manualshive.com logo in svg

GSS HDMT 1290, Assembly Instructions Manual, Page: 26 / 32

Share
Download
GSS HDMT 1290 Assembly Instructions Manual Download Page 26

 

 

- 26 - 

HDMT 1290 

 

—>  Is the “Number 2” higher than “Number 1” question marks “

??

” appear 

in the display. In this case correct the COFDM settings (pages 32 …) or 

the settings of the station filter (page 28).

Bx 4A

34363 

(36906) ??

STUFFING

 

•  Press the 

 button.

 

—>  The “Setting a substitute signal in the case of an incorrect input signal” – 

“

FAILURE

” menu is activated.

 

Setting a substitute signal in the case of an incorrect input signal

 

You use this menu to set whether a COFDM signal filled with “

Null Packets

”, 

a COFDM signal filled with null packets and self-made tables ”

Tables

“ or a 

“

Single Carrier

” signal should be provided as an output signal whenever an 

incorrect input signal occurs. Self-made tables are transmitted furthermore.

Bx 4A
Null Packets

FAILURE

 

•

  Use the 

 buttons to set the output signal required.

 

•  Press the 

 button.

 

—>  The “Setting the transport stream ID and the ORGNET-ID” – “

TS/ONID

” 

menu is activated.

Summary of Contents for HDMT 1290

Page 1: ... 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 info gss de Internet http www gss de ...

Page 2: ...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 transmi...

Page 3: ...ts 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 DINEN50083 and IEC EN DINEN60728 must be observed For further information please read the assembly instructions for the head end station used Test the software versions ...

Page 4: ... 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 ...

Page 5: ...te 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 c...

Page 6: ...e 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...

Page 7: ...en the cassette with the screws 1 0 1 1 KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE KASSETTE HYBRID VERSTÄRKER MESSAUSGANG 20dBµV AUSGANG max 106dBµV ACHTUNG VordemKassettenwechsel unbedingt denNetzsteckerziehen CAUTION Before changingcassettesremove mainsplug Grundig SAT Systems 3 2 EMC regulations To comply with the current EMC regulations i...

Page 8: ...ion is made between the housing 19 cabinet and cable terminals 3 3 Connecting the cassette 7 6 4 3 2 5 1 1 HF 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 s...

Page 9: ...y 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 scro...

Page 10: ...assette 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 7 6 4 3 2 5 1 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 interf...

Page 11: ...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 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 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 C66 0 INPUT OK Bx 4A Priority high INPUT Bx 4...

Page 12: ...PS 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 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 Bx 4A 0x0001 0100 TS ONID off off ...

Page 13: ... 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 Box 1 Box 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 Th...

Page 14: ...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 fre...

Page 15: ...tput 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 Additi...

Page 16: ...odulators 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 follow...

Page 17: ...ta 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 Use to set the desired input channel If necessary use the button to activate the menu Fine tuning 0 is dis played additionally Use 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 s...

Page 18: ...mission 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 men...

Page 19: ...urther possible terms displayed RA Radio channel type For radio stations the background 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 recei...

Page 20: ... 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 4 1 8 1 16 1 32 QPSK 1 2 4976 5529 5855 6032 2 3 6635 7373 7806 8043 3 4 7465 8294 8782 ...

Page 21: ...930 18473 64 QAM 1 2 13063 14515 15369 15834 2 3 17418 19353 20491 21112 3 4 19595 21772 23053 23751 5 6 21772 24191 25614 26390 7 8 22861 25401 26895 27710 Net data rate kbit s at a bandwidth of 6 MHz Guard interval Modulation Code rate 1 4 1 8 1 16 1 32 QPSK 1 2 3732 4147 4391 4524 2 3 4976 5529 5855 6032 3 4 5599 6221 6587 6786 5 6 6221 6912 7318 7540 7 8 6532 7257 7684 7917 16 QAM 1 2 7465 829...

