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120 DSP Operation Manual

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Basic Signal Level Meter

120

Summary of Contents for 120 DSP

Page 1: ...d www trilithic com Copyright 2017 Trilithic Inc All Rights Reserved 082517 REV3 Specifications are subject to change without notice Please contact your sales representative for further information 120 DSP Basic Signal Level Meter Operation Manual ...

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Page 3: ...into managing change helping customers respond quickly to market opportunities with innovative technology and individualized solutions But the core value of Trilithic s business approach listening to customers hasn t changed Keeping that focus intact will help provide better products in the long run and ensure continued growth for decades to come Trilithic is comprised of two major divisions Broad...

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Page 5: ...ftware Hardware I 7 ViewPoint Express I 7 Chapter 2 Introduction I 9 What is the 120 DSP I 9 Overview I 9 Autotest Apps I 9 Job Management I 9 Level Measurements I 10 Channel Plan Scan I 10 Spectrum Measurements I 10 Simple Yet Powerful I 10 Standard Testing Features I 11 Standard Interfaces I 11 HUM Measurement I 11 User Defined Autotests I 11 Limit Testing I 11 Flexible Data Storage I 12 Optiona...

Page 6: ...ective Carrying Case I 18 Cleaning the Display Screen I 19 Battery Charging I 20 Charging Status I 21 Basic Navigation Control I 22 Startup I 22 Sleep Mode I 23 Automatic Sleep Mode I 23 Manual Sleep Mode I 23 Wake from Sleep Mode I 23 Shutdown I 24 Automatic Shutdown I 24 Manual Shutdown I 24 Display Screen I 25 Title Bar I 25 Message Bar I 25 Main Display Area I 26 Softkey Labels I 27 Selecting ...

Page 7: ... 36 Disconnect a Network Connection I 36 Ethernet Connection I 37 Log Off User I 39 Section II Setup Menu II 1 Chapter 1 Overview II 3 Introduction II 3 Chapter 2 Instrument Information II 5 Overview II 5 Version Information II 6 Calibration Information II 6 Network Information II 7 Memory Information II 7 Option Information II 8 Option Activation II 9 Unit ID II 9 Function Menu Options II 10 Boot...

Page 8: ...gs II 24 LCD Dimming Delay II 25 Sleep Mode Delay II 26 Turn Off Delay II 27 Flashlight Delay II 28 Keypad Beeps II 28 Keypad Delay II 29 Keypad Rate II 30 Temperature Units II 31 Distance Units II 31 Job Workorder ID Length II 32 Language II 33 Measurement Settings II 34 Analog Noise Bandwidth II 35 Optimal Modulation II 36 Velocity of Propagation II 37 Hum Type OPTIONAL II 37 Channel Plan Manage...

Page 9: ...nel Standard II 51 Center Frequency II 52 Bandwidth II 53 Modulation II 54 Symbol Rate II 54 DOCSIS II 55 Channel Presets II 55 Save an Open Channel Plan II 56 Save an Open Channel Plan with a New Name II 56 Limit Set Management II 57 Create a New Limit Set II 58 Open an Existing Limit Set II 59 Removing Limits from a Limit Set II 60 Knowing Your Limits II 60 Editing Limit s II 63 Save an Open Lim...

Page 10: ...I 76 Restore from USB Flash Drive II 77 Cloning Meter Settings to a New Meter II 78 Import ViewPoint Files from a USB Flash Drive II 81 Export a File II 83 Export All Files II 85 Delete Files II 87 Save Log File II 88 Save to Internal Memory II 88 Save to a USB Flash Drive II 89 Function Menu Options II 90 Activate USB Power II 90 Deactivate USB Power II 90 Chapter 5 Firmware Updates II 91 Overvie...

Page 11: ... a New Job III 6 Close an Open Job III 7 Open a Closed Job III 8 Delete an Existing Job III 9 Function Menu Options III 10 Changing Channel Plan of an Existing Job III 10 Changing Comments of an Existing Job III 12 Changing Comments of an Existing Job III 12 Chapter 3 Using Autotests III 13 Overview III 13 Location Pass Fail Indicators III 15 Executing an Autotest III 16 Pass Fail Measurement Indi...

Page 12: ...le Adjustment IV 12 Channel Adjustment IV 12 Video Frequency Adjustment IV 13 Audio Frequency Adjustment IV 14 Display Type Adjustment IV 15 Bar Graph IV 15 HUM OPTIONAL IV 16 Go to Spectrum OPTIONAL IV 17 Go to Scan IV 18 Digital Channel Measurement IV 19 Reference Level Adjustment IV 20 Vertical Scale Adjustment IV 21 Channel Adjustment IV 21 Digital Video Frequency Adjustment IV 22 Channel Band...

Page 13: ... IV 36 Function Menu Options IV 37 Save Data Log IV 37 Test Point Compensation IV 39 Test Point Loss IV 39 Probe Loss IV 40 Save Preset IV 41 Load Preset IV 42 Auto Range IV 43 Chapter 3 Channel Plan Scan IV 45 Overview IV 45 Opening a Channel Plan IV 46 Opening a Limit Set IV 47 Removing a Limit Set IV 48 Pass Fail Measurement Indicators IV 49 Display Type Adjustment IV 50 Measurement Results IV ...

Page 14: ...il Measurement Indicators IV 67 Reference Level Adjustment IV 68 Vertical Scale Adjustment IV 69 Stop Frequency Adjustment IV 69 Marker Adjustment IV 70 Peak Hold IV 71 Function Menu Options IV 72 Save Data Log IV 72 Hide Marker Bar IV 74 Test Point Compensation IV 75 Test Point Loss IV 75 Probe Loss IV 76 Save Preset IV 77 Load Preset IV 78 Forward Spectrum Measurement OPTIONAL IV 79 Reference Le...

Page 15: ...d Favorite IV 96 Chapter 5 Network Test Suite IV 97 Overview IV 97 Selecting the Test Mode IV 98 Setting the Destination IP Address IV 99 Selecting a Favorite IV 100 Executing Network Tests IV 100 Ping Mode IV 101 Setting the Number of Packets IV 102 Throughput Mode IV 103 Setting the Target Downstream Rate IV 103 Setting the ACTS Port IV 104 Traceroute IV 104 Opening a Limit Set IV 105 Removing a...

