLEANING............................................................................................................. 66
INSIDE CLEANING ................................................................................................................ 66
FUNCTIONAL TEST............................................................................................................... 66
REQUIRED MEASUREMENT TOOLS...................................................................................... 66
CHANGING THE BATTERY .................................................................................................... 66
STORAGE............................................................................................................................. 66
CUSTOMER SERVICE............................................................................................................. 67
TECHNICAL CUSTOMER SUPPORT ...................................................................................... 67
FEATURES ............................................................................................................................. 68
TECHNICAL DATA .................................................................................................................. 69
TECHNICAL APPENDIX........................................................................................................... 71
SIGNAL-TO-NOISE RATIO ..................................................................................................... 71
DISEQCTM COMMANDS FOR KATHREIN MATRICES ............................................................... 72
CHANNEL TABLES ................................................................................................................ 73
CALCULATION OF SAT IF FREQUENCY USING THE MSK 125................................................. 77
NOTES ................................................................................................................................... 78
CONTENTS

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.
MEANING OF SYMBOLS
Notes with a caution symbol must be adhered to to avoid damage to the MSK 125.
This symbol indicates notes for measuring functions or refers to chapters that contain more
details on a matter.
This symbol is followed by an example of a measuring function that has been explained.
Here a command overview is provided for relevant key combinations for a measuring
function.
Device button
SAFETY INSTRUCTIONS
Please follow enclosed safety instructions.
PRODUCT PACKAGE
1 German/English operating manual
1 AC/DC power unit
1 power cable
1 BNC measuring cable
2 adapters for BNC input – F input (one in the HF input of the MSK 125)
1 adapter for BNC input – F connector
1 adapter for BNC input – IEC input
1 adapter for BNC input – IEC connector
1 USB cable
1 SD card (1 GB memory card)

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.
A micro controller is responsible for the entire controlling, keypad query and display of
frequency and level on the LC display. The receiving frequency is indicated in MHz. The
level is measured with a peak and mean value detector and displayed digitally in dBµV or
dBmV. Correction values are determined during the MSK 125 level calibration and stored in
an EEPROM. This ensures precise level measuring. Up to 100 measuring device settings
can be stored as well.
A second micro controller allows you to store several 1000 measuring results on an SC card
or to read the SD card (up to 1GB) via USB.
For transmitter location the display has a bar graph. Additionally, a level-dependent bearing
sound facilitates directing an antenna without having to look at the display.
The audio unit with integrated speaker can process and render SAT NF signals, the TV NF
signals of B/G, D/K and I, FM sound signals as well as DVB-C, DVB-T and DVB-S(2). NICA
and AM sound rendering (standard L) is also possible.
Remote power feed of 5 ... 20 V/max. 600 mA (in 0.1 Volt increments), the superposition
of 22 kHz and the possibility of sending DiSEqCTM commands covers all currently
known requirements. With DVB-T a 5 V antenna feeding voltage can be received at the
RF connector. Also, the MZV 10 preamplifier or similar preamplifiers can be fed remotely.
The integrated, transflective 5.7“ TFT colour display with a resolution of 640 x 480 pixels
allows for picture evaluation of analogue and digital TV and SAT signals in the dark as well
as in sunlight.
A large black and white LC displayshows the measurement results with very high contrasts.

8
FUNCTIONALITY
Function Operating
mode SAT 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 input * * * Level-dependent signal sound ****** Spectrum analysis ****** Speaker for audio check ****** Multi-standard reception (B/G, D/K, I, L, Nicam) Nicam sound reception and L norm
* * * QPSK
8PSK
QAM64,
128,256
COFDM
2k, 8k
Audio carrier setting * * Audio carrier measurement * LNB remote feed power supply adjustable LNB remote feed power measurement
******
22 kHz switch * * * * DiSEqC, Simple DiSEqCTM ******
DVB level measurement *** DVB-MER-BER measurement *** DVB image display *** SCART output and input (CVBS, Audio) * *
* (audio only)
***
Nicam audio, reception and bit error rate measurement
*
Storing measurement results Storing device settings
******

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 COLOUR DISPLAY
Based on the operating mode the 5.7“ TFT-Display displays the
following:
• Spectrum analysis
• TV picture
• Selection of digital programmes transmitted on the channel or
transponder
• LNB and DiSEqCTM
LED DISPLAY
• Operating voltage (battery operation = red / mains operation =
green)
• LNB supply (voltage = green / short circuit = green blinking)
external voltage = red)

10
OPERATING AND DISPLAY ELEMENTS
TFT colour display
TV picture/settings
Source selection
On/off button
Indication of
operation mode
Input block
Measurements
LC display
Measurement results
Settings
LNB display
Cursor block