Deviser DS2460Q Operation Manual
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Deviser DS2460Q Operation Manual

Qam analysis meter
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Operation Manual
DS2460Q QAM Analysis Meter
Ver：1.02

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Summary of Contents for Deviser DS2460Q

  • Page 1 Operation Manual DS2460Q QAM Analysis Meter Ver：1.02...
  • Page 3 Deviser Instruments Inc shall not be liable for errors contained herein or for incidental or consequential damage in connection with the furnishing, performance, or use of this material.
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  • Page 4 Deviser Instruments equipment. Failure to comply with these and other specific warnings and cautions is a violation of Deviser Instruments Inc’ safety standards of design, manufacturing, and intended use of the measurement device. Deviser Instruments Inc assumes no liability for the operator’s failure to comply with these precautions.
  • Page 5 Electric Shock Hazard
Danger! To avoid the possibility of severe injury or death, observe the following precautions when using any Deviser Instruments equipment: Do not remove the system covers, and do not perform electrical tests if there are signs of shipping damage to the outer enclosure.
  • Page 6 Frame or chassis ground. Alternating current Direct current Alternating or direct current Caution! Read the manual. This Deviser Instruments Inc product is warranted against defects in material and workmanship for a period of 24 months from date of shipment. During the...
  • Page 7 Deviser Instruments Inc. The buyer shall prepay shipping charges to Deviser Instruments Inc or to the service center and Deviser Instruments Inc or the service center shall pay the shipping charges to return the product to .
  • Page 8 Deviser Instruments Inc does not warrant that the operation of the instrument, or software, or firmware will be uninterrupted or error-free but strives to insure the best operating condition as per specifications and datasheets.
  • Page 9 NO OTHER WARRANTY IS EXPRESSED OR IMPLIED. DEVISER INSTRUMENTS INC SPECIFICALLY DISCLAIMS THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. © Tianjin Deviser Electronics Instrument Co., Ltd. Deviser Part No.: 2460Q All rights reserved. Printed in CHINA. August. 2017.

  • Page 10: Table Of Contents

    Catalog Maintenance and Safety Considerations ....1 Calibrating the Meter ........1 About Battery, Adapter and Firmware upgrade ............3 General Introduction ..........6 Channel Measurement ........8 Constellation Diagram ........8 BER Statistics ..........9 Tilt/Level List ..........9 Channel Scanning ..........
  • Page 11 2.13 Intelligent Power Management ....12 Introduction ............13 Appearance ..........13 Keypad ............16 3.2.1 Soft keys ..........17 3.2.2 Shortcut keys ........17 3.2.3 Alphabet/Number Input ...... 18 Display Description ........19 Using the Instrument ..........20 Function Menu Display ........ 20 Learn User Channel Plan......
  • Page 12 4.6.1 Parameter Description ......51 4.6.2 Soft Keys Operations ......52 Tilt/Level List Measurement ......53 4.7.1 Tilt Mode ..........55 4.7.2 Level List Mode ........57 Channel Scanning ........59 4.8.1 Buttons Operation ....... 61 Mini SCAN ............ 63 4.10 Return Path Spectrum .........
  • Page 13 4.21 File Management ......... 97 4.21.1 File Directory ........98 4.21.2 Save File ..........99 4.21.3 Read File ..........101 4.21.4 Delete File ......... 105 Setup ..............107 Brief Introduction ........107 Information ..........109 General ............110 5.3.1 Meter Shutdown Time ...... 110 5.3.2 Language Selection ......
  • Page 14 5.4.4 Limit Setup ........122 5.4.5 Auto Diagnosis ........129 5.4.6 Measure Mode(Option) ....130 5.4.7 Voltage and temperature ....132 Channel Plan ..........134 5.5.1 Select User Plan ......... 134 5.5.2 Learn User Plan ......... 137 5.5.3 Edit User Plan ........139 5.5.4 Load Default ........

  • Page 15: Maintenance And Safety Considerations

    DS2460Q QAM Analysis Meter Operation Manual Maintenance and Safety Considerations Calibrating the Meter instruments have analog circuitry: preamplifiers, filter, etc.-whose performance can change over time. A regular schedule of calibrations will keep your instrument in optimal condition to support design, troubleshooting, manufacturing work.
  • Page 16 DS2460Q QAM Analysis Meter Operation Manual test should be performed under laboratory condition whereby the ambient temperature or relative humidity can be controlled. Warm up: Allow up to at least 5 minutes warm-up before performing calibration to the meter. After...

  • Page 17: About Battery, Adapter And Firmware Upgrade

    DS2460Q QAM Analysis Meter Operation Manual About Battery, Adapter and Firmware upgrade Please charge-discharge the battery in every 3 months to extend battery life! Warning ： Danger of explosion if the battery is incorrectly replaced. Replace only with the same type battery recommended.
  • Page 18 DS2460Q QAM Analysis Meter Operation Manual power output connector for IT equipment, when charging the battery on your automotive. CAUTION: Temperature extremes will affect the ability of the battery to charge. Allow the battery to cool down or warm up as necessary before use or charging.
  • Page 19 DS2460Q QAM Analysis Meter Operation Manual battery is charging. When the battery is fully charged, the green charging indicator turns off. The charging time for a fully depleted battery, is approximately four hours. If the meter is power on, the charging time is longer.

  • Page 20: General Introduction

    DS2460Q QAM Analysis Meter Operation Manual General Introduction DS2460Q 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 Power,...
  • Page 21 DS2460Q QAM Analysis Meter Operation Manual Features: * QAM Test * Level Test * Channel Scanning * Spectrum Analysis * Tilt *HUM * Voltage Measurement * Multiple User Channel Plan Setup * File Management * Intelligent Power Management * Character / Numeral Input...

