GSS HDMT 1290 User manual

English
CLASS
KLASSE
HDMT 1290
Head-End Digital Modulator
Terrestrial
GSS
Grundig SAT Systems GmbH
Beuthener Strasse 43
D-90471 Nuremberg
Phone: +49 (0) 911 / 703 8877
Fax: +49 (0) 911 / 703 9210
E-mail: [email protected]
Internet: http://www.gss.de

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Contents
1 Safety regulations and notes .....................................................................................3
2 General information .................................................................................................4
2.1 Packing contents..........................................................................................4
2.2 Meaning of the symbols used........................................................................4
2.3 Technical data.............................................................................................4
2.4 Description .................................................................................................5
2.5 Software query............................................................................................6
2.6 How the TPS module works...........................................................................6
3 Assembly .................................................................................................................7
3.1 Installing the cassette....................................................................................7
3.2 EMC regulations..........................................................................................7
3.3 Connecting the cassette................................................................................8
4 The control panel at a glance ....................................................................................9
4.1 Menu items.................................................................................................9
4.2 Control panel..............................................................................................9
5 Programming .........................................................................................................10
5.1 Preparation...............................................................................................10
5.2 Notes on level setting.................................................................................10
5.3 Programming procedure Channel strips “A” and “B”.......................................11
5.4 Programming the cassette ..........................................................................13
Selecting the cassette .................................................................................13
Selecting the channel strip ..........................................................................14
Selecting channel / frequency setting...........................................................15
Setting the output channel...........................................................................15
Setting the output frequency........................................................................15
Switching the modulator off or on................................................................16
Adjusting the output levels of the channel strips .............................................16
Setting the input channel ............................................................................17
Setting the hierarchical modulation ..............................................................18
Setting the station filter ...............................................................................18
COFDM parameters...................................................................................20
Setting the output signal ............................................................................... 23
Setting the transmission parameters..............................................................24
Setting the transmitter identification..............................................................25
Stuffing.....................................................................................................25
Setting a substitute signal in the case of an incorrect input signal.....................26
Setting the transport stream ID and the ORGNET-ID .......................................27
Network Information Table (NIT)..................................................................27
Deleting a PID...........................................................................................28
Renaming a PID.........................................................................................28
Factory reset .............................................................................................29
Saving settings ..........................................................................................30
6 Final procedures.....................................................................................................30
7 Channel and frequency tables .................................................................................31

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1 Safety regulations and notes
• Assembly, installationand servicingshould becarried outby authorised
electricians.
 • Switchofftheoperatingvoltageofthesystembeforebeginningwithassem-
bly or service work or pull out the mains plug.
 • Donotperforminstallationandserviceworkduringthunderstorms.
 • Installthesystemsoitwillnotbeabletovibrate…
 - inadust-free,dryenvironment
 - insuchamannerthatitisprotectedfrommoisture,fumes,splashingwa-
ter and dampness
- somewhere protected from direct sunlight
- not within the immediate vicinity of heat sources
- in an ambient temperature of 0 °C to +50 °C. In case of the formation of
condensation wait until the system is completely dried.
 • Ensurethatthehead-endstationisadequatelyventilated.Donotcoverthe
ventilation slots.
 • Bewareofshortcircuits
 • Noliabilityisacceptedforanydamagecausedbyfaultyconnectionsor
inappropriate handling.
 • Observetherelevantstandards,regulationsandguidelinesontheinstalla-
tion and operation of antenna systems.
 • The standards IEC/EN/DINEN50083 and IEC/EN/DINEN60728 must
be observed.
 • For further information please read the assembly instructions for the head-
end station used.
• Test the software versions of the head-end station and the cassette and
update them if necessary. The current software versions can be found at
”www.gss.de”.
Take action to prevent static discharge when working on the device!
Electronic devices should never be disposed of in the household rubbish. In
accordance with directive 2002/96/EC of the European Parliament and the
European Council from January 27, 2003 which addresses old electronic and
electrical devices, such devices must be disposed of at a designated collection
facility. At the end of its service life, please take your device to one of these
public collection facilities for proper disposal.

