ADInstruments DTVLINK-T2 Operation Manual
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ADInstruments DTVLINK-T2 Operation Manual

Dvb-t2 signal analysis meter
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Summary of Contents for ADInstruments DTVLINK-T2

  • Page 1 ： ：...
  • Page 2 © AD INSTRUMENTS AD INSTRUMENTS Part No.: DTVLINK-T2 All rights reserved.
  • Page 3 Warranty The instrument is warranted for 12 months under normal operating conditions (except batteries and LCD). Users should read manual carefully before first use and operate correctly according to the manual. AD INSTRUMENTS shall have no responsibility for any defect or damage caused by improper use and maintenance or for any product which has been repaired or altered by any one others not AD INSTRUMENTS or our authorized service center.
  • Page 4 INDEX 1. General Introduction..........1 1.1 Channel Measurement ····································· 3 1.2 Constellation Diagram ······································ 3 1.3 Tilt/Level List ···················································· 3 1.4 Hum Measurement ·········································· 4 1.5 Channel Scanning ············································· 4 1.6 Spectrum Scanning ··········································· 4 1.7 Limit Measurement ·········································· 4 1.8 Voltage Measurement ······································...
  • Page 5 3. Using the Instrument .......... 11 3.1 Function Menu Display ··································· 11 3.2 Learn User Channel Plan ································· 13 3.3 Level Measurement ·········································17 3.3.1 Analogue channel measurement ············ 20 3.3.2 Digital channel measurement ················· 24 3.3.3 Limit Display ············································ 28 3.4 Constellation Diagram ····································...
  • Page 6 3.12.2 Limit Edit ··············································· 59 3.13 Return Path Spectrum ·································· 61 3.14 File Management ··········································62 3.14.1 File Directory ·········································62 3.14.2 Save File ················································ 63 3.14.3 Read File ··············································· 65 3.14.4 Delete File ··············································70 4. Setup ..............71 4.1 Brief Introduction ··········································· 71 4.2 INFORMATION ················································...
  • Page 7 4.4.5.3 Temperature Inside ······························ 89 4.5 Channel Plan ··················································· 91 4.5.1 Select User Plan ······································ 91 4.5.2 Channel Number Type ·····························92 4.5.3 Learn User Plan ········································92 4.5.4 Edit User Plan ·········································· 93 5. Power Supply ............95 5.1 Battery ···························································· 95 5.2 Charging ·························································...

  • Page 9: General Introduction

    DTVLINK-T2 Operation Manual 1. General Introduction DTVLINK-T2 is an ideal meter for DVB-T/T2 and DVB-C signals testing, which is a new model with color screen and high performance. It demodulates and accurately measure the COFDM signals carried through the terrestrial TV system. Also it supports main function of CATV system measurement, including digital TV and analog TV.
  • Page 10 DTVLINK-T2 Operation Manual Features: * QAM and QPSK Test * Level Test * Constellation Diagram * Channel Scanning * Spectrum Scanning * Tilt Test * Limit Test * HUM * Voltage Measurement * Multiple User Channel Plan Setup * File Management...

  • Page 11: Channel Measurement

    DTVLINK-T2 Operation Manual Basic Functions Overview 1.1 Channel Measurement DTVLINK-T2 supports accurate signal level test in analogue TV, DVB-T/T2 signals and single frequency modes. For Analogue channels, you can get video level, audio level and △ V/A etc. For DVB-T channels, DTVLINK-T2 supports modulation modes of QAM and QPSK.

  • Page 12: Hum Measurement

    1.7 Limit Measurement DTVLINK-T2 can fast check the cable system by the limit test function. Each enabled channel will be tested according to the limits setup by user, and after the...

  • Page 13: Voltage Measurement

    HUM test for analogue TV channel. User can manage and analyze these files via meter or PC. 1.11 Intelligent Power Management DTVLINK-T2 with full charged is able to work over 5 hours. The power supply monitoring system will monitor the status of power and ensure the...