  • Page 22: Channel Measurement

    DS2460Q QAM Analysis Meter Operation Manual Channel Measurement DS2460Q supports accurate signal level test in analog TV, QAM and single frequency modes. level and △V/A etc. For Analog channels, you can get video level, audio For Digital channels, you can get Channel Power, MER and BER.

  • Page 23: Ber Statistics

    DS2460Q support 12 channels tilt max. Channel Scanning DS2460Q supports video and audio level display of all channels, which could up to 160 channels most. Also its zoom in/out of 5 levels and marker function make your observation easier.

  • Page 24: Hum Measurement

    Limit Measurement DS2460Q 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 25: Return Path

    Also they can be switched easily. So it is very suitable for multi-network maintenance. 2.12 File Management DS2460Q can store the results of channel level test, QAM test, tilt test, channel scanning, spectrum...

  • Page 26: Intelligent Power Management

    PC. 2.13 Intelligent Power Management DS2460Q with full charged is able to work over5 hours. The power supply monitoring system will monitor the status of power and ensure the instrument in power saving mode.

  • Page 27: Introduction

    DS2460Q QAM Analysis Meter Operation Manual Introduction Appearance Get acquainted with the appearance before use： Optical Power Meter Visual Fault Locator RF Input Port...
  • Page 28 DS2460Q QAM Analysis Meter Operation Manual Rubber Out Casing for Enhanced Durability 2.8” 320x240 TFT LCD Multi- Function Enter Button Home and ESC/Cancel Alpha-Numeric Keyboard Power On/Off Second Function Key and Indicator Charging Indicator...
  • Page 29 DS2460Q QAM Analysis Meter Operation Manual Adapter Micro USB...

  • Page 30: Keypad

    DS2460Q QAM Analysis Meter Operation Manual Keypad...

  • Page 31: Soft Keys

    DS2460Q QAM Analysis Meter Operation Manual 3.2.1 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. 3.2.2 Shortcut keys There are nine keys bellow the three soft keys...

  • Page 32: Alphabet/Number Input

    DS2460Q QAM Analysis Meter Operation Manual used to input the alphabets, numbers and symbols. Open the FCN function, In FCN mode is used to input the letters, numbers and symbols. 3.2.3 Alphabet/Number Input If you want to input alphabet/number, first step press...

  • Page 33: Display Description

    DS2460Q QAM Analysis Meter Operation Manual Display Description Test Point Compensation Channel Plan Clock Status Battery Frequency or Channel Power or Level Major Area MER and...

  • Page 34: Using The Instrument

    DS2460Q QAM Analysis Meter Operation Manual Using the Instrument Function Menu Display Figure 4-1 Figure 4-2...
  • Page 35 DS2460Q QAM Analysis Meter Operation Manual Figure 4-3 The Figure 4-1, Figure 4-2 and Figure 4-3 Display the Main Menu which include all of the function icons, Soft Keys: Open the page 1 Open the page 2 Open the page 3...

  • Page 36: Learn User Channel Plan

    Learn User Channel Plan In order to enhance your work efficiency, please create user channel plan before measurement. DS2460Q will choose all effective channels in the cable system automatically and save in this channel plan. The User Channel Plan includes four elements as...
  • Page 37 DS2460Q QAM Analysis Meter Operation Manual Figure 4-4 Then press the select the CHANNEL PLAN item, as Figure 4-5 show. Figure 4-5 DS2460Q has 20 blank channel plans. If you first time use this meter, you must choose one blank channel...
  • Page 38 DS2460Q QAM Analysis Meter Operation Manual plan before you start create new channel plan. If you uses this meter a period of time, you want to create a new channel plan for different zone network, you need choose another blank channel plan from the 20 default channel plans.
  • Page 39 DS2460Q QAM Analysis Meter Operation Manual Figure 4-6 Figure 4-7 In this screen, you can press RENAME soft button, then press the , as the Figure 4-8 show.
  • Page 40 DS2460Q QAM Analysis Meter Operation Manual Figure 4-8 Press save the new name and quit rename operation, is backspace, to correct you input contents, press , don’t save and quit. After you quit, continue press (SELECT) to set the current cursor position channel plan as the default channel plan, the symbol “√”...
  • Page 41 DS2460Q QAM Analysis Meter Operation Manual (STANDARD/DIGITAL) can switch channel name. Figure 4-9 Figure 4-10 After select one blank channel plan, we should start learn user plan.
  • Page 42 DS2460Q QAM Analysis Meter Operation Manual 3. Press button to choose the channel plan standard. DS2460Q has four default standard: PAL_D/K, NCTA, OIRT, CCIR. Press button to switch editable channel parameters position. Use GHIA button to change parameters’ value. For SR (Symbol...
  • Page 43 DS2460Q QAM Analysis Meter Operation Manual automatic saved in the memory. Figure 4-11 Figure 4-12...
  • Page 44 DS2460Q QAM Analysis Meter Operation Manual Figure 4-13 NOTE: The analog channels with level higher than -15dBmV and digital channel with power level higher than -28dBmV will be enabled in standard channel plan. Only the enabled channels will displayed each measurement interface.
  • Page 45 DS2460Q QAM Analysis Meter Operation Manual After you complete channel plan learning, back to previous screen, move the cursor on the item EDIT USER PLAN, press button, you can open channel list screen. The information as Figure 4-14 and Figure 4-15 show.
  • Page 46 DS2460Q QAM Analysis Meter Operation Manual Move the cursor on analog TV channel, press the , the analog channel detailed information will be displayed, as Figure 4-16 show. Move the cursor on digital TV channel, press the button, the digital channel detailed information will be displayed, as Figure 4-17 show.
  • Page 47 DS2460Q QAM Analysis Meter Operation Manual Figure 4-17 Figure 4-18...

