Kathrein MSK 25 Manuel utilisateur

Instruction Manual

MSK 25

Satellite/TV/FM

Test Receiver

analogue/digital

Preface

2

Preface

Dear customer,

The KATHREIN-Werke KG has done its utmost to guarantee the

correctness and completeness of this manual. However, no liability can

be assumed for any potential errors in this manual and any damages

thereby resulting.

This manual may not be copied or else be duplicated, neither as a whole,

nor in extracts, without the written consent of the KATHREIN-Werke KG.

This manual is subject to modifications and amendments without prior

notice. This in particular applies to modifications which suit the technical

progress.

All product names and trademarks in this manual are the property of the

respective firms.

Validity: This manual applies for the MSK 25. Date of issue: Sept. 2005

.

Contents

3

Contents

Preface.............................................................................................................................................................. 2

Contents ........................................................................................................................................................... 3

General Information......................................................................................................................................... 5

Signs and Symbols ........................................................................................................................................ 5

Safety Rules................................................................................................................................................... 5

Functionality .................................................................................................................................................... 6

Overview of Functions .................................................................................................................................... 7

Technical Data ................................................................................................................................................. 9

Control Elements and Indicators ................................................................................................................. 11

Control Elements.......................................................................................................................................... 11

TFT Colour Screen................................................................................................................................... 11

Connections (right hand side) ...................................................................................................................... 11

Short Cut Overview ....................................................................................................................................... 12

Connections ................................................................................................................................................... 13

RF Input Socket ........................................................................................................................................... 13

External DC Voltage Supply ........................................................................................................................ 13

Scart Output ................................................................................................................................................. 13

RS 232 Interface .......................................................................................................................................... 13

Commissioning.............................................................................................................................................. 14

Switching-Up ................................................................................................................................................ 14

Switching-Off................................................................................................................................................ 14

Setup-Menu.................................................................................................................................................. 15

Factory Setting on Delivery ...................................................................................................................... 15

Setup Menu Setting.................................................................................................................................. 15

Setup Menu Call-Up ............................................................................................................................. 15

Mains Operation and Battery Operation ...................................................................................................... 16

Mains Operation ....................................................................................................................................... 16

Battery Operation ..................................................................................................................................... 16

SAT measurement ......................................................................................................................................... 17

Standard Change-Over................................................................................................................................ 17

Frequency Display and Frequency Entry..................................................................................................... 18

SAT Menu Frequency Entry ..................................................................................................................... 18

SAT Analogue Level Measurement ............................................................................................................. 19

Level Overflow and Level Underflow........................................................................................................ 19

SAT DVB-S Level Measurement ................................................................................................................. 19

Locating Satellites ........................................................................................................................................ 20

Bearing for Individual Reception Frequencies ............................................................................................. 21

SAT Analogue Sound Carrier Frequency .................................................................................................... 22

DVB-S MER, BER and Offset Measurement............................................................................................... 23

MPEG Picture Representation (option) in DVB-S........................................................................................ 23

LNB Voltage and 22 kHz/60 Hz Change-Over ............................................................................................ 24

DiSEqC™ (Digital Satellite Equipment Control) .......................................................................................... 26

Framing Byte Menu .................................................................................................................................. 27

Address Byte Menu .................................................................................................................................. 28

Command Byte Menu............................................................................................................................... 29

Data Byte Menu........................................................................................................................................ 31

Simple Tone Burst DiSEqC™ ...................................................................................................................... 31

TV measurement............................................................................................................................................ 32

Standard Change-Over................................................................................................................................ 32

DVB-C/DVB-T Change-Over ....................................................................................................................... 33

Channel display and channel entry.............................................................................................................. 34

Frequency Display and Frequency Entry..................................................................................................... 35

Level Measurement TV Analogue................................................................................................................ 36

Level Overflow and Level Underflow........................................................................................................ 36

TV/DVB-C/DVB-T Level Measurement........................................................................................................ 36

