Planar IT-088 Скачать руководство пользователя страница 81 | Manualshive

Страница: 81 / 82

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81

Table 11.4 (continued)
Ref.

Channel

F bottom

F top

F video

F audio

77

78

594 600 595.25

599.75

78

79

600 606 601.25

605.75

79

80

606 612 607.25

611.75

80

81

612 618 613.25

617.75

81

82

618 624 619.25

623.75

82

83

624 630 625.25

629.75

83

84

630 636 631.25

635.75

84

85

636 642 637.25

641.75

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79
80
81
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Содержание IT-088

Страница 1: ...IT 088 DIGITAL DVB T SIGNAL ANALYZER OPERATING MANUAL...

Страница 2: ...2 31 03 10...

Страница 3: ...C Measurement Mode 23 4 3 9 DVB T H CONSTELLATION Measurement Mode 25 4 3 10 Measurement Parameters Setting Mode 27 4 4 DATA LOGGER FUNCTION 28 4 4 1 General Information 28 4 4 2 Channel Plan List 28...

Страница 4: ...igital Signal Measurement Mode 53 4 10 10 Data Logs Management 54 4 10 11 Channel Plan Management 58 4 10 12 TV System Editor 60 4 10 13 Report Viewing and Printout 61 4 10 14 Program Settings 61 4 10...

Страница 5: ...086 Optical Power Meter MC 086 module plugged in measuring at 50 dBm to 18 dBm range and wavelengths 1310 and 1550 nm IT 087 Digital TV QAM Signal Analyzer MC 087 module plugged in 47 to 862 MHz rang...

Страница 6: ...y FEC Forward Error Correction IF Intermediate Frequency HF High Frequency CDL Channel Data Logger SDL Spectrum Data Logger MER Modulation Error Ratio BER Bit Error Rate QPSK Quadrature Amplitude Modu...

Страница 7: ...H signals channel frequency number of subcarriers guard interval FEC channel bandwidth and modulation type The IT 088 can be connected to a personal computer to access additional modes The IT 088 ope...

Страница 8: ...5 Ohm b input impedance for frequencies up to 50 Hz at least 200 kOhm Allowed resulting value of AC input voltage for frequencies over 5 MHz 3 V Allowed resulting value of AC and DC input voltage for...

Страница 9: ...red by external source 24 hrs Battery duration under normal conditions 2100 mAh battery capacity 6 hours Mean time between failures no less than 10000 hours Average lifetime no less than 5 years Dimen...

Страница 10: ...The block diagram of IT 088 is shown in figure 2 3 Figure 2 3 After the Low Pass Filter LPF the input signal if necessary is strengthened by the Wide Band Amplifier WBA or reduced by the two Attenuat...

Страница 11: ...se Unit dimensions are 200x90x55 mm MC 088 Removable Module with 70x57x26 mm dimensions is plugged in the Base Unit and connected to it via specific connector The front panel of the Base Unit contains...

Страница 12: ...s Operating Manual as well as to inspect the location of the controls and indicators of the Analyzer see section 4 1 To prepare your Analyzer for operation with the external power source proceed as fo...

Страница 13: ...itions then the message similar to that in figure 4 2 will appear on the screen In case any defect has been detected one of the error messages described in section 4 6 will appear Then the TV system t...

Страница 14: ...the measured signal frequency to the video carrier frequency of the 25 TV channel pressing 2 5 MENU ENTER The second line will display the frequency value 503 250 MHz The third line will show the chan...

Страница 15: ...with graphic representation in DVB T H GRAPHIC mode h DVB c reception quality measurement with constellation diagram in DVB T H CONSTELLATION mode The c d and e modes perform bar graph measurements To...

Страница 16: ...fter you pressed MENU ENTER key the previously saved channel number value will be restored To enter the frequency value from the keypad first press F2 enter frequency message will be for a short momen...

Страница 17: ...requency band of the measurement K correction factor This method is fast and rather accurate only if the spectrum is almost uniform throughout the channel band If the spectrum variation is high this m...

Страница 18: ...0 and 20 dB Div To set the scanning start press F3 key Start 50 MHz message will appear Use and arrows to select the start of the sweep with 5 MHz step To set the frequency scale press F4 Span 2 MHz D...

