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Emitor International AB Ostmastargrand 12 SE

1. an OVE Am 1 sae mm Daemones _ see A Er 15 05 2010 1665 WE media 139 e m 20040002190 ME medail d Gate x Ims eee Once a firmware file is selected download will begin and take about 25 minutes 36 13V Vertical 22 KHz Off Low Band 13V Vertical 22 KHz On Hi Band 18V Horizontal 22 KHz Off Low Band 18V Horizontal 22 KHz On Hi Band Appendix A Universal LNB Primer The LNB low noise block amplifier has evolved since its early introduction in Satellite broadcasting Signals broadcast from satellites are 10600 MHz to 12700 MHz for Ku band and 3000 MHz to 4500 MHz for C band Because the losses in coax are quite high for these frequencies the satellite signal is first downconverted to a more manageable 950 MHz to 2150 MHz for transmission from the dish to the receiver This is called the IF intermediate frequency or also the L Band Most of the European broadcasting is in the Ku band The satellite transmission can use either horizontal or vertical polarisation This is a way of re using the available spectrum since there can be two transponders at the same frequency with different polarisations The Universal LNB can receive either horizontal or vertical polarisations depending on the LNB line voltage 13V is used to select Vertical polarisation and 18V is used to select Horizont
2. Auto Att restores automatic control of the attenuator and the value chosen is shown on the LCD display 1 DVB T Starts the DVB T module See Digital Picture TV operation on page 28 2 Usr Span Sets the spectrum display to a user defined portion of the spectrum The User span is set up using the Memory Function TV described on page 27 3 Span 13 or Span 900 This toggles the spectrum span to 13MHz or 900 and centers the spectrum on the marker position 4 Max Hold Holds the highest signal levels recorded until cancelled Max hold is useful for monitoring a certain frequency range for changes You may see how if temporary signals disturbances can affect a network s quality 5 Center Places the marker frequency at the center of the spectrum using the current span setting 6 Setup See the Setup TV on page 30 27 7 Ref Mrkr Sets a reference marker so that differential readings can be made See Signal to Noise Ratio Measurements on page 31 8 Beeper The Beeper function is enabled or disabled and can be used to provide an audio signal of the signal level at the marker position It measure at a single carrier Channel which is tuned in by using the knob 9 Memory Save or recall setting from TV memory See Memory Operation TV on page 27 0 Digital Digital dB or Channel Power Measurement See page 36 Memory Operation TV Memory storage exists in several different forms in the TV Mode for the
3. Combolook Color HD S2 T2 C User Manual combolook Emitor International Ostmastargrand 12 lt gt 55 120 40 Stockholm Sweden e m t O r 7 Phone 46 0 8 5333 40 70 Fax 46 0 8 5333 40 71 International AB www emitor se Thank You for purchasing the Emitor International Combolook Color HD S2 T2 C instrument This manual covers the operation and maintenance of the Emitor International AB Combolook Color HD S2 T2 C instrument used for satellite dish alignment TV and CATV alignment and signal analysis All information in this publication is based on the latest product information available at the time of printing Emitor International AB reserves the right to make changes at any time without notice and without incurring any obligation No part of this publication may be reproduced without written permission This manual should be considered a permanent part of the instrument and should remain with it if the instrument is resold If a problem should arise or if you have any questions about the instrument consult an authorized Emitor International AB dealer Notice Operating the Combolook Color S2 T2 C instrument requires special skills Please read this User Manual thoroughly before operating the instrument Updated Sept 5 2012 Contents Overview Unpacking Operating Controls LCD Remote Control Satellite Instrument Mode Spectrum Operation Satellite Digital Mode Satellite
4. 1 Atten OFF 501 Eqc Setup 7892an z Beeper ASTRA 8 5 ie 013 18 22EHZ The Spectrum Mode is displayed when the instrument is turned on in Satellite mode With a dish and LNB connected it will show a display similar to that above The spectrum is displayed with the Start frequency at the top of the screen and the Stop frequency at the bottom The Span is the total frequency coverage or the difference between Stop frequency and Start frequency The current signal level 14 3 dBmV in this example is displayed for the frequency at the Marker The knob is used to change this to the frequency of interest When Spectrum Mode is entered the peaks are checked to see if the demodulator can lock If a lock occurs the NIT data for the transponder is displayed for automatic satellite identification NIT data on a transponder is repeated at least every 10 seconds and on most satellite more often than this The span of the Spectrum can be changed in two ways Pressing the keypad 3 Span will change the spectrum to the minimum span of 250MHz For this span each division is 1MHz An alternate method is to use the adjustable span Pressing the knob allows the span to be adjusted from a minimum of 250MHz to the maximum of 1231MHz At this maximum span the entire IF band from 920MHz to 2150 is displayed When span is adjusted by pressing the knob a second press of the knob allows the DC Offset of the spectrum to b
5. 191 25 MHz 199 25 MHz 207 25 MHz 215 25 MHz 223 25 MHz 231 25 MHz 247 25 MHz 255 25 MHz 263 25 MHz 271 25 MHz 279 25 MHz 287 25 MHz 295 25 MHz 319 25 MHz 343 25 MHz 351 25 MHz 359 25 MHz 367 25 MHz 375 25 MHz 383 25 MHz 391 25 MHz 54 27 28 29 30 021 022 023 024 025 026 027 028 029 030 399 25 2 415 25 2 423 25 2 431 25 2 471 25 2 479 25 2 487 25 2 495 25 2 503 25 2 511 25 2 519 25 2 527 25 2 535 25 2 543 25 2 55 South Africa o 11 12 13 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 175 25 MHz 183 25 MHz 191 25 MHz 199 25 MHz 207 25 MHz 215 25 MHz 223 25 MHz 231 25 MHz 239 25 MHz 247 25 MHz 471 25 MHz 479 25 MHz 487 25 MHz 495 25 MHz 503 25 MHz 511 25 MHz 519 25 MHz 527 25 MHz 535 25 MHz 543 25 MHz 551 25 MHz 559 25 MHz 567 25 MHz 575 25 MHz 583 25 MHz 56 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 647 25 MHZ 655 25 MHZ 663 25 MHZ 671 25 MHZ 679 25 MHZ 687 25 MHZ 695 25 MHZ 703 25 MHZ 711 25 MHZ 719 25 2 727 25 MHZ 735 25 MHZ 743 25 MHZ 751 25 MHZ 759 25 MHZ 767 25 MHZ 775 25 MHZ 783 25 MHZ 791 25 MHZ 799 25 2 807 25 MHZ 815 25 2 823 25 MHZ 831 25 MHZ 839 25 MHZ 847 25 MHZ 36 37 38 39 40 41 42 591 25 MHz 599 25 MHz 607 25 MHz 615 25 MHz 623 25 MHz 631 25 MHz 639 25 MHz
6. RS232 This port is used for firmware updates and updates of channel information Video and Audio Output The video and audio signal can be output to another device for viewing LCD The LCD window shows the current functions available using the kedjad or remote For each function the keypad number is shown to the left Also shown is the current status of the LNB the knob operation mode and the battery external power Shown below is the LCD display in the Spectrum mode Turning the knob will adjust frequency LNB power 13V or 18V FREG lPicture Battery state or power supply connected Enter Digital Mode using the keypad 2 Switch the LNB 13V 18V using the keypad 0 Switch the LNB 22kHz signal on or off using the keypad When the operation can use a memory location the lower portion of the LCD shows the current memory selection For this case the knob is used to change the memory position number that the Save will use Turning the knob will select the location memory Memory position and name Remote Control Power Not used Exit keypad Used for keypad which is 22kHz control to select band Previous channel Satellite Instrument Mode Spectrum Operation Sat Start FREG ML EXT uu a ct Marker 1 91 T ns 3Span Hin 14 3 4
7. 4 Auto Adapter cord Car charger 12V Operating Controls The side view of the Combolook Color HD S2 T2 C is shown below with the operating controls indicated Video ond Audio Output CATY TV Antenna Input RF Input from LNB for Sat TV Audio Volume and Tuning Power Switch On battery power this turns the instrument on and off When the charger is connected the instrument will charge with the switch off and operate when on The instrument will not charge when operating Charger Powsr input Charger Power Input The instrument can be charged or operated using either the supplied 14V power supply or from a 12V car cigarette lighter plug using the supplied connector Keypad This is used to select most of the functions from the menu RF Input from LNB This is the LNB input lt supplies 13V 18V and the 22kHz signal when required Audio Volume The audio volume can be adjusted for either the Digital reception Tuning Knob This knob is used for frequency selection and other functions The knob includes a push button that is used for selection In the Spectrum mode the tuning knob is used for frequency adjustments bandwidth span adjustments and signal Offset level The knob button is used to change the mode In the Digital Picture mode the knob is used to select the next picture and for memory selections In the Digital mode the knob is used for frequency selection and memory selection