Bearing for Individual Reception Frequencies ............................................................................................. 37

Sound Carrier Distance and Sound Carrier Level ....................................................................................... 38

NICAM Sound Bit Error Rate Measurement ................................................................................................ 39

DVB-C/DVB-T (option), MER, BER and Offset Measurement..................................................................... 40

Contents

4

MPEG Picture Representation (option) in DVB-C or DVB-T (option) .......................................................... 40

FM measurement ........................................................................................................................................... 41

Frequency Indication and Frequency Entry ................................................................................................. 41

Level Measurement...................................................................................................................................... 42

Level Overflow and Level Underflow........................................................................................................ 42

Bearing for Individual Reception Frequencies ............................................................................................. 43

Spectrum Measurement................................................................................................................................ 44

SAT Spectrum.............................................................................................................................................. 44

TV Spectrum ................................................................................................................................................ 44

FM Spectrum................................................................................................................................................ 45

Maintenance ................................................................................................................................................... 46

Changing the Battery ................................................................................................................................... 46

Customer Service ..................................................................................................................................... 46

Technical Appendix....................................................................................................................................... 47

Signal-to-Noise-Ratio................................................................................................................................... 47

DiSEqC™ Commands for Kathrein Matrices............................................................................................... 48

Instruction Set for 9xx Kathrein Matrix Production Run ........................................................................... 48

Instruction Set for EXR 20 Kathrein Matrix .............................................................................................. 48

Instruction Set for EXR 22 Kathrein Matrix .............................................................................................. 48

Channel Tables ............................................................................................................................................ 49

Channel Table and Frequency Table B/G Standard (frequencies in MHz).............................................. 49

Channel Table and Frequency Table L Standard (frequencies in MHz).................................................. 50

Channel Table and Frequency Table D/K Standard (frequencies in MHz).............................................. 51

Channel Table and Frequency Table I Standard (frequencies in MHz)................................................... 52

Channel Table and Frequency Table M1 Standard (Japan) (frequencies in MHz) ................................. 53

Channel Table and Frequency Table M/N Standard (frequencies in MHz) ............................................. 54

Channel Table and Frequency Table M/N Standard (frequencies in MHz) ............................................. 55

General Information

5

General Information

This user manual has been compiled for persons with some electrical

engineering ability and knowledge. Users who have already operated

similar measuring instruments can obtain the necessary commands for

each operating step from the overview. In addition, the following

examples will help you understand each operating step.

Signs and Symbols

Always adhere to the instructions classified with the warning signal

carefully, as otherwise the MSK 25 test receiver may be damaged or

even be destroyed.

This symbol provides information on measuring functions and refers to

chapters containing further particulars on a subject.

This symbol is followed by an example of the measuring function

explained.

Find an overview of the commands for the germane short cut for the

particular measuring function.

Key on the instrument to be pressed.

Safety Rules

Careful observance of the VDE safety instructions is essential!

Only fuses with the same power-down characteristics are to be used!

On feeding in signals, heed the allowable peak levels!

• HF input: max. 120 dBµV (60 dBmV)!

• Do not connect direct-current (DC) voltage to the RF socket!

Do not connect low frequency alternating-current (AC) voltage to the RF

socket!

The instrument is also energised when disconnected!

Use only the power supply unit provided for voltage feed!

Depending on the programming, between 5 V and 20 V may be

connected to the RF input socket. From 10 V to 20 V, up to 500 mA can

be obtained from the source, and up to 100 mA can be obtained from 5 V

to 9.9 V.

Additionally included in Delivery

1 Wall power supply

1 BNC measuring cable

1 Adapter BNC socket – F socket

1 Adapter BNC socket – F plug

1 Adapter BNC socket – IEC socket

1 Adapter BNC socket – IEC plug

1 20 dB attenuation plug with d.c. voltage passage

(Find indications on the frequency response of the enclosed attenuation

plug on the last page)

Electronic equipment is not household waste - in accordance with

directive 2002/96/EC OF THE EUROPEAN PARLIAMENT AND THE

COUNCIL of 27th 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 relevant

of. cial collection point.

