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Grundig SAT Syst ms HDTV Digital QAM PHDQ 2002 BC PHDQ 3002 BC PHDQ 4002 BC PHDQ 5002 BC C LASS CLASS C LASS CLASS Phone: +49 (0) 911 / 703 8877 Grundig SAT Systems GmbH Fax: +49 (0) 911 / 703 9210 Beuthener Straße 43...
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”...
Take action to prevent static discharge when working on the device. 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)
Connections: SAT inputs: 2 F-connectors HF output: 1 IEC socket, female Connection strip (10-pin): For supply voltages and control circuits Socket RS 232: Update interface 2.3 Description The Cassettes convert two QPSK-modulated data flows into one QAM-modu- lated data flow. The Cassettes are controlled via the head end. Each Cassette has two inputs and one HF output, as well as an integrated multi-transport flow processor for stuffing, PID pass, drop and service filtering.
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.
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 in- creased, the symbol rate falls compared to the user bit rate.
Assembly 3.1 Installing the Cassette arning 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. •...
Note: The operating software of the Cassette can be updated via the socket “RS 232” (9-Pin-Sub-D) by means of a PC or notebook. Use the “BE-Flash” software as the update software. You can make drop and pass filter settings in the channel strip “B” using the “MTP” PC software. You can find the current operating software of the Cassettes on the website “http://www.gss.tv”.
Programming The following examples show how the PHDQ 4002 BC Cassette is programmed; the output channels can be set from S21 … S41. Set the other Cassettes listed in the same way. 5.1 Preparation Notes: Using the menu “LEVEL CONTROL” the Cassette generates an equally powerful HF carrier on the video carrier frequency of the channel.
5.2 The menus at a glance Mit * ) gekennzeichnete Funktionen sind BE–Remote V.34 nur im Kanalzug ”A“ möglich Ein/On Functions marked by a star * ) are only PROFESSIONAL possible in the channel strip ”A“ t > 10 s Bx 1A TWIN-SAT Böx 4...
5.3 Cassette programming • Switch on the head end. —> The display shows the software version of the head end (e.g. V.34). —> The processor reads the Cassettes‘ data (approx. 10 s). Mit * ) gekennzeichnete Funktionen sind BE–Remote V.34 nur im Kanalzug ”A“...
(-64 … +64). • If necessary, use the key to return to the channel ◀ setting. Note: Using the Cassette PHDQ 2002 BC and PHDQ 3002 BC the menu “Frequency setting” appears instead of “Channel setting”. - 14 - - 14 -...
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OUTPUT: Bx 1A OUTPUT: Bx 1A ◀ ▶ Modulator: – 112.0000 MHz The QAM signal is transmitted with a bandwidth of 8 MHz. This means that you can only use the channel centre fre- quency of the existing channel raster in the range of chan- nels S21 …...
Press the button. —> The menu “Setting the LNB oscillator frequency” – “LNB-Freq.:” is activated (page 18). • Press the button. —> The sub menu “Modulator settings” – “OUTPUT: Modulator” is activated. Modulator settings (only Bx…A) Bx 1A OUTPUT: Modulator: on / off •...
strip. Thus you can measure the absolute output level using a analogue test receiver. • Measure the output level of the channel strip using the con- nected antenna test receiver. button activate AUDIO • By pressing the the menu “OUTPUT: LEVEL HF OUT:”...
• By pressing set the spectral position “normal” or “inverse”. • Press the button. —> The menu “QAM monitoring” – “MODE: Ueberwachung” is activated. QAM monitoring (only Bx…A) In this menu the signal at the Cassettes´ output is defined if there is no input signal available: –...
Setting the input symbol rate and the DVB mode Setting the symbol rate The symbol rate “SR” of the satellite transponder can be found in the current transponder tables of the various satel- lite trade magazines or in the websites of the according program providers.
Setting the input frequency (transponder frequency) Notes: – 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, any offset to the target frequency is displayed in MHz, e.g.
Note: At a value lower than “5” picture dropouts can occur. If “OK” is shown, the signal to noise ratio is ok. If a value < 5 is shown under the display changes from “OK” to “!!”. • Press the button —>...
Setting the stuffing (only Bx…A) Bx 1A STUFFING: ◀ ▶ – SR=6900 (6531) Kanalzug A Channel strip A SR=6900 (= “number 1”): Active output symbol rate Bx 1A STUFFING: SR=6900 (6531) Zahl 1 Zahl 2 Number 1 Number 2 (6531) (= “number 2”): The current measured output symbol rate.
Is the “number 1” lower than “number 2” exclama- tion marks “!!” appear in the display. Bx 1A STUFFING: SR=6250 (6531) !! Saving settings • Press the button. —> Return to “Selecting the Cassette” (page 13). —> The “new” settings are saved permanently. —>...
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