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L2101 &L2102 Integrated Receiver Decoder Instruction Manual – Issue 1 – September 2003

Page

86 of 126

Link Research Ltd. 23 Watford Metro Centre, Dwight Road, Watford, Hertfordshire, WD18 9XA, England.

Tel: +44 (0) 1923 200 900 Customer Support and S44 (0) 1923 200 909

Registered in London No. 2074604 Web: www.linkres.co.uk

Fax: +44 (0) 1923 241 357

Test Menu Functions

OPTION

DESCRIPTION

Decoding Test Pattern

Test Pattern Decoding Test
This test option checks the response of the decoding function in the IRD
to various internally injected test patterns.
Available test options:

None

PAL B/G, PAL D, SECAM, PAL N

(these tests include display of Teletext information)

PAL M, NTSC

(these tests include display of Audio1 and Audio2 information)

Audio1 Tone Test

Audio 1 Tone Test
This test option establishes the tone test for Audio 1.
Test tone is between 1 KHz to 10 KHz.

Audio2 Tone Test

(Option)

Audio 2 Tone Test (option)
This test option establishes the tone test for Audio 2.
Test tone is between 1 KHz to 10 KHz.

VITS Full Screen Test

(L2201 Only)

VITS Test

NOTE

This test is available ONLY in the L2201

Insertion of full screen test pattern only if the Video Internal Time Code
(VITS) is enabled. Available test options:

NONE
SIGNAL TO NOISE (S/N)
SIN (x)/x
BAR 75%
CCIR473 LINE

CCIR473 LINE

330

CCIR473 LINE

331

CCIR473 ADDITIONAL

Содержание L2201

Страница 1: ...003 Page i of 126 Link Research Ltd 23 Watford Metro Centre Dwight Road Watford Hertfordshire WD18 9XA England Tel 44 0 1923 200 900 Customer Support and Service 44 0 1923 200 909 Registered in London No 2074604 Web www linkres co uk Fax 44 0 1923 241 357 User Manual L2201 L2202 ...

Страница 2: ...ghlights benefits and typical applications gives a functional and physical description of the unit and lists its main capabilities and specifications INSTALLATION This section provides data and procedures required to install and activate the unit Procedures include site preparation and requirements installation in a 19 rack cable connections panel options and Pin out descriptions initial settings ...

Страница 3: ... a full description of the problem leading to the failure Return the unit to Link Research at the address given preferably in the original packaging and enclosing a full fault report wherever possible The unit will be repaired and returned as soon as possible Repair times should be short but if you must have a replacement unit immediately then you can take advantage of our advance replacement serv...

Страница 4: ...t has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC rules These limits are designed to Provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and If not installed and used in accordance with the instructions may cause harmful interfere...

Страница 5: ...nal Description 15 1 15 L2201 and L2202 Block Diagram 15 1 16 Basic Configuration 15 1 17 Receiver Front End Options 16 1 18 Configuration Options 17 2 Mechanical Structure 18 2 1 Enclosure 18 2 2 Front Panel 18 2 3 Rear Panel 18 3 Management 20 3 1 Front Panel Control 20 3 2 Infrared Remote Control 20 3 3 PC Terminal Control 20 4 Characteristics and Specifications 21 4 1 Receiver Input Specificat...

Страница 6: ...n Sub Menu 58 6 6 Decoder Video Configuration Sub Menu 59 6 7 Decoder Audio Configuration Sub Menu 62 6 8 Configuration System Menu 64 6 9 Status Menu 68 6 9 1 Status Receiver Menu 69 6 9 2 Status Decoder Menu 73 6 10 Decoder Stream Status Sub Menu 75 6 11 Decoder CI Status Sub Menu 78 Decoder Video Status Sub Menu 80 6 12 Decoder Audio Status Sub Menu 82 6 12 Status System Menu 84 6 13 Test Menu ...

Страница 7: ...ordshire WD18 9XA England Tel 44 0 1923 200 900 Customer Support and Service 44 0 1923 200 909 Registered in London No 2074604 Web www linkres co uk Fax 44 0 1923 241 357 B 1 Why is an LNB needed 123 B 3 Frequency Calculation IRD LNB 123 B 4 Use of a Splitter or Distribution band Amplifier 124 B 5 Calculating the L Band Frequency 125 D 1 Calculating Symbol Rate 126 ...

Страница 8: ......

Страница 9: ...G 2 video and audio decoders as well as Data and VBI insertion functions Control and management can be obtained via the IRD front control panel an optional Infrared Remote Control or an attached PC terminal Input and Output sections support variable modules for versatility of the L2201 and L2202 Input of DVB ASI transport Stream or RS 422 directly to the decoder as well as ASI output optionally de...

Страница 10: ...04 Web www linkres co uk Fax 44 0 1923 241 357 1 3 Inputs Decoder Inputs RS 422 Clock Data Input DVB ASI with Loop through optional Interface Copper or Optical TS bit rate up to 54 Mbps Receiver Input Options DVB Satellite QPSK Front End Frequency range 950 2150 MHz Symbol rate range 1 45 M Symbols s L Band RF input with LNB control and Loop through output DVB DSNG 8PSK 16QAM and QPSK Front End Fr...

Страница 11: ... Subtitling EBU Teletext Subtitling OSD only on monitoring output optional Sync Lock Input and Loopthrough output optional VBI Re Insertion In Composite video and embedded in SDI WST Teletext and inverted Teletext WSS VPS VITC SMC CC AMOL optional Enhanced VITS with built in generator Audio Analog audio up to 3 stereo pairs up to 2 stereo pairs in L2201 All inputs balanced or 1st unbalanced option...

Страница 12: ...s Activated when hardware failure is identified default alarm mode Activated when Bit Stream warning is identified i e input signal failure Activated when Service Decoding warning is identified Mode selection is manually activated using the control protocol Over The Air Control and Software download Remote PC via RS 232 or RS 485 Software download SNMP proxy PC software optional Enhanced DVB Monit...

Страница 13: ...purposes within a broadcast center for editing components of the DVB bit stream and for redistribution of local line input such as prerecorded video programs 1 10 Internal Corporate Distribution A growing application for DVB redistribution is internal corporate training and communications Both training and internal communications can greatly benefit from the decoding and redistribution of DVB sign...

Страница 14: ... RS 422 port The high speed transfer rates are limited by the maximum rate supported by the RS 422 interface and cable lengths b IRD HSD rates should be set slightly higher than those on the encoder 5 higher Optimal rate is best determined by trial and error Too low a rate yields increased bit errors Conversely too high a rate yields a stream that is too bursty This is not a problem if the target ...