☞

✐

À

[

ke

y

]

Functionality

The MSK 25 has been conceived as a portable test receiver for TV, SAT

and FM radio measurements, as well as for DVB-C, DVB-S and DVB-T in

both, battery operation and mains operation. The built-in lead battery (3.4

Ah) and a wall power supply with a built-in charger, suitable for 230 VAC,

are included in delivery.

Controlling and scanning of the console and the display of frequency and

level on the LCD are carried out by a microcontroller. The receiving

frequency is indicated in MHz. Levels are measured with a peak value

detector or with an average value detector and indicated digitally in dBµV

or dBmV. Correction values are determined when the levels are

calibrated for the MSK 25 and stored in EEPROM. Thus, precise level

measurement readings can be recorded.

A bargraph display is provided to help locate transmitters. In addition, a

level-dependent acoustic signal facilitates the antenna alignment. The

display need not be observed.

The audio part with its built-in loudspeaker can process and reproduce

the various Sat and TV-NF signals complying with the B/G, D/K, I, M1

(JAPAN) and M/N standards, as well as with the FM audio signals and

the DVB-C-, DVB-T- and DVB-S signals (if the intrument provides MPEG

or DVB-T respectively). NICAM and AM sound reproduction (L standard)

is also possible.

The LNB supply voltage of 20 V /, max. 500 mA, with a graduation of 0.1

V, as well as the superimposition of 22 kHz / 60 Hz and the option to

send DiSEqC™ commands or Simple-DiSEqC™commands, cover all

currently known specifications. In DVB-T mode, you can obtain antenna

feed voltage between 5 V and 9.9 V, max. 100 mA, from the RF socket.

The built-in TFT colour screen allows the screening and evaluation of

analogue TV and SAT signals on the spot. If MPEG option is provided,

also digital signals can be displayed.

Overview of Functions

7

Overview of Functions

Function

Analogue

SAT mode

Analogue

TV mode

Analogue

FM mode

DVB-S mode

DVB-C mode

Option DVB-T

mode

Mains operation and battery operation

*

Level measurement by frequency setting

*

Level measurement by channel setting

*

Level-dependent acoustic signal

*

Spectrum display

*

Loudspeaker for acoustics control

*

Option MPEG

Multiple standards reception (B/G, D/K, I, L, Nicam,

M/N, M1)

Nicam audio reception and L standard

*

QPSK

QAM 64,

QAM 128

COFDM

2k, 8k

Sound storage medium setting

*

Sound storage medium measurement

*

LNB external feeding power supply tunable

LNB external feeding current measurement

*

22 kHz / 60 Hz change-over

*

DiSEqC™, Simple DiSEqC™

*

DVB level measurement

*

DVB-MER-BER measurement

*

DVB displaying

Option MPEG

Scart output (video and audio)

*

* (audio )

Option MPEG

Nicam tone, reception and bit error rate measurement

*

8

LNB

0/5 - 20 V

Technical Data

9

Technical Data

Power supply

Mains operation 230 VAC, 50/60 Hz

Battery operation Lead Battery 12 V/3.4 Ah

Dimensions Width 260 mm, Height 90 (120) mm, Depth 165 mm

incl. accessories (plus case)

Weight ca. 4.5 kg (incl. case)

Safety standards CE mark

Protection class II

VDE EN 61010

Display TFT screen, LCD alpha numeric, 2x16 characters, Bargraph

display, backlit

Temperature range +5 C to +45 C

Frequency range SAT 920 MHz...2150 MHz

TV 48 MHz...858 MHz

FM 88 MHz...108 MHz (48 MHz...858 MHz)

