Kathrein MSK 125 Operating instructions

Operating Manual

Antenna Measuring System

MSK 125

For software version V1.2

2

FOREWORD/IMPORTANT INSTRUCTIONS

Dear customer,

thank you 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, article no.:

21710022 and MSK 125/M4, article 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 speciﬁ cations. 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 is not household waste - in accordance with directive 2002/96/EC OF

THE EUROPEAN PARLIAMENT AND THE COUNCIL dated 27

th

January 2003 on used

electrical and electronic equipment, it must be disposed of properly.

At the end of its service life, take this unit for disposal at a designated public 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

VALIDITY OF THIS OPERATING MANUAL ................................................................................... 2

GENERAL SAFETY INSTRUCTIONS .......................................................................................... 2

CONTENTS ............................................................................................................................... 3

SAFETY INSTRUCTIONS ........................................................................................................... 7

MEANING OF SYMBOLS ......................................................................................................... 7

SAFETY INSTRUCTIONS ......................................................................................................... 7

PRODUCT PACKAGE .............................................................................................................. 7

FUNCTIONALITY ...................................................................................................................... 8

OPERATING AND DISPLAY ELEMENTS ................................................................................... 10

LCD DISPLAY ........................................................................................................................ 10

TFT COLOUR DISPLAY.......................................................................................................... 10

LED DISPLAY ........................................................................................................................ 10

OVERVIEW OF KEYPAD COMMANDS .................................................................................... 12

CONNECTIONS ....................................................................................................................... 14

FRONT VIEW ........................................................................................................................ 14

SIDE VIEW ............................................................................................................................ 14

EXTERNAL DC SUPPLY ........................................................................................................ 14

RF INPUT .............................................................................................................................. 15

USB PORT ............................................................................................................................ 15

SD CARD .............................................................................................................................. 15

HDMI OUTPUT ...................................................................................................................... 15

SCART SOCKET ................................................................................................................... 15

COMMON INTERFACE .......................................................................................................... 15

PHONES SOCKET ................................................................................................................. 15

RS 232 INTERFACE ............................................................................................................... 15

GETTING STARTED ................................................................................................................ 16

POWER UP ........................................................................................................................... 16

POWER DOWN ..................................................................................................................... 16

SETUP MENU ....................................................................................................................... 16

SETUP MENU SETTINGS ...................................................................................................... 16

DEFAULT SETUP SETTINGS AT TIME OF SHIPMENT .................................................................. 17

MAINS AND BATTERY OPERATION ....................................................................................... 17

MAINS OPERATION .............................................................................................................. 17

BATTERY OPERATION .......................................................................................................... 18

SAT ........................................................................................................................................ 19

ANALOGUE SATELLITE RECEPTION ..................................................................................... 19

SAT ANALOGUE/DVB-S(2) SELECTION .................................................................................... 19

FREQUENCY DISPLAY AND ENTRY ........................................................................................ 19

COMMAND OVERVIEW OF SAT FREQUENCY INPUT .................................................................. 19

SAT TRANSPONDER FREQUENCY INPUT ................................................................................ 20

LNB VOLTAGE AND 22 KHZ SELECTION ................................................................................ 21

“SAT ANALOGUE” LEVEL MEASUREMENT ................................................................................ 23

SOUND CARRIER FREQUENCY SETTING ............................................................................. 23

4

CONTENTS

DIGITAL SAT RECEPTION ...................................................................................................... 25

FREQUENCY DISPLAY AND ENTRY ........................................................................................ 25

COMMAND OVERVIEW OF SAT FREQUENCY INPUT .................................................................. 25

LNB VOLTAGE AND 22 KHZ SELECTION ................................................................................ 26

“SAT DVB-S(2)” LEVEL MEASUREMENT ................................................................................... 28

SETTING DVB-S(2) DEMODULATION PARAMETERS ................................................................... 28

DISEQC

TM

(DIGITAL SATELLITE EQUIPMENT CONTROL) ....................................................... 28

COMMAND OVERVIEW FOR DISEQC

TM

.................................................................................... 29