Страница 15: ...hs in the L2201 and L2202 Smart Card CI MPEG 2 TRANSPORT DEMUX VIDEO DECODER AUDIO DECODER DATA CHANNEL RS 232 RS 422 AES EBU OUTPUT OPTION AUDIO OUT VIDEO OUT D A CONVERTER AUDIO AMP PAL NTSC ENCODER VIDEO AMP OUTPUT OPTIONS TELETEXT TRANSCODER TELETEXT OUT GPI OPTION SYNC INPUT SECTION DSNG QPSK QAM RECEIVER Input Signal Data Processor CPU Front Panel Display Keyboard ASI Input Signal GPI Interf...

Страница 16: ...ront panel control Extensive Status indicators Signal quality Eb N0 Video Audio rate CA information RS 422 transport stream input 1 17 Receiver Front End Options The L2201 L2202 are delivered in various front end configurations The following defines the specific features of each configuration in addition to the basic features described above DVB S QPSK Receiver Front End Option QPSK receiver for f...

Страница 17: ...n No 2074604 Web www linkres co uk Fax 44 0 1923 241 357 1 18 Configuration Options The following table lists the configuration options available for the various L2201 L2202 Standard applications NAME DESCRIPTION Russian Secam Russian Secam on the broadcast output only Built in with OPT 006 Available only for L2201 48V DC 48V DC power interface Replacing the 110 230V AC BISS 1 E for ASI out For su...

Страница 18: ... sections support various modules to enhance the versatility of the L2201 and L2202 in varied applications They support input of Parallel DVB Transport Stream Parallel TTL DVB ASI or RS 422 serial input This option enables input directly to the Decoder where the signal source is digital or when input via a receiver is not required The Decoder contains a demultiplexer MPEG 2 video and audio decoder...

Страница 19: ...uk Fax 44 0 1923 241 357 Table 1 1 L2201 L2202 Output Option OPTION CARD DESCRIPTION BLANK OUTPUT PANEL This panel is supplied as default when no output option is ordered Full With ASI In and OUT 3 Balanced Analog Audio over XLR or AES EBU SP DIF over XLR ASI IN OUT Loopthrough Sync lock IN OUT SDI OUT 1 2 BALANCED AUDIO OUT LEFT2 RIGHT2 Balanced Analog Audio 2 Out over XLR BALANCED AUDIO OUT LEFT...

Страница 20: ...l PC terminal 3 1Front Panel Control The L2201 and L2202 Front Panel provide a two line LCD display and a control keys It enables the user to control and monitor the L2201 and L2202 3 2 Infrared Remote Control The infrared remote control device supplied with the L2201 and L2202 enables arm chair control of the L2201 and L2202 The control keys are similar to those on the L2201 and L2202 Front Panel...

Страница 21: ...1 and the L2202 Integrated Receiver Decoder QPSK input option DNSG input option QAM input option QPSK Input Features and Specifications FEATURE SPECIFICATION L Band input 950 2150 MHz L Band Loopthrough output 950 2150 MHz 3dB Input level 65 to 25 dBm Symbol Rate 1 45 Msymbols sec continues Symbol Rate acquisition range 70 ppm Carrier acquisition range 1 4 Symbol Rate BER Quasi Error Free after Re...

Страница 22: ...ilter roll off 25 and 35 L band inputs 950 2150 MHz 2 Signal level density Co 130 to 105 dBm Hz Signal level Co 10Log Sat baud rate dBm Total input power 25 dBm max Clock acquisition range 200 ppm carrier acquisition range 3 Mhz Automatic FEC rate recovery Spectral inversion ambiguity resolution Automatic LNB power generation Off 13 or 18 Vdc 350 mA max 22Khz single tone burst and Diseqc 1 0 messa...

Страница 23: ... Profile Standards decoded MPEG 1 MPEG 2 Decoded Output Resolution 720 by 480 at 30 Hz NTSC 720 by 576 at 25 Hz PAL Encoded Input Resolution of the L2201 Horizontal by Vertical at Frequency 720 704 640 544 528 480 352 320 480 30 Hz 720 704 640 544 528 480 352 320 480 24 Hz 352 240 30 Hz 384 352 240 24 Hz 720 704 640 544 528 480 352 576 25 Hz 720 704 640 544 528 480 352 288 25 Hz Encoded Input Reso...

Страница 24: ...G 2 Stereo MPEG 1 layer I and II AC 3 Dolby Digital Surround pass through Linear Audio on digital output L2202 Only Audio 1 Channel Balanced Stereo Unbalanced Mono Stereo option AES EBU SP DIF option Audio 2 Channel option Balanced Stereo option AES EBU SP DIF option Audio 3 Channel option ONLY for L2202 Balanced Stereo option AES EBU SP DIF option 4 3Control Ports Specifications The IRD provides ...

Страница 25: ...ECIFICATION Dimensions 1U 4 4 x 48 2 x 30 2cm 1 75 x 19 x 11 9 Weight 2 5 Kg Operating Temperature 0 C 50 C Operating Humidity 5 85 Non condensing Storage and Transport Temperature 40 70 C NOTE before operation after transportation of the equipment below 0 C wait for 12 Hours at room temperature Storage and Transport Humidity 0 95 Non condensing The table below summarizes the electrical supply and...

Страница 26: ...tion of multiple IRD devices in order to facilitate system expansion 5 2Safety Precautions To avoid injury and prevent equipment damage observe the following safety precautions Do not move or ship equipment unless it is properly packed in its original wrapping and shipping containers Equipment service and maintenance should be undertaken only by Link Research trained personnel To prevent damage by...

Страница 27: ...uthority regulations All powering should be wired with an earth leakage in accordance with local regulation In any rack installation ensure that the rack has been properly grounded 5 5 Installation 5 5 1 Installation in 19 Rack To prepare the IRD for rack installation a The rack adapter kit includes two mounting brackets The brackets are fastened with screws to the sides of the IRD housing Attach ...

Страница 28: ...the DVB CI Module PCMCIA The figure below shows the IRD with DVB CI Module PCMCIA card and the Smart Card used to decrypt the incoming signal The IRD is provided with two PCMCIA slots for up to two DVB CI Modules The PCMCIA should be firmly inserted in to the two slots provided to ensure contact Each DVB CI Module accommodates one Smart card inserted with the UP mark pointing up and forward WARNIN...

Страница 29: ...anel can be logically dived in to three sections Left Receiver Center Decoder and Right Output The left and right sections are comprised of option cards The functionality of the available options is described in the section on configuration options The left section provides front end connectors for the receiver option installed in the IRD The center Decoder section is a standard feature for digita...