Channel configuration TV B standard 7 MHz

D/G/I/K standard 8 MHz

M/N/M1 standard 6 MHz

Frequency tuning SAT 0.125 MHz graduations

TV 50 kHz graduations

FM 50 kHz graduations

Measurement error SAT Max. ±2 dB

TV/FM Max. ±2 dB

RF input BNC 75 Ω coaxial socket

RF input reducer 0 – 60 dB in 4 dB graduations

Level measurement range 30–120 dBµV

Measurement bandwidth SAT 6 MHz

SAT DVB 6 MHz

TV 250 kHz TV/DVB 6 MHz

FM 250 kHz

Measuring detector SAT Average value display

TV Maximum value display

FM Average value display

Voltage standing wave ratio > 6 dB

FM threshold SAT < 9 dB

Audio-IF bandwidth SAT 230 kHz/150 kHz

TV 230 kHz

FM 230 kHz

Audio Deemphasis SAT 50 µs

TV/FM 50 µs

Audio processing SAT FM audio processing 5.0 MHz…8.99 MHz in 10-kHz graduations

TV FM and Nicam in quasi-parallel audio mode

AM in parallel audio mode (L standard only)

Technical Data

10

TV B/G standard TT1 = 5.5 MHz, TT2 = 5.74 MHz

D/K standard TT1 = 6.5 MHz, TT2 = 6.26 MHz

I standard TT1 = 6.0 MHz

M/N standard TT1 = 4.5 MHz, TT2 = 4.72 MHz

M1 standard TT1 = 4.5 MHz

L standard AM 6.5 MHz, Nicam = 5.85 MHz

B/G standard Nicam = 5.85 MHz

I standard Nicam = 6.552 MHz

FM FM audio processing 48 MHz...858 MHz

Sound carrier measurement TV Standard B/G 5.5 MHz, 5.74 MHz,

5.85 MHz

D/K standard 6.5 MHz, 6.26 MHz

I standard 6.0 MHz, 6.552 MHz

L standard 6.5 MHz, 5.85 MHz

M/N standard 4.5 MHz, 4.72 MHz

M1 standard 4.5 MHz

Nicam decoder

Sound carrier distance TV 5.58 MHz with B/G, D/K, L standards

6.552 MHz with I standard

Nicam BER TV 0-4 x 10

-2

DVB-S modulation method

1)

QPSK

DVB-C modulation method

1)

64 QAM, 128 QAM, DOCSIS 64 QAM (MER and Offset only)

DVB-T modulation method

1)

OFDM, 2k, 8k, QPSK, 16 QAM, 64 QAM (Option)

DVB-S-MER

1)

-20 dB

DVB-C-MER

1)

-32 dB

DVB-T-MER

1)

-32 dB (Option)

DVB-S-BER pre-Viterbi

1)

0 – 2.8 x 10

-2

DVB-C-BER pre-Reed Solomon

1)

0 – 2.8 x 10

-2

DVB-T-BER pre-Viterbi

1)

0 – 2.8 x 10

-2

(Option)

DVB-S carrier-offset-measurement

1)

DVB-C carrier-offset-measurement

1)

DVB-T carrier-offset-measurement

1)

(Option)

LNB supply voltage SAT 0, 10 V...20 V, max. 500 mA

External feeding voltage TV 0, 5 V...9.9 V, max. 100 mA

LNB control SAT 22 kHz, 60 Hz, DiSEqC™, Simple DiSEqC™

SCART output 1 V

pp

/75 Ohm

1) For measuremts exceeding 100 dBµV please use the enclosed attenuation plug, as otherwise no video representation and no MER

and BER measurements are possible.

Control Elements and Indicators

11

Control Elements and Indicators

Control Elements

The following is displayed on the two-row 16 digit LC display, depending

on the mode:

• the channel set,

• the frequency set,

• the function called up,

• the mode,

• the measured level

• the measured value

TFT Colour Screen

The colour screen has a diagonal of 4“, a resolution of 238 x 480 pixel,

and a luminance of 250 cd/m².