Page 22: ... f kHz 4 4643 2 232 1 116 n carrier theoretical 2048 4096 8192 n carrier real 1705 3410 6817 Used bandwidth MHz 6 66 6 66 6 66 Total symbol duration TGS µs 320 288 272 264 620 576 544 528 1280 1152 1088 1056 Guard interval TG µs 64 32 16 8 128 64 32 16 256 128 64 32 TG TS 1 4 1 8 1 16 1 32 1 4 1 8 1 16 1 32 1 4 1 8 1 16 1 32 Transmission parameters for DVB T at a bandwidth of 6 MHz Transmission mo...

Page 23: ...andwidth dependent on the frequency of the adjacent channel Bx 4A 8MHz QAM64 COFDM MODE POS Use to set the bandwidth of the output signal 5 MHz 8 MHz Carrier modulation In this menu item the carrier modulation is set At this the setting QPSK cor responds to the lowest and the setting QAM64 to the highest output data rate Use the buttons to place the cursor under QPSK QAM Set the carrier modulation...

Page 24: ...he signal to be transmitted forward error correction The factor of the quantity of redundancy contained in the bits transmitted is called code rate Using the setting C7 8 you can get the highest output data rate at lowest redun dancy Use the buttons to place the cursor under C Set the code rate required using the buttons C1 2 C2 3 C3 4 C5 6 C7 8 Guard interval In this menu item you set the relatio...

Page 25: ...hexadecimal number Repeat the procedure by the quantity of the digits to be set Using the button place the cursor under off and switch on the trans mitter identification using the buttons By pressing the button you return to the hexadecimal number setting Press the button The Stuffing STUFFING menu is activated Stuffing This menu shows the output data rate defined using the COFDM settings and the ...

Page 26: ...ing a substitute signal in the case of an incorrect input signal You use this menu to set whether a COFDM signal filled with Null Packets a COFDM signal filled with null packets and self made tables Tables or a Single Carrier signal should be provided as an output signal whenever an incorrect input signal occurs Self made tables are transmitted furthermore Bx 4A Null Packets FAILURE Use the button...

Page 27: ... cursor under off and switch on the trans mitter identification using the buttons By pressing the button you return to the hexadecimal number setting Press the button The Network Information Table NIT menu is activated Network Information Table NIT Bx 4A off NIT Make To switch NIT on off on off press the buttons Press the button to activate NIT Make All active COFDM cassettes must be set and ready...

Page 28: ...off Use the buttons to place the cursor under the respective digit of the hexadecimal number of the PID to be deleted 0x0000 and set the hexa decimal number using Use the button to set the cursor under off and delete the PID using the buttons on Press the button The Renaming a PID REMAP menu is activated Renaming a PID In this menu you can allocate a new address to a PID retaining the complete dat...

Page 29: ...RY Bx 4A STORE FACTORY M Press the button The factory defaults are invoked FACTORY STORE By pressing the button you will be returned to the menu item Selecting the channel strip without invoking the factory defaults page 14 Press the button The factory defaults are saved The display shows STORE Back to Selecting the cassette page 13 By pressing the button you will be returned to the menu item Sele...

Page 30: ...edures After installing the head end station upgrading accessories or installing cas settes it is necessary to tighten all cable connections cable terminals and cover screws in order to maintain compliance with current EMC regulations securely Securely tighten the cable connections using an appropriate open ended spanner Measure the output levels of the other cassettes and tune them to a uniform o...

Page 31: ... 514 00 C 27 522 00 C 28 530 00 C 29 538 00 C 30 546 00 C 31 554 00 C 32 562 00 C 33 570 00 C 34 578 00 C 35 586 00 C 36 594 00 C 37 602 00 C 38 610 00 C 39 618 00 C 40 626 00 C 41 634 00 C 42 642 00 C 43 650 00 C 44 658 00 C 45 666 00 C 46 674 00 C 47 682 00 C 48 690 00 C 49 698 00 C 50 706 00 C 51 714 00 C 52 722 00 C 53 730 00 C 54 738 00 C 55 746 00 C 56 754 00 C 57 762 00 C 58 770 00 C 59 778...

Page 32: ...Alterations reserved Technical data E O E GSS GmbH V13 02022010 Service Phone 49 0 911 703 2221 Fax 49 0 911 703 2326 Email service gss de ...

Reviews:

No comments