  • Page 48: Level Measurement

    DS2460Q QAM Analysis Meter Operation Manual Level Measurement Press return to main menu, press the arrow key to select the Level icon as Figure 4-19. Then press Figure 4-19 The program confirm at least one active channel exist in one channel plan. So you channel plan at least has only one analog channel.
  • Page 49 DS2460Q QAM Analysis Meter Operation Manual Press select channel parameters, if the selected parameter could be changed, press (MODIFY) or to change. As the Figure 4-21 show, ensuring the STATUS is enable, the channel will be enabled. Figure 4-20 Figure 4-21...

  • Page 50: Analog Channel Measurement

    DS2460Q QAM Analysis Meter Operation Manual 4.3.1 Analog channel measurement If the current channel is a valid analog channel, The Level function will display as the Figure 4-22 show, three test results are displayed on the screen, include Video, audio and V/A.
  • Page 51 DS2460Q QAM Analysis Meter Operation Manual Figure 4-23 The buttons are used for switch channels circularly. If the next channel is digital channel, the screen will be changed. (Refer to next section.) FREQ( ): Press this button to show single...
  • Page 52 DS2460Q QAM Analysis Meter Operation Manual Figure 4-24...

  • Page 53: Digital Channel Measurement

    DS2460Q QAM Analysis Meter Operation Manual 4.3.2 Digital channel measurement In this function DS2460Q is able to measure POWER, MER and BER. As the Figure 4-25 show. Figure 4-25 CH INFO( ): Press this button will display the channel information of this digital channel, as the Figure 4-26 show.
  • Page 54 DS2460Q QAM Analysis Meter Operation Manual Figure 4-26 are used for switching channels circularly. If the next channel is analog channel, the screen will be as the Figure 4-22 show. SAVE( ): Press this button to save the result of level test ,refer to Figure 4-79.

  • Page 55: Limit Display

    DS2460Q QAM Analysis Meter Operation Manual Figure 4-27 4.3.3 Limit Display A PASS or FAIL in big font is displayed in the screen to indicate the quality of current channel as the Figure 4-25, the limit value to judge the quality of channel can be showed in the measurement setup menu, and also can be modified.

  • Page 56: Constellation Diagram

    DS2460Q QAM Analysis Meter Operation Manual Constellation Diagram Press to return to main menu interface, and press the arrow keys to choose constellation icon, and then press to enter constellation measurement. DS2460Q’s constellation diagram function supports modes of QAM. Here, you can get channel POWER,...
  • Page 57 DS2460Q QAM Analysis Meter 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, as the Figure 4-29 show. Figure 4-29 FREQ (...
  • Page 58 DS2460Q QAM Analysis Meter Operation Manual Now the DS2460Q support the channel parameters automatic identify. If user want to use this function, must open operation steps: Setup->Measurement->Auto Diagnosis->Auto ID. User must choose “AUTO ID” option. If the channel center frequency setup right, the program can automatic identify the QAM parameter.
  • Page 59 DS2460Q QAM Analysis Meter Operation Manual modulation type and symbol rate display the red asterisk, as the Figure 4-31 show. If user press the button SAVE( ), the new parameters will be saved in channel plan ,the asterisk will disappear.
  • Page 60 DS2460Q QAM Analysis Meter Operation Manual ZOOM OUT/ZOOM IN ( ):Press this button and switch the status of constellation diagram between zoom in and normal mode. Press zoom in key again, the selected quadrant will be zoom in, and the zoom in flag will be displayed on the top of the screen as Figure 4-33.
  • Page 61 DS2460Q QAM Analysis Meter 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 4-34. Figure 4-34...

  • Page 62: 8Vsb Measurement(Option)

    DS2460Q QAM Analysis Meter Operation Manual 8VSB Measurement(Option) If you want to use DS2460Q demodulate ITU-T J.83D 8VSB signal, you must do these operation: SETUP->CHANNEL PLAN->EDIT USER PLAN-> (EDIT)->SIGNAL: DVB-C->STANDARD: J.83D. or LEVEL, QAM,BER screen, press the (CH INFO) to directly modify one channel parameters.
  • Page 63 DS2460Q QAM Analysis Meter Operation Manual Figure 4-36 Figure 4-37...

  • Page 64: Ber Statistics Measurement

    BER icon, and then press to enter BER statistics measurement. DS2460Q 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 4-38.

  • Page 65: Parameter Description

    DS2460Q QAM Analysis Meter Operation Manual 4.6.1 Parameter Description parameters 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’t be correct divided the...

  • Page 66: Soft Keys Operations

    TIME ( ):Press this button to set the statistics time, DS2460Q supports several fixed time(5 minutes, 15 minutes, 30 minutes, 60 minutes, 2 hours, 6 hours, 12 hours, 24 hours, and 48hours). START/STOP(...

  • Page 67: Tilt/Level List Measurement

    DS2460Q QAM Analysis Meter Operation Manual Tilt/Level List Measurement Tilt/Level list test is the effective solution to check the flatness and splitter’s gain of cable system, DS2460Q can get levels of 12 channels and observe the measurement result and graph easily.
  • Page 68 DS2460Q QAM Analysis Meter Operation Manual tilt test as Figure 4-41; press the button to change the highlight line, and then press to select or unselect the channel. Here, the button have been defined GHIA to page up and page down the channel list.

