Grundig PHDQ 2002 BC User Manual

CLASS

KLASSE

Grundig SAT SystEms

Assembly Instructions

CLASS

KLASSE

HDTV Digital QAM

PHDQ 2002 BC PHDQ 3002 BC

PHDQ 4002 BC PHDQ 5002 BC

KLASSE

CLASS

GSS Grundig SAT Systems GmbH

Assembly Instructions

English

Beuthener Straße 43 D-90471 Nuremberg

Phone: +49 (0) 911 / 703 8877 Fax: +49 (0) 911 / 703 9210 Email: info@gss.tv Internet: http://www.gss.tv

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Contents

1 Safety regulations ...............................................................................................3

2 General information ............................................................................................3

2.1 Packing contents .................................................................................... 3

2.2 Technical data ....................................................................................... 4

2.3 Description ........................................................................................... 5

2.3.1 Manual display of the software version .......................................... 6

2.3.2 How the TP module works ............................................................ 6

2.3.3 Explanation of the term “symbol rate” ............................................ 7

3 Assembly ............................................................................................................ 8

3.1 Installing the Cassette ............................................................................. 8

3.2 Connecting the Cassette ......................................................................... 8

4 The operator control panel at a glance ................................................................. 9

4.1 Menu items ........................................................................................... 9

4.2 Operator control panel ........................................................................... 9

5 Programming .................................................................................................... 10

5.1 Preparation ..........................................................................................10

5.2 The menus at a glance ..........................................................................11

5.2.1 The menu of channel strip B .........................................................12

5.3 Cassette programming ..........................................................................13

Selecting the Cassette ...........................................................................13

Switching the channel strip.....................................................................13

To query software versions: ...................................................................14

Setting the output channel (only Bx…A) ...................................................14

Modulator settings (only Bx…A) .............................................................16

Setting output level of the channel strips (only Bx…A) ................................16

Producing a QAM signal for testing (only Bx…A) .....................................17

Inverting the user signal (only Bx…A) ......................................................17

QAM monitoring (only Bx…A) ...............................................................18

Setting the LNB oscillator frequency ........................................................18

Setting the input symbol rate and the DVB mode ......................................19

Setting the input frequency (transponder frequency) ................................. 20

Setting the QAM modulation value (only Bx…A) ......................................21

Setting the stuffing (only Bx…A) ............................................................. 22

Saving settings .................................................................................... 23

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1 Safety regulations

Important

• Assembly, installation and servicing must be carried out by an authorised electrician.

• Switch off operating voltage before the start of assembly or service work or pull out the mains plug.

• Install the system …

- in a dust-free, dry environment

so that it is protected from moisture, vapours, splashing water and damp

- somewhere protected from direct sunlight

- away from the immediate vicinity of heat sources

- at an ambient temperature of < 50 °C.

•

Make sure the device is adequately ventilated.

Do not cover the ventilation slots.

• Beware of short circuits!

• No liability is accepted for damage caused by faulty connection or inexpert handling.

• Observe the relevant norms, regulations and guidelines on the installation and operation of antenna systems.

•

Earth the SAT receiver using the equipotential bonding rail in accordance with

DIN EN 50083 and VDE 0855.

• Do not perform installation and service work during thunderstorms.

Take action to prevent static discharge when working on the device.

2 General information

2.1 Packing contents

1 Cassette PHDQ 2002 BC or PHDQ 3002 BC or PHDQ 4002 BC or PHDQ 5002 BC 2 HF connection cables 1 Assembly instructions (on CD) 1 Measuring log

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2.2 Technical data

The devices meet the following EU directives:

73/23/EEC, 89/336/EEC

The product fulfils the guidelines and standards for CE labelling.

HF input: Frequency range: 950 … 2150 MHz

Frequency raster: 1 MHz Level range: 35 dBµV … 80 dBµV DVB-S modes: DVB-S 1/2 , 2/3 , 3/4 , 5/6 , 7/8 DVB-S2 modes: QPSK 1/2 , 3/5 , 2/3 , 3/4 , 4/5 , 5/6 , 8/9 , 9/ 8PSK

/5 , 2/3 , 3/4 , 5/6 , 8/9 , 9/ Symbol rate DVB-S: QPSK: 2 … 45 MSymb/s Symbol rate DVB-S2: QPSK: 10 … 30 MSymb/s 8PSK: 10 … 31 MSymb/s

HF output: PHDQ 2002 BC

Frequency range: 60 MHz … 86 MHz

PHDQ 3002 BC

Frequency range: 112 MHz … 306 MHz

PHDQ 4002 BC

Channels: S21 … S41 Frequency range: 306 MHz … 466 MHz Channel raster: 8 MHz

PHDQ 5002 BC Channels: C21 … C69

Frequency range: 474 MHz … 858 MHz Channel raster: 8 MHz

Output level: Typ. 90 dBµV Output impedance: 75 Ω, nominal

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Connections:

SAT inputs: 2 F-connectors HF output: 1 IEC socket, female Connection strip (10-pin): Socket RS 232:

For supply voltages and control circuits Update interface

2.3 Description

The Cassettes convert two QPSK lated data flow.