Страница 30: ...ecoder section of the IRD is comprised of Audio outputs Video outputs Data output and a Control connection Cables and Connectors for Decoder Section INTERFACE CONNECTOR TYPE CABLE TYPE Analog Audio Out left RCA unbalanced XLR balanced Shielded Audio Cable Analog Audio Out right mono RCA unbalanced XLR balanced Shielded Audio Cable Video Out S Video Y C 75 Ω DIN connector Super Video Cable Composit...

Страница 31: ...ols can be simultaneously enabled over the connector interface RS 422 RS 232 Data Output Pin Out Designations PIN DESIGNATION PIN DESIGNATION 1 RS 422 Clock Return 6 RS 422 Clock 2 RS 232 RxD 7 RS 422 Data Return 3 RS 232 TxD 8 RS 422 Data 4 Manufacturer Test Point 9 Manufacturer Test Point 5 Ground 5 6 5 Power Connection Ground Connection Ground connection to the IRD is made by connecting an AC p...

Страница 32: ...AC power cable to the IRD power connector at the rear of the unit see above Connect the other end to the AC power source DC Power Connector In some cases the IRD is fitted with a 48V DC Power Supply as shown above DC Power Configuration When this is the case please connect the power source as described below To connect the 48V Power Supply a Connect a 48V DC source wire to the contact on the power...

Страница 33: ...and operational The IRD supports two Loopthrough methods Cascade Loopthrough Output from the Receiver Input see paragraph 5 7 1 ASI Interface Loopthrough see paragraph 5 7 2 5 7 1 Cascade Loopthrough Output Connect the input signal to the first IRD receiver input Cascade remaining units as shown in the diagram below IRD Cascade with RF Receiver Loopthrough RECEIVER INPUT ASI OUT 1 RF IN 25dBmMax O...

Страница 34: ... RIGHT1 ANALOG AUDIO OUT AES EBU AC3 S VIDEO RS422 GPI UNBALANCED G703 INPUT LOOPTHROUGH OUTPUT DS3 E3 E2 E1 RS422 GPI UNBALANCED G703 INPUT LOOPTHROUGH OUTPUT DS3 E3 E2 E1 5 7 3 RS 485 Master Slave Connection Multiple IRD devices can be managed from a single terminal control station using a Master Slave configuration as shown in the figure below As shown the Master Slave configuration uses a RS 2...

Страница 35: ...led in the IRD Operation Guide The initialization sequence is detailed in the table below Prior to initialization review the IRD Operation Guide for instructions on how to use and navigate the system menus and for explanation of configuration parameters L2201 L2202 Initialization Sequence SEQ OPERATION DESCRIPTION a MPEG DVB IRD Initializing Please Wait On initialization the LCD displays the initi...

Страница 36: ...g to the BAND input c LNB Power Supply Parameter 3 Select LNB Power Supply option 4 Set the LNB Power Supply to 14 18 or OFF as required d LNB 22 kHz Parameter 5 Select LNB 22 kHz option 6 Using the controls set the option to ON or OFF as required e Input Signal Source Parameter 7 Select Input Signal Source option 8 Set to A input f Symbol Rate Parameter 9 Select Symbol Rate option 10 Set the Symb...

Страница 37: ...tion to ON or OFF as required e Symbol Rate Parameter 7 Select Symbol Rate option 8 Set the Symbol Rate as required f Viterbi Rate Parameter 9 Select Viterbi Rate option 10 Set to 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 or AUTOMATIC as required g Spectral Inversion Parameter 11 Select Spectral Inversion option 12 Set the option to AUTOMATIC NORMAL or INVERTED as required QAM Receiver Configuration Procedu...

Страница 38: ...erviceability check Serviceability Check CHECK 1 Verify that the LCD Status Message reads ALL OK 2 Check for Video Picture on monitor 3 Toggle between Composite and S VIDEO modes 4 Check Audio channels Left and Right In the event that no video or audio output is received perform a test on the decoder audio video stream To test the decoder audio video stream From the Status Message press the down a...

Страница 39: ...escribes the procedures required for the operation of the L2201 and L2202 Integrated Receiver Decoders 6 1 1 IRD Operation and Management Both L2201 and L2202 Integrated Receiver Decoders can be manually managed from the IRD Front Control Panel locally by a PC Terminal or remotely Manual management of the IRD is provided from the IRD Front Control Panel by the keypad on the panel or by using an op...

Страница 40: ... t e E s c LCD Four Way Touch Pad ESC Touch Pad Enter Touch Pad LED Common Interface Card Panel Cover L2201 L2202 Front Control Panel CONTROL ITEM DESCRIPTION LCD The LCD is an alphanumeric display used to view the embedded software status messages and parameter settings Four Way Touch Pad The Four Way Touch Pad enables navigation UP DOWN LEFT or RIGHT in the embedded software menus by moving the ...

Страница 41: ... Exits from the current message or returns to the Status Message when working in the menus 5 MENU Calls up Additional Commands 6 PR PR Scrolls programs increasing or decreasing by one 7 Decimal Enables the first pressed numerical key to indicate the tens digit of the program to be run 8 0 to 9 Use to select preset program numbers In conjunction with the Decimal Key the first numerical key pressed ...

Страница 42: ...ntre Dwight Road Watford Hertfordshire WD18 9XA England Tel 44 0 1923 200 900 Customer Support and Service 44 0 1923 200 909 Registered in London No 2074604 Web www linkres co uk Fax 44 0 1923 241 357 IRD Infrared Remote Control Items CONTROL FUNCTION 13 ENTER Confirms menu selection saves a new parameter or proceeds to the next menu ...

Страница 43: ...ional Infrared Remote Control see the figure above are used to navigate in the embedded software menus UP Touch Pad Navigets Up in the menu tree DOWN Touch Pad Navigates Down in the menu tree LEFT Touch Pad Navigates Left in the menu branch RIGHT Touch Pad Navigate Right in the menu branch When the LCD displays the Start Up Menu the pad is used as follows UP and DOWN Touch Pads No use LEFT Touch P...

Страница 44: ...igurations share a common initialization phase and when successfully completed display the IRD Front Panel Main Menu structure as shown in the figure below and described in the following table The following paragraphs provide detailed description of each of the options in the Main Menu A dotted menu selection in the flowing diagrams indicates that the availability of this option is dependent upon ...