  • Page 69: Tilt Mode

    DS2460Q QAM Analysis Meter Operation Manual 4.7.1 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 4-42. Figure 4-42 Soft Keys Operation LIST( ): Press LIST soft key to enter level list mode, as Figure 4-43.
  • Page 70 DS2460Q QAM Analysis Meter Operation Manual Figure 4-43 SAVE ( ):Press key and enter into Figure 4-79to save the result of tilt test ,refer to4.21.2. SETUP( ):When testing, press SETUP soft key and enter into Figure 4-41to re-select tested channels.

  • Page 71: Level List Mode

    DS2460Q QAM Analysis Meter Operation Manual 4.7.2 Level List Mode Press to switch the modes between Tilt Graph and level list. In level list mode, you can easily get level value of the channels tested, as Figure 4-43. Soft Keys Operation...
  • Page 72 DS2460Q QAM Analysis Meter Operation Manual Measurement Setup（Refer to5.4.3）. And also we can disable the judge of quality of channel in the Measurement Setup.

  • Page 73: Channel Scanning

    DS2460Q QAM Analysis Meter Operation Manual Channel Scanning DS2460Q 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 arrow keys to select the SCAN icon, and...
  • Page 74 DS2460Q QAM Analysis Meter Operation Manual Green color represents video level of analog channels. Yellow color represents audio level of analog channels. Blue color represents power of digital channels. The scan function also display the channel number of scanning start channel and end channel.

  • Page 75: Buttons Operation

    DS2460Q QAM Analysis Meter Operation Manual 4.8.1 Buttons Operation MARK: In Figure 4-44, press the GHIA buttons, the marker with red color will move left or right. And the test result of channel at the position of marker will be displayed on the bottom of the screen.
  • Page 76 DS2460Q QAM Analysis Meter Operation Manual 5dB and 10dB. AUTO: In Figure 4-44, press (AUTO) soft key to adjust reference level and scale quickly .The meter will automatically adjust them to most optimal state. ):Press this button to next page as Figure 4-45, the user can press this button again to return.

  • Page 77: Mini Scan

    DS2460Q QAM Analysis Meter Operation Manual Mini SCAN DS2460Q support Mini SCAN function. The Mini max support 16 channels. In SCAN mode, the digital channel only give signal power, the meter doesn’t demodulate the QAM signal. In mini SCAN ,the QAM signal will be demodulated, user can read the signal power, MER and BER.
  • Page 78 DS2460Q QAM Analysis Meter Operation Manual Figure 4-47...

  • Page 79: Return Path Spectrum

    DS2460Q QAM Analysis Meter Operation Manual 4.10 Return Path Spectrum Press to return to main menu interface and press (PAGE1) to select the R-PATH icon, and then press to enter R-PATH function, as show in Figure 4-48. Figure 4-48 In the interface of the R-PATH function, the start and...
  • Page 80 DS2460Q QAM Analysis Meter Operation Manual User can use (TAB) or buttons to GHIA change cursor’s position. The max hold function is used to hold the spectrum trace peak value, as show in the Figure 4-49. User press (HOLD) can active the hold function, this function can temporary freeze the spectrum trace.

  • Page 81: Fast Spectrum

    F_SPEC function, as show in Figure 4-50. Figure 4-50 The DS2460Q has three type spectrum analysis modes: normal spectrum analysis, fast spectrum analysis and return path spectrum analysis. The fast spectrum analysis mode allow technician viewing...
  • Page 82 DS2460Q QAM Analysis Meter Operation Manual but it has better amplitude accurate. The F_SPEC function has several fixed span settings: 12.5MHz, 25MHz, 62.5MHz, Full Band. User press (MAX-HOLD) can active the peak value hold function. The max hold function is used to hold the spectrum trace peak value, as show in the Figure 4-50.

  • Page 83: Spectrum Scanning

    F_SPEC function, as show in Figure 4-51Figure 4-50. Figure 4-51 The DS2460Q has three type spectrum analysis modes: normal spectrum analysis, fast spectrum analysis and return path spectrum analysis. The fast spectrum analysis mode allow technician viewing...
  • Page 84 DS2460Q QAM Analysis Meter Operation Manual but it has better amplitude accurate. The SPECT function has several fixed span settings: 2.5MHz, 6.25MHz, 12.5MHz, 25MHz, 62.5MHz, Full Band. User press (MAX-HOLD) can active the peak value hold function. The max hold function is used to hold the spectrum trace peak value, as show in the Figure 4-51.

  • Page 85: Hum Measurement

    DS2460Q QAM Analysis Meter Operation Manual 4.13 HUM Measurement DS2460Q support HUM measurement to analog channel. Press to return to main menu interface and press (PAGE2)and use arrow buttons to select the HUM icon, and then press to enter HUM function. Show as Figure 4-52.

  • Page 86: Soft Keys Operation

    DS2460Q QAM Analysis Meter Operation Manual 4.13.1 Soft Keys Operation 50Hz/60Hz( ):After pressing 50Hzor 60Hz soft key, the DS2460Q will select the frequency of system power as Figure 4-53. Figure 4-53 The buttons are used to switch analog channels circularly. Also you can input the channel number using the character/digit keys (need use button).

