Deviser DS2400Q Operation Manual
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Deviser DS2400Q Operation Manual

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Operation Manual
DS2400Q QAM Analyzer
Ver：1.1
© Tianjin Deviser Electronics Instrument Co., Ltd.
Deviser Part No.: 2400-DL
All rights reserved.
Printed in CHINA. Jun. 2011.

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  • Page 1 Operation Manual DS2400Q QAM Analyzer Ver：1.1 © Tianjin Deviser Electronics Instrument Co., Ltd. Deviser Part No.: 2400-DL All rights reserved. Printed in CHINA. Jun. 2011.
  • Page 3 Deviser 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 other not DEVISER or our authorized service center. When the meter need to be repaired or calibrated, Please contact Deviser or our local distributors in your territory.

  • Page 4: Table Of Contents

    INDEX 1. General Introduction ........1 1.1 Channel Measurement ......3 1.2 Constellation Diagram ....... 3 1.3 BER Statistics ..........4 1.4 Tilt/Level List ..........4 1.5 Channel Scanning ........4 1.6 Spectrum Scanning ........4 1.7 Hum Measurement ........5 1.8 Limit Measurement ........
  • Page 5 2.2.1 Soft keys .......... 10 2.2.2 Shortcut keys ........10 2.2.3 Character/Digit Input ......10 2.3 Display Description ........11 3. Using the Instrument ........12 3.1 Function Menu Display ......12 3.2 Learn User Channel Plan ......13 3.3 Level Measurement ......... 18 3.3.1 Analogue channel measurement ..
  • Page 6 3.7.1 Soft Keys Operation ......45 3.8 Spectrum Scanning ......... 48 3.8.1 Soft Keys Operation ......49 3.8.2 Parameter Setting ......50 3.9 HUM Measurement ......... 54 3.9.1 Soft Keys Operation ......55 3.10 Limit Measurement ........ 56 3.10.1 Test Results List ......57 3.10.2 Limit Edit ........
  • Page 7 4.2 INFORMATION ........83 4.3 GENERAL ..........84 4.3.1 Shutdown Time ........ 84 4.3.2 Language Selection ......85 4.3.3 Date and Time ........86 4.3.4 Files Status ........87 4.3.5 System upgrade ....... 87 4.4 Measurement Parameter Setup ....88 4.4.1 Level Unit .........
  • Page 8 5.1 Battery ........... 104 6. Port ............. 107 7. Specification ..........108 8. Standard Accessories ....... 112...

  • Page 9: General Introduction

    DS2400Q QAM Analyzer Operation Manual 1. General Introduction DS2400Q is new model with color screen and high performance, which is developed for digital cable TV analysis by Deviser. This model can measure and display most indexes of Digital TV (Channel...
  • Page 10 DS2400Q QAM Analyzer Operation Manual Features: * QAM, QPSK, COFDM Test * Level Test * Channel Scanning * Spectrum * Tilt * HUM * Voltage Measurement * Multiple User Channel Plan Setup * File Management * Intelligent Power Management * Character /Numeral Input...

  • Page 11: Channel Measurement

    DS2400Q QAM Analyzer Operation Manual 1.1 Channel Measurement DS2400Q supports accurate signal level test in analogue TV, QAM and single frequency modes. For Analogue channels, you can get video level, audio level and △ V/A etc. Digital channels, DS2400Q supports modulation modes of QAM, QPSK and COFDM, Here, you can get Channel Power, MER and BER.

  • Page 12: Ber Statistics

    For Digital channels, you can get MER, BER, ES, SES, COR, UNCOR and etc… 1.4 Tilt/Level List Tilt/Level list test is the effective solution to check the flatness and amplitude, and DS2400Q support 12 channels tilt max. 1.5 Channel Scanning DS2400Q supports video and audio level display of all channels, which could up to 160 channels most.

  • Page 13: Hum Measurement

    1.8 Limit Measurement DS2400Q can fast check the cable system by the limit test function. Each enabled channel will be tested according to the limits set by user, and after the testing, pass/fail indicator can be viewed.
  • Page 14 DS2400Q QAM Analyzer Operation Manual test the cable system. You can set up test items including level, spectrum, limit test, HUM, tilt, etc. And the test result will be saved automatically. DEVISER DS2400Q...