Connections (right hand side)

(AV) Scart connections without inputs, RS 232 interface,,

supply voltage DC – for the power supply unit delivered only

FR: 954.0 MHz SAT

LEV: 40.0 dBuV D

TFT colour screen LC display HF input socket LED volume control Keyboard

Short Cut Overview

12

Short Cut Overview

Key Brief description of the various functions

SAT/DVB-S TV/DVB-C/*DVB-T FM

SAT/TV

Change-over to

TV reception

Change-over

SAT reception

Change-over to

TV reception

- Diminish current values

+ Elevate current values

0-9 Numeric character entry

./S Decimal point for

numeric character entry

• Decimal point for

numeric character input

• Special channel call up

Decimal point for

numeric character input

ENTER Confirm numeric character entry

2ndF + key Call-up of the second command level

FM Change-over to FM

Sat-Ctrl Call-up of DiSEqC™ menu /

LNB

Menu / Remote feeding Call-up of DiSEqC™

menu / remote feeding

LNB LNB voltage menu and

current measurement

Remote feeding voltage and

current measurement

Remote feeding voltage

and current

measurement

Ch-Freq

No function

• Call-up of frequency

menu

• Change-over from

channel display to

frequency display and

reverse

No function

Std DVB-S/analogue change--

over

DVB-C/*DVB-T/analogue-

change-over

standard-change-over

No function

DVB

DVB-S measurement

MER, BER, OFFSET

*MPEG programme

selection

DVB-C-/*DVB-T

measurement

MER, BER, OFFSET

*MPEG programme

selection

No

SC (Subcarrier) sound carrier menu, sound carrier measurement No function

Scan Frequency-independent

satellite search

No function No function

Level ♫ Switch-on level-dependent acoustic signal with bargraph display

Spect Spectrum analysis

Setup Adjustment of instrument settings

* only if option is provided

Connections

13

Connections

RF Input Socket

The received signal of the antenna or of the cable network is fed in here

(BNC coaxial socket).

The remote feeding voltage (for LNB) is adjustable from 5 V

DC

to 20 V

DC

and can be switched off. When the LNB voltage is switched on, the LED

next to the RF input socket flashes.

Make sure that there are

• no voltage level over 120 dBµV,

• no positive DC voltage over 22 V

DC

,

• no negative DC voltage and

• no AC voltage

adjacent to the RF input socket.

Non-compliance with these warning notices may destroy the input circuit.

External DC Voltage Supply

The MSK 25 may either be mains operated or battery operated (batteries

built-in). The external voltage supply is carried out via the DC socket at

the right side of the MSK 25 box, with the wall power supply and the

charger, both included in delivery. Sustained continuous operation (incl.

MPEG option) is possible in case of an LNB power consumption of no

more than max. 300 mA. Additional current will be drained from the

battery built-in if the power consumption is higher than that.

Make sure that

• only the wall power supply included in delivery is used.

• the wall power supply is not connected to the instrument but for

voltage feed. Otherwise the battery of the MSK 25 will be discharged!

Scart Output

The video and audio signals are emitted on the Scart socket on the right

hand side of the MSK 25, for rating purposes on an external monitor.

There are no inputs!

Misallocations of the connections may cause damage or destruction

of the instrument!

RS 232 Interface

Software updates are possible via RS 232 interface.

Commissioning

14

Commissioning

Switching-Up

• Connect the instrument to the mains with the wall power supply.

• Turn the on/off switch to the right.

• Adjust the desired volume.

The LC display will then indicate the particular software version for appr.

1 second.

Thereafter the LC display will indicate the loading capacity of the battery

for appr. 3 seconds.

One segment comes up to appr. 20% of the overall capacity (3.4 Ah).

Now, feed in the reception signal of the receiving installation in the RF

input socket.

LC display:

• channel

• mode

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

measurement)

Select the desired mode by pressing [TV/SAT]

Switching-Off

Turn the on/off switch counter-clockwise.

Software V2.0

SN: 000222

ACCU [−−−−−]

CH: .02. TV

LEV: 48.5dBuV A

Commissioning

15

Setup-Menu

The basic setting (status of the MSK 25 after switching it on) can be set in

the Setup menu.