The Cassettes are controlled via the head end. Each Cassette

-modulated data flows into one QAM-modu-

has two inputs and one HF output, as well as an integrated multi-transport flow processor for stuffing, PID pass, drop and service filtering. For these Cassettes, information from a barker channel can be added or exchanged with a transport flow (MTP function, Drop- and service filter). For this purpose, there are two autonomous reception tuners and one modulator on which the modified transport flow can be transmitted as a QAM-modulated signal. The SDT and PAT tables are automatically generated. All data relevant to the operation of the Cassette is registered in a logbook with a maximum of 500 entries. The operating software of the Cassette can be actualised via an external 9-pin SUB-D-socket, using a PC or notebook, (software “

BE-Flash

”) or settings in the channel strips “A” (service channel) and “B” (barker channel) of the Cassette (PC software “ rent operating software of the Cassettes on the website “

MTP

”, component of software PSW 1000).

You can find the cur-

http://www.gss.tv

”. The prepared input signals are transmitted to the HF output collector of the head end via the HF output socket. The output level of the Cassettes can be set with the level regulator (max. –20 dB) at the output collector of the head end. After the head end has been switched on, the software version of the control unit is displayed briefly in the two-line LC display and afterwards the type of Cassette of the first slot. Approximately five minutes after the last button has been pressed, the software version of the control unit is displayed. The Cassettes are designed for use in the following head ends: – PSU 12 – PSU 8 – PGT 8

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2.3.1 Manual display of the software version

If necessary, you can call up the display of the software version of the control unit manually:

• Hold down any two keys of the control unit simultaneously until the display

goes dark and

the software version, e.g. “

V. 34

”, is displayed.

2.3.2 How the TP module works

When converting the QPSK-modulated signal to a QAM-modulated cable signal, the demodulated data stream can be accessed via the integrated TP module. This data stream, also called transport stream, contains several stations with all their components (video, audio, data and service information), which can be changed using the TP module.

The individual functions Station filter

Individual stations can be deleted. This reduces the data rate and, consequently, the output symbol rate.

Stuffing

The transport stream is padded out using what is known as zero data. This increases the data rate and, consequently, the output symbol rate. Changing the output symbol rate suitably alters the bandwidth used (halving the output symbol rate roughly halves the bandwidth at the output).

Changing service information

The transport stream contains data in the form of tables which the receivers evaluate and require for convenient use. The TP module can change the “Network Information Table” (NIT). The NIT contains data which the set-top box needs for the automatic search function.

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2.3.3 Explanation of the term “symbol rate”

High-quality modulation methods like QPSK and QAM can encrypt several bits as a single transferred and received symbol. The user data stream contains the audio and video signals of a station and is thus permanently assigned. If the value of the modulation and therefore the number of bits per symbol is increased, the symbol rate falls compared to the user bit rate. Formulae for calculating the output symbol rate “SR (A)” at a fixed input symbol rate “SR (E)” and “FEC”.

256-QAM: SR (A) = FEC x

/4 x SR (E)

128 -Q A M: SR (A) = FEC x 2/7 x SR (E) 64-QAM: SR (A) = FEC x 1/3 x SR (E) 32-QAM: SR (A) = FEC x 2/5 x SR (E) 16- QA M: SR (A) = FEC x 1/2 x SR (E) 4-QAM: SR (A) = FEC x 1/1 x SR (E)

Example:

Output symbol rate 64-QAM,

FEC= 3/4,

Input symbol rate SR (E) = 27,500 kilosymbols per second

SR (A)

= 3/4 x 1/3 x 27,500 kilosymbols/s

SR (A)

6,875 kilosymbols/s

Note:

If no “FEC” is stated in the station lists, it can be assumed to be “FEC = 3/4”.

Reception from a transponder with a very low symbol rate (SCPC station)

The extremely low data rate means that the output symbol rate is very low. If there are reception problems with different digital receivers, set QAM modulation with stuffing to a higher value.

Defined symbol rates

Some cable operators specify a fixed symbol rate (e.g. 6,900 kilosymbols per second).

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3 Assembly

+24

BREITBA

3.1 Installing the Cassette

Warning

Before inserting or changing Cassettes, pull the mains plug of the head end

out of the mains socket.

Unscrew the fastening screws from the bracket in the head end.

•

• Insert the Cassette into a free slot and push it into the housing.

• Align the Cassette and gently make it contact with the connections of the

circuit board and the HF bus bar.

• Fasten the Cassette with the 1 screws.



C101

L104

L100

L101

L103

C100

LNC-

+18V

ROT

GRUEN

+18V

Anschl.

CASSETTE

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INPUT OUTPUT OUTPUT INPUT

3.2 Connecting the Cassette

•

Connect the HF input cable with the input sockets “

(channel strip A) and “

•

Connect the head end to the mains power supply.

—> The Cassette is now ready for operation.

INPUT B

INPUT A

” 1 (channel strip B).

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