  • Page 15: Voltage Measurement

    DS2400Q QAM Analyzer Operation Manual 1.11 Voltage Measurement DS2400Q can measure battery voltage, trunk voltage and identify AC or DC automatically of the cable system. 1.12 Multiple User Channel DS2400Q can create five user channel plans max, which contains digital channels analog channels or mixed channels.
  • Page 16 DS2400Q QAM Analyzer Operation Manual DS2400Q with full charged is able to work over 5 hours. The power supply monitoring system will monitor the status of power and ensure the instrument in power saving mode. NOTE: Charge the battery before first use.

  • Page 17: Introduction

    DS2400Q QAM Analyzer Operation Manual 2. Introduction 2.1 Appearance Get acquainted with the appearance before use： RF Interface Keyboard Charge Status POWER Serial Charge Interface Port DEVISER DS2400Q...

  • Page 18: Keypad

    DS2400Q QAM Analyzer Operation Manual 2.2 Keypad 2.2.1 Soft keys There are three soft keys ( located under the screen. They are used to access the functions represented by the icons displayed on the bottom of screen. 2.2.2 Shortcut keys...

  • Page 19: Display Description

    DS2400Q QAM Analyzer Operation Manual 2.3 Display Description DEVISER DS2400Q...

  • Page 20: Using The Instrument

    DS2400Q QAM Analyzer Operation Manual 3. Using the Instrument 3.1 Function Menu Display Figure3-1-1 The Figure3-1-1 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 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. DS2400Q will choose all effective channels in the cable system automatically and save in this channel plan. The User Channel Plan includes three elements...
  • Page 22 DS2400Q QAM Analyzer Operation Manual The following is the step of setup user channel plan. 1． Connect the instrument with the cable system. 2． Press return to main menu, and select the Setup shortcut like Figure3-2-1, then press into Setup Menu.
  • Page 23 DS2400Q QAM Analyzer Operation Manual Figure3-2-2 Now press into Figure3-2-3 CHANNEL PLAN, then press select the user channel plan. Figure3-2-3 DEVISER DS2400Q...
  • Page 24 DS2400Q QAM Analyzer Operation Manual 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. Press into Parameter setting, you can define the channel plan as Analogue...
  • Page 25 DS2400Q QAM Analyzer Operation Manual your setup is completed, please press to START, then press to creat your user channel plan. For a while, new user plan will be saved automatically. NOTE: The analog channels with level higher than 45dBμV and digital channel with power level higher than 32dBμV will be enabled in...

  • Page 26: Level Measurement

    DS2400Q QAM Analyzer Operation Manual 3.3 Level Measurement Press return to main menu, press the select Level shortcut Figure3-3-1.Then press Figure3-3-1 If there is no valid channel to test, the screen will display as figure 3-3-2. Now, if you want to do any...
  • Page 27 DS2400Q QAM Analyzer Operation Manual 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. Then press into channel information as figure 3-3-4. Figure 3-3-3...

  • Page 28: Analogue Channel Measurement

    DS2400Q QAM Analyzer Operation Manual Figure 3-3-4 Press to select the 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. 3.3.1 Analogue channel measurement...
  • Page 29 DS2400Q QAM Analyzer Operation Manual : Video Level : Audio Level Figure3-3-5 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.
  • Page 30 DS2400Q QAM Analyzer Operation Manual Figure 3-3-6 ONE CHN/ADJ CHN ( ): The user can switch from both of two display mode (One channel and three channels): One channel mode: The histogram show the video and audio of current channel only.
  • Page 31 DS2400Q QAM Analyzer Operation Manual Figure 3-3-7 ): Press this button to next page as figure 3-3-8, the user can press this button again to return. Figure 3-3-8 DEVISER DS2400Q...
  • Page 32 DS2400Q QAM Analyzer Operation Manual is used for switch channels circularly. If the next channel is digital channel, the screen will be changed. (Refer to next section.) SAVE( ): Press this button to save the result of level test ,refer to 3.13.2.