Page 16: ...ment V 3 Digital Channel Measurement V 4 Carrier to Noise Measurement V 4 Tilt Measurement V 4 Forward Spectrum Measurement OPTIONAL V 5 Hum Measurement OPTIONAL V 5 Physical Specifications V 6 Available Interface Types V 7 Battery Power Specifications V 7 Environmental Specifications V 8 Chapter 2 Warranty Information V 9 Trilithic Broadband Instruments 1 Year Limited Warranty V 9 ...

Page 17: ...www trilithic com 120 DSP Basic Signal Level Meter Section I The Basics ...

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Page 19: ...rt is available Monday through Friday from 8 00 AM to 5 00 PM EST Callers in North America can dial 1 317 895 3600 or 1 800 344 2412 toll free International callers should dial 1 317 895 3600 or fax questions to 1 317 895 3613 You can also e mail technical support at support trilithic com For quicker support response when calling or sending e mail please provide the following information Your name...

Page 20: ...ion describes how this operation manual is structured and gives an overview of the instrument and its basic features Before using the instrument it is recommended that the user read this section for an overview of features basic commands and other important details Section II Setup Menu This section includes instructions on how to use the features shown in the Setup Menu of the instrument Section ...

Page 21: ...tions A CAUTION alerts you to any condition that could cause a mechanical failure or potential loss of data Do not use the instrument in any manner not recommended by the manufacturer A strong electromagnetic field may affect the measurement accuracy of the 120 DSP A NOTE is information that will be of assistance to you related to the current step or procedure A WARNING alerts you to any condition...

Page 22: ...to wipe the screen If you do these non ultrasoft materials can cause permanent damage by scratching the screen or stripping the anti glare coating off the screen Never use any type of window cleaner soap scouring powder or any cleanser with solvents such as alcohol benzene ammonia or paint thinner These chemicals can react with the materials used to construct the display which can lead to hazing y...

Page 23: ...llows Software registration and activation Create channel configuration presets and test locations Create and organize channel plans limits sets and autotests Create configuration packages with channel plans limit sets and autotests Define meter settings Upload and download data to your 120 DSP via a USB flash drive Query display and delete test data optional For the most current version of ViewPo...

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Page 25: ...dures Powerful Troubleshooting Tools Improve the Overall Health of the System Up to Six Hours of Operation from a Single Charge Autotest Apps The 120 DSP streamlines your testing procedures while making installation and troubleshooting more efficient with the use of Autotest apps These apps allow users to perform a Return Spectrum and Channel Plan Scan of the channels included in the selected chan...

Page 26: ...r your favorite channels in the active channel plan The channel plan scan also includes on screen markers that can be adjusted to perform a tilt measurement Spectrum Measurements The 120 DSP comes standard with the ability to display the the full return spectrum from 4 to 110 MHz The spectrum display provides peak measurements color coded markers and delta measurements This feature also includes a...

Page 27: ...result from a defective power supply or faulty or overloaded power inserters This function enables the 120 DSP to measure the amplitude of the 50 60 Hz 100 120 Hz and low frequency interference HUM present on the video QAM carrier of a single selected analog or digital channel User Defined Autotests A significant time and cost savings feature of the 120 DSP is the capability to group tests into au...

Page 28: ... drive The 120 DSP can also save measurement results and screen captures for Level Channel Plan Scan Return Spectrum and Autotest measurements and these files can then be transferred to a standard USB flash drive for upload into the ViewPoint Express software for reporting analysis and printing optional Optional Features The following optional features are available for the 120 DSP Forward Spectru...

Page 29: ...eter Two Built In Li Ion Batteries Protective Carrying Case with Shoulder Strap AC to DC Power Adapter Battery Charger USB Charge Data Cable Mini B to Standard A Male USB Flash Drive Adapter Mini B Male to Standard A Female Replacement Parts The following replacement parts are available for the 120 DSP Part Number Description 0090048000 Li ION Replacement Battery Replacement Requires 2 Batteries 2...

Page 30: ...4000 ACTS software for high speed network testing Field Accessories The following accessories are available for the 120 DSP Part Number Description 2071527048 Precision RF Coaxial Test Cable I O 15 0610169007 CL 9 Vehicle Power Adapter with USB cable 0610169004 CL 9 Vehicle Power Adapter without USB cable 2071585004 Mini USB Power Data Cable I O 20 0610169012 Euro Power Adapter 0610169013 UK Power...

Page 31: ...5 120 DSP Operation Manual Basic Signal Level Meter 1 20 A Guided Tour of the 120 DSP Front View RF Input Connector LCD Screen Soft Keys Back Button Arrow Buttons Power Button Enter Button Function Button Water Resistant Speaker ...

Page 32: ...www trilithic com Page I 16 120 DSP Operation Manual Basic Signal Level Meter 1 20 Rear View RF Input Connector Identification Label S N FCC ID Notice ...

Page 33: ...w RF Input Connector LED Flashlight Ethernet Port 10 100 Mbit s System Reset Button Charge and Data Port Mini USB Type B Protective Rubber Door In the image above the protective rubber door is in the open position for illustrative purposes This door should remain closed when not using any of these ports ...

Page 34: ...aximum protection High strength zipper to ensure secure closure Adjustable Velcro hand strap Removable shoulder strap not shown Metal D rings for shoulder strap or line hook with reinforced stitching throughout Front flap with magnetic closure provides full access to the screen keypad and bottom ports when open When the front flap is closed it provides protection to the screen and keypad as well a...

Page 35: ...loth and then wipe the screen gently For correct cleaning of the display follow these four simple steps 1 Turn off the 120 DSP before you begin If the screen is dark it will be easier to see any areas that aren t clean 2 Very gently wipe the display with an ultrasoft clean lint free dry cloth If this does not completely clean the display DO NOT press harder on the screen in an attempt to clean the...

Page 36: ... charge the batteries while the instrument is in use Plug the power adapter battery charger into the DC charge port of the 120 DSP on the bottom of the instrument under a protective cover Your instrument is equipped with a smart battery charging circuit so that the charging method fast or trickle is an auto function Fast Charge is used to charge the battery quickly Trickle Charge is used to keep t...