8. Digital Mode Functions Satellite Digital Picture Mode Satellite Memory Operation Satellite Text Editor Satellite DiSEqC Satellite Setup Satellite Special Functions Satellite SatCR LNB Functions Satellite TV Instrument Mode Digital TV DVB T T2 C Operation Beeper Digital readout Channels Spectrum Operation TV Main Menu TV Memory Operation TV Setup TV Signal to Noise Ratio Measurements TV Channel Power Measurement TV Using PC to Transfer Transponder Data Loading Firmware Appendix A Universal LNB Primer Appendix DiSEqC Primer Appendix DVB S and DVB S2 Primer Appendix D SatCR Primer Appendix Television Channel Tables Appendix F DVB T T2 Principles Appendix Maintenance Appendix H Specifications Glossary 31 Overview The Emitor Combolook Color HD S2 T2 C is a Swedish designed Satellite DVB S S2 and Terrestrial DVB T T2 instrument and spectrum analyzer The unit is designed for the exact alignment and adjustment of satellite dishes and terrestrial antennas This instrument is intended to be used by the professionals when accurate and precise information is needed With ease of operation through powerful processor technology basic operation is achieved with only a few controls The functions are easy to access and only take minutes to learn Many functions can be controlled by the enclosed Remote control A 5 inch 16 9 color TFT LCD display
9. MHz 775 25 MHz 783 25 MHz 791 25 MHz 799 25 MHz 807 25 MHz 815 25 MHz 823 25 MHz 831 25 MHz 32 33 34 35 36 37 38 39 40 559 25 MHz 567 25 MHz 575 25 MHz 583 25 MHz 591 25 MHz 599 25 MHz 607 25 MHz 615 25 MHz 623 25 MHz 52 67 68 69 70 71 72 73 74 75 839 25 MHz 847 25 MHz 855 25 MHz 863 25 MHz 871 25 MHz 879 25 MHz 887 25 MHz 895 25 MHz 903 25 MHz UK 2 O N NY NY YN a a a a 2 a 23 a a OO N 2 YN O A OO N gt 120 00 MHz 128 00 MHz 136 00 MHz 144 00 MHz 152 00 MHz 160 00 MHz 168 00 MHz 176 00 MHz 184 00 MHz 192 00 MHz 200 00 MHz 208 00 MHz 216 00 MHz 224 00 MHz 232 00 MHz 240 00 MHz 248 00 MHz 256 00 MHz 264 00 MHz 272 00 MHz 280 00 MHz 288 00 MHz 296 00 MHz 304 00 MHz 312 00 MHz 320 00 MHz 328 00 MHz 53 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 336 00 MHz 344 00 MHz 352 00 MHz 360 00 MHz 368 00 MHz 376 00 MHz 384 00 MHz 392 00 MHz 400 00 MHz 408 00 MHz 416 00 MHz 424 00 MHz 432 00 MHz 440 00 MHz 448 00 MHz 456 00 MHz 464 00 MHz 472 00 MHz 480 00 MHz 488 00 MHz 496 00 MHz 504 00 MHz 512 00 MHz 520 00 MHz 528 00 MHz 536 00 MHz 544 00 MHz UK 3 OC on gt NY NY a a 2 sa 2 a 2a a a Oo Bb Y N gt O O N O OO N 55 25 MHz 135 25 MHz 159 25 MHz 175 25 MHz 183 25 MHz
10. They may appear in two orientations as shown below The target boxes will move to the ideal positions for the 8PSK Constellation presentation IQ CONSTELLATION 00 00 17 2 3 CONSTELLATION 7 07 12 Digital Mode Functions Satellite 00 10 06 DVB QPSK 5 6 FREU MER 15 13 EXT opr LEE 3Hemory 4Channel 5DiSEqc z Beeper FREQ 10729 1 0 MHz 0137184 SR 21999 KSym s H 22KHZ BER SNR 2 5 08 15 6dB Search A signal search can be initiated by using the keypad 1 Search to search with increasing frequency or 2 Search with decreasing frequency The search mode moves to the next peak in the spectrum and attempts a lock for DVB S QPSK DVB S2 QPSK and DVB S2 8PSK signals The symbol rate is determined automatically Because the time to lock for low symbol rate signals increases the lower the symbol rate symbol rate signals below about 16000 will not lock during a search Memory Frequencies are stored in the Digital memory See Memory page 13 Channels When a signal is locked the Digital services from the SDT Service Information will be displayed on the TFT screen DiSEqC DiSEqC commands can be initiated See DiSEqC page 18 Beeper Enables or disables the Beeper at the frequency 13 18V Switches the LNB voltage between 13V and 18V 22kHz Switches the LNB 22kHz signal which switches between Lo b
11. and span so that sections of the spectrum can be easily recalled by using the Usr span function on the TV Spectrum menu When a desired spectrum presentation is displayed press Memory gt Usr span gt Save and choose the memory position 1 8 to save this User Span Memory gt Usr span gt Delete This deletes a User Span setting Choose the User Span to delete Picture gt Memory gt Save When a TV channel is selected it can be saved as a favourite channel so that can be easily selected When the correct channel is displayed in the Picture mode press Memory and then use the knob to select the memory location to 28 store the channel frequency Displayed at the bottom of the LCD screen The LCD display will either show that the memory location is Used and show the channel number or will show the memory location is Free Press Save to save the frequency data This is now a favourite and can be selected by the knob when in FAVORITE mode When in picture mode the knob 15 first in FREQ mode so that the knob will change the frequency One push of the knob button changes the knob mode to CHANNEL mode and turning the knob selects the channel using the current channel table One more press of the knob button changes the knob mode to FAVORITE and the saved favourite channels are selected by turning the knob Picture gt Memory gt Delete To delete a previously saved Favo
12. band and Hi band for Universal LNBs 11 Digital Satellite IQ CONSTELLATION 00 24 QPSK 5 6 14 298 3 4E 07 51 dBm FREQ 10757 0 7 MHz SR 21996 KSym s BER SNR This shows a typical constellation from a DVB S QPSK signal The frequency and offset are shown below the constellation diagram and the measured symbol rate is shown below the frequency The two thermometer bars show the BER and SNR of the signal The SNR thermometer increases from right to left and the BER thermometer gets smaller from right to left so that the best signal is shown by a longer white bar The lock time is shown at the top right and below this the signal modulation and FEC The MER Modulation Error Ratio and the Output Bit Rate for the total transport stream is also shown The signal level at the tuned frequency is shown below the Output Bit Rate When the NIT information is available the NIT name and NIT Orbital Position appear Reading the SDT data from the transponder shows the number of Free to Air channels A running count of the CB Corrected Bit and UCB Uncorrected Block errors is shown as long as the signal is locked For DVB S2 the BER count is not available and the BER shown is an estimate formed from the Total Block Count Correctable Block Count and Bad Block Count It is recommended to use MER for DVB S2 optimization When the modulation is DVB S2 8PSK the constellation is shown with target boxes overlayed
13. is provided which shows MPEG2 Free to air satellite terrestial and Cable TV channels transmitted in DVB S DVB T or DVB C It also displays the frequency spectrum and digital information regarding the signal Menus and help displays are shown on the LCD screen 64x128 beside the monitor and a keypad is used for the function selection The knob is used for frequency and other operations A remote control is provided which allows most of the keypad commands to be used to control the instrument The mode of operation is selected at power on and to conserve battery life only the necessary functions are enabled Switching modes can be done at power on or by menu selection Satellite TV DVB S S2 Instrument Mode The Spectrum shown enables the measurement of the satellite spectrum in resolution steps of 1 MHz to 10 MHz making it easy for the skilled installer to know what satellite he is receiving and make more detailed measurements The Spectrum function spans the requency band 920 2150 MHz and can be expanded from 4 MHz down to 1 MHz steps Automatic frequency conversion to the user defined LNB type is shown on screen so no calculations are needed to determine the Satellite frequency Cross polarization at a requency can be easily checked with the cross polarization function The instrument has high resolution for accuracy It presents measured data 2 dB at 200 C Frequency tuning is done with the main knob in frequency steps bet