Страница 19: ...ny channel using the alphanumeric keypad in this case the channel number will be displayed in position indexed 1 and the parameters of the channel will be shown in positions indexed 2 3 and 5 If the c...

Страница 20: ...er press MENU ENTER In this mode you can adjust the magnitude scale parameters scale division and shift Select the required parameter by F1 or F2 section 4 3 3 and set the value by and keys To set the...

Страница 21: ...tal stream after Viterbi decoder postBER The postBER value will be indicated depending on achievement of the threshold value 2x10 4 If the postBER value is under the threshold you will see pass allowe...

Страница 22: ...l name If the entered frequency is not equal to the value of frequency point in the frequency plan the name of the frequency point is displayed on white background without color inversion If no channe...

Страница 23: ...B T H GRAPHIC Measurement Mode The icon in the main menu refers to this mode Before measuring the Demodulator tuning message will appear on the screen and in several seconds the DVB T H demodulator wi...

Страница 24: ...ere are no digital channels in the selected channel plan No digital channels in selected ch plan message will appear on the screen when you enter this mode and the Analyzer will switch to operation mo...

Страница 25: ...n The main menu of the mode displays the table of parameters featuring the input DVB T H signal quality and constellation diagram The view of the screen is shown in figure 4 12 Figure 4 12 The top lin...

Страница 26: ...nel name If the entered frequency is not equal to the value of frequency point in the frequency plan the name of the frequency point is displayed on white background without color inversion If no chan...

Страница 27: ...e 0 5 sec The time indicated for the starting cycle is shown for the spectrum analyzer with the scan scale of 2 MHz Div d Averaging Selection of the measured data analysis procedure This parameter adj...

Страница 28: ...table into columns The first column is a plan number from 1 to 32 Using arrows or by means of the alphanumeric keypad you can select the channel plan If you entered the number the channel will appear...

Страница 29: ...quency point Delete Select by F3 Allows deleting the selected frequency point d creating a new frequency point New Select by F4 Allows creating the new frequency point Creation of a new frequency poin...

Страница 30: ...the following values of the channel parameters For analogue channels set the frequency to the video carrier value The noise measurement frequency should be set 500 kHz lower than that of the audio ca...

Страница 31: ...nges made to the frequency point by pressing F2 Save or abort the mode without saving changes pressing F1 Exit If the frequency of a frequency point was changed the point may appear in the channel pla...

Страница 32: ...ion section 4 3 10 the Analyzer will define the modulation type and symbol rate After the Analyzer has completed scanning all the TV channels it will switch to channel plan editing mode section 4 4 2...

Страница 33: ...r basic and digital parameters You can switch between these views by means of and arrows The top line of the table divides the table into columns The first column is the number of the frequency point...

Страница 34: ...parameter defines the minimum possible value of video carrier level Can be adjusted within 45 95 dB V The default value is 60 dB V b Level Vid max The parameter defines the maximum possible value of...

Страница 35: ...n Control the cursor and parameters as described for SCAN measurement mode To save the results of the scanning and checking of the CDL page select Save by pressing F2 The following data will be saved...

Страница 36: ...plays the scanning limits First column index 2 shows the page numbers form 1 to 110 The second column index 3 is the start frequency The third column index 5 is the stop frequency The second screen fi...

Страница 37: ...scanning will measure signal level in the channels within the scan range and will determine the optimal value of the attenuation If you re scanning the page the attenuation will take on the last value...

Страница 38: ...with caution Incorrect actions may lead to partial or total data loss 4 5 2 Operating the Memory Manager The icon in the main menu corresponds to the memory manager mode See figure 4 28 Figure 4 28 T...

Страница 39: ...contain clusters common with other files The number of damaged files is indicated in the third line When the damaged files are detected it is necessary to manually determine the names of the files an...

Страница 40: ...damaged files must be deleted Select the required file by and arrows and press F2 to delete it Delete command To exit the mode press F1 If the structure type of the memory cannot be identified by the...

Страница 41: ...the signal level use the temperature parameter If the temperature value is within the allowed range of 10 to 50 0 then norm status will be displayed at the end of the value line If the temperature is...