  • Page 33: Digital Channel Measurement

    DS2400Q QAM Analyzer Operation Manual 3.3.2 Digital channel measurement In this function DS2400Q 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 this digital channel, as figure 3-3-11.
  • Page 34 DS2400Q QAM Analyzer Operation Manual Figure 3-3-11 ONE CHN/ADJ CHN ( ): The user can switch from both of two display mode (One channel and Three channels): One channel mode: The histogram shows the video and audio of current channel only.
  • Page 35 DS2400Q QAM Analyzer 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 DEVISER DS2400Q...
  • Page 36 DS2400Q QAM Analyzer 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. SAVE( ): Press this button to save the result of level test ,refer to 3.13.2.

  • Page 37: Limit Display

    DS2400Q QAM Analyzer Operation Manual Figure 3-3-14 RENEW: Press this button can test again. 3.3.3 Limit Display A PASS or 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...

  • Page 38: Constellation Diagram

    DS2400Q QAM Analyzer Operation Manual 3.4 Constellation Diagram Press to return to main menu interface, and press choose constellation icon, and then press to enter constellation measurement. DS2400Q’s constellation diagram function supports modes of QAM. Here, you can get channel POWER, MER, BER (pre-BER and...
  • Page 39 DS2400Q QAM Analyzer Operation Manual Soft Keys Operation: CH INFO ( ): Press this button to display the current channel information, and user can modify all of the parameters in this menu. FREQ ( ): Press this button to display the...
  • Page 40 DS2400Q QAM Analyzer Operation Manual Figure3-4-3 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...
  • Page 41 DS2400Q QAM Analyzer Operation Manual Figure3-4-4 are used for switching digital channels circularly. Note: This function only supports digital channels, if the current user plan doesn’t have any digital channels, the screen will show as figure 3-4-5. DEVISER DS2400Q...
  • Page 42 DS2400Q QAM Analyzer Operation Manual Figure 3-4-5 DEVISER DS2400Q...

  • Page 43: Ber Statistics Measurement

    DS2400Q 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 44: Parameter Description

    DS2400Q QAM Analyzer Operation Manual 3.5.1 Parameter Description abbreviations meaning Error seconds During 1s, there are one or more mistakes which 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 45: Soft Keys Operations

    DS2400Q QAM Analyzer Operation Manual 3.5.2 Soft Keys Operations CH INFO ( Press this button can check the current channel information, and user can modify all of the parameters in this menu. TIME ( ): Press this button to set the statistics...

  • Page 46: Tilt/Level List Measurement

    3.6 Tilt/Level List Measurement Tilt/Level list test is the effective solution to check the flatness and splitter’s gain of cable system, DS2400Q can get levels of 12 channels and observe the measurement result and graph easily. Press to return to main menu interface, and...
  • Page 47 DS2400Q QAM Analyzer Operation Manual In Figure 3-6-1, press to enter the tilt channels setup menu, select the channels that you want to do tilt test as Figure 3-6-3; press to change the highlight line, and then press the to select or unselect the...

  • Page 48: Tilt Mode

    DS2400Q QAM Analyzer Operation Manual Figure3-6-2 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. 3.6.1 Tilt 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 3-6-3.
  • Page 49 DS2400Q QAM Analyzer Operation Manual Figure 3-6-3 3.6.1.1 Soft Keys Operation LIST ( ): Press LIST soft key to enter level list mode, as Figure 3-6-4. Figure 3-6-4 DEVISER DS2400Q...

  • Page 50: Level List Mode

    DS2400Q QAM Analyzer Operation Manual SAVE ( ):Press SAVE soft key and enter into Figure 3-13-2 to save the result of tilt test ,refer to 3.13.2. SETUP ( ): When testing, press SETUP soft key and enter into Figure 3-6-2 to re-select tested channels.
  • Page 51 DS2400Q QAM Analyzer Operation Manual SETUP ( ): When testing, press SETUP soft key and enter into Figure 3-6-2 to re-select tested channels. Here, the button is defined to switch the tilt channel which’s test result will be displayed at the bottom of screen.

  • Page 52: Channel Scanning

    DS2400Q QAM Analyzer Operation Manual 3.7 Channel Scanning DS2400Q 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...