  • Page 14: Dvb-C Channel Measurement

    DTVLINK-T2 Operation Manual NOTE: Charge the battery before first use. Refer to 5.2 1.12 DVB-C channel measurement DTVLINK-T2 supports accurate signal level test in DVB-C signals mode. For DVB-C channels, DTVLINK-T2 supports modulation mode of QAM. Here, you can get Channel Power, MER and BER and Constellation Diagram.

  • Page 15: Introduction

    DTVLINK-T2 Operation Manual 2. Introduction 2.1 Appearance Get acquainted with the appearance before use： RF Interface Keyboard POWER Charge Status Serial Charge Port Interface...

  • Page 16: Keypad

    2.2.3 Character/Digit Input Entering Numeric Values: Within several displays, you must enter numeric values. Here, press the number buttons to enter the desired value directly. Then press ENTER( ) key to enter the value into the DTVLINK-T2.
  • Page 17 DTVLINK-T2 control to a new number or letter. NOTE: If you make an error when entering a number or a name, you can press BACK( ) key to go back and then re-enter it.

  • Page 18: Display Description

    DTVLINK-T2 Operation Manual 2.3 Display Description...

  • Page 19: Using The Instrument

    DTVLINK-T2 Operation Manual 3. Using the Instrument 3.1 Function Menu Display Figure3-1-1 The Figure 3-1-1 Display the Main Menu which include all of the function icons. Soft Keys: : Enter the selected shortcut interface. : Switch the selected shortcut on the left direction circularly.
  • Page 20 DTVLINK-T2 Operation Manual Function keys: : Switch the selected shortcut on the up direction circularly. : Switch the selected shortcut on the down direction circularly. The selected shortcut will displays in highlight.

  • Page 21: Learn User Channel Plan

    3.2 Learn User Channel Plan In order to enhance your work efficiency, please create user channel plan before measurement. DTVLINK-T2 will choose all effective channels in the cable system automatically and save in this channel plan. The User Channel Plan includes three elements as...
  • Page 22 DTVLINK-T2 Operation Manual Figure3-2-1 Then press the select the CHANNEL PLAN item, as Figure3-2-2. Figure3-2-2 Now press into Figure3-2-3 CHANNEL PLAN, then press select the user channel plan.
  • Page 23 DTVLINK-T2 Operation Manual Figure3-2-3 Press to select the LEARN CHANNEL PLAN item, and press , the LEARN CHANNEL PLAN function displays as Figure 3-2-4. Figure3-2-4 Press to select one channel type.
  • Page 24 DTVLINK-T2 Operation Manual Press into Parameter setting, you can define the channel plan as Analogue channel plan, digital channel plan or analog/digital mixed channel plan. Also you can edit “Bandwidth, Modulation type, Symbol Rate” in digital channel plan. When your setup is completed, please press to START, then press creat your user channel plan.
  • Page 25 DTVLINK-T2 Operation Manual 3.3 Level Measurement Press return to main menu, press the to select the LEVEL shortcut as Figure3-3-1.Then press Figure3-3-1...
  • Page 26 DTVLINK-T2 Operation Manual If there is no valid channel to test, the screen will display as figure 3-3-2. Now, if you want to do any test in this function, you have to create a valid channel with press Figure3-3-2 The channel list will display as figure 3-3-3. Press to select the channel, and here, Press will page up or page down the channel list.
  • Page 27 DTVLINK-T2 Operation Manual Figure 3-3-3 Figure 3-3-4 Press select channel parameters, if the selected parameter could be changed, press to change. As the figure 3-3-4, ensuring the STATUS is enable, the channel will be enabled.

  • Page 28: Analogue Channel Measurement

    DTVLINK-T2 Operation Manual 3.3.1 Analogue channel measurement If the current channel is a valid analogue channel, The Level function will display as Figure3-3-5, three test results are displayed in the screen, include Video, audio and V/A. : Video Level : Audio Level...
  • Page 29 DTVLINK-T2 Operation Manual CH INFO ( ): Press this button will display the channel information of this analogue channel as figure 3-3-6. The channel parameters also can be modified in this screen. Figure 3-3-6 ONE CHN/ADJ CHN ( ): The user can switch display mode between One Channel and ADJ Channel.
  • Page 30 DTVLINK-T2 Operation Manual Figure 3-3-7 is used for switch channels circularly. If the next channel is digital channel, the screen will chapter be changed. (Refer to 3.3.2.) ): Press this button to next page as figure 3-3-8, the user can press this button again to return.
  • Page 31 DTVLINK-T2 Operation Manual FREQ( ): Press this button to show single frequency measurement interface as figure 3-3-9, the user can modify the frequency, press this button again to return. is used for switch frequency circularly. SAVE( ): Press this button to save the result of level test.