14. signal This gives 4 possible states for each sampling interval The sampling interval is called the Symbol Rate and each state of 2 bits is a Symbol During transmission this data is interleaved to allow recovery during noise bursts and redundant data 15 added called FEC forward error correction During reception the data 15 re shuffled to restore the order and the FEC data is used to correct the bitstream as necessary In DVB S2 8PSK octal phase shift keying can be used in transmission where there are 8 possible states from a 45 degree phase shift in the Analog signal A different scrambling and FEC for DVB S2 allows better noise immunity The bitstream output for both DVB S and DVB S2 is the same This bitstream is called transport stream A transport stream is made up of packets All packets are the same length of 188 bytes and they all start with the sync byte 0x47 so that when the data is read a starting point can be located Each packet also contains a PID packet identification The information in the transport stream consists of several video and audio streams and also SI tables Service Information to allow the receiver to decode and display the correct data There are several types of tables in the SI called PSI data This table data is generally longer than one packet so several packets are assembled together to make a section which can be up to 1024 bytes 1 Program Association Table PAT for each service in the mul
15. two ways Pressing the keypad 3Span will toggle the spectrum to the minimum span 13MHz and the maximum span of 900MHz For this minimum span each division is 50 kHz An alternate method is to use the adjustable span Pressing the knob allows the span to be adjusted from a minimum of 13Mhz to the maximum of 900MHz At the maximum span the entire IF band from 2MHz to900MHz 15 displayed When span is adjusted by pressing the knob a second press of the knob allows the knob to control the insertion of attenuation from OdB to 45dB as indicated on the display DC Offset of the spectrum to be adjusted for best display A further press of the knob restores the operation to frequency adjustment The span setting from the knob remains as the current setting The DC Offset is restored to 0 The current video bandwidth VBW and Resolution Bandwidth RBW are shown These can automatically or manually set in the Setup Menu Main Menu TV In the LCD display the knob function FREQ SPAN ATTEN is shown and also shown is the status of the Power Inserter to use with amplified antennas push the knob to change mode Tune the Frequency up down when FREQ is displayed in the LCD Increase decrease the span of the spectrum when SPAN is displayed in the LCD Insert attenuation OdB to 45dB in the signal path The knob controls the attenuation inserted and the value inserted is reported at the bottom of the LCD display Pressing
16. 5 2 207 25 2 215 25 2 223 25 2 231 25 MHZ 239 25 2 247 25 MHZ 255 25 2 263 25 2 271 25 2 279 25 2 287 25 2 295 25 2 526 527 528 529 530 531 532 533 534 535 536 537 538 22 23 24 25 26 27 28 29 K30 K31 47 367 25 MHz 375 25 MHz 383 25 MHz 391 25 MHz 399 25 MHz 407 25 MHz 416 25 MHz 423 25 MHz 431 25 MHz 439 25 MHz 447 25 MHz 455 25 MHz 463 25 MHz 471 25 MHz 479 25 MHz 487 25 MHz 495 25 MHz 503 25 MHz 511 25 MHz 519 25 MHz 527 25 MHz 535 25 MHz 543 25 MHz 551 25 MHz K40 K41 K42 K43 K44 K45 K46 K47 K48 K49 K50 K51 K52 K53 K54 55 56 57 K58 K59 K60 K61 K62 K63 518 519 520 521 522 523 524 525 303 25 MHZ 311 25 MHZ 319 25 MHZ 327 25 MHz 336 25 MHz 343 25 MHz 351 25 MHz 359 25 MHz K32 K33 K34 K35 K36 K37 K38 K39 48 559 25 MHz 567 25 MHz 576 25 MHz 583 25 MHz 591 25 MHz 599 25 MHz 607 25 MHz 615 25 MHz K64 K65 K66 K67 K68 K69 Italy nm oou gt T sr N 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 53 75 MHz 62 25 MHz 82 25 MHz 175 25 MHz 183 75 MHz 192 25 MHz 201 25 MHz 210 25 MHz 217 25 MHz 224 25 MHz 471 25 MHz 479 25 MHz 487 25 MHz 495 25 MHz 503 25 MHz 511 25 MHz 519 25 MHz 52
17. 57 69 70 71 72 73 74 75 855 25 MHz 863 25 MHz 871 25 MHz 879 25 MHz 887 25 MHz 895 25 MHz 903 25 MHz Australia 10 11 12 21 22 23 24 25 26 27 28 29 30 31 32 46 25 MHz 57 25 MHz 64 25 MHz 86 25 MHz 95 25 MHz 102 25 MHz 138 25 MHz 175 25 MHz 182 25 MHz 189 25 MHz 196 25 MHz 209 25 MHz 216 25 MHz 224 25 MHz 478 25 MHz 485 25 MHz 492 25 MHz 499 25 MHz 506 25 MHz 513 25 MHz 520 25 MHz 527 25 MHz 534 25 MHz 541 25 MHz 548 25 MHz 555 25 MHz 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 58 604 25 MHZ 611 25 2 618 25 MHZ 625 25 2 632 25 2 639 25 MHZ 646 25 MHZ 653 25 2 660 25 MHZ 667 25 MHZ 674 25 MHZ 681 25 2 688 25 2 695 25 MHZ 702 25 2 709 25 MHZ 716 25 MHZ 723 25 MHZ 730 25 2 737 25 MHZ 744 25 2 751 25 MHZ 758 25 MHZ 765 25 2 772 25 MHZ 779 25 2 33 34 35 36 37 38 562 25 MHz 569 25 MHz 576 25 MHz 583 25 MHz 590 25 MHz 597 25 MHz 65 66 67 68 69 59 786 25 MHz 793 25 MHz 800 25 MHz 807 25 MHz 814 25 MHz Appendix F DVB T T2 Principles DVB T uses OFDM orthogonal frequency division multiplex modulation This type of modulation which uses a large number of sub carriers delivers a robust signal that has the ability to deal with very severe channel conditions The DVB T standard has technical characteristics that make it very flexible sy
18. 7 25 MHz 535 25 MHz 543 25 MHz 551 25 MHz 559 25 MHz 567 25 MHz 575 25 MHz 583 25 MHz 49 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 647 25 MHz 655 25 MHz 663 25 MHz 671 25 MHz 679 25 MHz 687 25 MHz 695 25 MHz 703 25 MHz 711 25 MHz 719 25 MHz 727 25 MHz 735 25 MHz 743 25 MHz 751 25 MHz 759 25 MHz 767 25 MHz 775 25 MHz 783 25 MHz 791 25 MHz 799 25 MHz 807 25 MHz 815 25 MHz 823 25 MHz 831 25 MHz 839 25 MHz 847 25 MHz 36 37 38 39 40 41 42 591 25 MHz 599 25 MHz 607 25 MHz 615 25 MHz 623 25 MHz 631 25 MHz 639 25 MHz 50 69 70 71 72 73 74 75 855 25 MHZ 863 25 MHZ 871 25 MHZ 879 25 2 887 25 MHZ 895 25 MHZ 903 25 MHZ UK 1 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10 B11 B12 B13 B14 21 22 23 24 25 26 27 28 29 30 31 45 00 MHz 51 75 MHz 56 75 MHz 61 75 MHz 66 75 MHz 179 75 MHz 184 75 MHz 189 75 MHz 194 75 MHz 199 75 MHz 204 75 MHz 209 75 MHz 214 75 MHz 219 75 MHz 471 25 MHz 479 25 MHz 487 25 MHz 495 25 MHz 503 25 MHz 511 25 MHz 519 25 MHz 527 25 MHz 535 25 MHz 543 25 MHz 551 25 MHz 51 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 631 25 MHZ 639 25 MHZ 647 25 MHZ 655 25 MHZ 663 25 MHZ 671 25 MHZ 679 25 MHZ 687 25 MHZ 695 25 MHZ 703 25 MHZ 711 25 MHZ 719 25 MHZ 727 25 MHZ 735 25 MHZ 743 25 MHz 751 25 MHz 759 25 MHz 767 25
19. AM s between QAM16 to QAM256 Symbolrate approx Channels wil ch 23 display the existing TV channels at a certain transmitter in this example The green colored channels are FTA Free to air and can be viewed upon The red colored channels are not accessible coded or other services 25 Chose to look at a channel by pressing the open button 3 2 will step to the next green channel in the list 3 will step to the previous green channel in the list Spectrum Operation TV Start 732 55MHz Stop 745 SSMHz Span 13 00MHz Marker 743 25MHz Ch ESS 53 3 ATT 848 1KHz RBW 300KHz 1Picture Zllsr span 35pan 300 Setup Ref mrkr SOUE T 3Memor y 001 git al When the Combolook Color S2 T2 is first turned on in TV mode the spectrum is displayed Upon connection of an aerial or CATV source it will show a display similar to that above This portion of a spectrum shows a digital TV signal and an analog TV signal at the marker frequency The spectrum is displayed with the Start frequency at the top of the screen and the Stop frequency at the bottom The Span is the total frequency coverage or the difference between Stop frequency and Start frequency The current signal level 53 3 26 dBuV in this example is displayed for the frequency at the Marker The knob is used to change this to the frequency of interest The span of the Spectrum can be changed in
20. Combolook The memory can be used to save and retrieve Spectrum samples User Span settings and TV Picture tuning favourite settings The memory positions for Spectrum User Span and Picture memory are in different areas From the Spectrum display Memory gt Spectrum gt Save This saves the current displayed spectrum for later review and processing To save the current spectrum press Memory Spectrum and the memory location to be used is displayed at the lower right of the TFT screen There are 99 memory positions available which can be selected using the knob When the desired location is displayed press Save to save the spectrum Positions are marked to show if they are used or free Memory gt Spectrum gt Load This loads a saved spectrum for review or processing To load a saved spectrum press Memory Spectrum and the memory location to be loaded is displayed on the TFT screen at the lower right When the desired memory location is selected using the knob press Load to show the saved spectrum Memory gt Spectrum gt Delete This deletes a memory position To delete a memory position use the knob to select the memory position as displayed on the TFT screen at the lower right Once the desire memory location is selected press Delete and the memory position is now free Memory gt Usr span gt Save This saves the current spectrum settings of marker frequency