  • Page 53: Soft Keys Operation

    DS2400Q QAM Analyzer Operation Manual Green color represents video level of analogue channels. 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.
  • Page 54 DS2400Q QAM Analyzer Operation Manual REFERENCE LEVEL: Press TAB to select the REF, and then it can be modified by press , the range of reference level: 0-120 dBuV . VIEW: Press TAB to select the VIEW and switch between ×1, ×2, ×3, ×4 and ×5 by pressing ×1: Max display 30 channels in the screen.
  • Page 55 DS2400Q QAM Analyzer Operation Manual automatically adjust them to most optimal state. ):Press this button to next page as figure 3-7-2, the user can press this button again to return. Figure 3-7-2 SAVE ( ):Press SAVE soft key and enter into Figure 3-13-2 to save the result of tilt test ,refer to 3.13.2.

  • Page 56: Spectrum Scanning

    DS2400Q QAM Analyzer Operation Manual 3.8 Spectrum Scanning Press to return to main menu interface and press to select the spectrum icon, and then press to enter spectrum function. DS2400Q’s spectrum function supports double-marker display and peak-hold function as Figure 3-8-1. Here, you can set up span, frequency, sampling mode and etc….

  • Page 57: Soft Keys Operation

    DS2400Q QAM Analyzer Operation Manual 3.8.1 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 58: Parameter Setting

    DS2400Q QAM Analyzer Operation Manual SAVE ( ):Press SAVE soft key and enter into Figure 3-13-2 to save the result of tilt test ,refer to 3.13.2. STOP ( ): Pressing STOP soft key, the scanning will be stopped, and you can continue the scanning by press it again.
  • Page 59 DS2400Q QAM Analyzer Operation Manual REFERENCE LEVEL: After selecting the REF parameter, show as figure 3-8-3, press to adjust the reference level. Note: The character/digit keys input is not support. TRC: After selecting the TRC parameter, press to select the sampling mode (AVG...
  • Page 60 DS2400Q QAM Analyzer Operation Manual channels. Show as figure 3-8-4. Figure 3-8-4 SCALE: After selecting the SCALE parameter, press to choose one scale from 1dB/, 2dB/, 5dB/ and 10dB/. CENTER FREQUENCY: After selecting the CENT parameter, you can input the center frequency by the character/digit keys.
  • Page 61 DS2400Q QAM Analyzer Operation Manual SPAN: After selecting the SPAN parameter, press to adjust the span among 2.5MHz, 6.25MHz, 12.5MHz, 25MHz, 62.5MHz 1047MHz. MAX: After selecting the MAX-HOLD parameter, if you select the MAX-HOLD by pressing , the screen will display both the max value and the real-time value of each point.

  • Page 62: Hum Measurement

    DS2400Q QAM Analyzer Operation Manual 3.9 HUM Measurement DS2400Q support measurement 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...

  • Page 63: Soft Keys Operation

    DS2400Q QAM Analyzer Operation Manual 3.9.1 Soft Keys Operation 50Hz/60Hz( ):After pressing 50Hz or 60Hz soft key, the DS2400Q will select the frequency of system power as figure 3-9-2. Figure 3-9-2 are used to switch analogue channels circularly. Also you can input the channel number using the character/digit keys.

  • Page 64: Limit Measurement

    LIMIT icon, and then press to enter LIMIT function. As shown in figure 3-10-1, DS2400Q 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

    DS2400Q QAM Analyzer Operation Manual NOTE: DS2400Q checks the analog channel only in Limit Test mode 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, maximum delta video level, minimum △...
  • Page 66 DS2400Q QAM Analyzer 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 DEVISER DS2400Q...
  • Page 67 DS2400Q QAM Analyzer 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 and enter into Figure 3-13-2 to save the result of tilt test ,refer to 3.13.2.

  • Page 68: Limit Edit

    DS2400Q QAM Analyzer Operation Manual 3.10.2 Limit Edit You can edit the limit setup in SETUP. First enter into SETUP menu, press into MEASUREMENT Setting, highlight LIMIT SETUP , the screen displays as figure 3-10-6. Figure 3-10-6 If you want to change a parameter ,press select the parameter, press change.
  • Page 69 DS2400Q QAM Analyzer 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: Auto Test

    DS2400Q QAM Analyzer Operation Manual 3.12 Auto Test Press key to the main menu, press to select the AUTO icon and then press to enter. The screen displays as Figure 3-12-1. User can store all test items in one testing project and when you start this project , the appointed items will be test in sequence and store in one file.