  • Page 32: Digital Channel Measurement

    DTVLINK-T2 Operation Manual 3.3.2 Digital channel measurement DTVLINK-T2 is able to measure POWER, MER and BER. As figure 3-3-10. Figure3-3-10 CH INFO ( ): Press this button will display the channel information of the current channel, as figure 3-3-11. The channel parameters also can be modified...
  • Page 33 DTVLINK-T2 Operation Manual Figure 3-3-11 ONE CHN/ADJ CHN ( ): The user can switch display mode between One channel and ADJ channel. One channel mode: The histogram shows the Power of current channel only. ADJ channel mode: The histogram shows the Power of...
  • Page 34 DTVLINK-T2 Operation Manual Figure 3-3-12 ): Press this button to next page as figure 3-3-13, the user can press this button again to return. Figure 3-3-13...
  • Page 35 DTVLINK-T2 Operation Manual are used for switching channels circularly. If the next channel is analogue channel, the screen will be displayed as figure 3-3-5, and if the next channel is digital channel, the screen will be display as figure 3-3-10.

  • Page 36: Limit Display

    DTVLINK-T2 Operation Manual 3.3.3 Limit Display PASS FAIL in big font is displayed in the screen to indicate the quality of current channel as the figure 3-3-5 and figure 3-3-10, the limit value to judge the quality of channel can be showed in the measurement setup menu, and also can be modified.

  • Page 37: Constellation Diagram

    CONSTEL icon, and then press to enter constellation measurement. DTVLINK-T2 constellation diagram function supports modes of QAM and QPSK. Here, you can get channel POWER, MER, BER (CBER and VBER) and constellation diagram, Constellation diagram shows as figure 3-4-1.
  • Page 38 DTVLINK-T2 Operation Manual Soft Keys Operation: CH INFO ( ): Press this button to display the current channel information as figure 3-4-2,and user can modify all of the parameters in this menu. Figure 3-4-2 FREQ ( ): Press this button to display the current...
  • Page 39 DTVLINK-T2 Operation Manual Figure 3-4-3 ):Press this button to next page as figure 3-4-4, Figure 3-4-4...
  • Page 40 DTVLINK-T2 Operation Manual CARRIER( ): Press this button, user can modify the carrier number by keyboard as figure 3-4-5. Note: Here, the MER just measure one carrier which you modified by the keyboard. Or it is the average MER for all carriers when the “CARR”...
  • Page 41 DTVLINK-T2 Operation Manual Figure 3-4-6 QUADRANT ( ): Press this button, switch the select quadrant on clockwise direction. ZOOM IN/ZOOM OUT ( ): Press this button and switch the status of constellation diagram between zoom in and normal mode. Press zoom in key again,...
  • Page 42 DTVLINK-T2 Operation Manual Figure3-4-7 are used for switching digital channels circularly.
  • Page 43 DTVLINK-T2 Operation Manual Note: This function only supports digital channels, if the current user plan doesn’t have any digital channels, the screen will show as figure 3-4-8. Figure 3-4-8...

  • Page 44: Ber Statistics Measurement

    BER statistics icon, and then press to enter statistics measurement. DTVLINK-T2 is able to make BER statistics during set time, the user can get MER, BER, ES, SES, COR, UNCOR, SUM bits and TOTAL BER as figure 3-5-1. Figure 3-5-1...