COMMAND OVERVIEW FOR “FRAMING BYTE” .......................................................................... 31

COMMAND OVERVIEW FOR “ADDRESS BYTE” ......................................................................... 31

COMMAND OVERVIEW FOR “COMMAND BYTE” ........................................................................ 32

COMMAND OVERVIEW FOR “DATA BYTE” ................................................................................ 33

SCIF – SINGLE CABLE INTERFACE (SAT SINGLE CABLE SYSTEM DISEQC CONTROL) ......... 34

SIMPLE DISEQC

TM

, TONE BURST .......................................................................................... 38

COMMAND OVERVIEW FOR “SIMPLE DISEQC

TM

” ....................................................................... 38

DVB-S(2) MER, BER AND OFFSET MEASUREMENT ............................................................... 38

MPEG IMAGE REPRESENTATION IN DVB-S(2) ....................................................................... 39

NIT NETWORK INFORMATION TABLE WITH DVB-S (S2) ......................................................... 39

LOCATING SATELLITES ........................................................................................................ 40

FINDING INDIVIDUAL RECEPTION FREQUENCIES ................................................................ 41

TV MEASUREMENT ................................................................................................................ 42

ANALOGUE CABLE TV RECEPTION ...................................................................................... 42

ANALOGUE CABLE/DVB-C SELECTION ................................................................................... 42

HF STANDARD SELECTION - ANALOGUE CABLE (DEMOD MENU) ................................................ 42

CHANNEL DISPLAY AND ENTRY ........................................................................................... 43

COMMAND OVERVIEW FOR “TV CHANNEL ENTRY” ................................................................... 43

FREQUENCY DISPLAY AND ENTRY ....................................................................................... 43

COMMAND OVERVIEW FOR TV “FREQUENCY ENTRY” .............................................................. 44

“CABLE ANALOGUE” LEVEL MEASUREMENT ........................................................................ 44

LEVEL OVERFLOW AND UNDERFLOW .................................................................................... 45

AUDIO CARRIER SPACING AND LEVEL ................................................................................. 45

COMMAND OVERVIEW FOR “MEASURE TV AUDIO CARRIER FREQUENCY” .................................. 45

DIGITAL CABLE TV RECEPTION ............................................................................................ 47

ANALOGUE CABLE/DVB-C SELECTION ................................................................................... 47

HF STANDARD SELECTION - ANALOGUE CABLE (DEMOD MENU) ................................................ 47

CHANNEL DISPLAY AND ENTRY ........................................................................................... 48

COMMAND OVERVIEW FOR “TV CHANNEL ENTRY” ................................................................... 48

FREQUENCY DISPLAY AND ENTRY ....................................................................................... 48

COMMAND OVERVIEW FOR “TV FREQUENCY ENTRY” .............................................................. 49

SETTING DVB-C DEMODULATION PARAMETERS ...................................................................... 49

LEVEL MEASUREMENT OF “DVB-C” SIGNALS ....................................................................... 50

ANALOGUE CABLE/DVB-C SELECTION ................................................................................... 50

DVB-C MER, BER AND OFFSET MEASUREMENT ................................................................... 50

MPEG IMAGE REPRESENTATION IN DVB-C .......................................................................... 51

NIT NETWORK INFORMATION TABLE FOR DVB-C ................................................................. 51

ANALOGUE TERRESTRIAL TV RECEPTION ........................................................................... 52

ANALOGUE TERRESTRIAL / DVB T/H SELECTION ..................................................................... 52

HF STANDARD SELECTION – TERRESTRIAL ............................................................................ 52

5

SET CHANNEL BANDWIDTH .................................................................................................. 52

HF STANDARD SELECTION ................................................................................................... 52

CHANNEL DISPLAY AND ENTRY ........................................................................................... 53

COMMAND OVERVIEW FOR “TV CHANNEL ENTRY” ................................................................... 53

FREQUENCY DISPLAY AND ENTRY ....................................................................................... 53

COMMAND OVERVIEW FOR “TV FREQUENCY ENTRY” .............................................................. 54

DIGITAL TERRESTRIAL TV RECEPTION ................................................................................ 55

ANALOGUE TERRESTRIAL / DVB T/H SELECTION ..................................................................... 55

HF STANDARD SELECTION – TERRESTRIAL ............................................................................ 55

SETTING DVB-T/H DEMODULATION PARAMETERS ................................................................... 55

HF STANDARD SELECTION DVB-T .......................................................................................... 55