21. France Poland Italy UK1 UK2 UK3 South Africa and Australia Details for these channel tables are shown in Appendix E Vid BW The Video filter is placed after the measuring chip set in the instrument and is used in conjunction with various resolutions within a specified bandwidth The resolution of details on a signal carrier is progressively refined in relation to the narrowing of a filter sweep time is increased The different Video filters are auto mode default 100 kHz 10 kHz 1 kHz or 100 Hz Res BW The resolution bandwidth shows the incoming signal before the measuring chip set in the instrument Choose between the narrow 300 kHz or the wider 1 MHz resolution The instrument is normally working the mode AM Marker Choose between FM or AM marker FM Normal spectrum measuring AM Peak spectrum measuring which is preferable when measuring TV signals due to the speed at which calculations are processed SAT TV The instrument mode when turned on can be selected to start either in TV mode or Satellite mode A third option is available which will ask the user on startup to select the mode If no selection is made within 20 seconds the instrument will turn off Version The version menu displays serial number levels of the firmware and related information 30 Signal to Noise Ratio Measurements TV The Combolook Color HD is capable of performing measurements of the Signal Noise or Picture Carrier Aud
22. HZ 575 25 MHZ 583 25 MHZ 591 25 MHZ 599 25 MHZ 607 25 MHZ 615 25 MHZ 623 25 MHZ 631 25 MHZ E67 E68 E69 E70 E71 E72 E73 E74 E75 102 103 104 105 106 107 108 109 110 21 22 E23 E24 E25 E26 E27 E28 E29 E30 E31 E32 E33 E34 E35 55 75 MHz 60 50 MHz 63 75 MHz 176 00 MHz 184 00 MHz 192 00 MHz 200 00 MHz 208 00 MHz 216 00 MHz 471 25 MHz 479 25 MHz 487 25 MHz 495 25 MHz 503 25 MHz 511 25 MHz 519 25 MHz 527 25 MHz 535 25 MHz 543 25 MHz 551 25 MHz 559 25 MHz 567 25 MHz 575 25 MHz 583 25 MHz 45 40 E41 E42 E43 E44 E45 E46 E47 E48 E49 50 E51 E52 E53 E54 E55 E56 E57 E58 E59 E60 E61 E62 E63 E64 E65 623 25 MHz 631 25 MHz 639 25 MHz 647 25 MHz 655 25 MHz 663 25 MHz 671 25 MHz 679 25 MHz 687 25 MHz 695 25 MHz 703 25 MHz 711 25 MHz 719 25 MHz 727 25 MHz 735 25 MHz 743 25 MHz 751 25 MHz 759 25 MHz 767 25 MHz 775 25 MHz 783 25 MHz 791 25 MHz 799 25 MHz 807 25 MHz 815 25 MHz 823 25 MHz 6 7 E38 E39 591 25 MHz 599 25 MHz 607 25 MHz 615 25 MHz 46 E66 E67 E68 E69 831 25 MHz 839 25 MHz 847 25 MHz 855 25 MHz 501 502 503 504 505 506 507 508 K05 K07 K08 K09 K10 K11 K12 509 510 511 512 513 514 515 516 517 111 25 2 119 25 2 127 25 2 136 25 MHZ 143 25 MHZ 151 25 2 159 25 2 167 25 MHZ 176 25 MHZ 183 25 2 191 25 2 199 2
23. a signal strength optimisation Display of signal level Digital SNR signal noise ratio BER bit error rate MER Constellation diagram DVB S DVB S2 QPSK 8PSK normal 8PSK rotated Symbol rate display 1 to 45 MSymbols sec Satellite identification Yes NIT display Network Information Table according to the DVB standard Identifies Satellite Name and position Name of TV and radio channels from SDT Service Description Table Digital DVB S MPEG2 FTA reciever DVB S 2 MPEG 4 not decoded Ku C band Yes selectable from LNB type defined Audio bandwidth Adjustable between 5 5 MHz and 8 5 MHz Memory 100 spectrum pictures can be stored with name Stored spectrum can be mixed for easy identification of satellite Maxhold function Power out Yes 13 18V for LNB can be adjusted 22 kHz tone Yes on off DiSEqC Yes all 1 0 and 1 1 Also Toneburst on off DiSEqC actuator Built in positioner for DISEqC 1 2 SatScan and SatSelect DiSEqC Goto X for USALS operation TV CATV uses TV IN F Connector Input Frequency 2 900MHz Min Input Level About 35 dBuV noiselevel Max Input Level Picture 110 dBuV Spectrum 120 dBuV Attenuation OdB to 454 1 dB step Automatic or manual setting Accuracy 1dB at 20 C Resolution Bandwidth 1MHz or 300kHz Video Bandwidth 100kHz 1 kHz 1kHz or 100Hz Power for Active Antennas Yes 12VDC to 24VDC in 2V steps Digital DVB T MPEG2 FTA reciever DVB T T2 MPEG 4 not
24. al polarisation The Ku band for satellite reception is 2100 MHz wide 12700 10600 while the receiver input is only 1100 MHz wide 2150 950 To allow the full reception of the entire Ku band two different local oscillator LO frequencies are used in the Universal LNB This LO frequency is switched in the Universal LNB by using the 22 KHz tone When it is off then the LO frequency used is 9750 MHz and when on 10600 MHz is used The four frequency ranges for the Universal LNB are sometimes called quadrants and is diagrammed below showing the overlap 1 Shy MHz MHz 1155 k EA MHz MHz m 1 E OH MHz MHz 1 MHz MHz 37 Appendix DiSEqC Primer About DiSEqC DiSEqC is an acronym for Digital Satellite Equipment Control is achieved using the 22kHz signalling tone The 22 kHz signal is imposed on the LNB DC voltage of 13V or 18V at a level of 0 65V Normally the 22kHz signal is either continuously on or off When a DiSEqC message is to be sent if the 22kHz is on it is turned off for a quiet period before the message Then the DiSEqC message is sent as a series of bytes with an odd parity bit appended The bits are formed by modulation of the 22kHz signal as shown below 0 Data Bit 1 Data Bit 1 0 ms 0 5 ms 0 5 ms 1 0 ms gt lt Most DiSEqC commands are 3 bytes in length but some can be up to 6 bytes long so the transmission time of DiSEqC message is on the or
25. and and Hi band for Universal LNBs Exit Returns to the Spectrum display 13 Digital Picture Mode Satellite From the Digital display when the input frequency is locked and the modulation type displayed the SDT data can be examined using the Channels function with keypad 4 Channels This shows a list of the services on the transponder Encrypted channels shown in RED and cannot be selected The current selected channel is shown in WHITE FTA channels are shown in GREEN and radio channels are shown in YELLOW When there are FTA channels available the current selected channel can be opened by keypad 3 Lifestyle Tv Klassisk 2 Lu 100000000 O AWARD Using the keypad 3 Open shows the selected picture or if a radio channel plays the audio 19 21 DAVID CAMERON SAYS WILL GIVE Ps 14 Display which is available using the keypad 4 SNR Info function or the keypad 5 Pic Info functions lifestyletves 15 Memory Functions Satellite There are four different user memory types in the Combolook Color HD instrument They are divided according to the type of data storage required Each memory area is chosen automatically depending on the type of data Spectrum Memory There are 100 memory positions reserved for User data of the spectrum waveforms This data can be loaded and
26. be prefered compared with the RF readout The information above tells that the meter has locked on a DVB T T2 C or unlocked signal and tells about the following DVB T T2 quality parameters of the signal BER Bit Error Rate The value should be as low as possible Pre BER is before correction by the demodulator and Post BER is after correction Pay more attention to the Pre value C N Carrier Noice The value should be as high as possible MER Modulation Error ratio The value should be as high as possible The two thermometer bars show the BER and C N of the signal The C N thermometer increases from right to left and the BER thermometer gets smaller from right to left so that the best signal is shown by a longer white bar The display also shows Modulation QPSK QAM16 or QAM64 FEC 1 2 2 3 3 4 5 6 7 8 Guard 1 32 1 16 1 8 1 4 Mode 2K 8K UCB Un Corrected Blocks The value should be as low as possible 24 In DVB C mode the meter will show C N Carrier Noice This value should be as high as possible Pre is before correction by the demodulator and RS error Reed Solomon bad blocks like the UCB Un Corrected Blocks should be as low as possible should be zero The two thermometer bars shows the quality of the signal BER and C N The scales increases from right to left and the best signals are shown by a longer white bars The display also Modulation Di shows ferent Q
27. cies of the User bands By scanning the frequencies the User Bands are located To find out what number User Band this is another DiSEqC command is sent to turn off the tone at User Band XX By selectively turning the RF tones off the number of the User Band is determined Alternatively The User Band Frequency allocation is usually provided on the LNB Switch description The placement of the User bands within the spectrum is not the same between manufacturers 41 For further detail on SatCR see the specification 50494 Satellite signal distribution over a single coaxial cable in single dwelling installations SatCR Commands only the 5 byte commands are shown ODU_Power_OFF 0 0 0x00 D1 0x00 Turn power off for the selected User Band D1 is defined as bit 5 6 7 select the User Band and bit 0 1 2 3 4 0 ODU_UBxSignal_ON 0 0 0x00 Ox5b 0x00 0x00 Generate an RF tone at the centre of each User Band ODU_Config 0 0 0x00 Ox5b D1 D2 D1 is defined as bit 5 6 7 select the User Band and bit 0 1 bit 1 2 3 4 0 Generate an RF tone answer at the selected User Band for the question in D2 ODU LoFreq 0 0 0x00 0 50 01 D2 D1 is defined as bit 5 6 7 select the User Band and bit 1 1 bit 0 2 3 4 0 Generate an RF tone answer at the selected User Band for the question in D2 ODU_Channel_change 0 0 0x00 D1 02 D1 is defined as 01 is defined as bit 5 6 7 select the User Band bit 3 selec