  • Page 45: Parameter Description

    DTVLINK-T2 Operation Manual 3.5.1 Parameter Description abbreviations meaning Error seconds During 1s, there are one or more mistakes which can be corrected or not be corrected, and then ES plus1 Serious error seconds, During 1s, if the result of the number of errors that can not be correct divided the total bits >...
  • Page 46 DTVLINK-T2 Operation Manual TIME ( ): Press this button to set the statistics time, DTVLINK-T2 supports several fixed time(5 minutes, 15 minutes, 30 minutes, 60 minutes, 2 hours, 6 hours, 12 hours, 24 hours, and 48hours). START/STOP ( ):Press this button will start or stop the statistics process and the screen will show as figure 3-5-2.

  • Page 47: Spectrum Scanning

    DTVLINK-T2 Operation Manual 3.6 Spectrum Scanning Press to return to main menu interface and press to select the SPECT icon, and then press to enter spectrum function. DTVLINK-T2’s spectrum function supports double-marker display and peak-hold function as Figure 3-6-1. Here, span, frequency(5MHz~1052MHz), sampling mode and etc….

  • Page 48: Soft Keys Operation

    DTVLINK-T2 Operation Manual 3.6.1 Soft Keys Operation TAB ( ): Press to modify the cursor location, and the selected parameter can be modified by press ,or by figure Input directly. AUTO ( ): Press AUTO soft key to adjust reference level and scale quickly.

  • Page 49: Parameter Setting

    DTVLINK-T2 Operation Manual STOP ( ): Pressing STOP soft key, the scanning will be stopped, and you can continue the scanning by press it again. SAVE ( ):Press SAVE soft key to save the result of scan test. 3.6.2 Parameter Setting You can modify or adjust measurement parameter.
  • Page 50 DTVLINK-T2 Operation Manual REF(REFERENCE LEVEL): After selecting the REF parameter, show as figure 3-6-3, press to adjust the reference level. Note: The character/digit keys input is not support in REF term. TRC: After selecting the TRC parameter, press to select the sampling mode (AVG or PEAK), AVG: sample average mode, the display result of each point will be an average of several sample value.
  • Page 51 DTVLINK-T2 Operation Manual Figure 3-6-4 SCALE: After selecting the SCALE parameter, press to choose one scale from 1dB/, 2dB/, 5dB/ and 10dB/. CENT(CENTER FREQUENCY): After selecting the CENT parameter, you can input the center frequency by the character/digit keys. Note: In Spectrum Scanning function, any frequency from 5 to 1052MHz can be input.
  • Page 52 DTVLINK-T2 Operation Manual screen will display both the max value and the real-time value of each point. MARKER A: After selecting the MARKER A parameter, the red marker A becomes active marker, pressing can move the red marker to the wanted view point.

  • Page 53: Tilt/Level List Measurement

    Tilt/Level list test is the effective solution to check the flatness and splitter’s gain cable system, DTVLINK-T2 can get levels of 12 channels and observe the measurement result and graph easily. Press to return to main menu interface, and press...
  • Page 54 DTVLINK-T2 Operation Manual In Figure 3-7-1, press to enter the tilt channels setup menu, select the channels that you want to do tilt test as Figure 3-7-2; press change the highlight line, and then press the select or unselect the channel,...

  • Page 55: Tilt Graph Mode

    DTVLINK-T2 Operation Manual After selected，Press to return to main menu interface, and press the again to enter the Tilt/Level List measurement. Tilt measurement can be continued. 3.7.1 Tilt Graph Mode In tilt test interface, the channels will be displayed as histogram, and test result will be displayed at the bottom of screen as Figure 3-7-3.

  • Page 56: Tilt List Mode

    DTVLINK-T2 Operation Manual 3.7.1.1 Soft Keys Operation LIST ( ): Press LIST soft key to enter level list mode, as Figure 3-7-4. Figure 3-7-4 SAVE ( ):Press this button to save the result of tilt test. SETUP ( ): When testing, press this button to enter into Figure 3-7-2 to re-select tested channels.
  • Page 57 DTVLINK-T2 Operation Manual 3.7.2.1 Soft Keys Operation GRAPH( ): Press this button to enter Tilt mode, as Figure 3-7-3. SAVE ( ):Press this button to save the result of level test. SETUP ( ): When testing, press this button to enter into Figure 3-7-2 to re-select tested channels.