CHANNEL DISPLAY AND ENTRY ........................................................................................... 56

COMMAND OVERVIEW FOR “TV CHANNEL ENTRY” ................................................................... 56

FREQUENCY DISPLAY AND ENTRY ....................................................................................... 56

COMMAND OVERVIEW FOR “TV FREQUENCY ENTRY” .............................................................. 57

DVB-T-/H MER, BER AND OFFSET MEASUREMENT ............................................................... 58

MPEG IMAGE REPRESENTATION IN DVB-T ........................................................................... 58

NIT NETWORK INFORMATION TABLE FOR DVB-T ................................................................. 59

FINDING INDIVIDUAL RECEPTION FREQUENCIES ................................................................ 60

NICAM AUDIO BIT ERROR RATE MEASUREMENT ................................................................. 61

TV RETURN PATH MEASUREMENT ....................................................................................... 61

FM MEASUREMENT ................................................................................................................ 62

FM SELECTION ..................................................................................................................... 62

FREQUENCY DISPLAY AND ENTRY ....................................................................................... 62

COMMAND OVERVIEW FREQUENCY ENTRY FM ................................................................... 62

LEVEL MEASUREMENT ........................................................................................................ 62

LEVEL OVERFLOW AND UNDERFLOW .................................................................................... 63

FINDING INDIVIDUAL RECEPTION FREQUENCIES ................................................................ 63

COMMAND OVERVIEW FOR “FIND” ......................................................................................... 63

SPECTRUM MEASUREMENT .................................................................................................. 64

SAT SPECTRUM ................................................................................................................... 64

TV SPECTRUM ..................................................................................................................... 65

RETURN PATH SPECTRUM ................................................................................................... 67

FM SPECTRUM ..................................................................................................................... 67

STORING DEVICE SETTINGS .................................................................................................. 68

STORING DEVICE SETTINGS ................................................................................................ 68

RESTORING DEVICE SETTINGS ........................................................................................... 68

DELETING DEVICE SETTINGS .............................................................................................. 68

STORING MEASUREMENT RESULTS ...................................................................................... 69

STORING MEASUREMENT RESULTS IN THE DEVICE MEMORY ............................................ 69

RESTORING MEASUREMENT RESULTS FROM THE DEVICE MEMORY.................................. 69

DELETING MEASUREMENT RESULTS FROM THE DEVICE MEMORY..................................... 70

STORING MEASUREMENT RESULTS ON THE SD CARD ........................................................ 70

CONTENTS

6

DATA LOGGER ....................................................................................................................... 72

ENTERING THE START AND STOP LINE FOR AUTOMATIC MEASURING ................................ 72

ENTERING THE START LINE FOR AUTOMATIC MEASURING ....................................................... 72

ENTERING THE STOP LINE FOR AUTOMATIC MEASURING ......................................................... 73

STARTING AND INTERRUPTING AUTOMATIC MEASURING .................................................... 73

RESTORING MEASUREMENT RESULTS FROM THE DEVICE MEMORY.................................. 73

STORING THE DATA LOGGER MEASUREMENT RESULTS ON THE SD CARD ......................... 74

MAINTENANCE ....................................................................................................................... 75

DEVICE CALIBRATION .......................................................................................................... 75

OUTSIDE CLEANING ............................................................................................................. 75

INTERIOR CLEANING ............................................................................................................ 75

FUNCTION TEST ................................................................................................................... 75

REQUIRED MEASURING EQUIPMENT ................................................................................... 75

CHANGING THE BATTERY .................................................................................................... 75

STORAGE ............................................................................................................................. 75

CUSTOMER SERVICE ............................................................................................................. 76

TECHNICAL CUSTOMER SUPPORT ...................................................................................... 76

FEATURES ............................................................................................................................. 77

TECHNICAL DATA .................................................................................................................. 78

TECHNICAL APPENDIX ........................................................................................................... 80

SIGNAL-TO-NOISE RATIO ..................................................................................................... 80