  • Page 87: Limit Measurement

    LIMIT icon, and then press to enter LIMIT function. As show in the Figure 4-54, DS2460Q is able to detect cable TV system rapidly, and check out the number of unqualified channels and the reason of unqualified channels.
  • Page 88 DS2460Q QAM Analysis Meter Operation Manual When the program does the limit scan, press the (AUTO) button, program will automatic modify the reference level. After the limit test scanning, the general test results of cable system will be listed. The test items are maximum delta video level, minimum △V/A,...
  • Page 89 DS2460Q QAM Analysis Meter Operation Manual Figure 4-56 Press (LIST) again to view the test result LIST as Figure 4-57.Press (RETEST) can do limit test once again. Section 5.4.4 describe limit setup and edit detailed information. Figure 4-57...

  • Page 90: C/N Measurement

    DS2460Q QAM Analysis Meter Operation Manual 4.15 C/N Measurement Press to return to main menu interface and press (PAGE2) and use arrow buttons to select the C/N icon, and then press to enter C/N function. As show in Figure 4-58.
  • Page 91 DS2460Q QAM Analysis Meter Operation Manual system uses 5.75MHz noise bandwidth correction. Noise measurement bandwidth for different TV standard Standard B，G K1，L D，K M， N Video 6.75 5.75 7.25 6.75 4.95 bandwidth Noise 5.08 4.75 5.58 5.75 4.00 bandwidth Press...
  • Page 92 DS2460Q QAM Analysis Meter Operation Manual User also can press switch several often used noise correction bandwidth setting. (RENEW) button is used to update test result.

  • Page 93: Fiber Optical Connector Introduction

    DS2460Q QAM Analysis Meter Operation Manual 4.16 Fiber Optical Connector Introduction Fiber optical connector is the most commonly used passive optical fiber device. It connect two optical fibers’ end faces, realize optical signal continue transmission. You can find optical connector at many...
  • Page 94 DS2460Q QAM Analysis Meter Operation Manual • Straight physical contact (PC) Figure 4-60 The fiber ends are pressed together in the connector. There is no air gap left to cause reflections. The return loss is30 – 55 dB. This is the most common connector for single mode fibers(for example FC/PC, ST, SC/PC, DIN, HMS, E 2000 connectors).
  • Page 95 DS2460Q QAM Analysis Meter Operation Manual • Straight air gap Figure 4-62 Inside these connectors there is a small air gap between the two fiber ends. Their return loss is less than 14 dB and the reflection is fairly high.
  • Page 96 DS2460Q QAM Analysis Meter Operation Manual Figure 4-65 ST Fiber Optical Connector DS2460 use FC/SC/ST replaceable connector interface, user can replace different appropriate connector interface according to field application environment. Figure 4-66...

  • Page 97: Optical Power Meter(Option)

    DS2460Q QAM Analysis Meter Operation Manual 4.17 Optical Power Meter(Option) Press to return to main menu interface and press (PAGE2) and use arrow buttons to select the OPM icon, and then press to enter OPM function. As show in Figure 4-67.
  • Page 98 DS2460Q QAM Analysis Meter Operation Manual Figure 4-68 Operation steps: (1) Connect optical power meter signal input port and under test optical fiber; (2) Press to return to main menu interface and press (PAGE2) and use arrow buttons to select...
  • Page 99 DS2460Q QAM Analysis Meter Operation Manual Press the (OPSHIFT), the Figure 4-68 will display, if user long time use the optical power meter, the test device has a little drift, user can use this function do compensation the drift or offset operation.
  • Page 100 DS2460Q QAM Analysis Meter Operation Manual standard OPM. Example, standard measurement results -5dBm, your measurement results is -6dBm, it means your OPM has 1dBm offset for a long time using. You need do some compensation by yourself. Now you enter 1dBm in OFFSET position on one wavelength, press enter button, quite compensation menu.
  • Page 101 DS2460Q QAM Analysis Meter Operation Manual dBm and mW Conversion Table 30.0 1000 20.0 100mW 10.0 10mW -3.0 500μW -10.0 100μW -20.0 10μW 0.01 -30.0 1μW 0.001 -40.0 100nW 0.0001...

  • Page 102: Visual Fault Location (Option)

    DS2460Q QAM Analysis Meter Operation Manual 4.18 Visual Fault Location (Option) In practice, engineer often use one type red light source to local optical fiber breakpoint. This type red light source usually called visual fault locator. Press to return to main menu interface and...

  • Page 103: Tdr (Option)

    DS2460Q QAM Analysis Meter Operation Manual 4.19 TDR (Option) TDR, OPM and VFL three functions, user only can choose two functions. Because DS2460Q only has three ports, one for RF signal, and other two for options. Figure 4-71 TDR (Time Domain Reflectometer) can display cable...
  • Page 104 DS2460Q QAM Analysis Meter Operation Manual value. User need according to the local environment to estimate the measuring range. The second step is setup PLUSE (PULSE bandwidth). The shorter the test distance, the narrower the pulse width; the longer the cable / line distance tested, the wider the pulse width.
  • Page 105 DS2460Q QAM Analysis Meter Operation Manual Figure 4-72 Electrical pulses are transmitted into the cable, and a portion of the pulse energy will be reflected back to the instrument from cable discontinuities or faults. When the cable has Open Circuit fault, the reflection pulse is positive, as the Figure 4-73 show.
  • Page 106 DS2460Q QAM Analysis Meter Operation Manual While the cable has Short Circuit fault, the reflection pulse is negative, as the Figure 4-74 show. Transmit Pulse Reflection ∆t Figure 4-74 The waveform is upward also indicate the high impedance serial or the characteristic impedance of cable has significant change.
  • Page 107 DS2460Q QAM Analysis Meter Operation Manual 50m, 150m, 300m, 600m, 1200m, 2400m. TDR function has several pulse width options: 10ns, 30ns, 50ns, 100ns, 300ns, 500ns, 1000ns. The velocity of propagation range: 0.60 ~ 1.00.