Page 37: ... VDC or approximately 75 of battery capacity 50 Charge This icon is displayed when the 120 DSP battery is charged from a minimum of 3 50 VDC or approximately 50 of battery capacity 25 Charge This icon is displayed when the 120 DSP battery is charged from a minimum of 3 40 VDC or approximately 25 of battery capacity When the battery charge drops to this level it is recommended that the battery is c...

Page 38: ... screen as shown in the image above Use the keypad to select the user profile that you wish to use The Troubleshoot menu will be displayed as shown in the image to the right If multiple user profiles are deactivated the 120 DSP will automatically display the Troubleshoot menu as shown in the image to the right For more information about configuring multiple user profiles see Section II Setup Chapt...

Page 39: ...eriod of time The default setting for the sleep mode delay is 5 Minutes The sleep mode delay can be set from a minimum of one 1 minute up to a maximum of 60 minutes Manual Sleep Mode To manually enter the sleep mode quickly press the Power button Wake from Sleep Mode Quickly Press the Power button to wake the 120 DSP from sleep mode The sleep mode delay timer will automatically restart For more in...

Page 40: ... off delay is 1 Hour The turn off delay can be set from a minimum of one 1 hour up to a maximum of 24 hours Manual Shutdown Press and hold the Power button to shutdown the 120 DSP A notification window will be displayed Select the OK button to shutdown or select the Cancel button to exit without shutting down the device For more information about setting the Turn Off Delay see Section II Setup Cha...

Page 41: ...ocated at the top of the display screen an example is shown in the image below The left side of the title bar displays the name of the currently selected screen such as the Autotest Troubleshoot and Setup menus the right side of the Title Bar displays the battery voltage charging status date and time Message Bar The message bar is located below the main display area an example is shown in the imag...

Page 42: ...sed If multiple user profiles are enabled the Welcome to the 120 DSP screen will always be displayed upon startup as shown in the image to the right After selecting a function icon from any navigation menu the measurements and data will be displayed in this area For example the image shown to the right represents the type of information that would be displayed in a measurement mode After selecting...

Page 43: ... the Autotest Troubleshoot and Setup softkeys Other Screens On measurement screens the softkeys are used to access additional measurement functions such as SETUP FUNCTIONS File Management New Open Save and Save As commands for Channel Plan Limit Set Channel Plan Management Add Remove and Preset commands Limit Set Management Remove command MEASUREMENT UTILITY FUNCTIONS Job Management New Open Close...

Page 44: ... display screen use the arrow buttons on the keyboard to highlight the desired item and then press the Enter button In the example images shown to the right notice how the currently selected item is highlighted blue and the other items remain gray Once you select an item you will either enter a new function or a window will appear ...

Page 45: ...s Select channel plans and limit sets from file lists Arrow Buttons The arrow buttons are used to navigate highlight items scroll lists or change values on the display screen Back Button The Back button is used to take you back to a previous screen or to close a menu It can also be used to exit a pop up entry window without accepting entry information If you hold down the Back button this will cau...

Page 46: ...o display a keyboard with lower case letters Select the ABC softkey to display a keyboard with upper case letters Select the 123 softkey to display a keyboard with numbers and symbols Select the 123 softkey to display a keyboard with additional symbols To delete existing text use the Back softkey Once you have finished making changes select the Done softkey to save your changes and exit or select ...

Page 47: ... the navigation menus or from within many of the instrument functions Press the Function button to display the Function menu as shown in the image to the right This chapter will provide you with an understanding of the most common Function menu options as follows Pause Meter Toggle Flashlight Screen Capture Network Manager Log Off User ...

Page 48: ...ed to pause the meter during measurements To pause meter measurements select the Pause Meter button from the Function menu as shown in the image to the right The Title Bar will be highlighted in red and display Paused until the pause meter function is disabled To exit the pause meter function Press the Back button ...

Page 49: ... the Function menu as shown in the image to the right The LED flash light will illuminate until the flashlight delay has expired between 30 and 180 seconds user adjustable or it has been manually toggled off To manually toggle the LED flash light off Press the Function button and then select the Toggle Flashlight function again To adjust the Flashlight Delay see Section II Setup Chapter 3 Meter Co...

Page 50: ... as shown in the image to the right If you have an open job you can also save the screen capture to the job by selecting Yes as shown in the image to the right If you don t want to save the test to the open job select No and you will be prompted to enter a file name using the Virtual Keyboard It will then be saved to the internal memory of the 120 DSP To view the files saved to the internal memory...

Page 51: ...anager button from the Function menu as shown in the image to the right The Network Manager window provides controls for the following type of network connection Ethernet This enables the built in 10 100 Mbit s Ethernet Port Network Manager Before proceeding through this section you should first setup the default network configuration as shown in Section II Setup Chapter 3 Meter Configuration ...

Page 52: ...cates the connection is currently active Inactive This symbol indicates the connection is currently inactive From any navigation menu the active connection is shown in the right side of the Status Bar as follows Ethernet This symbol indicates the Ethernet connection is currently active Disconnect a Network Connection To disconnect an active network connection select any connection button with an a...

Page 53: ...r window as shown in the image to the right Ethernet Connection 3 If the Prompt User option is set to Yes from within the Ethernet Settings option of the Setup menu the Ethernet Settings window will appear as shown in the image to the right Adjust the Ethernet settings as desired and then select the Login button If the Prompt User option is set to No from within the Ethernet Settings option of the...

Page 54: ...gs window will display the network connection progress as shown in the image to the right 5 The icon of the active connection will be displayed in the Message Bar 6 Return to the Network Manager window to view the MAC IP Subnet Gateway and DNS of the Ethernet connection as shown in the image to the right ...

Page 55: ...lect the Log Off User button from the Function menu as shown in the image to the right The Welcome to the 120 DSP screen will be displayed from this screen you can now log in as a different user If the Multiple Users option is set to No from within the Global Settings option of the Setup Menu the Log Off User function and welcome screen will not be displayed ...

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Page 57: ...www trilithic com 120 DSP Basic Signal Level Meter Section II Setup Menu ...

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Page 59: ...P enables you to select from numerous instrument setup functions These functions allows you to view edit and adjust information and setup parameters for the meter This section will provide you with instructions on how to utilize the functions available in the Setup menu of the instrument including Instrument information Meter configuration File management Firmware updates Overview Chapter 1 ...