DISEQC

TM

COMMANDS FOR KATHREIN MATRICES ............................................................... 81

COMMAND SET FOR KATHREIN MATRICES ............................................................................. 81

COMMAND SET FOR KATHREIN MATRIX EXR 20 ....................................................................... 81

COMMAND SET FOR KATHREIN MATRIX EXR 22 ....................................................................... 81

LIST OF SINGLE CABLE DISEQC

TM

COMMANDS ........................................................................ 81

CHANNEL TABLES ................................................................................................................ 82

CHANNEL UND FREQUENCY TABLE, “STANDARD B/G” (FREQUENCY IN MHZ) ............................... 82

CHANNEL AND FREQUENCY TABLE, “STANDARD L” (FREQUENCY IN MHZ) ................................... 83

CHANNEL AND FREQUENCY TABLE, “STANDARD D/K” (FREQUENCY IN MHZ) ............................... 84

CHANNEL AND FREQUENCY TABLE, “STANDARD I” (FREQUENCY IN MHZ) ................................... 85

CALCULATION OF SAT IF FREQUENCY USING THE MSK 125 ................................................. 86

NOTES ................................................................................................................................... 87

7

SAFETY INSTRUCTIONS

This manual is intended for use by persons with a basic knowledge of electrics. Users who

have already worked with similar measuring devices can refer to 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 or the MSK 125 could be damaged or

destroyed.

This symbol indicates notes for measuring functions or refers to chapters that contain further

information on a topic.

This symbol is followed by an example of the measurement function being explained.

Provides a command overview with the relevant key combinations for the particular measuring

function.

Device button

SAFETY INSTRUCTIONS

Please follow the 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)

8

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 product package.

A microcontroller provides all control functions, keypad polling and display of frequencies and

levels on the LCD display. The reception 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 accurate level measurement. Up to 100 measuring device settings can also be

stored.

A second microcontroller allows you to store several thousand measurement results on an

SD card or to read the SD card (up to 1GB) via USB.

The display has a bar graph for transmitter location. Additionally, a level-dependent DF tone

makes it possible to align an antenna without having to observe 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.

The remote feed voltage of 5 ... 20 V/max. 600 mA (in 0.1 Volt increments), the superposition

of 22 kHz and the ability to transmit DiSEqC

TM

commands covers all currently known

requirements. With DVB-T a 5 V antenna feed voltage can be received at the at the RF socket.

The MZV 10 preampliﬁ er or similar preampliﬁ ers can also be fed remotely.

The built-in transﬂ ective 5.7" TFT colour display with its 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 LCD display shows the measurement results with very high

contrasts.

9

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 frequency input * * * * * *

Level measurement by channel input * * *

Level-dependent signal tone * * * * * *

Spectrum display * * * * * *

Loudspeaker for audio check * * * * * *

Multi-standard reception (B/G, D/K, I, L, Nicam)

Nicam audio reception and standard L

* * * QPSK

8PSK

QAM64,

128, 256

COFDM

2k, 8k

Audio carrier setting * *

Audio carrier measurement *

LNB remote feed voltage supply adjustable

LNB remote feed current measurement

** * ***

22 kHz switching * * * *

DiSEqC, Simple DiSEqC

TM

** * ***

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

** * ***

10

OPERATING AND DISPLAY ELEMENTS

Measured values and settings are shown on the LCD display.

LCD DISPLAY

Depending on the operating mode and function, the LCD display

shows

• the selected channel,

• the selected frequency,

• the called function,

• the operating mode,

• the measured level, and

• the measured values.

TFT COLOUR DISPLAY

Depending on the operating mode, the 5.7" TFT display shows the

following:

• Spectrum analysis

• TV image

• Selection of digital programmes transmitted on the channel or

transponder

• LNB and DiSEqC

TM

LED DISPLAY

• Operating voltage (battery operation = red / mains operation =

green)

• LNB supply (voltage = green / short circuit = green blinking)

external voltage = red)

11

OPERATING AND DISPLAY ELEMENTS

TFT Colour Display

TV picture/settings

Source selection

On/off button

Mode indicator

Input pad

Measurements

LCD display

Measurement

results

Settings

LNB display

Cursor pad

12

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 operation and switch

between analogue terrestrial TV and digital terrestrial TV

FM radio selection

Selection of video/audio inputs via SCART

Switch between channel and frequency input

Measure-

ments

Switch on level-dependent signal tone with bar graph display

Independent satellite search

Spectrum analysis

DVB measurement; MER, BER, OFFSET, MPEG program selection

LNB power measurement and lithium-ion charging status display

(Subcarrier) sound carrier menu, sound carrier measurement

Input pad

...