  • Page 108: Ping Test

    Figure 4-75 If user want to start PING test, user must setup the DS2460Q network address. As show in the Figure 4-76. If you want to directly PING web site domain name, you must configure the DNS server IP address. If you don’t configure the DNS server IP address, you only...
  • Page 109 DS2460Q QAM Analysis Meter Operation Manual Figure 4-76 The PING function parameters introduction. HOST ADDRESS: Input the network address or the desired IP address to be tested in the host address box at the top (for example: www.google.com). PACKET COUNT: the number of data packets sent by the assigned PING order.
  • Page 110 DS2460Q QAM Analysis Meter Operation Manual in ms. Figure 4-77 Figure 4-78...

  • Page 111: File Management

    DS2460Q QAM Analysis Meter Operation Manual 4.21 File Management DS2460Qhas independent memory space to store the measurement data. The measurement data of level test(analog channels),QAM test(digital channels), channel scan, tilt, frequency spectrum measurement and HUM can be stored into files.

  • Page 112: File Directory

    DS2460Q QAM Analysis Meter Operation Manual 4.21.1 File Directory Press to return to main menu interface and press (OTHER) to select the FILES icon, and then press to enter FILE management function as Figure 4-79. In file list menu, All saved files was list with file type, names, date and time.

  • Page 113: Save File

    DS2460Q QAM Analysis Meter Operation Manual 4.21.2 Save File If you are making measurements in LEVEL, TILT, SCAN, SPECT, LIMIT and HUM(at least one of them), Press button, and the screen will display as Figure 4-80.The program automatic setup a file name. If you...
  • Page 114 DS2460Q QAM Analysis Meter Operation Manual Figure 4-81 Figure 4-82...

  • Page 115: Read File

    DS2460Q QAM Analysis Meter Operation Manual 4.21.3 Read File Press to return to main menu interface and press (OTHER) to select the FILES icon, and then press to enter FILE management function as Figure 4-79. Press button, move the cursor, and then press to open the file.
  • Page 116 DS2460Q QAM Analysis Meter Operation Manual Figure 4-85, Figure 4-86, Figure 4-87, Figure 4-88. Figure 4-84 Figure 4-85...
  • Page 117 DS2460Q QAM Analysis Meter Operation Manual Figure 4-86 Figure 4-87...
  • Page 118 DS2460Q QAM Analysis Meter Operation Manual Figure 4-88...

  • Page 119: Delete File

    DS2460Q QAM Analysis Meter Operation Manual 4.21.4 Delete File Select one file by press and press DELETE( ) to delete this selected file, the “DELETE FILE” dialog will display as Figure 4-89. Figure 4-89 Press (ENTER) in Figure 4-89, the file will be...
  • Page 120 DS2460Q QAM Analysis Meter Operation Manual Figure 4-90...

  • Page 121: Setup

    DS2460Q QAM Analysis Meter Operation Manual Setup Brief Introduction Press to return to main interface and press open the other page, select the SETUP icon, and then press to enter SETUP menu as show in Figure 5-1. Figure 5-1 *INFORMATION:...
  • Page 122 DS2460Q QAM Analysis Meter 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, TP compensation, Limit select, Limit setup, Auto diagnosis and Measure mode.

  • Page 123: Information

    DS2460Q QAM Analysis Meter Operation Manual Information This is the information of the instrument, Refer to Figure 5-2.It includes serial number, software version , hardware version, calibration date and so on. Figure 5-2...

  • Page 124: General

    DS2460Q QAM Analysis Meter Operation Manual General 5.3.1 Meter Shutdown Time 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 show in Figure 5-3.

  • Page 125: Language Selection

    DS2460Q QAM Analysis Meter Operation Manual 5.3.2 Language Selection The language of DS2460Q can switch among English, Dutch, Russian and Korean as Figure 5-4. After choose, instrument will transform menu automatically. The DS2460 have plan support more languages. Figure 5-4...

  • Page 126: Date And Time

    DS2460Q QAM Analysis Meter Operation Manual 5.3.3 Date and Time When there is something wrong in system date or clock, user can calibrate new date or time, as Figure 5-5. Figure 5-5...

  • Page 127: Files Status

    DS2460Q QAM Analysis Meter Operation Manual 5.3.4 Files Status This interface shows the number of files have been saved, and also show the Memory status as Figure 5-6. Figure 5-6...

  • Page 128: System Upgrade

    DS2460Q QAM Analysis Meter Operation Manual 5.3.5 System upgrade This function is used to open DS2460Q option. Now DS2460 provide four options: OPM, VFL, EQUALIZER, 8VSB. Now, the DS2460Q doesn’t provide TDR option, but DS2460Q has plan to provide TDR option.
  • Page 129 DS2460Q QAM Analysis Meter Operation Manual password input dialogue box, show as the Figure 5-8. Press the button, the user can input the password, show as the Figure 5-9. Figure 5-8 Figure 5-9...

  • Page 130: Network

    DS2460Q QAM Analysis Meter Operation Manual 5.3.6 Network DS2460Q has one RJ-45 Ethernet port and support PING function, so the network setting feature is must. In general setup screen, move the cursor on “NETWORK” item. Press (ENTER) or button. The network setup screen address can be opened, as show in the Figure 5-10 and Figure 5-11.
  • Page 131 DS2460Q QAM Analysis Meter Operation Manual Figure 5-11 The Figure 5-12 show the PING measurement snapshot. Figure 5-12...