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2 General information
2.1 Packing contents
1 Cassette HDMT 1290
2 HF cables
1 CD (assembly instructions)
1 Brief assembly instructions
2.2 Meaning of the symbols used
Important note
—> General note
 •  Performingworks
2.3 Technical data
The devices meet the following EU directives:
 2006/95/EC,2004/108/EC
The product fulfils the guidelines and standards for CE labelling.
Unless otherwise noted all values are specified as “typical”.
HF input
Channels: ...........................................................C5…C12,C21…C69
Frequency range:................................... 177.5…226.5,474…858MHz
Input level: ...............................................................60dBμV…80dBμV
Loop through output gain..................................................................0 dB
Symbol rate ............................................................... acc. to EN 300744
COFDM modulator
Signal processing: ..........................................................DIN EN 300744
Transmission modes:................................................................. 2k,4k,8k
Types of modulation:........................................ QPSK,16QAM,64QAM
Code rates:.............................................................. 1/2,2/3,3/4,5/6,7/8
Guard intervals:............................................................ 1/4,1/8,1/16,1/32
HF output
Frequency range:...............................................42.0MHz…860.0MHz
Channels: ...........................................................C5…C12,C21…C69

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Output level: ............................................................................. 96 dBμV
Output impedance:......................................................................... 75 Ω
Connections
HF inputs: ...........................................................................2 IEC sockets
HF lopp-through outputs: ......................................................2 IEC sockets
HF output: ...........................................................................1 IEC socket
Connection strip (10-pin):...................for supply voltages and control circuits
RS-232 socket: ..................................... serial interface for software update
2.4 Description
The cassette converts two incoming COFDM -modulated signals into two out-
going COFDM-modulated signals with free selectable frequency . Individual
stations can be deleted. The cassette has two DVB-T inputs and one HF output.
General
The cassette is equipped with two channel strips (“ A ” and “ B ”). The channel
stripsconsistoftheDVB-Ttuners,thedigitalsignalpreparationunitsandthe
output converter. The channel strips are indicated in the head-end station dis-
play with “Bx …A” and “Bx …B”. The control of the cassette takes place via
the control unit of the head-end station.
Two LEDs provide an indication of the input signal quality based on their col-
our and indicate if the respective channel strip is switched on (LED illuminates)
or off. The integrated TPS module (Transport Stream Processing) processes the
data of the transport streams.
The COFDM modulated HF output signals are sent through the HF output of the
cassette to the output collector. The common output level of the channel strips
can be set at the output collector.
 Whenthehead-endstationisswitchedon,thetwo-lineLCdisplayshowsthe
software version of the control unit. To operate this cassette the software ver-
sion of the control unit must be “V 41” or higher. You can find the current op-
eratingsoftwareforthecontrolunitandthecassette,thesoftware“BE-Flash”
and the current assembly instructions on the website “www.gss.de”.
The cassette is designed for use in the following head-end stations:
STC1200,STC316,STR19-8 and PST 19-1.

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2.5 Software query
Control unit
 If necessary, you can activate the indication of the software version of the
control unit manually:
 • Pressanytwokeysonthecontrolunitofthehead-endstationsimultaneously
untilthedisplaygoesdarkandthesoftwareversion,e.g.“V 41” appears.
2.6 How the TPS module works
 After decoding COFDM-modulated signals, the demodulated data streams
can be accessed via the integrated TPS module. These data streams, also
calledtransportstreams,containseveralstationsinalltheircomponents(vid-
eo,audio,dataandserviceinformation),whichcanbechangedusingtheTPS
module.
Station filter
 Individual stations can be deleted. This reduces the data rate and, conse-
quently,theoutputsymbolrate.
Stuffing
 Thetransportstreamispaddedusingwhatisknownaszerodata.Thisensures
a steady and constant output data rate.
Changing the Transport stream and ORGNET-ID
The transport stream ID can be changed. If the stations of a transponder are
splitintothetransportstreamsofthechannelstrips”A”and”B”,oneoftheboth
transport streams a new identification must be allocated to realise the channel
search of the settop boxes connected without mistakes.
If the ORGNET-ID is changed a new NIT must be generated.
Changing the NIT
The transport stream contains data in the form of tables which the receiv-
ers evaluate and require for convenient use. The TPS module can adjust the
“Network Information Table” (NIT) to accommodate the new station data. The
“NIT” contains data which is required by the set-top boxes connected to the
cable network for the automatic search feature.