  • Page 58: Channel Scanning

    DTVLINK-T2 Operation Manual 3.8 Channel Scanning DTVLINK-T2 support channel scanning function in order to test the flatness and amplitude of cable TV system quickly. Press to return to main menu interface and press to select the SCAN icon, and then press to enter Channel Scanning function as Figure 3-8-1.

  • Page 59: Soft Keys Operation

    DTVLINK-T2 Operation Manual Yellow color represents audio level of analogue channels. Blue color represents power of digital channels. The scan function also display the channel number of scanning start channel and end channel. 3.8.1 Soft Keys Operation TAB ( Press this button can modify the cursor location.
  • Page 60 DTVLINK-T2 Operation Manual ×1: Max display 30 channels in the screen. ×2: Max display 50 channels in the screen. ×3: Max display 75 channels in the screen. ×4: Max display 150 channels in the screen. ×5: Max display 255 channels in the screen.
  • Page 61 DTVLINK-T2 Operation Manual Figure 3-8-2 STOP ( ): Press STOP soft key, the scanning will stop, and you can continue the scanning by pressing it again. SAVE ( ):Press this button to save the result of scan test.

  • Page 62: Hum Measurement

    DTVLINK-T2 Operation Manual 3.9 HUM Measurement DTVLINK-T2 support HUM measurement to analogue channel. Press to return to main menu interface and press to select the HUM icon, and then press to enter HUM function. Show as Figure 3-9-1. HUM modulation is also named power hum modulation distortion, which caused by low-frequency interference of the power.

  • Page 63: Soft Keys Operation

    DTVLINK-T2 Operation Manual 3.11.1 Soft Keys Operation 50Hz/60Hz( ): Press to switch the frequency of system power between 50Hz and 60Hz,as figure 3-9-2. Figure 3-9-2 SAVE ( ):Press this button to save the result of HUM test . are used to switch analogue channels circularly.

  • Page 64: Limit Measurement

    LIMIT function. As shown in figure 3-10-1, Figure 3-10-1 DTVLINK-T2 is able to detect cable TV system rapidly, and check out the number of unqualified channels and the reason of unqualified channels. The amplitude of each channel of selected user plan is checked one by one.

  • Page 65: Test Results List

    DTVLINK-T2 Operation Manual 3.10.1 Test Results List After the limit test scanning, the general test results of cable system will be listed. The test items are consist of minimum video level, maximum video level, △V/A, maximum delta video level, minimum maximum △V/A and maximum △ADJ channels.
  • Page 66 DTVLINK-T2 Operation Manual Press to list as figure 3-10-3. Figure 3-10-3 Press to view the graph as figure 3-10-4. Figure 3-10-4...

  • Page 67: Limit Edit

    DTVLINK-T2 Operation Manual ):Press this button to next page as figure 3-10-5, the user can press this button again to return. Figure 3-10-5 RETEST ( ):Press RETEST to retest. SAVE ( ):Press SAVE soft key to save the result of Limit test .
  • Page 68 DTVLINK-T2 Operation Manual Figure 3-10-6 If you want to change a parameter ,press select the parameter, press to change. Press to LOAD DEFAULT ,and then press you can select the default. (To view the detailed setting,please refer to 4.4.3)

  • Page 69: Return Path Spectrum

    DTVLINK-T2 Operation Manual 3.11 Return Path Spectrum Press to return to main menu interface and press to select the R-PATH icon, and then press to enter R-PATH function, as Figure 3-11-1. Figure3-11-1 In the interface of the R-PATH function, the default...
  • Page 70 FILE management function as Figure 3-12-1. Figure 3-12-1 DTVLINK-T2 has independent memory space to store the measurement data, which includes level, scan, tilt, limit, spectrum and HUM test results. 3.12.1 File Directory In file list menu, All saved files was list with file names,...

  • Page 71: Save File

    , the file list menu will display as figure3-12-2. Figure 3-12-2 ) : press this button, a “SAVE THE FILE” NEW( dialog show as figure 3-12-3. DTVLINK-T2 will give a default name for new file, also you can rename it using the character/digit keys.
  • Page 72 DTVLINK-T2 Operation Manual Figure 3-12-3 After rename the new file, press DATA LIST, all the parameters could be saved have been listed, and the default status is that all parameters have been selected as figure 3-12-4. Figure 3-12-4...