  • Page 132: Measurement Parameter Setup

    DS2460Q QAM Analysis Meter Operation Manual Measurement Parameter Setup 5.4.1 Level Unit There are different units of measure for different countries and industries, the DS2460 supports 3 unit formats: dBmV, dBμV and dBm and will automatically convert values for convenience and better user experience.

  • Page 133: Tp Compensation

    DS2460Q QAM Analysis Meter Operation Manual 5.4.2 TP Compensation When the cursor is moved to “TP COMPENSATION”, use the button or (TAB) move the cursor on the different check box, TEST POINT value and PROBE value. TP compensation can be edited and applied only if the related box is checked.
  • Page 134 DS2460Q QAM Analysis Meter Operation Manual PROBE value in the probe correction box. In this example, the total correction value is 21.5dB. In the measurement interface, the instrument will add TP COMPENSATION=21.5dB in the test result. After total compensation, the test result will display the true network measurement values.

  • Page 135: Limit Select

    DS2460Q QAM Analysis Meter Operation Manual 5.4.3 Limit Select DS2460Q support 10 group limits setting. If the cursor move to “LIMIT SELECT” position. User can use the button move the cursor on different group limit setting and press (SELECT) or button to confirm you choice.

  • Page 136: Limit Setup

    DS2460Q QAM Analysis Meter Operation Manual 5.4.4 Limit Setup Three pages of Limit setting have been provided as show in Figure 5-16, Figure 5-17 and Figure 5-18. Six Limit items included in page one(1/3) , which is used for single analog channel test. The default value of...
  • Page 137 DS2460Q QAM Analysis Meter Operation Manual Table 5-1. The range of these Limit items are list as Table 5-2. The difference between MAX VIDEO and MIN VIDEO must be larger than 6dB. Figure 5-16 Figure 5-17...
  • Page 138 DS2460Q QAM Analysis Meter Operation Manual Figure 5-18...
  • Page 139 DS2460Q QAM Analysis Meter Operation Manual Table 5-1 Item Limit Minimum Video level 60dBμV Maximum Video level 100dBμV Minimum △ V/A 10dB Maximum △ V/A 20dB Maximum VID 10 dB Maximum VID DEV 3 dB Table 5-2 Item Limit Minimum Video level 30~99dBμV...
  • Page 140 DS2460Q QAM Analysis Meter Operation Manual default value of these Limit items are list as Table 5-3. The range of these Limit items are list as Table 5-4. The difference between MAX POWER and MIN POWER must be larger than 6dB.
  • Page 141 DS2460Q QAM Analysis Meter Operation Manual Page three(3/3) is used for tilt measurement, two limit items list including of MIN TILT and MAX TILT. The default value of these Limit items are list as Table 5-5. The range of these Limit items are list as Table 5-6.
  • Page 142 DS2460Q QAM Analysis Meter Operation Manual NOTE: If the digital channels have been included in tilt measurement with analog channels, the power of digital channels will be add a fixed offset so that it can be compare with video of analog channels.

  • Page 143: Auto Diagnosis

    DS2460Q QAM Analysis Meter Operation Manual 5.4.5 Auto Diagnosis You can enable the auto diagnosis function(PASS and FAILURE) as Figure 5-19. Figure 5-19 NOTE: Before the auto diagnosis function can be work correctly, the Limit items must be set the valid values.

  • Page 144: Measure Mode(Option)

    DS2460Q QAM Analysis Meter Operation Manual 5.4.6 Measure Mode(Option) The DS2460 offers adaptive equalizer setup : Long Taps and Short Taps. Long Taps can better suppression ISI (Inter Symbol Interference) co-frequency interference. Short taps equalizer cooperate with a better selective filter and provide a better performance in full-loaded CATV plant.
  • Page 145 DS2460Q QAM Analysis Meter Operation Manual MODE” item, show as the Figure 5-21. Figure 5-21...

  • Page 146: Voltage And Temperature

    DS2460Q QAM Analysis Meter Operation Manual 5.4.7 Voltage and temperature The icon “MEAS” in the HOME PAGE 2 is used to enter the trunk voltage and temperature measurement interface. Trunk Voltage This meter will automatically judge whether it is AC or DC in the trunk, and display the trunk voltage on the screen as Figure 5-22.
  • Page 147 DS2460Q QAM Analysis Meter Operation Manual Temperature Inside DS2460Q can monitor inside temperature itself, and display Celsius or Fahrenheit at the same time, refer to Figure 5-23. Figure 5-23...

  • Page 148: Channel Plan

    DS2460Q QAM Analysis Meter Operation Manual Channel Plan Up to 20 user plans can be built and saved. The user plans are labeled as PLN0 to PLN19. User can choose one as current user plan as Figure 5-26. Then, the meter will measure according to the selected the user plan.
  • Page 149 DS2460Q QAM Analysis Meter Operation Manual First step, choose the first item “SELECT USER PLAN”. Enter the select user plan screen, you can look at the channel plan list, use the button move the cursor on the different channel plan. If you...
  • Page 150 DS2460Q QAM Analysis Meter Operation Manual Figure 5-26...

  • Page 151: Learn User Plan

    DS2460Q QAM Analysis Meter Operation Manual 5.5.2 Learn User Plan You can build and store up to 20 user plans in meter. Before first measurement, you should build the user plan to make the meter be compatible with your cable system. Figure 5-27 and Figure 5-28 show how to learn user plan.
  • Page 152 DS2460Q QAM Analysis Meter Operation Manual Figure 5-28...