  • Page 71: Create New Project

    DS2400Q QAM Analyzer Operation Manual 3.12.1 Create New Project Highlight blank space by , and then press button, DS2400Q will guide you to build a new project step by step. Step 1：Create Project Name Press to create a new project as Figure 3-12-2.
  • Page 72 DS2400Q QAM Analyzer Operation Manual enable it by pressing . The green indicates the item has been enabled after set , press DOWN to next step or UP to return without save. The screen displays as figure 3-12-3. Figure 3-12-3 Step 3：Edit test items...
  • Page 73 DS2400Q QAM Analyzer Operation Manual Figure 3-12-4 When edit LEVEL test parameter, move the cursor by and disable or enable the measured channels by pressing .The channel marked by "√" will be tested in LEVEL item of auto test procedure.
  • Page 74 DS2400Q QAM Analyzer Operation Manual Figure 3-12-5 When edit tilt test parameter, move the cursor by and disable or enable the measured channels by pressing . The channel marked by "√" will be tested in TILT item of auto test procedure. Be...
  • Page 75 DS2400Q QAM Analyzer Operation Manual Figure 3-12-6 When you edit SPECT parameter, you are able to edit center frequency/span as figure 3-12-7. Figure 3-12-7 DEVISER DS2400Q...
  • Page 76 DS2400Q QAM Analyzer Operation Manual When edit HUM test parameter, move the cursor by and disable or enable the measured channels by pressing . The analog channel marked by "√" will be tested in HUM item of auto test procedure.

  • Page 77: Auto Test Storage

    DS2400Q QAM Analyzer Operation Manual Figure 3-12-9 Step 4：Auto Start After editing limit test parameter, press button and return to previous menu, Press to start the auto test. 3. 12.2 Auto Test Storage After the auto test ,the file name will be auto marked with a “*”...
  • Page 78 DS2400Q QAM Analyzer Operation Manual Figure 3-12-10 DEVISER DS2400Q...

  • Page 79: File Management

    FILE icon, and then press to enter FILE management function as Figure 3-13-1. DS2400Q has independent memory space to store the measurement data. The measurement data of level test (analogue channels), QAM test (digital channels), channel scan, tilt, frequency spectrum measurement and HUM can be stored into files.

  • Page 80: Save File

    , the file list menu will display as figure3-13-2. will be enabled as “ NEW ”, press this button, a “SAVE THE FILE” dialog show as figure 3-13-3, DS2400Q will give a default name for new file, also you can rename it using the character/digit keys. DEVISER...
  • Page 81 DS2400Q QAM Analyzer Operation Manual 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 3-13-4. Figure 3-13-2 Figure 3-13-3...
  • Page 82 DS2400Q QAM Analyzer Operation Manual Figure 3-13-4 Press to modify the cursor location, and then press to select or unselect the data item as figure 3-13-5, press to save the file. When the new file was saved, the file list menu display as figure 3-13-6.

  • Page 83: Read File

    DS2400Q QAM Analyzer Operation Manual Figure 3-13-6 3.13.3 Read File Press to select the file you would like to read, and then press to Load the file. ”LOAD THE FILE ” dialog will display as figure 3-13-7. Figure 3-13-7 DEVISER...
  • Page 84 DS2400Q QAM Analyzer Operation Manual 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 3-13-8, 3-13-9, 3-13-10, 3-13-11, 3-13-12, 3-13-13, 3-13-14.
  • Page 85 DS2400Q QAM Analyzer Operation Manual Figure 3-13-10 Figure 3-13-11 DEVISER DS2400Q...
  • Page 86 DS2400Q QAM Analyzer Operation Manual Figure 3-13-12 Figure 3-13-13 DEVISER DS2400Q...

  • Page 87: Delete File

    DS2400Q QAM Analyzer Operation Manual Figure 3-13-14 3.13.4 Delete File Select one file by press and press DELETE( ) to delete this selected file, the “DELETE FILE” dialog will display as figure 3-13-15. Figure 3-13-15 DEVISER DS2400Q...
  • Page 88 DS2400Q QAM Analyzer Operation Manual Press (ENTER) in figure 3-13-15, the file will be deleted as figure 3-13-16. Figure 3-13-16 DEVISER DS2400Q...