28. ctrum using Memory gt Spectrum and use the knob to select the memory position and then press Load Press Digital and now use the knob to set the start frequency of the digital channel Press Set strt and then use the knob to set the stop frequency and press Set strt again Digital transponders are normally 8 MHz wide The channel power and bandwidth are shown at the lower right of the TFT screen Start 731 70MHz Stap 744 70MHz Span 13 DOMHz Marker 742 10MHz Ch 55 21 3 ATT OdB 100KHz 1MHz CH POWER BW 8 OOMHz 58 6 dBuV 32 Using PC to transfer transponder data Satellite transponder data can be loaded from the instrument to and from a PC for easy changes The Windows PC program used is chedit exe From the File Menu a channel file can be loaded from the Combolook edited and saved back to the Combolook Also channel files can be loaded and saved on the PC for backup and easy updates of channel files Ol Channel list editor lal xl File Edit Channelname 13 8 22 Service ID Satellite E CNBC Eu 1 Off 100 Astra 19 L ZDF 18Y On 28006 19 N TV 18 On 12090 19 Sky News 8v On 7290 Astra 19 CNN 28022 Astral9 MTV 28673 19 Viva 28676 19 Off 10050 19 051 8v 28805 Astra 19 Mex EwobidS 0 rcas 4f
29. decoded DVB T T2 measurement Yes both MPEG2 and 4 showing BER C N and MER Digital Channel Power Function Memory for Spectrum storage Channel storage and Favorite storage 62 Input impedance 75 Ohm F Connector Picture screen 5 16 9 TFT color display Menus On LCD 64x128 next to the monitor PC connection Yes RS232 output Battery Li lon rechargable 12v 3 5 amp hour Operational About 1 5 hour on a fully charged battery Weight About 3 kg including battery and carrying case Accessories Nylon carrying case Power supply of 220v 13 5v 1 7amp Car charger 63 Glossary 8PSK 8 Phase Shift Keying This is the modulation type that is used for DVB S2 also called HD In 8PSK a symbol has 8 states or 3 bits On the constellation diagram 8PSK signal either be Normal with the eight points around a circle centred on the origins or Rotated 22 5 degrees Attenuator The attenuator inserts an active resistance into the RF path and reduces the signal level about 3 dB BER Bit Error Ratio This is the ratio of BitsError BitsReceived This is a small number and 15 usually expressed in scientific notation as BER 2 X 10 8 Typically BER should be smaller than 1 X 10 6 for good reception For DVB S2 the BER count is not available and the BER shown 15 an estimate formed from the Total Block Count Correctable Block Count and Bad Block Count Use MER for DVB S2 dB decibel The dec
30. der of 40 to 80 milliseconds DiSEqC Commands LNB1 0 0 0x10 0x38 OxcO LNB2 0xeO 0x10 0x38 Oxc4 LNB3 0 0 0x10 0x38 Oxc8 LNB4 0 0 0x10 0x38 SW 1 0xe0 0x10 0x39 SW2 Oxe0 0x10 0x39 Oxf1 SW3 Oxe0 0x10 0x39 Oxf2 SW4 Oxe0 0x10 0x39 Oxf3 SW5 Oxe0 0x10 0x39 Oxf4 SWE Oxe0 0x10 0x39 Oxf5 SW7 Oxe0 0x10 0x39 Oxf6 5 8 Oxe0 0x10 0x39 Oxf7 SW9 Oxe0 0x10 0x39 Oxf8 SW10 0 0 0x10 0x39 SW 171 0 0 0x10 0x39 SW12 0 0 0x10 0x39 Oxfb SW13 0 0 0x10 0x39 Oxfc SW14 0 0 0x10 0x39 Oxfd SW15 0 0 0x10 0x39 Oxfe SW16 0 0 0x10 0x39 TBA Tone Burst 0 to select satellite A TBB Tone Burst 1 to select satellite B 38 Go East Oxe0 0x31 0x68 0 1 Go Home Oxe0 0x31 Ox6b 0x00 Go West Oxe0 0x31 0x69 Set East 0 0x31 0x66 Clr Lim Oxe0 0x31 0x63 Set West 0 0x31 0x67 Goto Pos 0 0 0x31 Ox6b Position Number 1 to 31 gt Save Pos 0 0 0x31 0x6a Position Number 1 to 31 gt Goto X Oxe0 0x31 0x6e Movement High Byte Movement Low Byte For the full DiSEqC specifications see http www eutelsat com satellites 4_5 5 html 39 Appendix DVB S DVB S2 Primer DVB S and DVB S2 both use phase shift keying to digitally modulate a carrier Quadrature phase shift keying is used in both and the digital data is encoded as a 90 degree phase shift in the
31. e adjusted for best display A further press of the knob restores the operation to frequency adjustment The span setting from the knob remains as the current setting The DC Offset is restored to 0 The current band being displayed can be changed with the 22kHz signal using the keypad 22kHz For Universal LNBs when the 22kHz is off the band is Lo Band 920MHz to 11900 2 and when the 22kHz is on the band is Hi band 11520MHz to 2150MHz 10 There is a small overlap from 11520MHz to 11900MHz so a Universal LNB can tune this range with 22kHz either on or off Picture Allows the display of Analog or Digital channels see Analog Picture Mode page 16 or Digital Picture Mode page 14 Digital Changes to Digital mode at frequency of marker Span Min Max Changes the spectrum bandwidth fro 250MHz to 1231MHz X Pol Performs a cross polarisation check at the marker or nearest peak and displays the result at the lower right of the TFT DiSEqC See DiSEqC on page 18 Setup See Setup on page 19 Beeper The Beeper function is enabled or disabled and can be used to provide an audio signal of the signal level at the marker position Spec See the Special Spectrum functions on page 21 Memory This allows saving or mixing the Spectrum with saved spectrum pictures See the Special Spectrum Mix on page 21 13 18V Switches the LNB voltage between 13V and 18V 22kHz Switches the 22kHz signal which switches between Lo
32. e four frequency ranges that can be selected from the LNB by using the 13V 18V and the 22kHz signal In order to allow multiple receivers to operate using a single coax cable UniCable operation requires the receiver to send the desired frequency using a DISEqC command A SatCR LNB or Switch may be used For a SatCR Switch the LNB input is usually a Quattro LNB which provides the four frequency ranges to the switch For a SatCR LNB the Switch and the Quattro LNB are integral To tune a frequency on the LNB or Switch the receiver issues a DiSEqC command which indicates the Satellite Frequency needed the Polarisation the Band and what User Band to use The number of User bands differs but normal is 4 or 8 SINGLE CABLE INTERFACE SCIF Single cable Vertical Lew Band connection A Receiver 1 Horizontal Lew LNB p B ower Receiver 2 Vertical High Band SWITCH splitter _ Horizontal High Band 7 Receiver Vertical Low Band Allocated Horizontal Low Band y 2 V Frequency lt K X Bands Vertical High Band X x 4 5 Horizontal High Band gt frequency Spectrum showing T User N 1 UB_24 1 1 Bande 1UB 1 The User Bands which are available can be determined by sending a DiSEqC command to emit RF tones at the centre frequen
33. e on a DVB C channel Start with selecting a channel from the transmitter Your looking for in this ex there is a transmitter on channel 23 Simply tune in by using the knob in this mode Remember that some antennas like many indoor antennas needs to be power supplied See below Setup P insert how to do this Press button nr 8 to turn the Beeper on off In this mode the meter will measure RF strength from the transmitter which is presented with higher lower pitchtones from the loadspeaker Higher the tone the better the signal The channel kan be changed by turning the knob in this mode The beeper function is also very handy when it s difficult to align an antenna and trying to watch the display of the meter at the same time 23 When the antenna aligned with Max RF signal enter the Digital TV DVB T T2 C part by selecting 1 in the menu DVB T C and then DVB T or DVB C The instrument will present the DVB T C channel closest to the frequency which the cursor is pointing at in spectrum for ex the cursor is pointing at 490 Mhz then the meter will present ch 23 in DVB T C mode DVB T E23 490 2 LOCKED 25 Modulation 0 03 Mode Guard 61 8 2 3 For DVB T fine tune the antenna in order to get the best highest Digital readout Always finetune the antenna in Digital mode RF readout is for finding the transmitter only Highest Digital readout is always to