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Page 61: ...ion icon as shown in the image to the right to view information about the 120 DSP The unit serial number is located on the right side of the Message Bar This information is set at the Trilithic factory and cannot be changed by the user The serial number also appears on a label on the back side of the 120 DSP Please provide this number when requesting an RMA for troubleshooting service calibration ...

Page 62: ...r periodic maintenance Version Information Select the Version Information button to display details on the version of software firmware installed in the 120 DSP This information will be helpful if you are updating your firmware or upgrading your instrument s option package When the 120 DSP is sent in for calibration this information will be automatically updated You should schedule the 120 DSP for...

Page 63: ...o displays network details such as MAC IP SN GW and DNS This information is helpful for quick reference of your current network status Memory Information Select the Memory Information button to display details of the memory available and used on the 120 DSP This information is automatically updated as files are saved and stored in the 120 DSP ...

Page 64: ...which options that are available to use and those options that you can install on the 120 DSP This information is automatically updated as options are added to the 120 DSP After initial sale most options can be simply added with the purchase of an option activation code For more information call your sales representative or Trilithic at 800 344 2412 ...

Page 65: ... shown in the image to the right is not required when entering the option activation key Unit ID Select the Unit ID softkey to view the serial number associated with this meter Select the OK button to exit this window 120 DSP The option code is a unique activation number that is specifically generated for your instrument You should have received this code with your order for new options If you are...

Page 66: ... Mode Pause Meter Toggle Flashlight Screen Capture Boot Parameters Detect Issues The following functions are described in Section I The Basics Chapter 4 Function Menu Pause Meter Toggle Flashlight Screen Capture Boot Parameters Select the Boot Parameters button to view the more information about the boot parameters of the 120 DSP The boot parameters will be displayed in the right side of the Infor...

Page 67: ...r 1 20 Detect Issues Select the Detect Issues button to detect any file system issues of the 120 DSP Any detected file system issues will be displayed in the right side of the Information screen This information is used for advanced troubleshooting by Trilithic technical support ...

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Page 69: ...ight This screen allows you to modify the following types of settings Global User Interface Measurement Channel Plan Management Limit Set Management Ethernet Meter Configuration Chapter 3 Overview Select the Setup icon as shown in the image to the right to adjust the meter configuration of the 120 DSP All changes that are made in this mode are automatically saved ...

Page 70: ...will be displayed as shown in the image to the right This screen allows you to modify the global settings of the 120 DSP From within the Global Settings screen use the left right arrow buttons on the keypad to navigate through the list of setup items These parameters can be set directly from your instrument or using ViewPoint Express For instructions regarding setup using ViewPoint Express please ...

Page 71: ...l for the normal mode of operation Select Logging for troubleshooting with Trilithic technical support Select Calibrate to enter the calibration mode Multiple User Control The Multiple Users setting is used to control whether multiple user profiles are displayed when the 120 DSP is powered on The default setting for Multiple Users is Yes use the up down arrow buttons to select from the following p...

Page 72: ...pon startup login It is set to Ethernet and is fixed Tethering Control The Direct to Tethered setting is used to control whether the 120 DSP automatically enters its tethered mode upon startup login The default setting for Direct to Tethered is No use the up down arrow buttons to select from the following preset values Select Yes to allow automatic tethering upon startup login Select No to disable...

Page 73: ... English Spanish Portuguese Chinese Chinese Simplified Japanese If you have other language options available on your instrument you can change the default language You must restart the device before language changes take affect Measurement Units The Measurement Units settings is used to choose the default measurement units The default unit of measurement is dBmV use the up down arrow buttons to se...

Page 74: ...job and autotest Press the Enter button and the Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter the current date in the mm dd yyyy format Select the Done softkey and the Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter the current time in the hh mm ss format Select the Done softkey again ...

Page 75: ...120 DSP This is useful when using the instrument in areas that automatically adjust their local time based on Daylight Savings Time DST Press the Enter button and the Set Timezone window will be displayed as shown in the image to the right Use the up down arrow buttons to choose the desired timezone and then press the Enter button to select the timezone ...

Page 76: ...ated with the currently logged in user of the 120 DSP The User screen will be displayed as shown in the image to the right This screen allows you to modify the user settings of the currently logged in user of the 120 DSP From within the User screen use the left right arrow buttons on the keypad to navigate through the list of setup items These parameters can be set directly from your instrument or...

Page 77: ...e user name for the user profile that is currently logged into the 120 DSP This information is displayed on the welcome screen and is added to every data log measurement job and autotest Press the Enter button and the Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter the user name ...

Page 78: ...pany name for the user profile that is currently logged into the 120 DSP This information is displayed on the welcome screen and is added to every data log measurement job and autotest Press the Enter button and the Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter the company name ...

Page 79: ...nician ID for the user profile that is currently logged into the 120 DSP This information is displayed on the welcome screen and is added to every data log measurement job and autotest Press the Enter button and the Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter the technician ID ...

Page 80: ... Interface screen will be displayed as shown in the image to the right This screen allows you to modify the user interface settings From within the Interface screen use the left right arrow buttons on the keypad to navigate through the list of setup items These parameters can be set directly from your instrument or using ViewPoint Express For instructions regarding setup using ViewPoint Express pl...

Page 81: ...from a minimum of one 1 minute up to a maximum of five 5 minutes Use either of the following methods to change the LCD dimming delay Use the up down arrow buttons to change the value in one 1 minute increments Press the Enter button and use the Virtual Keyboard to directly enter the LCD dimming delay as shown in the image to the right Upon any button press the LCD will automatically brighten and t...

Page 82: ...e 1 minute up to a maximum of 60 minutes Use either of the following methods to change the sleep mode delay Use the up down arrow buttons to change the value in one 1 minute increments Press the Enter button and use the Virtual Keyboard to directly enter the sleep mode delay as shown in the image to the right Quickly Press the Power button to awaken the 120 DSP from sleep mode The sleep mode delay...

Page 83: ...a specified period of time The default setting for the turn off delay is 1 Hour The turn off delay can be set from a minimum of one 1 hour up to a maximum of 24 hours Use either of the following methods to change the turn off delay Use the up down arrow buttons to change the value in one 1 hour increments Press the Enter button and use the Virtual Keyboard to directly enter the turn off delay as s...