  • Page 73: Read File

    DTVLINK-T2 Operation Manual Press to modify the cursor location, and then press to select or unselect the data item as figure 3-12-5. Figure 3-12-5 SAVE( ): Press this button to finish saving a file, after finished save file, the screen will return file list menu.
  • Page 74 DTVLINK-T2 Operation Manual Figure 3-12-6 Normally, the data items can be opened using LIST mode( Press to select the data item, and then press (LIST) to list a data item in LIST mode as figure 3-12-7, 3-12-8, 3-12-9, 3-12-10, 3-12-11, 3-12-12.
  • Page 75 DTVLINK-T2 Operation Manual Figure 3-12-7 Figure 3-14-8 is Tilt measurement results List. Figure 3-12-8...
  • Page 76 DTVLINK-T2 Operation Manual Figure 3-12-9 is Scan measurement results List. Figure 3-12-9 Figure 3-12-10 is spectrum measurement results List. Figure 3-12-10...
  • Page 77 DTVLINK-T2 Operation Manual Figure 3-12-11 is HUM measurement results List. Figure 3-12-11 Figure 3-12-12 is Limit measurement results List. Figure 3-12-12...
  • Page 78 DTVLINK-T2 Operation Manual 3.12.4 Delete File In file list menu as figure 3-12-2, Select one file by press and press DELETE( ) to delete this selected file, the “DELETE FILE” dialog will display as figure 3-12-13. Figure 3-12-13 Press (YES) in figure 3-12-13 to return file list menu with delete select file.

  • Page 79: Setup

    SETUP menu as Figure 4-1-1. Figure 4-1-1 *INFORMATION: General information DTVLINK-T2, includes manufacturer information, version and so on. *GENERAL: The setup includes auto shutdown time setting, language selection, date and time setting, files status and option selection(Select the DVB-C...
  • Page 80 DTVLINK-T2 Operation Manual *MEASUREMENT: Level unit, Level Calibrate, Limit setup, Auto Diagnosis and Voltage & temperature measurement. *CHANNEL PLAN : The setup for channel plan includes user plan selection, learn and edit user plan. *LOAD DEFAULT : Load the default values of system...

  • Page 81: Information

    DTVLINK-T2 Operation Manual 4.2 INFORMATION This is the information of the instrument, Refer to Figure 4-2-1. It includes serial number, software version, hardware version, calibration date and so on. Figure 4-2-1...

  • Page 82: General

    3 minutes, 5 minutes, 10 minutes ,30 minutes and ON(never shutdown mode ), as Figure 4-3-1. Figure 4-3-1 4.3.2 Language Selection The language of DTVLINK-T2 can switch among English, Turkish, Spanish and Chinese as figure 4-3-2. After choose, instrument will...

  • Page 83: Date And Time

    DTVLINK-T2 Operation Manual Figure 4-3-2 Note：Contact AD INSTRUMENTS for more languages. 4.3.3 Date and Time When there is something wrong in system date or clock, user can calibrate new date or time, as Figure 4-3-3. Figure 4-3-3...
  • Page 84 DTVLINK-T2 Operation Manual 4.3.4 Files Status This interface shows the number of files have been saved, and also show the Memory status as figure 4-3-4. Figure 4-3-4...