Factory Setting on Delivery

Parameter Setting

POWER ON TV

LNB DC OFF

LEVEL dBµV

Low Level Mute ON

Setup Menu Setting

Setup Menu Call-Up

Press [2ndF] and [SETUP].

The particular mode (TV, SAT, FM) is selected and taken-over by

pressing either [1], [2] or [3]. The current setting is retained by pressing

[ENTER.]

1. Setup menu

The following requests appear:

Press either [1] or [2] to switch on/off the LNB voltage supply.

Press [ENTER] to retain the current setting.

2. Setup menu

Press either [1] or [2] to determine the measurement unit the level is to

be displayed with.

Press [ENTER] to retain the current setting.

3. Setup menu

Set or offset the mute function by pressing either [1] or [2]. Select „ON“ to

mute the MSK 25 until the input signal on the RF input exceeds

30 dBµV.

4. Setup menu

Press [ENTER] to retain the desired setting.

Unless the factory settings have been changed, the indication opposite is

displayed.

Basic setting

After setting the Low Level Mute, the 4th Setup menu will be exitted

automatically and the basic setting will be displayed.

POWER ON

1=TV 2=SAT 3=FM

LNB DC

1=OFF 2=ON

Level

1=dBµV 2=dBmV

LOW LEVEL MUTE

1=OFF 2=ON

CH: .07. TV

LEV:____.__dBµV

Commissioning

16

Mains Operation and Battery Operation

The MSK 25 may either be mains operated or be battery operated

(battery built-in).

Mains Operation

Only the wall power supply delivered may be used for power supply.

Connect it to the voltage supply socket on the right hand side of the

instrument.

Sustained continuous operation (incl. MPEG option) is possible in case of

an LNB power consumption of no more than max. 300 mA. Additional

current will be drained from the battery built-in if the power consumption

is higher than that.

In case of any longer-lasting placing-out-of-operation, connect the MSK

25 to the mains supply occasionally (trickle charge).

Make sure that the wall power supply is not connected to the instrument

but for voltage feed. Otherwise the battery of the MSK 25 will be

discharged!

Battery Operation

Battery operation is only possible if the battery is sufficiently charged.

Otherwise the MSK 25 cannot be switched on.

When completely discharged, the battery must immediately be

recharged, since otherwise it may be damaged or destroyed.

Charging begins automatically as soon as the instrument has been

connected to the mains supply. Battery supercharge is avoided with a

protective circuit.

When switching on the MSK 25, the loading capacity of the battery is

indicated for appr. 3 seconds.

The maximum operating time with a fully charged battery is appr. 2.5 hrs,

in case of an LNB supply current of 150 mA.

SAT measurement

17

SAT measurement

Standard Change-Over

In SAT mode, the MSK 25 receives

• analogue signals and

• DVB-S signals.

SAT Menu Standard Change-Over

[2ndF] [STD] calling up menu standard change-over:

[1] to [2] select standard

1 = analogue

2 = digital (DVB-S)

Examples

Calling up DVB-S standard

Press [2ndF] [STD]

The LC display indicates the following options:

• 1 = analogue standard

• 2 = digital (DVB-S) standard

When selecting ‚2‘ you will get to the symbol-rate-selection

The LC display indicates the following options:

Under the position 4=USER you can enter sample rates from 1,500 up to

32,000 ks and close with ENTER.

Standard menu

When you have selected an option, you will leave the standard menu and

the instrument will be set to DVB measurement.

The display indicates ‘D’.

Display for DVB-S measurement

✐

1=ANALOGUE

2=DVBS

FR:1288.0MHz SAT

LEV: 66.5dBuV D

À

1=27500 2=24500

3=22000 4= USER

SAT measurement

18

Frequency Display and Frequency Entry

To measure the level of a received signal, you must first enter the

frequency required. The LC display indicates the frequency and the level

measured. Frequency entry is possible from 920 MHz to 2150 MHz in

100 kHz steps.