Page 84: ...of 180 seconds Use either of the following methods to change the flashlight delay Use the up down arrow buttons to change the value in 30 second increments Press the Enter button and use the Virtual Keyboard to directly enter the flashlight delay as shown in the image to the right Keypad Beeps The Keypad Beeps setting is used to enable or disable keypad beeps for the internal speaker The default s...

Page 85: ...he keypad delay is 300 mSeconds The keypad delay can be set from a minimum of 100 mSeconds up to a maximum of 1000 mSeconds Use either of the following methods to change the keypad delay Use the up down arrow buttons to change the value in 50 mSecond increments Press the Enter button and use the Virtual Keyboard to directly enter the keypad delay as shown in the image to the right ...

Page 86: ... the keypad rate is 50 mSeconds The keypad rate can be set from a minimum of 50 mSeconds up to a maximum of 1000 mSeconds Use either of the following methods to change the keypad rate Use the up down arrow buttons to change the value in 50 mSecond increments Press the Enter button and use the Virtual Keyboard to directly enter the keypad rate as shown in the image to the right ...

Page 87: ...SP The default setting for Distance Units is Meters use the up down arrow buttons to select from the following preset values Feet Meters Temperature Units The Temperature Units setting is used to set the default temperature units to display on the 120 DSP The default setting for Temperature Units is Celsius use the up down arrow buttons to select from the following preset values Fahrenheit F Celsi...

Page 88: ...fault setting for the job and workorder ID length is 6 Characters The character length can be set from a minimum of 6 characters up to a maximum of 32 characters Use either of the following methods to change the maximum number of characters Use the up down arrow buttons to change the value in one 1 character increments Press the Enter button and use the Virtual Keyboard to directly enter the numbe...

Page 89: ...the Global menu and shows here as Meter Default but can be adjusted per user Use the up down arrow buttons to select from the following languages Meter Default English Spanish Portuguese Chinese Chinese Simplified Japanese If you have other language options available on your instrument you can change the default language You must restart the device before language changes take affect ...

Page 90: ...n the Measure screen use the left right arrow buttons on the keypad to navigate through the list of setup items Measurement Settings Select the Measure button as shown in the image to the right to adjust the measurement settings for the 120 DSP These parameters can be set directly from your instrument or using ViewPoint Express For instructions regarding setup using ViewPoint Express please refer ...

Page 91: ...default setting for the analog noise bandwidth is 4 000 MHz The analog noise bandwidth can be set from a minimum of 0 100 MHz up to a maximum of 9 000 MHz Use either of the following methods to change the analog noise bandwidth Use the up down arrow buttons to change the value in 0 1 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the analog noise bandwidth as ...

Page 92: ...nels with SECAM L modulation The default setting for the optimal modulation is 87 5 The optimal modulation can be set from a minimum of 70 0 up to a maximum of 99 0 Use either of the following methods to change the optimal modulation Use the up down arrow buttons to change the value in 0 1 increments Press the Enter button and use the Virtual Keyboard to directly enter the optimal modulation as sh...

Page 93: ... of 60 0 up to a maximum of 99 0 Use either of the following methods to change the velocity of propagation Use the up down arrow buttons to change the value in 0 1 increments Press the Enter button and use the Virtual Keyboard to directly enter the velocity of propagation as shown in the image to the right Hum Type OPTIONAL The Hum Type setting is used to set the default hum type for testing The d...

Page 94: ...utton as shown in the image to the right to manage channel plans on the 120 DSP From within the Channel Plan screen use the arrow buttons on the keypad to navigate through the list of channels These parameters can be set directly from your instrument or using ViewPoint Express For instructions regarding setup using ViewPoint Express please refer to the ViewPoint Express Operation Manual Channel Pl...

Page 95: ...ile softkey 2 From the File pop up menu select the New button as shown in the image to the right 3 The Continue window will be displayed as shown in the image to the right 4 Select the OK button to continue or select the Cancel button to exit without creating a new channel plan 5 Use the Virtual Keyboard to enter the name of the new channel plan as shown in the image to the right ...

Page 96: ...Plan Perform the following steps to open an existing channel plan 1 Select the File softkey 2 From the File pop up menu select the Open button as shown in the image to the right 3 The Channel Plan window will be displayed as shown below left 4 Select the name of the channel plan that you would like to open 5 The selected channel plan and its channels are displayed as shown below right Use the up d...

Page 97: ... above the location to add the new channel Skip this step when adding the first channel to an empty channel plan 2 Select the Add softkey 3 From the Add pop up menu select from one of four preset channels as shown in the image to the right 4 The new channel will be inserted below the previously highlighted row or as the first channel in the channel plan Removing Channels from a Channel Plan To rem...

Page 98: ... To edit a channel from the channel plan use the up down arrow buttons to highlight the channel to be edited and then Press the Enter button The Edit Channel screen will be displayed as shown to the right Basic Channel Settings From within the Edit Channel screen use the left right arrow buttons on the keypad to navigate through the list of setup items Channel ID The Channel ID setting is used to ...

Page 99: ...tual Keyboard to directly enter the channel name as shown in the image to the right Favorites Selection The Favorites setting is used to select favorite channels for quick access The default setting for Favorites is No use the up down arrow buttons to select from the following preset values Select Yes to add the channel to the favorites list Select No to remove the channel from the favorites list ...

Page 100: ...c Signal Level Meter 1 20 Channel Type The Channel Type setting is used to select the type of channel and available channel settings Use the up down arrow buttons to select from the following types of channels as shown in the images below Single Analog Digital ...

Page 101: ...e following methods to change the center frequency of the channel Use the up down arrow buttons to change the value in 0 050 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the center frequency as shown in the image to the right Single Channel Properties When the Channel Type is set to Single the following settings are available From within the Edit Channel scr...

Page 102: ...ing settings are available From within the Edit Channel screen use the left right arrow buttons on the keypad to navigate through the list of setup items Channel Standard The Channel Standard setting is used to select the analog encoding standard Use the up down arrow buttons to select from the following standards NTSC PAL B I D N M G H K SECAM B L D G H I K ...