Alphanumeric input

Decimal point for digit input, DiSEqC

TM

hexadecimal input

Special channel call

OPERATING AND DISPLAY ELEMENTS

13

OPERATING AND DISPLAY ELEMENTS

Cursor pad

Reduce current values (frequency, channel, etc.)

Increase current values (frequency, channel, etc.)

Selection up

Selection down

Conﬁ rm input or selection

Reduce volume

Increase volume

Measurement memory management

Store measurement device settings and measured values

Retrieve measurement device settings and measured values

Settings

Default settings and setting the digital modulation parameters

Device settings

Data logger (automatic measuring)

Launch the DiSEqC

TM

menu

LNB and remote feed voltage menu

14

CONNECTIONS

FRONT VIEW

RF input USB port SD memory card

Common Interface

SCART (audio/video)

SIDE VIEW

Fan

Phones RS 232 Speakers

Battery fuse DC supply

EXTERNAL DC SUPPLY

The MSK 125 can be operated with a mains supply or its own built-in battery. For mains

operation, use the PSU and charger connected to the DC socket on the left-hand side of the

MSK 125 enclosure.

Use only the power supply unit that is supplied with the MSK 125.

HDMI socket

15

CONNECTIONS

RF INPUT

Here the reception signal is injected from the antenna system or cable network (coaxial

F socket with BNC adapter).

The remote feed voltage can be adjusted from 5 V

DC

to 20 V

DC

and can also be switched off.

When the LNB voltage is on, the right-hand LED lights up green. This LED ﬂ ashes green if

there is a short-circuit or overload. If an external supply is used, the LED is red.

Please note that there is

• no voltage level over 120 dBµV,

• no peak voltage > 100 Volt

at the RF input socket.

Failure to comply with these values can damage the input circuit!

SCART SOCKET

The video and audio signal is available at the SCART socket on the front of the MSK 125

for evaluation on an external monitor. The

button also allows you to switch to audio/

video input.

Incorrect connection wiring can damage the device!

PHONES SOCKET

3.5 mm stereo jack socket for connection of stereo ear phones

RS 232 INTERFACE

The RS 232 port allows you to perform software updates.

USB PORT

Measurement results can be read from the inserted SD card at the USB port (USB 1.1).

SD CARD

The supplied SD memory card is used to store the measurement results. SD cards up to

1 GB max. can be used.

COMMON INTERFACE

Slot for a common interface.

HDMI OUTPUT

The digital video and audio signal is available at the HDMI socket on the front of the

MSK 125 for output to an external HDMI monitor. This output is only available with digital

programmes.

16

GETTING STARTED

POWER UP

When setting up the device ensure that adequate ventilation is provided. The openings for the fan

and the ventilation holes must be kept clear at all times to avoid a build up of heat.

• Connect the device with the charger/power unit to the mains

supply.

• Press the

button.

• Adjust the desired volume using the

or button.

The LCD display shows the current software version and the serial

number of the MSK 125 for approx. 1 second.

Now feed the reception signal from the receiver into the RF input

socket.

LCD display:

• channel (48)

• source (terrestrial)

• level (A = analogue; D = digital level measurement)

Use the

, , , and buttons to

select the desired source.

POWER DOWN

Pressing until the “POWER DOWN” message appears will

save the last settings and automatically switch off the device.

Press the button for more than 5 seconds to turn off the device.

The last settings will be lost.

SETUP MENU

Use the “setup menu” to conﬁ gure your basic settings.

SETUP MENU SETTINGS

1. Setup Menu

To open the Setup menu:

Press the

button.

Press the

or buttons to switch LNB power supply

on or off. Press the

button to keep the desired setting.

17

GETTING STARTED

In the next menu press the or button to deﬁ 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. Press the

button to keep the desired

setting.

After you have set the low-level mute you automatically exit the

third setup menu.