Страница 45: ...guration Menu enables setup and control on the IRD operation Status Menu The Status Menu option enables access to the Receiver Decoder and System status parameters These options are used to view the IRDs current configuration and status Depending on the type of Receiver installed in the IRD the Receiver Status Menu provides functions to monitor the operation of the receiver The Decoder Status Menu...

Страница 46: ...ency 27 MHz Synchronization PTS PCR Synchronization Service Component PID Service ID Source When Current Service N A Data1 HSD PID Filtering Data2 LSD PID Filtering C I Operation Enable STREAM CI VIDEO AUDIO LNB Local Oscillator LNB Power Supply L Band Frequency Symbol Rate Viterbi Rate Spectral Inversion Frequency Scan Network Channels LNB 22KHz Display Contrast Product Type Software Reset Contro...

Страница 47: ...S DSNG DVB DSNG QAM DVB C receiver options The Configuration Receiver Menu is input sensitive i e varies automatically according to the IRD Input option installed and provides a group of functions to configure the receiver section of the IRD The IRD Front Panel display controls and keypad are used to scroll through the menu view the options available and set the parameters of the configuration fun...

Страница 48: ...ork Channel Input Signal Source Input Signal Source Modulation Mode N requist Filter Roll Off Modulation Mode Nyquist Filter Roll Off Freq Drift compensation Freq Drift Compensation RECEIVER Frequency Range Ku C Band L Band CONFIG LNB Local Oscillator LNB Power Supply L Band Frequency Symbol Rate Viterbi Rate Spectral Inversion Frequency Scan Network Channels LNB 22KHz LNB Local Oscillator LNB Pow...

Страница 49: ...d by down converting the frequency of the incoming signal However for display accuracy the selected LNB Local Oscillator frequency must be in accordance with the frequency of the receiving antenna installed in the system disregarding the frequency provided at the IRD input The LNB Local Oscillator parameter has following select options PARAMETER BAND PARAMETER BAND DiSeQC 9750 10600 10600 Ku Band ...

Страница 50: ...s performed automatically and the LNB 22 KHz Receiver Configuration function is not displayed in the Receiver Configuration Menu Input Signal Source Input Select Selects the input source for the IRD Receiver input Available options In A Selects Input A In B Selects Input B NOTE The In B connector is standard in the DSNG application For all other receivers QPSK the IN B connector is connected as lo...

Страница 51: ...on 1 to 45 Mbaud sec QAM configuration 1 to 7 2 Mbaud sec If the Bit rate information is provided but no Symbol Rate information is given the Symbol Rate may be calculated by the equations provided in Appendix B NOTE It is important to input the Symbol Rate accurately including all the decimal places that are given QAM Mode QAM Mode Select Selects the QAM Mode of operation for the QAM IRD Availabl...

Страница 52: ...Inverted spectral inversion Normal Normal spectral inversion Inverted Inverted spectral inversion Freq Drift Compensation Frequency Drift Compensation Activation ENABLE DISABLE the frequency drift compensation function caused by LNB drift and enviromental changes Frequency Scan Frequency Scan Select This utility provides two frequency scan options used to find DVB transmission signals Scan Frequen...

Страница 53: ... tree of configuration functions available in the Decoder Configuration Menu password is required only if it was enabled previously The IRD Front Panel display controls and keypad are used to scroll through the menu view the options available and set the parameters of the configuration functions provided The Decoder Configuration functions are grouped into four groups and are described in the foll...

Страница 54: ...y Initialization Password Video Format VPS Insertion Video Interpolation Monitor Aspect Ratio Teletext Insertion VITS Insertion VITC Insertion CC Insertion Audio Decoder Operation AC3 Sampling Frequency 27 MHz Synchronization PTS PCR Synchronization Service Component PID Service ID Source When Current Service N A Data1 HSD PID Filtering Data2 LSD PID Filtering C I Operation Enable STREAM CI VIDEO ...

Страница 55: ... Sub Menu provides an extended menu of setup and selection options to configure the decoder s streams Figure 0 2 shows the menu tree of configuration functions available in the Decoder Stream Configuration Sub Menu Error Reference source not found describes the configuration functions provided to the IRD operator in the sub menu Figure 0 2 Decoder Stream Configuration Sub Menu Tree Structure 27 MH...

Страница 56: ... DISABLE the PTS PCR picture video and sound audio lips synchronization using the Presentation Time Stamp PTS and PCR signals from the stream data Lips Sync Mode Lips Synchronization Mode Selects the operating mode for the Lips PTS PCR Synchronization function Active when PTS PCR synchronization is ENABLED Options available Locked Picture video and sound audio are locked 2mSec Standard Standard Sy...

Страница 57: ...service until the user will change his request Data1 HSD PID Filtering Data1High Speed Data Filtering Options Selects the filtering applied to the Data1 HSD PID information P E S Payload Strips the header of the Packetised Elementry Stream PES Entire Transport Packet Enables the entire transport stream packet 188 bytes Transport Payload Strips the transport stream header first 4 bytes on of the 18...

Страница 58: ...n options for the CI function The following table shows the menu tree for the Decoder CI Configuration Sub Menu Describes the Options in the Sub Menu OPTION DESCRIPTION CI Operation Enable CI Operation Control ENABLE DISABLE the common Interface Function CI slot 1 PIN Code PIN Code for CI Slot 1 Enables the user to enter the password PID Code for the smart card installed in CI slot 1 CI slot 2 PIN...

Страница 59: ...menu of setup and selection options to configure the decoder s video signal generated from the input data The figure below shows the menu tree of configuration functions available in the Decoder Video Configuration Sub Menu The table below describes the configuration functions provided to the IRD operator in the sub menu Decoder Video Configuration Sub Menu Tree Structure STREAM CI VIDEO AUDIO DEC...

Страница 60: ...o data when the lips PTS PCR Synchronization function is locked see paragraph 3 4 2 1 Delay range available from 20 to 20 mSec negative for delay of audio Option available for L2202 ONLY Monitor Aspect Ratio Aspect Ratio Select Selects the aspect ration for the displayed picture 16 9 or 4 3 or 14 9 Selects the monitor type connected to the IRD The IRD will insert the Wide Screen Signaling WSS line...

Страница 61: ...6 15 TSubtitle SubService option VITS Insertion VITS Insertion Selection Selects the Video Internal Test Signals VITS Insertion type Disable VBI Lines 19 20 VBI Lines 17 18 VBI Line 17 NTSC VITC Insertion VITC Insertion Selection Selects the Video Internal Time Code VITC Insertion type Disable VBI Lines 12 14 Extrn VBI Lines 14 16 Extrn VBI Lines 16 18 Extrn VBI Line 14 Extrn VBI Line 19 Extrn VBI...