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3 Assembly
3.1 Installing the cassette
– Ensure the head-end station is mounted so it will not be able to vibrate.
Avoid,forexample,mountingthehead-endstationontoaliftshaftorany
other wall or floor construction that vibrates in a similar way.
– Before installing or changing a cassette unplug the power cable from the
mains power socket.
 • Removethefasteningscrews1of an unoccupied slot from the bracket of
the head-end station.
 • Insertthecassetteinthisslotandpushitintothehousing.
 • Alignthecassetteandapplyslightpressuretoconnectittotheconnections
of the board and the HF bus bar.
 • Fastenthecassettewiththescrews1.
0°
1
1
KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE HYBRID-VERSTÄRKER
MESSAUSGANG
–20 dBµV
AUSGANG
max. 106 dBµV
ACHTUNG!
Vor dem Kassettenwechsel
unbedingt denNetzstecker ziehen.
CAUTION!
Before changing cassettes remove
mains plug.
GrundigSATSystems
3.2 EMC regulations
To comply with the current EMC regulations, it is necessary to connect the lines
leading in and out of the head-end station using cable terminals.
When mounting the cassette in a STR 19-8 or PST 19-1 head-end station which
is installed in a 19” cabinet, make sure the connections leading in and out for
the 19” cabinet are made using cable terminals.
CLASS
KLASSE
The attenuation of shielding of the connection lines for ASI and antenna must
meet the requirements for “Class A”.

- 8 - HDMT 1290
 • Inserttherequirednumberofcableterminalsintheopeningsprovidedin
the head-end station or in the 19 ” cabinet.
—> Cable terminals are not included in the scope of delivery.
Tighten the nuts of the cable terminals until the teeth on the lock washers put un-
der have penetrated the exterior coating and a good connection is made between
the housing / 19” cabinet and cable terminals.
3.3 Connecting the cassette
76432 51
1HF input (channel strip “ B ”)
2 Status LED of the channel strip “ B ”
3 Loop-through output of HF input 1
4 HF input (channel strip “ A ”)
5 Status LED of the channel strip “ A ”
6 Loop-through output of HF input 4
7 D-SUB socket “RS 232“
The operating software of the cassette can be updated via the 9-Pin D-SUB
socket “RS-232” using a PC or notebook and the software “BE-Flash”.
You can find the current operating software on the website “www.gss.de”.

- 9 - HDMT 1290
4 The control panel at a glance
4.1 Menu items
Programme the cassette using the buttons on the control unit of the head-end
station. The two-line display of the control unit then shows the menus.
The parameters and functions to be set are underlined.
Use the key to select the following main menu items:
– Channel strip
– Channel / frequency setting
– Output channel / output frequency
– Output level
– Input channel
– Hierarchical modulation
– Station filter
– Output signal
– Transmission parameters
– Station identification
– Stuffing
– Substitute signal
– Transport stream and ORGNET-ID
– Network Information Table (NIT)
– Network/operator identification
– Deleting a PID
– Renaming a PID
– Factory reset
4.2 Control panel
The key pad on the head-end station is used to scroll through the menus step-
by-step:
scrolls forward through the menus.
select parameters in the menus.
setvalues,initiateactions.
selects sub-menus.
scrolls backward through the menus.
saves all entries.
BE-Remote V41
please wait . . .

- 10 - HDMT 1290
5 Programming
5.1 Preparation
 • Test the software versions of the head-end station and the cassette and up-
date them if necessary.
The current software versions can be found on the website ” www.gss.de ” .
 • ConnectthetestreceivertotheHFoutputorthetestoutputofthehead-end
station.
 • Settheoutputchannel/outputfrequencyofthe cassette (page 15) and
adjust the TV test receiver to this channel / frequency.
 • Switch on the channel strip (modulator) if necessary ( page 16). For each
channelstrip,thereisastatusLED (2/ 5) which indicates if the channel
strip is switched on.
76432 51
 • Balancetheoutputlevelsofthechannelstrips“A” and “B” if the difference
in level is ≥ 1 dB (page 16).
5.2 Notes on level setting
In order to prevent interference within the head-end station and the cable sys-
tem,theoutputlevelofthecassettemustbedecreasedby8dBcomparedto
analogue cassettes.