  • Page 153: Edit User Plan

    DS2460Q QAM Analysis Meter Operation Manual 5.5.3 Edit User Plan The user plan is combined by following: * Digital(numeric) channel number * Standard (alphanumeric) channel number * Channel type (Analog, DVB-C, DOCSIS） * Carrier frequency * Audio offset * Activation status...
  • Page 154 DS2460Q QAM Analysis Meter Operation Manual Figure 5-29 Figure 5-30 EDIT USER PLAN will show the channels list on the screen as Figure 5-29 and Figure 5-30, you can only exit this function by press the (HOME) key, press to highlight one channel, and press...
  • Page 155 DS2460Q QAM Analysis Meter Operation Manual (EDIT)to edit channel parameters as Figure 5-31. Figure 5-31 Figure 5-32 show all signal types related channel information. (Analog, DVB-C, DOCSIS) Figure 5-32...

  • Page 156: Load Default

    DS2460Q QAM Analysis Meter Operation Manual 5.5.4 Load Default If you move the cursor on the “LOAD DEFAULT” item and press the button, the screen will popup prompting message: “LOAD DEFAULTS?”. If you press (YES), the system program will automatic restart, at the same time the program will remove all user settings and saved files.

  • Page 157: Power Supply

    DS2460Q QAM Analysis Meter Operation Manual Power Supply Battery DS2460Q uses built-in 7.4V 2.5AH Li-Polymer battery and works over5when fully charged. When the voltage of the battery drops to 6.8V, the battery icon flashes in screen. Once the voltage of the battery is lower than 6.8V, the instrument will shut down...

  • Page 158: Charging

    DS2460Q QAM Analysis Meter Operation Manual Charging Please charge the instrument as following charging process: 1. Insert the charger output plug to DS2460Q’ DC charge socket. 2. Connect the charger to AC 100V-240V Power and the charger indicator will light with red.

  • Page 159: Port

    DS2460Q QAM Analysis Meter Operation Manual Port The instrument can communicate with a PC through the Micro USB communication port. Refer to Figure 7-1 and Figure 7-2. Figure 7-1USB port type Figure 7-2 Micro-B USB 2.0 Receptacle and Plug...
  • Page 160 DS2460Q QAM Analysis Meter Operation Manual Management PC software-Toolbox is provided as standard. You can remotely control the instrument to download the measurement results or download the channel plan. The test results can be displayed as graph on the PC monitor for analysis and printing.

  • Page 161: Specification

    DS2460Q QAM Analysis Meter Operation Manual Specification Normal Spectrum Analysis Frequency Range 45MHz~1052MHz Span 2.5MHz, 6.25MHz, 12.5MHz, 25MHz, 62.5MHz, Full Span Fast Spectrum Analysis Frequency Range 5MHz~1220MHz Span 12.5MHz, 25MHz, 62.5MHz, Full Span Return path Spectrum Analysis Frequency Ranger 5~210MHz...
  • Page 162 DS2460Q QAM Analysis Meter Operation Manual Level Range: -30dBmV to +60dBmV; Measurement Accuracy: ±2dB; Resolution: 0.1dB Frequency Range: 5M-1052M ; Accuracy: ±50ppm; Resolution: 10KHz Resolution 280KHz Bandwidth >50dB HUM Measurement 2% to 15% Range Digital TV Power Level Range: -30dBmV to +60dBmV;...
  • Page 163 DS2460Q QAM Analysis Meter Operation Manual 41dB; Accuracy ±2dB 1E-3 to 1E-9 Constellation QAM64 and QAM256 with zoom in Display Mode and zoom out capability 8VSB (Option) Frequency Range 46 ~ 1000MHz Power Level -35dBmV ~ +60dBmV; Accuracy:< Range ±2.0dB; Resolution: 0.1dB...
  • Page 164 DS2460Q QAM Analysis Meter Operation Manual Range -50dBm ~ +27dBm Linearity 0.07dB/10dB Resolution 0.01dBm, mW, μW, nW Wavelength 850nm, 980nm, 1300nm, 1310nm, 1490 nm, 1550nm, 1610 nm Interface FC\SC\ST Universal Connector Interface Adapter VFL (Visual Fault Location) (Option) Output Power 10mW Output Wavelength 650±10nm...
  • Page 165 DS2460Q QAM Analysis Meter Operation Manual Ethernet 10/100 BASE-T Display 2.8” 320x240 TFT LCD AC/DC Adapter AC 100V to 240V 50-60Hz, DC 15V/0.9A Battery 7.4V 2.5Ah Lithium Battery Charge Time <4 hours Working Time >5 hours Dimension 200mm × 106mm × 54mm (W×H×L)

  • Page 166: Standard Accessories

    DS2460Q QAM Analysis Meter Operation Manual Standard Accessories Standard Accessories Quantity DS2460Q AC-DC power adapter/charger Carrying bag F connect Manual and Toolbox software CD...
  • Page 167 DS2460Q QAM Analysis Meter Operation Manual Deviser(US) Address:780 Montague Expressway, Suite701, San Jose, CA95131, USA Tel:+1 408 955 0938 http://www.deviserinstruments.com E-mail: info@deviserinstruments.com Deviser(China) Address: No.8, Haitai Chuangxin 3rd Road, Hi-tech Industrial Development Area, Tianjin, China, 300392 Tel: +86 2764 5003 ext.803 http://www.deviserinstruments.com...

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