Страница 62: ...er Audio Configuration Sub Menu provides an extended menu of setup and selection options to configure the decoder s audio signals generated from the input data The figure below shows the menu tree of configuration functions available in the Decoder Audio Configuration Sub Menu The table below describes the configuration functions provided to the IRD operator in the sub menu Decoder Audio Configura...

Страница 63: ...le only in the L2202 AC3 Sampling Frequency AC3 Sampling Frequency Select Selects the sampling frequency for the AC3 pass through function in the digital audio function provided by the IRD Available options are 48 KHz 44 1 KHz 32 KHz Audio1 Prefered Language Audio2 Prefered Language Audio3 Prefered Language Preferred Language for Subtitles Selects the preferred language for the audio1 or audio2 au...

Страница 64: ...on functions available in the System Configuration Menu password is required only if it was enabled previously The table below describes each configuration function and the options available to the IRD user The IRD Front Panel display controls and keypad are used to scroll through the menu view the options available and set the parameters of the configuration functions provided System Configuratio...

Страница 65: ...ardware replacement The Decoder software can be updated when required The available options are IRD DSNG Displays the factory predefined IRD receiver type Options IRD DSNG IRD QPSK IRD QAM Decoder Serial RS 422 Selects serial RS 422 output configuration for the Decoder Decoder Parallel DVB Selects Parallel DVB output configuration for the Decoder requires optional hardware installation Decoder ASI...

Страница 66: ...mits bytes from MSB to LSB RS 422 LSB to MSB Transmits bytes from LSB to MSB Data2 LSD Output Format Data2 Output Format Select This parameter sets the Data2 LSD output format Available options RS 232 Transmits on PS 232 port on the DATA Output Connector RS 422 MSB to LSB Transmits bytes from MSB to LSB on RS 422 port RS 422 LSB to MSB Transmits bytes from LSB to MSB on RS 422 port NOTE The RS 422...

Страница 67: ...s Hex word for all BISS CA encryption modes NOTE This option is NOT available when the EVEN ODD DSNG CA Encryption mode is selected ODD EVEN Key Odd Even Key Setup Sets the key value 64 bit word for the ODD EVEN CA Encryption mode NOTE This option is available ONLY when the EVEN ODD DSNG CA Encryption mode is selected It is NOT available when any of the BISS CA Encryption modes are activated Injec...

Страница 68: ...CI Slot 1 CA Specifier CI Slot 2 Main Menu CI Slot 2 Service Mode CI Slot 2 CA Specifier Audio1 Bit Rate Audio1 Sampling Frequency RECEIVER DECODER SYSTEM STREAM CI VIDEO AUDIO Signal Quality Eb N0 Viterbi Bit Error Rate Viterbi Rate Spectral Inversion Product Version Audio2 Bit Rate Audio2 Sampling Frequency Audio3 Bit Rate Audio3 Sampling Frequency Data1 HSD PID Decoded Teletext PID Decoded PCR ...

Страница 69: ...us Receiver Menu is input sensitive i e varies automatically according to the IRD Input option installed and provides a group of functions to monitor the input section of the IRD The next figure shows the menu options provided for the different front end interface The IRD Front Panel display controls and keypad are used to scroll through the menu view the options available and set the parameters o...

Страница 70: ... DSNG Receiver Status Menu Tree Structure RECEIVER STATUS DSNG Front End QPSK Front End QAM Front End Signal Quality Eb N0 Viterbi Bit Error Rate Viterbi Rate Spectral Inversion Signal Spectral Density Signal Level Link Margin Frequency Tune Pseodo Random Bit Seq R Solomon Bit Error Rate Modulation Mode Nyquist Filter Roll Off Signal Quality Eb N0 Viterbi Bit Error Rate Frequency Offset Viterbi Ra...

Страница 71: ...ays the margin between the input signal strength and the link margin standard as per Error Performance Requirements EN300 421 for QPSK input link and EN301 210 for DSNG input link Number is given in dB above dB or below dB the link margin standard Signal Level Input Signal Level Displays the signal level at the RF input to the receiver Number is given in dBm Signal Spectral Density Input Signal Sp...

Страница 72: ...ue Indicates the frequency offset between the expected carrier frequency as set in the Receiver Configuration Menu see paragraph 6 5 and the carrier frequency of the recovered signal at the antenna Number is given in KHz QAM Mode QAM IRD Operational Mode Displays the QAM mode active in the QAM IRD receiver as set in the Receiver Configuration Menu see paragraph 6 5 Options available 16 QAM Modulat...

Страница 73: ... 1923 241 357 6 9 2 Status Decoder Menu The Decoder Status Menu enables the IRD user to monitor the status of the decoder in the IRD The figure below shows the menu tree of status parameters available in the Decoder Status Menu password is required only if it was enabled previously The IRD Front Panel display controls and keypad are used to scroll through the menu view the options available and se...

Страница 74: ...r CI Slot 2 Main Menu CI Slot 2 Service Mode CI Slot 2 CA Specifier Audio1 Bit Rate Audio1 Sampling Frequency STREAM CI VIDEO AUDIO Audio2 Bit Rate Audio2 Sampling Frequency Audio3 Bit Rate Audio3 Sampling Frequency Data1 HSD PID Decoded Teletext PID Decoded PCR PID Decoded Data2 LSD PID Decoded ASI Output Format Network ID Stream Time Date Stream Services Count Service ID Service Provider Name Se...

Страница 75: ...nput stream data The figure below shows the menu tree of status monitoring options available in the Decoder Stream Status Sub Menu The table below describes the status parameters provided by the sub menu to the IRD operator Decoder Stream Status Sub Menu Tree Structure DECODER STREAM CI VIDEO AUDIO Data1 HSD PID Decoded Teletext PID Decoded PCR PID Decoded Data2 LSD PID Decoded ASI Output Format N...

Страница 76: ...me Current Network Name Displays the provider name of the current network in decimal Dec and hexadecimal Hex values Stream Time Date Current Stream Time Date Displays the time HH MM SS and date DD MM YYYY of the current incoming stream Stream Service Count Current Service Count Displays the service count of the current stream in decimal Dec values Service ID Current Service ID Displays the identif...

Страница 77: ... Displays the PID currently decoded for the audio_1 signal received Audio2 PID Decoded Current Audio2 PID Displays the PID currently decoded for the audio_2 signal received Audio3 PID Decoded Current Audio3 PID Displays the PID currently decoded for the audio_3 signal received Available ONLY in the L2202 Teletext PID Decoded Current Teletext PID Displays the PID currently decoded for the Teletext ...