SAT Menu Frequency Entry

[SAT/TV] Changing over to SAT reception

[0] to [9] Entering frequency

[+] [-] Varying frequency in 100 kHz steps

[ENTER] Confirming your entry

LC display:

• Frequency: 1288 MHz

• Mode: SAT

• Level: 66.5 dBµV A (A = analogue)

Example

Enter the frequency 1508 MHz by pressing [1] [5] [0] [8] [ENTER]

LC display:

• frequency: 1508 MHz

• mode: SAT

• level: 86.5 dBµV (A = analogue)

The indicaton „+“ or „–“ on the display means that the MSK 25 has not

been exactly tuned to the carrier required. Bei pressing either [+] or [-],

the frequency can be finetuned for optimum reception. This has been

achieved when a vertical line appears on the display.

Note

Press [ENTER] to complete the frequency entry.

The last frequency entry will be retained even after you have switched off

the MSK25, provided that the entry was carried out via numeric character

input ending with ‚MHz‘

FR:1288.0MHz SAT

LEV: 66.5dBuV A │

FR:1508.0MHz SAT

LEV: 86.5dBuV A │

✐

☞

À

SAT measurement

19

SAT Analogue Level Measurement

Once you have entered a frequency, the level is measured automatically

and displayed either in dBµV or dBmV (depending on the basic

configuration) on the LC display. The input level can be measured in the

range of 30 dBµV to 120 dBµV (-30 dBmV to 60 dBmV).

LC display:

• Frequency: 1508 MHz

• Mode: SAT

• Level measured: 86.5 dBµV A

Level Overflow and Level Underflow

The LC display indicates underflow at a level of < 30 dBµV.

The following indications appear on the display:

• frequency: 1508 MHz

• mode: SAT

• level: underflow

The LC display indicates overflow at a level of > 120 dBµV.

The following indications appear on the display:

• frequency: 1508 MHz

• mode: SAT

• level: overflow

Note

DVB-S signal levels can only be measured when the digital reception is

set.

SAT DVB-S Level Measurement

LC display when the DVB-S level is measured:

The change-over from the analogue measurement to the digital level

measurement is described in chapter ‚standard change-over‘

• Frequency 1236 MHz

• Mode: SAT DVB-S

• Level measured: 86.5 dBµV D

FR:1508.0MHz SAT

LEV: 86.5dBuV A │

FR:1508.0MHz SAT

LEV: __._dBuV A │

FR:1508.0MHz SAT

LEV: ¯¯˙¯dBuV A │

☞

FR:1236.0MHz SAT

LEV: 86.5dBuV D

SAT measurement

20

Locating Satellites

With the SCAN function, satellites, the exact transponder frequencies of

which are unknown, can be located. In doing so, the frequency range

from 1000 MHz to 2100 MHz is continuously scanned for received

signals. If signals are received, the reception level is displayed as a bar

graph. The measurement range may be adjusted to three different

sensitivity levels.

The level can be monitored with an acoustic signal, the pitch of which is

proportional to the received-signal level. The volume of the acoustic

signal can be adjusted with the volume regulator.

SCAN Menu

[2ndF] [SCAN] Changing over to SCAN mode

[-] [+] Change-over of the bar graph measurement range.

Level range 1: high input levels

Levelrange 2: medium input levels

Level range 3: low input levels

[2ndF] [2ndF] Exit

LC display:

• Level range 2: medium input level

• SAT mode

• Bargraph display

Example

Calling up SCAN mode:

• Press [2ndF] [SCAN].

• Move the antenna until there is a level tendency visible on the bargraph

display.

• Move the antenna until the maximum amplitude on the bargraph display

is reached.

• If necessary, diminish or elevate the sensitivity by pressing either [-] or

[+].

Exit:

• Press [2ndF] twice.

✐

LEV-Range:2 SAT

> ■■■■

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Kathrein MSK 25 Manuel utilisateur

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