34. ecifications 1 0 1 1 and also supports the Goto X function for easy positioner movement The DiSEqC commands can be accessed from several menus for convenience From the Spectrum Mode keypad 5 DiSEqC From the Digital Mode keypad 5 DiSEqC From the Multichannel Mode keypad 8 Spec keypad 5 MultiCH keypad 5 DiSEqC In the DiSEqC menu the DiSEqC commands LNB1 LNB2 LNB3 LNB4 as well as Tone Burst A and Tone Burst B can be sent For Switches the SWx command allows the switch commands SW1 up to SW16 to be sent The Motor command allows the operation of positioners Go East and Go West move the positioner as long as the key is pressed Calibrate moves the positioner to the home position usually due south Limits allow soft limits to be set or cleared for the positioner Position allows the setting a movement to defined positions The Go East command and Go West command are used to move the positioner to an optimum position and then that position is saved from 1 to 31 Goto position 0 commands the positioner to its home position The Goto X also called USALS command removes the necessity to find positions manually To use the Goto X function the instrument latitude and longitude must be known Once these are set they are stored in permanent memory and so will not be lost on power down Once the latitude and longitude are correct the positioner can be commanded to move directly to a satellite orbital
35. flected in frequency about the User Band frequency as shown in the example below For more details see Appendix D 20 User Band 1 Marker 1210MHz 24 0 10906 MHz Atten On 10878 MHz k The SatCR test Spec gt UniCable gt Uni Test allows full testing of a SatCR LNB This test takes about 20 seconds to check each User Band During the test the four User Bands are identified and any offset found is used for further SatCR tuning Start User Band 1 E 1210 MHz 21 S0MHz Span 1230MHz gt Marker User Band 2 1420 MHz 14 5 dBmV Atten On User Band 1 1680 MHz cme Sov User Band 1 2040 MHz At the end of the test esults of measuring the User Bands are presented 21 UniCable Test Results Found at Response Found at Response Found at Response Found at Response The User Band is set to 1 by default but for more detailed testing it can be set to any of the four bands for Example Spec gt UniCable gt UsrBand 4 Now User Band 4 will be used for any further UniCable Tuning FREU 1 Test 22 Digital TV DVB T T2C Operation The instrument will start in Spectrum mode when TV mode is selected in start up and a similar picture like the one below will be displayed rt 00MHz The instrument shows the selected channel of the last entry in this ex Channel E25 Easiest way to install a DVB T terrestial antenna measur
36. he demodulator receives a DVB S2 transmission in QPSK then QPSK HD is displayed Res BW Resolution Bandwidth The resolution bandwidth shows the incoming signal before the measuring chip set in the instrument Choose between the narrow 300 kHz or the wider 1 MHz resolution The instrument is normally working in the mode and the bandwidth chosen is shown on the spectrum display SNR Signal to Noise Ratio The SNR of a Signal is a measure of the quality of the signal in dB and higher SNR better Typical SNR readings for a clean signal will be greater than 10 0 dB This is a measurement from the demodulator and is only valid when the received signal is locked VID BW VIDEO BANDWIDTH FILTER THE VIDEO FILTER IS PLACED AFTER THE MEASURING CHIP SET IN THE INSTRUMENT AND IS USED IN CONJUNCTION WITH VARIOUS RESOLUTIONS WITHIN A SPECIFIED BANDWIDTH THE RESOLUTION OF DETAILS ON A SIGNAL CARRIER IS PROGRESSIVELY REFINED IN RELATION TO THE NARROWING OF A FILTER SWEEP TIME IS INCREASED THE DIFFERENT VIDEO FILTERS ARE AUTO MODE DEFAULT 100 KHZ 10 KHZ 1 KHZ OR 100 HZ THE BANDWIDTH IN USE IS SHOWN ON THE SPECTRUM DISPLAY INDEX 65
37. he general name for the amplifier and downconverter at the dish MaxHold In the Analog Mode this can be used to remember the highest peak of the RF signal MER Modulation Error ratio This is usually expressed in dB It is calculated from the constellation pattern and represents how close the and Q decision points are to the ideal position A typical MER value is 16 dB NIT Network Information Table One of the System Information 51 tables in DVB containing the current satellite name position and other data P insert Power Insert This function is used for powering external active accessories such as antenna amplifiers which require a power source in order to operate The output voltage may be adjusted between 12 24 volt DC and is connected via the BNC connector The selected output voltage is always visible in upper left hand of the LCD display next to the battery symbol The default setting of insert is Off 0 volt Warning Misuse of this function may cause irreparable damage to all connected equipment not intended to accept or receive voltage QPSK Quadrature Phase Shift Keying This is a digital modulation used for all DVB S transmissions The data is transmitted depending on the phase of the signal with 90 degrees the shift so four states one symbol are encoded at each Symbol Frequency QPSK HD DVB S2 transmissions can be broadcast in either 8PSK modulation or 5 modulation When t
38. ibel is a logarithmic ratio of voltage or power to a standard or reference voltage or power dB 20 log dB 10log 0 0 DiSEqC see Appendix DVB S or DVB S2 see Appendix C FEC Forward Error Correction This is the error control used in DVB and other systems to correct errors in transmission To do this the data is sent with additional error correcting bits On reception the error bits are identified and usually corrected HD high definition This refers to any resolution above the DVB standard resolution The DVB standard resolutions for the luminance signal are H X V 720 X 576 544 X 576 480 X 576 352 X 576 352 X 288 The DVB S2 High definition resolutions are H X V 1920 X 1080 or 1280 X 720 They can either be interlaced or progressive Interlaced means the picture is built from two fields with each field being alternating half the scan lines Progressive means the entire picture is repeated each time Progressive pictures require a higher data rate IF intermediate frequency This refers to the frequency after down conversion at the LNB to the range 950 MHz to 2150 MHz 64 decision points During demodulation of 8PSK signal the two phases of the are converted to digital data and this data is sampled at the Symbol Rate These samples are called IQ decision points as seen on the constellation diagram and are then form the digital input symbols LNB Low Noise Block T
39. io Carrier ratio To perform these measurements Put the marker on any signal carrier and zoom in with the Span 13 button Push Ref mrkr for the reference marker setting Tune in the right frequency with the marker so that it is a the peak of the signal to measure Push Ref set and a new marker appears on top of the first marker Turn the knob and place the reference marker on another carrier signal peak or on the noise floor The relation between the first marker and the second marker is presented in the lower right hand corner of the picture screen so in the spectrum below we see that the audio carrier is 7dBuV lower that the picture carrier and the video audio carrier spacing is 5 5MHz Start 632 75MHz Stop 645 75MHz Span 13 DOMHz Ch 43 65 484 1KHz 300KHz 5 50MHz 7 dBuV This measurement can also be made from Spectrum samples saved in memory After a spectrum is loaded from memory with Memory gt Load choose Ref mrkr and use the knob and set the first marker position with Ref set and then use the knob to define the second reference marker 31 Channel Power Measurement TV The digital output level in dB of digital transponders such as in digital terrestrial transmissions can be measured for saved spectrum samples If the spectrum is not saved then save the spectrum to a memory location by Memory gt Spectrum gt Save Load a saved spe
40. ither in TV mode or Satellite mode A third option is available which will ask the user on startup to select the mode If no selection is made within 20 seconds the instrument will turn off Version The version menu displays serial number levels of the firmware and related information 18 Special Functions Satellite MaxHold This sets the measurement of signal level to hold and display the maximum received values Once enabled the measurements will remain in MaxHold until expressly disabled Refmrkr The Reference marker allows a second marker FREU to be placed on the spectrum display Adjust the marker 1 1 d to the required second location and set the reference marker Now when the marker is moved to another location on the spectrum display the difference in dB level and the frequency difference are displayed Span Min Max The span can be changed when on this menu for convenience It is the same as the span setting on the Spectrum menu Memory Samples of spectrum data can be saved in memory and then either displayed or mixed with the current spectrum When the mix function is chosen the current spectrum is adjusted to the same span and starting frequency and then the spectrum from memory overlayed as a line image so that you can compare the current signal with a saved spectrum The spectrum memory selected using the knob and the memory position is displayed on the TFT Spectrum memory can be loaded f