Страница 78: ...CI Status Sub Menu The Decoder CI Status Sub Menu provides an extended menu of status monitoring options on the Common Interface CI data The figure below shows the menu tree of status monitoring options available in the Decoder CI Status Sub Menu The table below describes the status parameters provided by the sub menu to the IRD operator Decoder CI Status Sub Menu Tree Structure DECODER STREAM CI ...

Страница 79: ...rrently installed in SLOT 1 to the service currently received Options available NO CA DESCRIPTORS Service not encrypted NOT ENTITLED Service encrypted but module in SLOT 1 not entitled to it i e service not enabled ENTITLED Service encrypted and module in SLOT 1 entitled to it i e service enabled CI SLOT 2 Main Menu Slot 2 CI Module Name Provides the name of the module installed in SLOT 2 in accor...

Страница 80: ...deo Status Sub Menu The Decoder Video Status Sub Menu provides an extended menu of status monitoring options on the video data The figure below shows the menu tree of status monitoring options available in the Decoder Video Status Sub Menu Error Reference source not found describes the status parameters provided by the sub menu to the IRD operator Figure 0 4 Decoder Video Status Sub Menu Tree Stru...

Страница 81: ...ons available PAL B G PAL M NTSC PAL D SECAM PAL N Video Chroma Current Video Chroma Format Displays the Chroma format currently used for the incoming video stream Options available 4 2 0 4 2 0 and 4 2 2 are available only in L2202 Video Aspect Ratio Current Video Aspect Ratio Displays the aspect ratio for the incoming video stream Options available 4 3 16 9 Video Resolution Current Video Resoluti...

Страница 82: ...stered in London No 2074604 Web www linkres co uk Fax 44 0 1923 241 357 6 12 Decoder Audio Status Sub Menu The Decoder Audio Status Sub Menu provides an extended menu of status monitoring options on the audio data The figure below shows the menu tree of status monitoring options available in the Decoder Audio Status Sub Menu The table below describes the status parameters provided by the sub menu ...

Страница 83: ...o1 Bit Rate Displays the current Audio1 rate in bits sec Audio1 Sampling Frequency Current Audio1 Sampling Frequency Displays the current Audio1 sampling frequency in KHz Audio2 Bit rate Current Audio2 Bit Rate Displays the current Audio2 rate in bits sec Audio2 Sampling Frequency Current Audio2 Sampling Frequency Displays the current Audio2 sampling frequency in KHz Audio3 Bit Rate Current Audio3...

Страница 84: ... the System Status Menu options System Status Menu Tree RECEIVER DECODER SYSTEM Product Version CONFIG STATUS TEST RUN Main Status Display Initialization Password Product Serial Number System Status Menu Parameters OPTION DESCRIPTION Product Version Product Version Information Provides the current Version Code Date and Time Example format H W BOOTMAIN DATE 420 02 00 014 22 NOV 2000 Product Serial ...

Страница 85: ...ce 44 0 1923 200 909 Registered in London No 2074604 Web www linkres co uk Fax 44 0 1923 241 357 The IRD Front Panel display controls and keypad are used to scroll through the menu view the options available and set the parameters of the configuration functions provided Test Menu Tree Structure VITS Full Screen Test Audio1 Tone Test Decoding Test Pattern Audio2 Tone Test CONFIG STATUS TEST RUN Mai...

Страница 86: ...options None PAL B G PAL D SECAM PAL N these tests include display of Teletext information PAL M NTSC these tests include display of Audio1 and Audio2 information Audio1 Tone Test Audio 1 Tone Test This test option establishes the tone test for Audio 1 Test tone is between 1 KHz to 10 KHz Audio2 Tone Test Option Audio 2 Tone Test option This test option establishes the tone test for Audio 2 Test t...

Страница 87: ...the stream Service parameters or from the users PID parameters as set by the Decoder Stream Configuration Sub menu The figure below shows the IRD Run Menu tree and the options available to the user password is required only if it was enabled previously The IRD Front Panel display controls and keypad are used to scroll through the menu view the options available and set the parameters of the config...

Страница 88: ...trol the operation of the IRD using the Service parameters available in the PSI SI tables from the broadcaster When the IRD receives data from the service it is provided on the relevant menu screen on the IRD Front Panel LCD The figure below shows the menu tree flowchart for the Service Run Menu password is required only if it was enabled previously In addition a typical LCD screen is shown The to...

Страница 89: ...t and the audio type Musicam default no marking Dolby digital AC3 uncompressed LINEAR or Dual mono 2 MONO Example 001 French AC 3 Audio2 Sub Service Audio2 Sub Service Selection Enables selection of Audio2 Sub service contained within the main DVB Service The top line on the LCD displays the Audio 2 PID number The bottom line displays a list of all available services for selection The information ...

Страница 90: ...ain DVB Service The top line on the LCD displays the DVB SbtL PID number The bottom line displays a list of all available services for selection The information is provided as index number and the language format Example 007 Russian Data1 Sub Service Data1 Sub Service Selection Enables selection of the 1st Data Channel HS high speed data Sub service contained within the main DVB Service The top li...

Страница 91: ... 44 0 1923 200 909 Registered in London No 2074604 Web www linkres co uk Fax 44 0 1923 241 357 6 16 Run PID Menu The PID Run Menu enables the IRD user to control the operation of the IRD by setting the Packet Identifier PID parameters The figure below shows the menu tree flowchart for the PID Run Menu password is required only if it was enabled previously The table below describes the System Statu...

Страница 92: ...0 1FFF Hex Audio1 PID Component Sets values for Audio1 PID in Hexadecimal Accepted values 0020 1FFF Hex Audio2 PID Component Sets values for Audio2 PID in Hexadecimal Accepted values 0020 1FFF Hex Audio3 PID Component Sets values for Audio3 PID in Hexadecimal Available ONLY in the L2202 Accepted values 0020 1FFF Hex Teletext PID Sets values for Teletext PID in Hexadecimal Accepted values 0020 1FFF...

Страница 93: ...e Mode Run Menu enables the IRD user to control the operation of the IRD using the Packet Identifier PID parameters available from the IRD The figure below shows the menu tree flowchart for the PID Run Menu password is required only if it was enabled previously The table below describes the System Status Menu options Mode Run Menu Tree MODE RUN Video Operation Mode Audio1 Output Mode Audio2 Output...