- 11 - HDMT 1290
5.3 Programming procedure Channel strips “A” and “B”
Bx 4A
Channel
OUTPUT
Channel / Freq.
A / B
Bx 4A
C21
OUTPUT
on on / off
Bx 4A
-3 dB
LEVEL
0… -10 dB
Bx 4A
Filter
PROGRAM
off
01/10Bx 4A TV +
Das Erste
Programme entfernen / hinzufügen
Removing / activating stations
nächster Service (Programm)
next service (station)
▶
◀/
on -> off
Bx 4A
8MHz QAM64
COFDM-MODE
POS
▶
◀/
5…8MHz QPSK…QAM64
positiv / negativ
positive / negative
Bx 4A
8k C7/8
COFDM-MODE
G1/32
▶
◀/
2 … 8k C1/2 … C7/8
G1/4 … G 1/32
Bx 4A
CELL 0x0000
COFDM TPS
off
▶
◀/
0x0000 … 0xFFFF
on / off
Bx 4A
34363 (32502)
STUFFING
Bx 4A
Null Packets
FAILURE
Null Packets … Single Carrier
Bx 4A
off
NIT
=> Make ▶
on / off Make
Bx 4A
PID 0x0000
DROP
off
▶
◀/
Bx 4A
0x0000 –> 0000
REMAP
off
▶
◀/
on / off
▶
◀/
on / off
▶
◀/
B
BE–Remote
please wait …
V 41
Box 4
V 13
DVBT-TPS
COFDM – – –
Bx 4A
V 13
DVBT-TPS
COFDM C21
+
t > 10 s
A
▶
◀/
Ein / On
M
M
M
M
B
A
▶
Bx 4A
Defaults
FACTORY
=>
Bx 4A
STORE
FACTORY
=> M
auf Werkseinstellung
zurücksetzen und speichern
reset to factory defaults
and store
M
M
M
M
M
M
M
M
M
M
M
M
M
M
▶
Box 1
..............
..............
..............
Bx 1A
C5-12,S3-24
TWIN-SAT
C07
Böx 4
C5-12,S3-24
TWIN-SAT
C07
Box 5
..............
..............
..............
▶
◀/Bx 4A
0x0001,0100
TS/ONID
off
▶
◀/
off / on
Bx 4A
C66 0
INPUT
OK
Bx 4A
Priority: high
INPUT
Bx 4A
C66 (834.0)
INPUT
OK
high / low
-64 … +64
◀
▶
M
Page 12

- 12 - HDMT 1290
Bx 4A
Channel
OUTPUT
Channel / Freq.
A / B
Bx 4A
C21
OUTPUT
on on / off
Bx 4A
-3 dB
LEVEL
0… -10 dB
Bx 4A
Filter
PROGRAM
off
01/10Bx 4A TV +
Das Erste
Programme entfernen / hinzufügen
Removing / activating stations
nächster Service (Programm)
next service (station)
▶
◀/
on -> off
Bx 4A
8MHz QAM64
COFDM-MODE
POS
▶
◀/
5…8MHz QPSK…QAM64
positiv / negativ
positive / negative
Bx 4A
8k C7/8
COFDM-MODE
G1/32
▶
◀/
2 … 8k C1/2 … C7/8
G1/4 … G 1/32
Bx 4A
CELL 0x0000
COFDM TPS
off
▶
◀/
0x0000 … 0xFFFF
on / off
Bx 4A
34363 (32502)
STUFFING
Bx 4A
Null Packets
FAILURE
Null Packets … Single Carrier
Bx 4A
off
NIT
=> Make ▶
on / off Make
Bx 4A
PID 0x0000
DROP
off
▶
◀/
Bx 4A
0x0000 –> 0000
REMAP
off
▶
◀/
on / off
▶
◀/
on / off
▶
◀/
B
BE–Remote
please wait …
V 41
Box 4
V 13
DVBT-TPS
COFDM – – –
Bx 4A
V 13
DVBT-TPS
COFDM C21
+
t > 10 s
A
▶
◀/
Ein / On
M
M
M
M
B
A
▶
Bx 4A
Defaults
FACTORY
=>
Bx 4A
STORE
FACTORY
=> M
auf Werkseinstellung
zurücksetzen und speichern
reset to factory defaults
and store
M
M
M
M
M
M
M
M
M
M
M
M
M
M
▶
Box 1
..............
..............
..............
Bx 1A
C5-12,S3-24
TWIN-SAT
C07
Böx 4
C5-12,S3-24
TWIN-SAT
C07
Box 5
..............
..............
..............
▶
◀/Bx 4A
0x0001,0100
TS/ONID
off
▶
◀/
off / on
Bx 4A
C66 0
INPUT
OK
Bx 4A
Priority: high
INPUT
Bx 4A
C66 (834.0)
INPUT
OK
high / low
-64 … +64
◀
▶
M
Page 11