Page 103: ...annel The center frequency can be set from a minimum of 50 000 MHz up to a maximum of 999 999 MHz Use either of the following methods to change the center frequency of the channel Use the up down arrow buttons to change the value in 0 050 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the center frequency as shown in the image to the right ...

Page 104: ...channel The bandwidth can be set from a minimum of 0 000 MHz up to a maximum of 8 000 MHz Use either of the following methods to change the bandwidth of the channel Use the up down arrow buttons to change the value in 0 100 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the bandwidth as shown in the image to the right ...

Page 105: ...annel The video frequency can be set from a minimum of 50 000 MHz up to a maximum of 999 999 MHz Use either of the following methods to change the video frequency of the channel Use the up down arrow buttons to change the value in 0 050 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the center frequency as shown in the image to the right ...

Page 106: ...led Select No if the channel is not scrambled Audio Frequency The Audio Frequency setting is used to adjust the audio frequency of the channel The audio frequency can be set from a minimum of 50 000 MHz up to a maximum of 999 999 MHz Use either of the following methods to change the audio frequency of the channel Use the up down arrow buttons to change the value in 0 050 MHz increments Press the E...

Page 107: ...l the following settings are available From within the Edit Channel screen use the left right arrow buttons on the keypad to navigate through the list of setup items Channel Standard The Channel Standard setting is used to select the digital encoding standard Use the up down arrow buttons to select from the following standards Arbitrary Annex A B C ...

Page 108: ...annel The center frequency can be set from a minimum of 50 000 MHz up to a maximum of 999 999 MHz Use either of the following methods to change the center frequency of the channel Use the up down arrow buttons to change the value in 0 050 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the center frequency as shown in the image to the right ...

Page 109: ...channel The bandwidth can be set from a minimum of 0 000 MHz up to a maximum of 8 000 MHz Use either of the following methods to change the bandwidth of the channel Use the up down arrow buttons to change the value in 0 100 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the bandwidth as shown in the image to the right ...

Page 110: ...m of 6 952 MSPS Use either of the following methods to change the symbol rate of the channel Use the up down arrow buttons to change the value in 0 001 MSPS increments Press the Enter button and use the Virtual Keyboard to directly enter the symbol rate as shown in the image to the right Modulation The Modulation setting is used to adjust the modulation type of the channel Use the up down arrow bu...

Page 111: ...OCSIS channel Channel Presets The 120 DSP comes preloaded with four different channel presets After editing custom channels you may find it useful to save your own preset channels Perform the following steps to save new channel presets 1 Use the up down arrow buttons to highlight the channel that you would like to save as a preset 2 Select the Function button and select Preset 3 From the Preset po...

Page 112: ...ternal memory of the 120 DSP Save an Open Channel Plan with a New Name After editing an open channel plan you can save the channel plan with a new name This function is useful for duplicating an existing channel plan Perform the following steps to save the channel plan with a new name 1 Select the File softkey 2 From the File pop up menu select the Save As button as shown in the image to the right...

Page 113: ...and delete limit sets Edit measurement limits From within the Limit Set screen use the arrow buttons on the keypad to navigate through the list of channels These parameters can be set directly from your instrument or using ViewPoint Express For instructions regarding setup using ViewPoint Express please refer to the ViewPoint Express Operation Manual Channel Plans and Limit Sets created modified o...

Page 114: ...ile softkey 2 From the File pop up menu select the New button as shown in the image to the right 3 The Continue window will be displayed as shown in the image to the right 4 Select the OK button to continue or select the Cancel button to exit without creating a new limit set 5 Use the Virtual Keyboard to enter the name of the new limit set as shown in the image to the right ...

Page 115: ... image to the right 3 The Limit Set window will be displayed as shown below left 4 Select the name of the limit set that you would like to open 5 The selected limit set and its thresholds are displayed as shown below right Use the up down arrow buttons to highlight specific thresholds for editing or removal 6 The new limit set will be displayed as shown in the image to the right Use the up down ar...

Page 116: ...deo Level This sets the minimum and maximum analog video channel levels Video Audio Delta This sets the minimum and maximum allowable video to audio level difference Video Delta This sets the maximum difference allowed between the lowest and highest levels measured for the analog video channels Adjacent Level This sets the maximum level variation between any two adjacent video carriers C N Level T...

Page 117: ...ulation 128 QAM MER This sets the minimum MER for digital video channels with 128 QAM Modulation 256 QAM MER This sets the minimum MER for digital video channels with 256 QAM Modulation Pre Bit Error This sets the maximum pre error correction bit errors Post Bit Error This sets the maximum post error correction bit errors Tilt Level This sets the minimum and maximum Tilt level Launch Level This se...

Page 118: ...nstream jitter while performing a VoIP measurement VoIP MOS This sets the minimum upstream downstream MOS Mean Opinion Score while performing a VoIP measurement Upstream Rate This sets the minimum upstream rate while performing a throughput measurement Downstream Rate This sets the minimum downstream transmission rate while performing a throughput measurement Lost Packets This sets the maximum los...

Page 119: ...p down arrow buttons to highlight the limit s to be edited and select the Enter button The Edit Limit screen will be displayed as shown to the right Use the left right arrow buttons to highlight the threshold that you would like to change Use the up down arrow buttons or select the Enter button and use the Virtual Keyboard to enter the threshold ...

Page 120: ...he internal memory of the 120 DSP 3 Use the Virtual Keyboard to enter the new name for the limit set as shown in the image to the right 4 The new limit set will be saved to the internal memory of the 120 DSP Save an Open Limit Set with a New Name After editing an open limit set you can save the limit set with a new name This function is useful for duplicating an existing limit set Perform the foll...

Page 121: ...ill be displayed as shown in the image to the right This screen allows you to modify the Ethernet connection settings From within the Ethernet screen use the left right arrow buttons on the keypad to navigate through the list of setup items These parameters can be set directly from your instrument or using ViewPoint Express For instructions regarding setup using ViewPoint Express please refer to t...

Page 122: ... No to automatically connect using the default network settings IP Mode The IP Mode setting is used to set which type of network connection to establish when logging into a network The default setting for IP mode is IPv4 DHCP use the left right arrow buttons to select from the following preset values Select IPv4 DHCP to automatically obtain an IP address from a DHCP server In this mode the network...