Страница 94: ...signal in the Audio1 channel To restore the audio select the Unmute option Audio2 Output Mode Audio2 Output Control This sub menu is used to select the Audio2 mode of a current program The available options are Unmute the current analog audio is heard on Audio2 channel Mute Silences the analog audio signal in the Audio2 channel To restore the audio select the Unmute option Audio3 Output Mode Audio...

Страница 95: ...C Options available MONO MIXING Mixes left and right stereo channels signals for mono output on both LEFT and RIGHT channels STEREO LEFT RIGHT Standard stereo output on the respective LEFT RIGHT channels BOTH RIGHT Outputs right channels on both LEFT and RIGHT channels BOUT LEFT Outputs left channels on both LEFT and RIGHT channels SWAP LÆ RÆL Swaps outputs Left channels on RIGHT channels Right ch...

Страница 96: ... Run Menu password is required only if it was enabled previously The IRD Front Panel display controls and keypad are used to scroll through the menu view the options available and set the parameters of the configuration functions provided The Advance Run functions are grouped into three groups and are described in the following sub paragraphs Graphic Configuration GFX CNFG Sub Menu Graphic Display...

Страница 97: ... Sub Menu enables the IRD user to configure the graphics function provided by the IRD This function generates graphic overlays to be displayed over the video picture The figure below shows the menu tree flowchart for the Graphics Configuration GFX CNFG Sub Menu Tree password is required only if it was enabled previously The table below describes the setting functions Graphics Configuration GFX CNF...

Страница 98: ...king from DVB Subtitle No Page is more effective Background Color Background Color Select Selects the background color 16 options for the graphics overlay Available options Turquoise White Black Cyan Blue Grey Olive Green Magenta Purple Violet Brown Orange Pink Yellow Red Fonts Color Fonts Color Select Selects the color 16 options of the fonts displayed on the graphics overlay Available options Tu...

Страница 99: ... Tel 44 0 1923 200 900 Customer Support and Service 44 0 1923 200 909 Registered in London No 2074604 Web www linkres co uk Fax 44 0 1923 241 357 Graphics Configuration GFX CNFG Sub Menu Functions OPTION DESCRIPTION Y Position Offset Subtitle Offset Y Position Sets the vertical position y offset of the subtitle graphic overlay Teletext or DVB Range from 120 to 120 pixels y position offset ...

Страница 100: ...splay GFX DSPL Sub Menu The Graphics Display Sub Menu enables the IRD user to select the graphic overlays to be displayed over the video picture The figure below shows the menu tree flowchart for the Graphics Display GFX DSLP Sub Menu Tree password is required only if it was enabled previously Error Reference source not found describes the Sub Menu functions Figure 0 5 Graphics Display GFX DSPL Su...

Страница 101: ... PRODUCT REVISION PRODUCT SETUPS NONE No Product Status overlay NOTE Same pages marked by above require more than one page to display all information Pressing the ENTER Touch Pad on the Front Panel displays the next page Stream PSI SI Stream PSI SI Overlays Selects for display graphic overlays with data from the received stream PSI SI tables Options available PROGRAM ASSOCIATION TABLE PAT see exam...

Страница 102: ...1 TV GPI status CLOSE VIDEO operation mode PLAY VIDEO format PAL BG VIDEO chroma format 4 2 0 VIDEO bit rate dec 06960000 Bit Sec VIDEO resolution dec 480 576 VIDEO aspect ratio SOURCE 4 3 DISPLAY TRANSPARENT PAN SCAN ON VIDEO teletext info EVEN 05 ODD 05 EBU Subtitling page 541 AUDIO digital output MPEG DECODED IEC958 AUDIO1 analog output PLAY STEREO AUDIO1 bit rate dec 192000 Bit Sec AUDIO1 samp...

Страница 103: ...DES 00007006 VIDEO Config SECOND VIDEO ENCODER ON USER SETING Video Encoder OFF TELETEXT id 016 pts off start line 07 dis lines 20 5 0000 VIDEO Interval Test Signal VBI LINES 17 18 VIDEO Vertical Time Code VBI LINES 14 14 WIDE Screen Signaling ON MPEG VIDEO VIDEO Programming System OFF CLOSE Caption ON MPEG VIDEO SOUND Mode Control OFF OPTION CARD Config XILINX2 OPTION ON DIGITAL INTERFACE SDI ON ...

Страница 104: ...EG2 DVB DEMUX DMX GTX C0 Microcode 1 30 A V DECODER AVIA 60xL E0 Microcode 0 22 VIDEO ENCODER SAA7129 H AUDIO DAC CS4341 A XILINX1 XCS40xl A BACK PANEL OPTION OPTIMA A 0334 AUDIO2 DECODER CS4922 A Microcode 4 01 XILINX2 XCS40xl A PRODUCT SERVICE SETUPS Num Frequency GHz Symbol R Msm Viterbi LNB Service ID 000 01 488000 27 50000 AUTO 18V 22KHz 0x0006 001 01 488000 27 50000 AUTO 18V 22KHz 0x0001 002...

Страница 105: ...erlay Example HEADER Information Current Applicable Version 04 with 001 001 Sections Transport Stream ID 00C8 Network PID 0010 Program num Program Map PID 0001 0400 0002 0401 0003 0402 0004 0403 0005 0404 0006 0405 0007 0406 0008 0407 0009 0408 000A 0409 HEADER Information Current Applicable Version 1B with 001 001 Sections Program info Pcr PID 00A5 Stream Type PID ES_info Video MPEG2 00A5 CA Desc...

Страница 106: ...eration may result in unpredictable performance HEADER Information Current Applicable Version 16 with 001 001 Sections Service Type Descriptor 0001 Encrypt Digital Television MTV Networks MTV2 Pop Channel 0002 Encrypt Digital Television MTV Networks MTV 3 0003 Encrypt Digital Television MTV Networks Bloomberg 0004 Encrypt Digital Television MTV Networks MTV2 0005 Encrypt Digital Television MTV Net...

Страница 107: ...ns are for qualified personnel only To reduce the risk of shock and damage to equipment do not perform any servicing and maintenance unless you are qualified to do so 7 2 1 Safety Precautions The equipment described in this manual contains parts that are connected to the electrical power supply This is a potentially lethal voltage For correct and safe use of IRD equipment it is essential that oper...

Страница 108: ...or must be connected to the L2201 in order to perform the check The table below provides a systematic instruction for performing a serviceability check Serviceability Check CHECK 1 Verify that the LCD Status Message reads ALL OK 2 Check for Video Picture on monitor 3 Toggle between Composite and S VIDEO modes 4 Check Audio channels Left and Right 7 3 3 Audio Video Stream Test In the event that no ...