  • Page 85: Option

    DTVLINK-T2 Operation Manual 4.3.5 Option This section is used for user to enable or disable the optional functions by grant authorization. as figure 4-3-5. Figure 4-3-5 In figure 4-3-5, press ENTER( ) and input correct code to enter the option interface, as figure 4-3-6,4-3-7.
  • Page 86 DTVLINK-T2 Operation Manual Figure 4-3-7 Note：Please contact AD INSTRUMENTS or our local distributor to buy the option password. Enable/Disable( ): In figure 4-3-7, user can press to enable or disable the DVB-C option. 4.3.5.1 Enable Optional Function Press ENABLE ( ), screen will display a dialogue to ask for the corresponding password.
  • Page 87 DTVLINK-T2 Operation Manual Figure 4-3-8 Note：Please contact AD INSTRUMENTS or our local distributor to buy the DVB-C/T2 function code. Here user need to input password by character/digit, keys, as figure 4-3-9. Figure 4-3-9...
  • Page 88 DTVLINK-T2 Operation Manual After inputting correct password and press ENTER( the corresponding optional function will be enabled, in figure 4-3-10. Figure 4-3-10 4.3.5.2 Disable Optional Function In figure 4-3-10, press DISABLE ( ) to disable the optional function, screen will display as figure 4-3-11.
  • Page 89 DTVLINK-T2 Operation Manual Figure 4-3-11 In figure 4-3-11, if press YES ( ), the corresponding optional function will be disabled, but if press NO ( the disable command will be canceled and screen will still display as figure 4-3-10.

  • Page 90: Measurement Parameter Setup

    DTVLINK-T2 Operation Manual 4.4 Measurement Parameter Setup 4.4.1 Level Unit Figure 4-4-1 4.4.2 Level Calibrate Figure 4-4-2...

  • Page 91: Limit Setup

    DTVLINK-T2 Operation Manual User can make amendment and compensation of the measure data in all level measurement function, press MODIFY( ) to highlight the level offset box and then press to adjust it and press ENTER( ) to enable the input data.
  • Page 92 DTVLINK-T2 Operation Manual Figure 4-4-5 Figure 4-4-6 Four pages of Limit setting have been provided as Figure 4-4-3, Figure 4-4-4, Figure 4-4-5 and Figure 4-4-6. Five Limit items included in page one(1/4) , which is used for DVB-T singles test. The default value of these Limit items are list as Table 4-4-1.
  • Page 93 DTVLINK-T2 Operation Manual must be larger than six dB. Table 4-4-1 Item Limit Minimum Power 50dBμV Maximum Power 90dBμV MIN MER 10dB CBER 1E-5 VBER 1E-7 Page two(2/4) is used for analog TV test. The default value of these Limit items are list as Table 4-4-2.
  • Page 94 DTVLINK-T2 Operation Manual Page three(3/4) is used for DVB-C singles test. five limit items list include of MIN POWER, MAX POWER, MIN MER, MAX PRE-BER and MAX POST-BER. The default value of these Limit items are list as Table 4-4-3. The difference between MAX POWER and MIN POWER must be larger than six dB.
  • Page 95 DTVLINK-T2 Operation Manual To set the test limit, you can choose limit item by press TAB( ), and then press to adjust it. If you want to load default values of all limit items on each page, please press the TAB(...

  • Page 96: Voltage And Temperature

    DTVLINK-T2 Operation Manual NOTE: Before the auto diagnosis function can be work correctly, the Limit items in section 4-4-3 must be set the valid values. 4.4.5 Voltage and temperature The button “VOL & TEMP” here is used to enter the measurement interface Figure 4-4-8.

  • Page 97: Trunk Voltage(Ac Line)

    DC in the trunk, and display the trunk voltage on the screen as Figure 4-4-9. Figure 4-4-9 4.4.5.3 Temperature Inside DTVLINK-T2 can monitor inside temperature itself, and you can press to choose the display unit: Celsius or Fahrenheit, refer to Figure 4-4-10 and...
  • Page 98 DTVLINK-T2 Operation Manual Figure4-4-10 Figure4-4-11...

  • Page 99: Channel Plan

    A, B, C, D, and E. User can choose one as current user plan as Figure 4-5-1. Then, the meter will measure according to the selected the user plan. Figure 4-5-1 NOTE: DTVLINK-T2 has five default user plans.
  • Page 100 DTVLINK-T2 Operation Manual 4.5.2 Channel Number Type You can set the channel number to be displayed in digital(numeric) mode or standard (alphanumeric) mode. After choose, the meter will show the channel number as you desired in any measurement mode. Refer to Figure 4-5-2.
  • Page 101 DTVLINK-T2 Operation Manual NOTE: The LEARN USER PLAN will build the new user plan and replace the current selected user plan. If build other user plans, you can enter into SELECT USER PLAN and then make the LEARN USER PLAN operation.
  • Page 102 DTVLINK-T2 Operation Manual Figure 4-5-3 EDIT CHANNEL PLAN will show the channels list on the screen as Figure4-5-3 , you can only exit this function by press the HOME( ) key, press to highlight one channel, and press edit status as Figure 4-5-4.