41. ment Checking charging the battery Because the instrument has been stored for some time before transportation it is important to check the battery condition To do this turn the main switch On When starting the instrument the LCD color monitor and LCD display turns On There is a battery symbol at the top of the LCD display that shows the status of the battery All black means that the battery is fully charged If the symbol is empty it means that the battery is nearly completely discharged If the battery needs recharging use the power supply included with the instrument A thermometer scale 0 100 is displayed on the LCD as the recharging starts Please note that the instrument should be turned off when being recharged Charging will not be performed with the instrument is on Recharging from fully discharged battery to about 98 capacity takes approximately 30 hours When the battery been recharged the Combolook Color HD is ready to be used 61 Appendix Specification Satellite TV uses SAT IN F Connector Input frequency 920 2150MHz Min Input Level About 35 dBuV noiselevel Max Input Level About 90 dBuV Attenuation 15 dB manual attenuator on off Accuracy 172 dB TV Accuracy 1dB at 20 C Spectrum bandwidth from 250MHz to 1230MHz Frequency display Yes IF default All standard LNB LO can be used Display of signal level Analog dB level on Spectrum display Pitch tone on loudspeaker for dish antenn
42. n for closer inspection In TV mode it presents measured data in dB with high accuracy 1 dB at 200 C The Combolook Color HD is capable of working with the return path signals in Cable TV networks 5 65 MHz according to the EN50083 standard Signal to Noise measurements and Digital Channel power measurements can be made using Reference markers on the spectrum Digital TV pictures DVB T and DVB C Free to Air can be displayed with sound DVB T MPEG2 4 digital signals can be tuned in and locked The instrument can measure C N BER and MER Attenuation can be inserted from 0 45dB to determine picture quality with increased attenuation TV Channels can be saved as favorites for easy tuning The user memory positions can save spectrum displays analog channels digital channels and Saved spectrum positions can be mixed simultaneously with an actual reading for easy comparison and control of signal levels The Combolook Color HD S2 T2 C is powered by a built in rechargeable Li lon battery The battery can be recharged using either the included external battery charger or the car adaptor The Combolook Color HD S2 T2 C weighs less than 4kg including the battery and the carrying case Unpacking Unpack the instrument and check that the following items are included 1 Combolook Color HD S2 T2 C instrument 2 Nylon carrying case with shoulder strap 3 Power supply and charger 110 230VAC 14 VDC center pin positive
43. or examination as well as mixed HENEES Ic EXT miz Load PED 25 ars zz 3Delete aii Atten Lock 10846V ASTRA 28 2 Memory 2 107924 Atten The 154 attenuator can be inserted or disabled from this menu 13 18V The 13V 18V LNB voltage can be changed at this menu for convenience 22kHz The 22kHz LNB signal can be changed at this menu for convenience 19 SatCR UniCable LNB Functions Satellite When a SatCR LNB is first connected there will be no signal This is because in the Spectrum mode no UniCable commands are issued Command the SatCR LNB by switching to the Digital mode and back to the Spectrum mode and it will show a spectrum Turning on and off the LNB 13 18 or the LNB 22kHz will also command a UniCable frequency The span of the spectrum can be set to either 250MHz or 1231MHz the maximum or minimum by pressing the keypad Span The Marker frequency shows the IF frequency of the User Band The translated SatCR signal will be at the chosen User Band and about 100MHz wide For the UniCable LNB the LNB 13V 18V and the LNB 22kHz signal represent the Polarisation and the Band and are not sent to the SatCR LNB the Digital mode the frequency shown is the SatCR commanded frequency Start 92DMHz Stop 215DMHz Span 1231MHz Marker 1211MHz 24 1 4889 Atten On Lock 1208v ASTRA 28 2 Remember that the displayed SatCR band 15 re
44. position 17 Setup Satellite The Setup menu contains the functions which are used infrequently F E E The LNB type can be selected this menu The LNB local oscillator down converts the satellite frequency 10670MHz to 12750 2 to the 1 LH E L U intermediate frequency 920MHz to 2150MHz If conversion desired the IF setting is used Analog The default for the Analog Picture inversion be set here Normal is used by Ku Band and Invert used for C Band Motor The positioner type can be set here The most common positioner type is DiSEqC Dis 1 2 the other types supported are Satsel and Satscan Display The display units for signal level can be to dBuV dBm or si The LCD contrast can be adjusted and the LCD backlight enabled or disabled The Spectrum Graticule can be turned on for dB guidelines AutoOff AutoOff can be set to turn the unit off automatically after a number of minutes if knob of key actions occur AutoOff does not operate when on external power KeyClick The beep for a keypress can be enabled or disabled Knob Dir The direction of movement for the knob can be changed for frequency adjustments and for other functions such as selecting the displayed picture The default is clockwise rotation of the knob is increasing frequency and moves the onscreen selection down TV SAT The instrument mode when turned on can be selected to start e
45. rite channel press Memory and use the knob to select the Favorite channel to delete and the press Delete 29 Setup TV The setup menu contains the items which are infrequently 1LCD used 201 spl ay 3P insert Lcd The LCD contrast can be adjusted and the LCD backlight enabled or disabled Display The scan cursor in the TV spectrum can be enabled or disabled The Spectrum Graticule can be urned on for dB guidelines The display units for signal level can be set to dBuV dBm or dBmV The TV Level 1 be adjusted from 55 dB to 75 dB This is the level a 51 hat the Combolook uses for automatic attenuation for Exit TV presentation P insert The supply voltage on the antenna can be selected when using an active antenna Ensure you know the correct operating voltage of the antenna amplifier because supplying too high a voltage could burn out the active device The voltage can be adjusted tom OV off to between 12DCV and 24DCV The positive supply is the BNC Center erminal The selected output voltage is always visible in upper left hand of the LCD display next to the battery symbol The default setting of insert is Off 0 volt Warning Misuse of this function may cause irreparable damage to all connected equipment not intended to accept or receive voltage CH_Table This selects the Channel Table in use to display and select the frequency The available channel tables are CCIT
46. s QPSK 16QAM 64QAM 16QAM 64QAM 256QAM Guard Interval 1 4 1 8 1 16 1 32 1 4 19 256 1 8 19 128 1 16 1 32 1 128 Discrete Fourier Transform size 2k 8k 2k 4k 8k 16k 32k The table above reports a comparison of available modes in DVB T and DVB T2 60 Appendix G Maintenance The instrument is equipped with a rechargeable battery and it is important that the battery is maintained Recharging should be done using the included car adaptor or external power supply 110 220V 14V DC center pin positive and chassis earth Please note that instrument can be operated for shorter periods of time by the external power supply however the Combolook Color HD is not made for permanent operation with the external power supply This will degrade the battery Contact your dealer for more information Adjustments for vertical hold brightness and contrast are located under the instrument Contact your dealer for proper adjustments The battery needs recharging when the battery symbol at the top of the LCD appears empty For protection of the battery when the battery voltage falls to an unsafe level BATTERY EMPTY is displayed on the LCD and then the instrument turns off Remember that a cold battery has much lower capacity than one at room temperatures The Combolook Color HD is designed for outside use in rough conditions but it should not be exposed to rain or snow as this can damage or shorten the lifetime of the instru
47. stem 3 modulation options QPSK 16QAM 64QAM 5 different FEC rates 4 Guard Interval options 2k or 8k carriers actually this is 1705 carriers or 6817 carriers 6 7 or 8MHz channel bandwidths One other technical aspect of DVB T is its capacity for Hierarchical Modulation Using this technique two completely separate data streams are modulated onto a single DVB T signal A High Priority HP stream is embedded within a Low Priority LP stream Typically the LP stream is of higher bitrate but lower robustness than the HP one Receivers with good reception conditions can receive both streams while those with poorer reception conditions may only receive the High Priority stream After the MPEG transport stream usually called MUX instead of transport stream is demodulated then the data encoding is the same as DVB S as explained in Appendix C For further information see the DVB T Standard published as EN 300 744 and ETSI TS 101 154 Specification for the use of Video and Audio Coding in Broadcasting Applications based on the MPEG 2 Transport Stream The DVB T2 specification The DVB T2 draft standard was ratified by the DVB Steering Board on June 26 2008 The ETSI process resulted in the DVB T2 standard being adopted on September 9 2009 System differences with DVB T DVB T DVB T2 Forward Error Correction FEC Convolutional Coding Reed Solomon 1 2 2 3 3 4 5 6 7 8 LDPC BCH 1 2 3 5 2 3 3 4 4 5 5 6 Modulation