2. Setup Menu

3. Setup Menu

DEFAULT SETUP SETTINGS AT TIME OF SHIPMENT

Parameter Setting

LNB DC OFF

LEVEL dBµV

LOW LEVEL MUTE ON

MAINS AND BATTERY OPERATION

The MSK 125 can be operated with a mains supply or its own built-in

battery.

MAINS OPERATION

Remove the AC power unit supplied (100 V ... 250 V) from its

packaging and use it to connect the device to the mains supply.

The integrated lithium-ion battery and the green LED next to the

button indicate the external power supply.

For mains operation use only the charger/power unit supplied.

The power unit is connected to the XLR power supply socket on

the left side of the device.

The device should be connected to the mains supply from time to

time if it not used for a while (trickle charge).

Note: A 12 V vehicle supply cable can be obtained through

our customer service (supplier ESC, for address see page 67)

(order no.: 19700841BF).

18

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 switching on unintentionally during

transport.

After the fuse has been inserted the charge status display will not

function properly until the battery has been fully discharged once.

Battery operation is only possible if the battery is charged

sufﬁ ciently. Otherwise the MSK 125 cannot be switched on.

Note

Once the battery has fully discharged it must be recharged

immediately to avoid damage to the battery.

Charging starts automatically when the device is connected to

the mains. A protection circuit prevents the battery from being

overcharged.

Battery operation is indicated by a red LED next to the

button.

The battery capacity is 6.45 Ah.

Press the

button to check the charging status of the

lithium-ion battery.

The LCD display shows the following values:

• LNB or remote feed voltage: 14.0 V

• LNB or remote feed current: 255 mA

• 22 kHz switched on

• Battery charge status: 80 %

• Bar graph (8 x 10 %)

Press the

button again to exit this operating mode.

19

SAT

ANALOGUE SATELLITE RECEPTION

In “SAT” mode the MSK 125 can be set to the “Analogue” and “DVB-S(2)” types of reception.

SAT ANALOGUE/DVB-S(2) SELECTION

Press once = SAT analogue

Press again = DVB-S(2)

Press again = SAT analogue again

FREQUENCY DISPLAY AND ENTRY

To measure the level of an reception signal, you must ﬁ rst input the

desired frequency. The LCD display indicates the frequency and the

measured level. The frequency can be entered from 920 MHz to

2150 MHz in 100 kHz increments.

COMMAND OVERVIEW OF SAT FREQUENCY INPUT

Select “satellite reception” (analogue or digital)

... Enter frequency

The frequency can be changed in 100 kHz

increments

Conﬁ rm input

LCD display:

• Frequency: 1288.0 MHz

• Operating mode: SAT

• Level: 66.5 dBµV A (A = analogue)

Example

To enter the “frequency 1508 MHz”:

Press

LCD display:

• Frequency: 1508.0 MHz

• Operating mode: SAT

• Level: 86.5 dBµV (A = analogue)

A “+” or “-” in the display means that the MSK 125 has not been

tuned accurately to the desired carrier. Use the

and

buttons to reﬁ ne the frequency for optimum reception. A vertical line

on the display indicates optimum frequency adjustment.

Complete your frequency entry by pressing the

button. The

most recent frequency setting is retained even after you switch the

MSK 125 off, provided it was entered with digits and conﬁ rmed by

pressing

.

Note

20

SAT

SAT TRANSPONDER FREQUENCY INPUT

Select “satellite reception” (analogue or digital)

... Enter frequency

The frequency can be changed in 100 kHz

increments

Conﬁ rm input

The FRQ/CHAN button can be used to switch

between SAT transponder frequency and SAT IF

frequency display.

To ensure that the SAT IF frequency can be correctly computed

when the SAT transponder frequency is entered, the right LO

frequency must ﬁ rst be selected in the LNB Control menu.

Note

- Press the LNB Control button

- Select: 2 = LO-FREQUENCY

- Select the appropriate LNB local oscillator.

Example

The SAT reception frequency range of the measuring device is:

920 MHz ... 2150 MHz

With the LO of 9750 MHz, you can receive transponders within

the range: 10670 MHz ... 11900 MHz.

With the LO of 10600 MHz, you can receive transponders within

the range: 11520 MHz ... 12750 MHz.

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