  • Page 89: Setup

    DS2400Q QAM Analyzer Operation Manual 4. Setup 4.1 Brief Introduction Press to return to main interface and press to select the SETUP icon, and then press to enter SETUP menu as Figure 4-1-1. Figure 4-1-1 *INFORMATION: General information of the DS2400Q, includes manufacturer information, version and so on.
  • Page 90 DS2400Q QAM Analyzer Operation Manual * GENERAL: The setup includes auto shutdown time setting, language selection , date and time setting , files status and system upgrade(NOT INSTALL) . * MEASUREMENT: Level unit, Level Calibrate, Limit setup Voltage & temperature measurement.

  • Page 91: Information

    DS2400Q QAM Analyzer 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 and so on. Figure 4-2-1 DEVISER DS2400Q...

  • Page 92: General

    DS2400Q QAM Analyzer Operation Manual 4.3 GENERAL 4.3.1 Shutdown Time and Lcd To save the power, the instrument can be set to shutdown automatically for inactive keypad after 3 minutes, 5 minutes, 10 minutes ,30 minutes and ON(never shutdown mode ), as Figure 4-3-1.

  • Page 93: Language Selection

    DS2400Q QAM Analyzer Operation Manual 4.3.2 Language Selection The language of DS2400Q can switch among English and Chinese as figure 4-3-2. After choose, instrument will transform menu automatically. Figure 4-3-2 Note：Contact Deviser for more languages. DEVISER DS2400Q...

  • Page 94: Date And Time

    DS2400Q QAM Analyzer Operation Manual 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 DEVISER DS2400Q...

  • Page 95: Files Status

    DS2400Q QAM Analyzer 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 4.3.5 System upgrade This function is not installed. DEVISER DS2400Q...

  • Page 96: Measurement Parameter Setup

    DS2400Q QAM Analyzer 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 DEVISER DS2400Q...

  • Page 97: Limit Setup

    DS2400Q QAM Analyzer 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 adjust it and press ENTER( ) to enable the input data.
  • Page 98 DS2400Q QAM Analyzer Operation Manual Figure 4-4-4 Figure 4-4-5 Three pages of Limit setting have been provided as Figure 4-4-3, Figure 4-4-4, Figure 4-4-5, Six Limit items included in page one(1/3) , which is used for single analogue channel test. The default value of these Limit items are list as Table 4-4-1.The range of these Limit items are list as...
  • Page 99 DS2400Q QAM Analyzer Operation Manual Table 4-4-2.The difference between MAX VIDEO and MIN VIDEO must be larger than six dB. Item Limit 60dBμV Minimum Video level Maximum Video level 100dBμV Minimum △ V/A 10dB Maximum △ V/A 20dB Maximum VID...
  • Page 100 DS2400Q QAM Analyzer Operation Manual Page two(2/3) is used for digital channels 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 range of these Limit items are list as Table 4-4-4.
  • Page 101 DS2400Q QAM Analyzer Operation Manual Item Limit Minimum Power level 25~89dBμV Maximum Power level 26~110dBμV Minimum MER 20~40dB Maximum PRE-BER 1.0E-3~1.0E-9 Maximum POST-BER 1.0E-3~1.0E-9 Table 4-4-4 Page three(3/3) is used for tilt measurement, two limit items list including of MIN TILT and MAX TILT.
  • Page 102 DS2400Q QAM Analyzer Operation Manual To set the test limit, you can choose limit item by press TAB( ), and then press adjust it. If you want to load default values of all limit items on each page, please press the...