- 13 - HDMT 1290
5.4 Programming the cassette
—> Pressing the button for longer than 2 seconds cancels the pro-
gramming procedure. This takes you back to the programme item “Select-
ing the cassette” from any menu. Any entries that have not been saved
are reset to the previous settings.
—> Entries in the menus can be saved by pressing the key. You are taken
back to the “Selecting the cassette” menu item.
 • Switchonthehead-endstation
—> The display shows the software version (e.g. V 41)
—> The processor reads the cassettes ‘ data (approx. 10 seconds).
BE–Remote
please wait …
V 41
t > 10 s
Ein / On
Selecting the cassette
B
o
x
1
.
............
.
..............
.............
.
Bo
x
5
..............
..............
..............
+
Box 4
V 13
DVBT-TPS
COFDM – – –
 • Selectthe cassette you want to programme (e.g. Box 4) by repeatedly press-
ing the button if necessary.
—> The display shows e.g. the menu “Box 4 DVBT-TPS“ :
“Box 4” stands for slot 4
”DVBT-TPS” Type of cassette
”V 13” Software version of the cassette

- 14 - HDMT 1290
Selecting the channel strip
Selecting channel strip “A”
 • Pressthe button to select channel strip “A”.
Box 4
V 13
DVBT-TPS
COFDM – – –
Bx 4A
V 13
DVBT-TPS
COFDM C21
—> Button selects the previous cassette.
Selecting channel strip “B”
Box 4
V 13
DVBT-TPS
COFDM – – –
Bx 4A
V 13
DVBT-TPS
COFDM C21
Bx 4B
V 13
DVBT-TPS
COFDM C22
Box 5
..............
..............
..............
Box 3
..............
..............
..............
 • Pressthe button to select channel strip “B”.
—> The display shows e.g. the menu “Bx 4B DVBT-TPS“ :
“Bx” stands for cassette(box),
“4” for slot 4,
“B” for channel strip “B”
”DVBT-TPS” Type of cassette
”C 22” adjusted channel
—> Button selects channel strip “A”.
—> Button selects the following cassette.
 • Pressthe button.
—> The “Selecting channel / frequency setting” – “OUTPUT” menu is acti-
vated.

- 15 - HDMT 1290
Selecting channel / frequency setting
 Inthismenu,youcanselectthechannelorfrequencysettingfortheadjustment
oftheHFoutput.ThechannelsettingcoverstherangeofchannelsC5…C12
andC21…C69,thefrequencysettingcoverstherangefrom42.0MHzto
860.0MHz.
Bx 4A
Channel
OUTPUT
 • Use to select channel setting “Channel” or frequency setting “Freq.”.
 • Pressthe button.
—> The “Setting the output channel” or “Setting the output frequency” –
“OUTPUT” menu is activated.
Setting the output channel
 Inthismenuyousettheoutputchannelofthechannelstrip(C5…C12,C21
…C69).Additionallythemodulatorofthechannelstripcanbeswitchedoff
or on ( page 16 ).
Bx 4A
C21
OUTPUT
on
 • Use the buttons to set the output channel.
Setting the output frequency
In this menu you set the output frequency of the channel strip (42.0…860.0MHz) .
Additionally the modulator of the channel strip can be switched off or on
( page 16 ) .
Bx 4A
850.00MHz
OUTPUT
on
 • Usethe buttons to place the cursor under the digit to be set for the
frequency display then use to set the output frequency wished.

- 16 - HDMT 1290
Switching the modulator off or on
Bx 4A
C21
OUTPUT
on
 • Toswitchoffthemodulatorplacethecursorunder“on” using the button
and switch “off” the modulator of the channel strip using the buttons.
—> The status LED is switched off (see also page 10).
—> The switched off modulator is indicated by “ - - - “ in the display instead
of the channel or frequency display.
 • Inthecasethemodulatorisswitched“off” use the to switch it “on”.
 • Pressthe button.
—> The “Adjusting the output levels of the channel strips” – “LEVEL” menu is
activated.
Adjusting the output levels of the channel strips
This menu item is used to set the output levels of the modulators of the channel
strips “A” and “B” to the same value.
Bx 4A
-3 dB
LEVEL
 • Measureandnotedowntheoutputlevelofthechannelstrip.Toadjustthe
output level to the output levels of the other cassettes please pay attention
to chapter 6 “Final procedures”.
 • Byrepeatedlypressingthe button scroll back to the “Selecting the
channel strip” menu.
 • Selecttheotherchannelstrip (page 14) and set the following menu items:
 • “Selectingchannel/frequencysetting”(page15).
 • “Settingtheoutputchannel”or“Settingtheoutputfrequency”( page 15).
 • Switchonthemodulatorifnecessary( page 16).
 • Measureandnotedowntheoutputlevel.
 • Activatethe “LEVEL” menu of the channel strip with the higher output level.
 • Bypressi ng adjust the higher output level of the one channel strip
to the lower output level of the other channel strip incrementally (“0 ” …
“ –10 dB”).