  • Page 103: Power Supply

    DTVLINK-T2 Operation Manual 5. Power Supply 5.1 Battery DTVLINK-T2 uses built-in 12.6V 1.5AH Li-Polymer battery and works over 5 when fully charged. When the voltage of the battery drops below 11V, the battery icon flashes in screen. Once the voltage of the battery is lower than 10.6V, the instrument will shut...

  • Page 104: Charging

    DTVLINK-T2 Operation Manual 5.2 Charging Please charge the instrument as following charging process: 1. Insert the charger output plug to DTVLINK-T2’ DC charge socket. 2. Connect the charger to AC 100V-240V Power and the charger indicator will light with red.

  • Page 105: Port

    DTVLINK-T2 Operation Manual 6. Port The instrument can communicate with a PC through the 5 Pin communication port. Refer to figure 6-1. Figure 6-1 1 ---- TXD 2 ---- RXD 3 ---- NC 4 ----+5V 5 ---- GND Management PC software- Toolbox is provided as standard.

  • Page 106: Specification

    DTVLINK-T2 Operation Manual 7. Specification DVB-T Frequency 5~1052MHz Range Power, MER, CBER, VBER Function Carriers 2K/8K(Set by user) 1/4 、 1/8 、 1/16 、 Guard Interval 1/32(Set by user) Code Rate 1/2、 2/3、 3/4、 5/6、 DVB-T Signal Parameters QPSK 、 16QAM 、...
  • Page 107 DTVLINK-T2 Operation Manual DVB-T2 Frequency 5~1052MHz Range Power, MER, CBER, LBER Function Carriers 2K/8K/4K/1K/16K/32K(Set by user) Guard 1/32、1/16、1/8、1/4、 Interval 1/128 、 19/128 、 19/256 (Set by user) DVB-T2 Signal Code Rate 1/2、3/5、2/3、 3/4、4/5、 Parameters Modulation QPSK、16QAM、64QAM、 256QAM Spectral Automatic Inversion...
  • Page 108 DTVLINK-T2 Operation Manual DVB-C Frequency： Range: 5MHz to 1052MHz Accuracy: ±50×10 (20℃±5℃) Resolution: 10 KHz Receive 280 KHz bandwidth: Channel Type: Analogue TV: Digital TV: 16/32/64/128/256 QAM Analog Level Measurement: Range: 30dBV to 120dBV Accuracy: ±1.5dB Resolution: 0.1dB Input 75Ω...
  • Page 109 DTVLINK-T2 Operation Manual 6/8MHz bandwidth： ～ MER: 39dB（representative） ±2dB Accuracy： BER: 1E-3 to 1E-9 Before and After R-S Decoding Power measure type: Average Power Level range: 30dBV to 110dBV ±2.0dB Accuracy： 0.1dB resolution： Channel Scan： Number of 160 channels max.
  • Page 110 DTVLINK-T2 Operation Manual Number of 4 to 12 channels: Resolution: 0.1dB Trunk Voltage measurement: Input range: 0V to 100V (AC/DC) Accuracy: ±2V Resolution: 0.1V Other function: Storage: 512K byte Communication RS 232C Port: Store -20℃～50℃ Temperature: Dimensions: Handset about 218mm×95mm×49mm...

  • Page 111: Standard Accessories

    DTVLINK-T2 Operation Manual 8. Standard Accessories Standard Accessories Quantit DTVLINK-T2 AC-DC power adapter/charger Data cable(Serial to USB) Carrying bag F connector Manual and Toolbox software CD...
  • Page 112 DTVLINK-T2 Operation Manual Add: Cardeña 9, local 28053 – Madrid – Spain Tel: +34 91 661 30 37 Fax: +34 91 661 49 17 Http:// www.adinstruments.es E-Mail: info@adinstruments.es...

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