Страница 42: ...ror status is displayed in this case the Analyzer should be sent to repair service to have the defects corrected 4 6 7 Removable Module Check This program checks the condition of the Removable Module...

Страница 43: ...consider that operation with the backlight in on mode decreases the time of continuous operation 4 7 3 LCD Contrast Setting The screen contrast can change with time or with the change in the environme...

Страница 44: ...keys To set the time in minutes press again Set the required value by and To set the time value in seconds press Pressing or keys you can set the zero value for seconds Press key three times to retur...

Страница 45: ...sound check mode is active and attenuator auto selection is on section 4 3 10 the attenuation value will be determined only once at measurement mode start If in the process of measurements the signal...

Страница 46: ...click Browse button Select the required path and click OK The following steps will be fulfilled automatically If everything is correct the information window indicating successful installation will a...

Страница 47: ...4 37 is located at the top of the main window under the title bar All the functions of the program can be accessed via the menu bar You can also access the most frequently used functions using the but...

Страница 48: ...omatically appears when at least one marker is active and shuts down when the last marker is deleted Figure 4 39 The status bar is located at the bottom of the main window It indicates the condition a...

Страница 49: ...hannel level for digital channels V A ratio for analogue channels and C N ratio In the upper right corner the TV system and selected channel plan information will be indicated The diagram is also used...

Страница 50: ...diagram panel 4 10 7 4 Channel Diagram Report Viewing and Printout The channel diagram report can be represented as a table or a graph The table report is a set of values of signal parameters measure...

Страница 51: ...s in the specified frequency points in the form of the table 4 10 8 2 Frequency Markers The frequency marker is an additional element of the spectrum panel The marker allows viewing the signal level i...

Страница 52: ...is allows to use these data for pasting into other electronic documents and perform the calculations You can save the spectrum diagram into one of the following three formats a text file txt b comma s...

Страница 53: ...e as shown below In this mode you can select any channel of the current TV system You can select the channel using Frequency MHz or Channel fields You can set modulation Modulation and other parameter...

Страница 54: ...raphic indicator The Error counter data field displays the number of errors detected during the time indicated in the Accum period field Reset button allows to zero the error counter and restart the c...

Страница 55: ...l search line to be found or partial entries are also acceptable The checkmark shows that the exact sample will be searched for No checkmark in this checkbox shows that the search will be performed fo...

Страница 56: ...ared after you close the data log manager The selected log page can be saved into a file in one of the following four formats a channel data log page file nb b text file txt c MS Excel file csv d imag...

Страница 57: ...from file button on this panel The Channel Data Logs Computer list is automatically cleared after you close the data log manager The selected log page can be saved into a file in one of the following...

Страница 58: ...nalyzer in scan measurement mode The Analyzer and software can operate up to 32 channel plans There is also a specific plan number 0 whose frequency allocation includes up to 112 TV channels within a...

Страница 59: ...st To edit a plan name select the name in the list of plans and click Edit or use the corresponding command in the right click menu of the list Channel plan parameters dialog will appear Edit the name...

Страница 60: ...mouse click on the required channel In Channel properties dialog set the desired parameters and click OK To create a new TV channel allocation system click Create new empty TV system When the new syst...

Страница 61: ...u can also change the scale using the right click menu in the view area Each report allows entering additional text comments which will appear on the first page under the heading line Enter and edit t...

Страница 62: ...4 54 define the data update parameters If you select Channels and spectrum setting the Analyzer will be updating the channel and spectrum diagrams in turn If you select Only channels setting the Analy...

Страница 63: ...4 56 4 11 Software Updating 4 11 1 Software Updating via PC The IT 088 offers the capability to update its software without use of any additional equipment We go on with development of the Analyzer an...

Страница 64: ...he instructions of the program First a warning notice will appear advising you to power off your IT 088 and check the connection of the cable to the PC serial port Then another information window will...

Страница 65: ...unction menu can be seen in Figure 4 58 Figure 4 58 Upon selection of Memory Manager function the Analyzer will be checking the software condition for approximately 15 seconds Pressing of any button d...

Страница 66: ...d is over the pop up window will announce that the task has been successfully completed The IT 088 will reboot and start operating similar to when it has been powered up CAUTION Do not interrupt the l...