- 17 - HDMT 1290
 • Pressthe button.
—> The menu “Setting the input channel” – INPUT” is activated.
Setting the input channel
If three dots “ …”appearinthesecondlineofthedisplay,thecassetteisinthe
“station search” mode. Please wait until the process has finished.
 OncetheHFreceiverhassynchronisedtotheinputsignal,“OK” is displayed.
If “– –” appears in the second line of the display, there is no input signal
present. Check the configuration of the antenna system and the head-end sta-
tion as well as the preceding settings of the cassette .
Bx 4A
C66 0
INPUT
OK
Bx 4A
C66 (834.0)
INPUT
OK Ï
Å
 • U se to set the desired input channel.
 • Ifnecessaryusethe button to activate the menu “Fine tuning” (“ 0 ” is dis-
played additionally).
 • U se for fine tuning the input channel .
 Inadditiontotheindicatorinthedisplay,thereisalsoastatusLEDwhichindi-
cates the quality of the received transport stream :
LED indicator Indication
Green Signal quality is good
Red No signal
Off The channel strip (modulator)
is switched off
2Status LED of the channel strip “ B ”
5 Status LED of the channel strip “ A ”
 • Toreturntothemainmenupressthe button.
2
5
Bx 4A
Channel
OUTPUT
Channel / Freq.
A / B
Bx 4A
C21
OUTPUT
on on / off
Bx 4A
-3 dB
LEVEL
0… -10 dB
Bx 4A
Filter
PROGRAM
off
01/10Bx 4A TV +
Das Erste
Programme entfernen / hinzufügen
Removing / activating stations
nächster Service (Programm)
next service (station)
▶
◀/
on -> off
Bx 4A
8MHz QAM64
COFDM-MODE
POS
▶
◀/
5…8MHz QPSK…QAM64
positiv / negativ
positive / negative
Bx 4A
8k C7/8
COFDM-MODE
G1/32
▶
◀/
2 … 8k C1/2 … C7/8
G1/4 … G 1/32
Bx 4A
CELL 0x0000
COFDM TPS
off
▶
◀/
0x0000 … 0xFFFF
on / off
Bx 4A
34363 (32502)
STUFFING
Bx 4A
Null Packets
FAILURE
Null Packets … Single Carrier
Bx 4A
off
NIT
=> Make ▶
on / off Make
Bx 4A
PID 0x0000
DROP
off
▶
◀/
Bx 4A
0x0000 –> 0000
REMAP
off
▶
◀/
on / off
▶
◀/
on / off
▶
◀/
B
BE–Remote
please wait …
V 41
Box 4
V 13
DVBT-TPS
COFDM – – –
Bx 4A
V 13
DVBT-TPS
COFDM C21
+
t > 10 s
A
▶
◀/
Ein / On
M
M
M
M
B
A
▶
Bx 4A
Defaults
FACTORY
=>
Bx 4A
STORE
FACTORY
=> M
auf Werkseinstellung
zurücksetzen und speichern
reset to factory defaults
and store
M
M
M
M
M
M
M
M
M
M
M
M
M
M
▶
Box 1
..............
..............
..............
Bx 1A
C5-12,S3-24
TWIN-SAT
C07
Böx 4
C5-12,S3-24
TWIN-SAT
C07
Box 5
..............
..............
..............
▶
◀/Bx 4A
0x0001,0100
TS/ONID
off
▶
◀/
off / on
Bx 4A
C66 0
INPUT
OK
Bx 4A
Priority: high
INPUT
Bx 4A
C66 (834.0)
INPUT
OK
high / low
-64 … +64
◀
▶
M