  • Page 103: Auto Diagnosis

    DS2400Q QAM Analyzer Operation Manual 4.4.4 Auto Diagnosis You can enable the auto diagnosis function(PASS and FAILURE) as figure 4-4-6. Figure 4-4-6 NOTE: Before the auto diagnosis function can be work correctly, the Limit items in section 4.4.3 must be set the valid values.
  • Page 104 DS2400Q QAM Analyzer Operation Manual 4.4.5.1 Battery Voltage As Figure 4-4-7, battery voltage will be displayed on the screen. When it is lower than 10.6V, this meter will remind that it will shut down automatically soon. Figure 4-4-7 4.4.5.2 Trunk Voltage(AC LINE)
  • Page 105 DS2400Q QAM Analyzer Operation Manual Figure 4-4-8 4.4.5.3 Temperature Inside DS2400Q can monitor inside temperature itself, and you can press to choose the display unit: Celsius or Fahrenheit, refer to Figure 4-4-9 and Figure 4-4-10. Figure4-4-9 DEVISER DS2400Q...
  • Page 106 DS2400Q QAM Analyzer Operation Manual Figure4-4-10 DEVISER DS2400Q...

  • Page 107: 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: DS2400Q has five default user plans. DEVISER DS2400Q...

  • Page 108: Channel Number Type

    DS2400Q QAM Analyzer 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 desired measurement mode. Refer to Figure 4-5-2.

  • Page 109: Edit User Plan

    DS2400Q QAM Analyzer Operation Manual NOTE: The LEARN USER PLAN option 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 110 DS2400Q QAM Analyzer 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 to edit status as Figure 4-5-4.
  • Page 111 DS2400Q QAM Analyzer Operation Manual Figure 4-5-4 NOTE：Any edit here will be saved when you exit the screen. DEVISER DS2400Q...

  • Page 112: Power Supply

    DS2400Q QAM Analyzer Operation Manual 5. Power Supply 5.1 Battery DS2400Q 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...
  • Page 113 5.2 Charging Please charge the instrument as following charging process: 1. Insert the charger output plug to DS2400Q’ DC charge socket. 2. Connect the charger to AC 100V-240V Power and the charger indicator will light with red.
  • Page 114 DS2400Q QAM Analyzer Operation Manual NOTE: The instrument can not be charged in the temperature beyond 10℃~35℃, otherwise the battery life will be shorten. DEVISER DS2400Q...
  • Page 115 DS2400Q QAM Analyzer 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 116 DS2400Q QAM Analyzer Operation Manual 7. Specification Frequency： Range: 5MHz to 1000MHz Accuracy: ± 50×10 (20℃± 5℃) Resolution: 10 KHz Receive 280 KHz Channel Type: bandwidth: Analogue TV: Digital TV: QPSK,COFDM ,16/32/64/128/ 256 QAM Analog Level Measurement: Range: 30dBV to 120dBV Accuracy: ±...
  • Page 117 DS2400Q QAM Analyzer Operation Manual support： QPSK,COFDM ,16/32/64/128/ 256 QAM 1MS/S-7MS/S bandwidth： Enactment ～ MER: 39dB（representative） ± 2dB Accuracy： BER: 1E-3 to 1E-9 Before and After R-S Decoding Power QAM QPSK COFDM measure type: Average Power Level range: 30dBV to 110dBV Accuracy：...
  • Page 118 DS2400Q QAM Analyzer Operation Manual Zoom: 1X, 2X, 3X, 4X, 5X five levels of magnification Frequency spectrum： Bandwidth: 2.5MHz, 6.25MHz, 12.5MHz, 25MHz, 62.5MHz, fullband Scale: 1, 2, 5, 10 dB/ div Tilt measurement: Number of 4 to 12 channels: Resolution: 0.1dB...
  • Page 119 DS2400Q QAM Analyzer Operation Manual Store -20℃～50℃ Temperature: Dimensions: Handset about 218mm×95mm×49mm Weight: Handset about 700g Display: 320×240 OLED Power supply Battery: 11.1V 1.6AH Lithium battery Charger: AC 100 V to 240V 50-60Hz Work time: 5 hours (full charged battery)
  • Page 120 DS2400Q QAM Analyzer Operation Manual 8. Standard Accessories Quantit Standard Accessories DS2400Q AC-DC power adapter/charger Data cable(Serial to USB) Carrying bag F connect Manual and Toolbox software DEVISER DS2400Q...
  • Page 121 DS2400Q QAM Analyzer Operation Manual Add: NO.40 YiBin Road, Nankai District, Tianjin 300113, China Tel: +86-22-27645003-803 Fax: +86-22-27645002 Http:// www.devisertek.com E-Mail: overseasbiz@deviser.com.cn DEVISER DS2400Q...

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