Страница 67: ...he batteries must be removed from the Analyzer in order to be recharged separately or disposed 5 MAINTENANCE Required maintenance is limited to observation of instructions related to proper operation...

Страница 68: ...ode to erase and then test the memory section 4 5 6 Defect detection The startup of DVB T H demodulator is completed with an error Possible reason Corruption of the file with startup parameters Method...

Страница 69: ...accident b the product is tampered with modified or repaired by an unauthorized party c the product s seals are tampered with d the product has mechanical damage The batteries are not included or cove...

Страница 70: ...6 150 158 151 25 157 75 12 S7 158 166 159 25 165 75 13 S8 166 174 167 25 173 75 14 6 174 182 175 25 181 75 15 7 182 190 183 25 189 75 16 8 190 198 191 25 197 75 17 9 198 206 199 25 205 75 18 10 206 21...

Страница 71: ...50 S40 462 470 463 25 469 75 51 21 470 478 471 25 476 75 52 22 478 486 479 25 484 75 53 23 486 494 487 25 492 75 54 24 494 502 495 25 500 75 55 25 502 510 503 25 508 75 56 26 510 518 511 25 516 75 57...

Страница 72: ...724 75 83 53 726 734 727 25 732 75 84 54 734 742 735 25 740 75 85 55 742 750 743 25 748 75 86 56 750 758 751 25 756 75 87 57 758 766 759 25 764 75 88 58 766 774 767 25 772 75 89 59 774 782 775 25 780...

Страница 73: ...67 174 168 25 173 75 14 5 174 181 175 25 180 75 15 6 181 188 182 25 187 75 16 7 188 195 189 25 194 75 17 8 195 202 196 25 201 75 18 9 202 209 203 25 208 75 19 10 209 216 210 25 215 75 20 11 216 223 21...

Страница 74: ...53 21 470 478 471 25 476 75 54 22 478 486 479 25 484 75 55 23 486 494 487 25 492 75 56 24 494 502 495 25 500 75 57 25 502 510 503 25 508 75 58 26 510 518 511 25 516 75 59 27 518 526 519 25 524 75 60...

Страница 75: ...26 734 727 25 732 75 86 54 734 742 735 25 740 75 87 55 742 750 743 25 748 75 88 56 750 758 751 25 756 75 89 57 758 766 759 25 764 75 90 58 766 774 767 25 772 75 91 59 774 782 775 25 780 75 92 60 782 7...

Страница 76: ...13 210 216 211 25 215 75 13 14 470 476 471 25 475 75 14 15 476 482 477 25 481 75 15 16 482 488 483 25 487 75 16 17 488 494 489 25 493 75 17 18 494 500 495 25 499 75 18 19 500 506 501 25 505 75 19 20...

Страница 77: ...704 710 705 25 709 75 53 54 710 716 711 25 715 75 54 55 716 722 717 25 721 75 55 56 722 728 723 25 727 75 56 57 728 734 729 25 733 75 57 58 734 740 735 25 739 75 58 59 740 746 741 25 745 75 59 60 746...

Страница 78: ...tinued Ref Channel F bottom F top F video F audio 77 78 854 860 855 25 859 75 78 79 860 866 861 25 865 75 79 80 866 872 867 25 871 75 80 81 872 878 873 25 877 75 81 82 878 884 879 25 883 75 82 83 884...

Страница 79: ...25 161 75 12 13 162 168 163 25 167 75 13 14 168 174 169 25 173 75 14 15 216 222 217 25 221 75 15 16 222 228 223 25 225 75 16 17 228 234 229 25 229 75 17 18 234 240 235 25 233 75 18 19 240 246 241 25 2...

Страница 80: ...444 450 445 25 449 75 53 54 450 456 451 25 455 75 54 55 456 462 457 25 461 75 55 56 462 468 463 25 467 75 56 57 468 474 469 25 473 75 57 58 474 480 475 25 479 75 58 59 480 486 481 25 485 75 59 60 486...

Страница 81: ...F top F video F audio 77 78 594 600 595 25 599 75 78 79 600 606 601 25 605 75 79 80 606 612 607 25 611 75 80 81 612 618 613 25 617 75 81 82 618 624 619 25 623 75 82 83 624 630 625 25 629 75 83 84 630...

Страница 82: ...82...

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