- 18 - HDMT 1290
 • Pressthe button.
—> The menu “Setting the hierarchical modulation” – “INPUT Priority:” is
activated.
Setting the hierarchical modulation
 Inorder toattainwithlessfield strengtha greater rangefor broadcasters,
withDVB-Tso-called“hierarchicalmodulation”canbeused.Inthisprocess,
several data streams are modulated onto a DVB-T data stream using “Quad-
rature Amplitude Modulation” (QAM). The robust “High Priority” data stream
(HP) with a lower data rate is modulated onto the more sensitive “Low Priority”
datastream,whichpossessesahigherdatarate.If“hierarchicalmodulation”
isusedbythetransmission,ingoodreceptionconditions,thereceiverscanre-
ceivebothdatastreams;inpoorerreceptionconditions,onlythe“HP”portion.
Bx 4A
Priority: high
INPUT
• Bypressing set to “high “ or “low “ (not relevant in the case of standard
modulation).
 • Pressthe button.
—> The menu “Setting the station filter ” – “PROGRAM” is activated.
Setting the station filter
The default setting for the station filter is “off”. In this menu you define the sta-
tions received to be transmitted. If stations are deactivated the output data rate
decreases.
If the station filter is switched off (factory default) all stations of the transport
stream passes the station filter. As soon as the station filter is activated all sta-
tions are inactive and can be added to the transport stream selectively.
Bx 4A
Filter
PROGRAM
off
01/10Bx 4A TV +
Das Erste

- 19 - HDMT 1290
 • Press the button.
 —> Allstations(services)fromthechannelstripwillberead,andthendis-
played with name and station type.
 —> Ifnostationisfound,thefollowingmessagewillappearinthedisplay:
“FILTER no Service”.
  Inthiscase,checktheconfigurationoftheantennasystemandhead-end
station,aswellasthepreviouslyadjustedsettingsforthecassette.
—> The display shows e.g.: Bx 4A TV + 01/10
Das Erste
Meaning of the indicators in the example:
“Bx 4A”  Slot4,channelstrip“A”
“ TV ” TV channel type
“ + ” The currently selected station is activated.
“ 01/10 ” The 1st of 10 stations is being displayed.
“ Das Erste ” Station name
Further possible terms displayed:
“ RA ” Radio channel type
   Forradiostations,theback ground of the screen of the connected TV
or test receiver is darkened.
“ – ” The currently selected station is deactivated.
“ *” The star means that the TV or radio station selected is scrambled.
—> If a service number (e.g. “131”) appears instead of “TV” or “RA”,this
indicates that an unnamed station or an undefined data stream is being
received.
 • Usethe buttonstocallupthestationsinsequentialorder,thenuse
to activate (indicated by “ +”) or to deactivate them (indicated by
“ –”).
Factory default: All stations are deactivated.
 • To save changes and to activate the station filters press the button.
—> The display shows “PROGRAM Filter on”.
 —> IfstationsareactivatedthecorrespondingPIDs(audio,video,text)are
inserted into the data stream and the PAT and SDT tables are updated.

- 20 - HDMT 1290
Test the status of the individual stations:
 Ifthefilterisswitchedon,pressthe button. In this mode you can test the set-
tings of the station filters again or change them if necessary.
—> In the “PROGRAM Filter on” menu the station filters switched on can
be switched “off” using the buttons if necessary.
 • Pressthe button.
— > The “Setting the output signal” – “COFDM-MODE” menu is activated.
Please take note of the tables below before setting the COFDM param-
eters.
COFDM parameters
The tables below show the dependence of the transmittable net data rate on
the settings of the COFDM parameters.
The conversion of the net data rate into the gross data rate displayed in the
”Stuffing” menu (page 25) is made according to the following formula :
204 x net data rate
Gross data rate =
188
Net data rate [kbit/s]
at a bandwidth of 8 MHz
Guard interval
Modulation Code rate 1/41/81/16 1/32
QPSK
1/24976 5529 5855 6032
2/36635 7373 7806 8043
3/47465 8294 8782 9048
5/68294 9216 9758 10053
7/88709 9676 10246 10556
16 QAM
1/29953 11059 11709 12064
2/313271 14745 15612 16086
3/414929 16588 17564 18096
5/616588 18431 19516 20107
7/817418 19353 20491 21112
64 QAM
1/214929 16588 17564 18096
2/319906 22118 23419 24128
3/422394 24882 26346 27144
5/624882 27647 29273 30160
7/826126 29029 30737 31668