Page 123: ...ss Prefix When IP Mode is set to IPv4 Static the Address Prefix setting is used to set the IP address of the network connection Press the Enter button and the Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter the IP Address in the format ...

Page 124: ...tmask When IP Mode is set to IPv4 Static the Subnet Netmask setting is used to set the subnet address of the network connection Press the Enter button and the Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter the subnet address in the format ...

Page 125: ...oute When IP Mode is set to IPv4 Static the Gateway Route setting is used to set the subnet address of the network connection Press the Enter button and the Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter the gateway address in the format ...

Page 126: ... Mode is set to IPv4 Static the Primary DNS setting is used to set the primary domain name server address of the network connection Press the Enter button and the Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter the primary DNS address in the format ...

Page 127: ...ode is set to IPv4 Static the Secondary DNS setting is used to set the secondary domain name server address of the network connection Press the Enter button and the Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter the secondary DNS address in the format ...

Page 128: ...www trilithic com Page II 72 120 DSP Operation Manual THIS PAGE LEFT INTENTIONALLY BLANK Basic Signal Level Meter 1 20 ...

Page 129: ...and date time saved Export files to USB Delete files Database backup restore Save system logs View Sort From within the File Explorer screen use the arrow buttons on the keypad to navigate through the list of files Select the Sort softkey to sort the file list Select from Name Type Date Time or Size sort types as shown in the image to the right Overview Select the Files icon as shown in the image ...

Page 130: ... the right 3 The Status Bar will indicate a successful backup to the internal memory by displaying the text tmp main db as shown in the image below This internal memory is lost on power down and is only used to clone users on the meter by backing up the database of one user and restoring the database to another user This function is useful when cloning the device settings between users on the same...

Page 131: ... flash drive into the USB flash drive adapter 3 Press the Function button and select the Activate USB Power function as shown in the image to the right 4 The power to the USB flash drive is activated and the drive is now mounted to the file system as shown in the image to the right The 120 DSP is now capable of transferring files to and from the USB flash drive 5 Select the Database softkey 6 From...

Page 132: ...u select the Restore button as shown in the image to the right 3 The entire database will be restored from the internal memory of the 120 DSP 7 The Message Bar will indicate a successful backup to the flash drive by displaying the text media sda1 main db as shown in the image below This function is useful when cloning the device settings between different meters When importing the database file on...

Page 133: ...drive adapter 3 Press the Function button and select the Activate USB Power function as shown in the image to the right 4 The power to the USB flash drive is activated and the drive is now mounted to the file system as shown in the image to the right The 120 DSP is now capable of transferring files to and from the USB flash drive 5 Select the Database softkey 6 From the Database pop up menu select...

Page 134: ...rive adapter into the USB port of the 120 DSP 2 Insert a USB flash drive into the USB flash drive adapter 3 Press the Function button and select the Activate USB Power function as shown in the image to the right 4 The power to the USB flash drive is activated and the drive is now mounted to the file system as shown in the image to the right The 120 DSP is now capable of transferring files to and f...

Page 135: ...ivate USB Power function as shown in the image to the right 9 Remove the USB flash drive and adapter from the meter to clone 10 Login to an existing user or create a new user on the new meter to clone to 11 Insert the USB flash drive adapter and USB flash drive into the USB port of the new meter to clone to 7 The Message Bar will indicate a successful backup to the flash drive by displaying the te...

Page 136: ...e file on your memory stick may be used for all your meters You will not have to export another database file unless there is additional files you want to move 13 The power to the USB flash drive is activated and the drive is now mounted to the file system as shown in the image to the right The 120 DSP is now capable of transferring files to and from the USB flash drive 12 Press the Function butto...

Page 137: ...en insert a USB flash drive into the USB flash drive adapter 3 Press the Function button and select the Activate USB Power function as shown in the image to the right 4 The power to the USB flash drive is activated and the drive is now mounted to the file system as shown in the image to the right The 120 DSP is now capable of transferring files to and from the USB flash drive 5 Select the File sof...

Page 138: ...age to the right 7 From the ViewPoint Files window use the arrow buttons to highlight the file you would like to import 8 A confirmation window will be displayed as shown in the image to the right If you have existing ViewPoint files on the meter it will ask if you want to replace them 9 Select the Yes button to import the file and replace existing files or select No to keep the existing package f...

Page 139: ...3 Press the Function button and select the Activate USB Power function as shown in the image to the right 4 The power to the USB flash drive is activated and the drive is now mounted to the file system as shown in the image to the right The 120 DSP is now capable of transferring files to and from the USB flash drive 5 Use the arrow buttons to highlight the file that you would like to export 6 Sele...

Page 140: ...0 8 The Message Bar will indicate a successful export to the flash drive by displaying the text Export media sda1 file_name as shown in the image to the right 9 Later when you are ready to import you will see the file listed in the ViewPoint files on the USB flash drive as shown here ...

Page 141: ...ve into the USB flash drive adapter 3 Press the Function button and select the Activate USB Power function as shown in the image to the right 4 The power to the USB flash drive is activated and the drive is now mounted to the file system as shown in the image to the right The 120 DSP is now capable of transferring files to and from the USB flash drive 5 Select the File softkey 6 From the File pop ...

Page 142: ...he image to the right 8 Select the Yes button to name the export file or select No to use the date for the filename 9 Use the Virtual Keyboard to enter the name of the new export file as shown in the image to the right 10 Later when you are ready to import you will see the file listed in the ViewPoint files on the USB flash drive as shown here ...

Page 143: ... the 120 DSP 1 Use the arrow buttons to highlight the file you want to delete 2 Select the File softkey 3 From the File pop up menu select the Delete button as shown in the image to the right 4 The Continue window will be displayed as shown in the image to the right 5 Select the OK button to delete the file or select the Cancel button to exit without deleting the file ...

Page 144: ... repair center troubleshooting Perform the following steps to save the 120 DSP log file to the internal memory of the 120 DSP 1 Select the Save Log softkey 2 The Message Bar will indicate a successful save to the internal memory of the 120 DSP by displaying the text tmp slm360log txt as shown in the image to the right To save a log file the Operating Level setting must be set to Logging see Sectio...