48. tiplex the PAT indicates the PID of the corresponding Program Map Table PMT It also gives the location of the Network Information Table NIT 2 Program Map Table PMT the PMT identifies and indicates the PIDs of the video audio and other streams that make up each service 3 Network Information Table NIT the NIT gives the Network Number Name and Satellite Position of the satellite It also lists all the other transponders on the satellite 4 Service Description Table SDT the SDT gives information about each service in this transport stream Once these tables are decoded by the receiver the correct PID for the audio and video streams can be found and presented to the video and audio decoders In DVB S the video streams are presented in MPEG 1 or MPEG 2 encoding usually MPEG 2 For DVB S2 the video streams can be presented in these formats or in the newer HD format MPEG 4 For a more complete understanding see ISO 13818 1 Information technology Generic coding of moving pictures and associated audio information Systems and DVB EN 300 468 Specification for Service Information 40 Appendix D SatCR Primer SatCR UniCable or SCIF Single Cable Interface is a method of translating Satellite frequencies from the LNB to the user It is intended to allow multiple receivers to share the same coaxial cable With a standard Universal LNB with Horizontal and Vertical polarity and low and high band there ar
49. ts polarisation bit 2 selects low high band bits 0 1 of D1 and D2 are 10 bit Tuning Word tellite Fuserand 4 18 350 TuningWord F 42 Appendix E Television Channel Tables CCIR Channels E2 48 25 MHz S24 327 25 MHz E42 E3 55 25 MHz S25 335 25 MHz E43 E4 62 25 MHz S26 343 25 MHz E44 S27 351 25 MHz E45 01 69 25 MHz 28 359 25 MHZ 46 02 76 25 MHz 529 367 25 MHZ E47 S03 83 25 MHz S30 375 25 MHz E48 51 05 25 MHZ 31 383 25 MHZ 49 2 12 25 MHz 32 391 25 MHz 50 53 19 25 MHZ 533 399 25 MHZ E51 S4 126 25 MHz S34 407 25 MHz E52 S5 133 25 MHz S35 415 25 MHz E53 56 40 25 MHZ S36 423 25 MHz E54 57 47 25 MHz S37 431 25 MHz E55 S8 54 25 MHz S38 439 25 MHz E56 59 61 25 MHZ 539 447 25 MHz E57 510 68 25 MHZ 540 455 25 MHZ 58 541 463 25 MHZ 59 E5 75 25 MHz E60 E6 82 25 MHz E21 471 25 MHz E61 E7 89 25 MHz E22 479 25 MHz E62 E8 96 25 MHz E23 487 25 MHz E63 E9 203 25 MHz E24 495 25 MHz E64 E10 210 25 MHz E25 503 25 MHz E65 E11 217 25 MHz E26 511 25 MHz E66 43 E12 511 512 513 514 515 516 517 518 519 520 521 522 523 224 25 2 231 25 MHZ 238 25 2 245 25 2 252 25 2 259 25 2 266 25 2 273 25 2 280 25 2 287 25 2 294 25 MHz 303 25 MHZ 311 25 MHZ 319 25 MHZ 27 28 29 1 2 4 5 6 7 8 9 40 41 44 519 25 MHZ 527 25 MHZ 535 25 MHZ 543 25 MHZ 551 25 2 559 25 MHZ 567 25 M
50. un ff 4404 Hotbird 33 Loading Firmware Loading new firmware to the Combolook is done using a Windows loader program called FDLDVB exe Also needed is the firmware hex file to load In the Combolook there are different types of firmware used The main control firmware will have a name like CL HD 10 and the DVB module firmware has a name like SC_DVB_1 3 bin Usually it will be necessary to only update the main control firmware Do not load any firmware without hese types of name it will be for a different instrument and will not work on the Combolook Color HD Use the Version screen in the Setup Menu to determine the current software version In order to load firmware you must have a PC which supports an RS232 connection The firmware loading must be performed with the external charger connected The RS232 cable to be used is supplied as part of the kit with the Combolook Color HD Some laptops do not have an RS232 connection but a USB to RS232 adapter can be purchased at low cost Connect the Rs232 cable from the computer to the instrument Run the firmware download file FDLDVB exe Firmware Downloader Firmware Downloader Port About Exit Port About Exit Select Port Send Satlook Firmware Send DVB Firmware Select the RS232 port on the computer Normally the port is COM1 but some USB to RS232 will use some other port If desirable this USB to RS232 conversion device can be made to always
51. use COM1 by clicking Control Panel Device Manager Ports and in the Advanced settings for the adapter set to COM1 Select Send Satlook Firmware and then OK and the display will show Searching Connect the Combolook Color S2 T2 to the external charger and the display will change to a file dialog to choose the firmware file 34 1 Remove power and switch off Instrument 2 Klick OK 3 Connect charger to Instrument Searching Abort Search OBS You have to use external powersupply charger And the powerswitch has to be OFF Cancel Lookin Combalook Development oe y E Name m Date modified Type Size 30 0 2000094 HEX File m 1 r File name Den Resme Fimwarefie Che 4 gt Normally the firmware will be in the same direction as FDLDVB exe but if not you can navigate to the correct directory and select the firmware file Once the file is selected the firmware loading will take about 10 minutes and then the Firmware Downloader program will display Download Complete 35 The DVB module firmware will probably not need updating but if it does then choose the Send DVB Firmware The loading process for this firmware is different Power on the Combolook and wait until it is fully started 1 Turn on the instrument 2 Wait for instrument to startup completely 3 Klick
52. viewed or mixed with the current signal for comparison Analog memory There are 100 memory positions reserved for User data of Analog frequencies Each position stores the Name frequency 13 18V and 22kHz state Digital Memory There are 100 memory positions reserved for User data of Digital frequencies Each position stores the Name frequency 13 18V and 22kHz state Digital Channel Memory There are 100 memory positions reserved for User data of Digital Channels Each position stores the Name Service ID frequency 13 18V and 22kHz Text Editor Satellite All the User memory areas use the Text Editor for saving the name for the memory position With the Digital Channel memory the current channel name is entered from the SDT data and usually this name is correct and all that is required is to save the name With the other memory positions a name requires manual entry Use the knob to select the characters from the list and the knob select button to enter the character Characters can be deleted by using the keypad 1 Delete and the current position can be changed by the keypad 2 Left or 3 Right The keypad Save completes the entry and saves the name to the memory position TEXT EDITOR ABCDEFGHIJKLMNOPQRSTUVWXYZ 0123456787 abcdefghi jklmnopqrstu lt gt _2250 18 16 DiSEqC Functions Satellite The Combolook Color HD S2 T2 C instrument supports all usual DiSEqC commands for the DiSEqC sp
53. ween 4 MHz and 1 MHz depending on the span of the spectrum When the spectrum is displayed Automatic Spectrum Identification is provided by accessing the NIT information by hunting for a DVB S signal from one of the transponders Digital TV pictures DVB S Free to Air can be displayed with sound DVB S S2 MPEG2 MPEGA digital signals can be tuned in and locked The Digital Mode shows extended information of Modulation SIG SNR BER MER anda constellation diagram The Satellite Name and position are shown using the Network nformation Table in the MPEG transport stream Channel detail or Service Information can also be displayed for a transponder if needed The user memory positions save spectrum displays analog channels digital channels and Saved spectrum positions can be mixed simultaneously with an actual reading for easy comparison and control of signal levels Measurements on group of channels can be made with up to 10 frequencies simultaneously with automatic polarization and band selection For Universal LNBs the polarisation V H is switchable by 13 18V and Lo Hi band with 22 kHz tone The instrument features circuitry protection to prevent short circuits during connection of the LNB The DiSEqC function controls all DISEqC accessories such as switches and positioners Digital TV DVB T T2 C Instrument mode The Spectrum is shown from 2MHz to 900MHz and can be zoomed to smaller segments minimum 13MHz spa

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