Страница 109: ... structure of the message and the table lists and describes the messages available General Status Message Example ALL OK TV FRE Service MTV Top Line Bottom Line The top line consists of three fields a Left field the message as listed in the table below b Center to the right field when ALL OK message is displayed this field displays the service type provided TV Radio DATA etc c Right field when ALL...

Страница 110: ...ware Failure Messages PROBLEM TYPE POSSIBLE REASON CORRECTIVE ACTION Demux GTX Failure Fault Hardware Problem Repair in Link Research Audio Video Decoder Failure Fault Hardware Problem Repair in Link Research Audio2 Decoder Failure Fault Hardware Problem Repair in Link Research Video Encoder1 Failure Fault Hardware Problem Repair in Link Research Video Encoder2 Failure Fault Hardware Problem Repai...

Страница 111: ...It also advises the corrective action required BIT Stream Warning Message Example BIT Stream Warning Signal Not Recived Top Line Bottom Line The top line displays the BIT Stream Warning Message The bottom line displays the problem type Bit Stream Warning PROBLEM TYPE POSSIBLE REASON CORRECTIVE ACTION RECEIVER Signal Not Received Warning Input Signal Problem Set to correct parameters Demodulator No...

Страница 112: ...he messages and provides information about the detected failure types possible reasons for the failure It also advises the corrective action required to mend it Service Warning Message Example Service Warning Encrypted not entitled Top Line Bottom Line The top line displays the BIT Stream Warning Message The bottom line displays the problem type Service Warning SERVICE WARNING TYPE POSSIBLE REASON...

Страница 113: ...ut Type Audio2 Output Type Audio3 SubService Audio2 SubService Audio2 Tone Test Audio2 Bit Rate Audio2 Sampling Frequency Audio3 Bit Rate Audio3 Sampling Frequency Data1 HSD PID Decoded Teletext PID Decoded PCR PID Decoded Data2 LSD PID Decoded ASI Output Format Network ID Stream Time Date Stream Services Count Service ID Service Provider Name Service Type Service CA Mode Service CA System Type Au...

Страница 114: ......

Страница 115: ... Data1 HSD PID Decoded Teletext PID Decoded PCR PID Decoded Data2 LSD PID Decoded ASI Output Format Network ID Stream Time Date Stream Services Count Service ID Service Provider Name Service Type Service CA Mode Service CA System Type Audio2 PID Decoded Video PID Decoded Network Name Audio1 PID Decoded Audio3 PID Decoded LNB Local Oscillator LNB Power Supply Transponder Frequency Symbol Rate Viter...

Страница 116: ......

Страница 117: ... Data1 HSD PID Decoded Teletext PID Decoded PCR PID Decoded Data2 LSD PID Decoded ASI Output Format Network ID Stream Time Date Stream Services Count Service ID Service Provider Name Service Type Service CA Mode Service CA System Type Audio2 PID Decoded Video PID Decoded Network Name Audio1 PID Decoded Audio3 PID Decoded Input Signal Source Freq Drift Compensation Control Port Address Session Word...

Страница 118: ......

Страница 119: ...pling Frequency Data1 HSD PID Decoded Teletext PID Decoded PCR PID Decoded Data2 LSD PID Decoded ASI Output Format Network ID Stream Time Date Stream Services Count Service ID Service Provider Name Service Type Service CA Mode Service CA System Type Audio2 PID Decoded Video PID Decoded Network Name Audio1 PID Decoded Audio3 PID Decoded Control Port Address Session Word RECEIVER DECODER SYSTEM Tran...

Страница 120: ......

Страница 121: ...ampling Frequency Data1 HSD PID Decoded Teletext PID Decoded PCR PID Decoded Data2 LSD PID Decoded ASI Output Format Network ID Stream Time Date Stream Services Count Service ID Service Provider Name Service Type Service CA Mode Service CA System Type Audio2 PID Decoded Video PID Decoded Network Name Audio1 PID Decoded Audio3 PID Decoded ATM Mode VPI Address VCI address Control Port Address Sessio...

Страница 122: ...4 Web www linkres co uk Fax 44 0 1923 241 357 Appendix A Appendix 1 Operational Menu Trees The Operational Menus provided on the front panel of L2201 and L2202 Integrated Receiver Decoders enables the operator to control configure and monitor the operation of the IRD according to the parameters required by the particular DVB System Navigation in the operational trees requires prior knowledge of th...

Страница 123: ... Configuration see Figure A 4 ATM DVB PDH Configuration see Figure A 5 All configurations share a common initialization phase and Main Menu structure as described in paragraph 0 Common Status Messages will also be displayed on the LCD in case of hardware failure or general purpose information For a description of the Status Messages please refer to paragraph 7 4 A dotted menu selection in the diag...

Страница 124: ...coax cable would result in very high signal loss This is why the LNB also converts the signal into a lower frequency The LNB Frequency determines over how many Mhz the signal is converted downwards B 2 Example 11929 Mhz Satellite frequency 10750 Mhz LNB frequency 1179 Mhz Signal frequency to IRD The signal that is sent from the LNB to the IRD device has to be within the IRD input frequency range 0...

Страница 125: ...41 357 B 4 Use of a Splitter or Distribution band Amplifier When multiple IRDs are receiving their signal from one satellite dish a passive splitter or active distribution amplifier splitter can be used The following figure displays signal reception for multiple IRDs Figure B 7 Basic Set Up For IRDs Sharing One Satellite Reception Dish Satellite Satellite dish Scopus IRD Frequency range of satelli...

Страница 126: ...e calculation of the reception range of this example set up is as shown below Combined frequency range 950 MHz 2000 MHz Amplifier IRD Example LNB frequency 10750 MHz System Input frequency range 950 10750 2000 10750 MHz 11700 MHz 12750 MHz B 5 Calculating the L Band Frequency B 6 To calculate the L Band Frequency L Band frequency FS FLO Where FS TRANSPONDER TRANSMITTING FREQUENCY FLO LNB LOCAL OSC...

Страница 127: ...Calculating Symbol Rate D 2 To Calculate the Symbol Rate for QPSK configuration Symbol Rate 2 FEC BR MSymbol sec Where BR Bit Rate FEC Forward error correction Viterbi rate x Reed Solomon rate FEC Viterbi rate x 204 188 D 3 To Calculate the Symbol Rate for QAM configuration Symbol Rate sec _ _ _ Re Msymbols QAM x Solomon ed BR Where BR Bit Rate Reed Solomon 204 188 QAM 4 for QAM 16 5 for QAM 32 6 ...

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