Page 145: ...er into the USB port of the 120 DSP 2 Then insert a USB flash drive into the USB flash drive adapter 3 Press the Function button and select the Activate USB Power function as shown in the image to the right 4 The power to the USB flash drive is activated and the drive is now mounted to the file system as shown in the image to the right The 120 DSP is now capable of transferring files to and from t...

Page 146: ...u Options Additional functions can be accessed from within the File Explorer screen by pressing the Function button The Function menu will be displayed as shown in the image to the right and includes the following functions specifically for the File Explorer screen Deactivate USB Power This function is used to deactivate power to the USB flash drive inserted into the USB port of the 120 DSP The US...

Page 147: ...own in the image to the right This screen allows you to perform a firmware update Before performing a firmware update you must accept the End User License Agreement EULA by selecting the Accept softkey Firmware Updates Chapter 5 Overview Select the Update FW icon as shown in the image to the right to update the firmware of the 120 DSP ...

Page 148: ...wn in the image to the right 4 Once you have selected the firmware file for download select the Download softkey as shown in the image to the right to download the firmware file 5 The download progress will be displayed in the activity area of the Update Firmware screen as shown in the image to the right 6 Once the download has finished the new firmware information will be displayed as shown in th...

Page 149: ...ccept softkey 4 From the Accept pop up menu select the USB Firmware button as shown in the image to the right 5 The Selected Firmware window will be displayed as shown to the right Press the Enter button to select the firmware file that you would like to use 6 Once the file has been transferred from the USB flash drive the new firmware information will be displayed as shown in the image to the rig...

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Page 151: ...www trilithic com 120 DSP Basic Signal Level Meter Section III Autotest Menu ...

Page 152: ...www trilithic com Page III 2 120 DSP Operation Manual THIS PAGE LEFT INTENTIONALLY BLANK Basic Signal Level Meter 1 20 ...

Page 153: ...vide you with instructions on how to utilize the functions available in the Autotest menu of the instrument including Manage Jobs Manage Autotests Overview Chapter 1 Autotests can only be created using the ViewPoint Express PC Configuration Software or ViewPoint Integrated Server Package with WFM Module The CalCheck and Home Cert Autotests are included by default from the factory When autotests ar...

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Page 155: ...in the image to the right This screen allows you to perform the following actions Create new jobs Open existing jobs Close existing jobs Delete existing jobs From within the Job Management screen use the arrow buttons on the keypad to navigate through the list of jobs Overview Select the Jobs icon as shown in the image to the right to manage jobs on the 120 DSP ...

Page 156: ...job The new job will be displayed in the Job Management screen as shown in the image below right If you don t enter a name for the job the default job name will follow the format wYYYYMMDDHHMMSS By default the Channel Plan field will be populated with the last used channel plan provided that it still exists on the instrument The Continue window will be displayed as shown in the image to the right ...

Page 157: ...the image to the right Select the OK button to close the job or select the Cancel button to exit without closing the job After selecting the OK button or if the job has already been completed the Virtual Keyboard will be displayed as shown in the image below left If the job is incomplete use the Virtual Keyboard enter any comments for the job The Job Management screen will automatically refresh to...

Page 158: ...Basic Signal Level Meter 1 20 Open a Closed Job From the Job Management screen select the Open softkey to open the highlighted job The Job Management screen will automatically refresh to display the open status of the job as shown in the image to the right ...

Page 159: ...ct the Delete Job button from the Function menu as shown in the image to the right The Job Management screen will automatically refresh to remove the deleted job as shown in the image to the right The Continue window will be displayed as shown in the image to the right Select the OK button to delete the job or select the Cancel button to exit without deleting the job ...

Page 160: ...d like to change the channel plan for as shown in the image to the right Function Menu Options Additional functions can be accessed from within the Autotest screen by pressing the Function button The Function menu will be displayed as shown in the image to the right and includes the following functions specifically for the Autotest screen For details on how to delete a job see the Deleting An Exis...

Page 161: ...n window will be displayed as shown in the image below left Select the name of the channel plan that you would like to assign to the selected job If there is only one channel plan on the 120 DSP the Channel Plan window will be skipped and that channel plan will automatically be assigned to the channel plan Once you have selected the channel plan the Job Management screen will automatically refresh...

Page 162: ...tion is used to change the comments of the selected job Highlight the job that you would like to change the comments for as shown in the image to the right Press the Function button Select the Change Comment button from the Function menu as shown in the image to the right Changing Comments of an Existing Job This function is used to change the comments of the selected job Highlight the job that yo...

Page 163: ...ute an Autotest on the 120 DSP The Autotest screen will be displayed as shown in the image to the right This screen allows you execute autotests at multiple locations for each job on the 120 DSP The Autotest screen displays the Autotest Name Job Channel Plan and Tech ID above the test locations If a job hasn t been opened the Job Management window will be displayed Choose the job that you would li...

Page 164: ...Required This is displayed when the location is required and can only be tested once Required This is displayed when the location is required and can be tested more than once Location Pass Fail Indicators Each location will display a pass fail indicator as shown in the following section Channel Plans and Limit Sets created modified on the 120 DSP can only be used in the Troubleshooting menu Autote...

Page 165: ...ected autotest will not be displayed and cannot be executed A Pass Fail status will be displayed below each test location When any of the individual measurement parameters of an autotest location fail the location as a whole will indicate a Fail status Each individual location will indicate its status using the following icons This icon indicates that this autotest has not been executed at this lo...

Page 166: ... displayed along with detailed measurement results for each test Any failed tests will be displayed with red text as shown in the image to the right When the Autotest is complete press the Back button to exit A notice screen will be displayed as shown in the image to the right Select the OK button to save the test results or select the Cancel button to exit without saving the test results If you s...

Page 167: ...Error and Modem Launch Levels Spectrum Test This measurement performs a return spectrum test and compares the results to the selected limit set This test includes Maximum Ingress Level A Pass Fail status will be displayed at the top of the results screen along with detailed test results for each test When any of the individual measurement parameters of a test fail the test as a whole will indicate...

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Page 169: ...www trilithic com 120 DSP Basic Signal Level Meter Section IV Troubleshoot Menu ...

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Page 171: ... DSP enables you to troubleshoot installation issues using the functions within this menu This section will provide you with instructions on how to utilize the functions available in the Troubleshoot menu of the instrument including Level Measurement Analog Digital Hum OPTIONAL Channel Plan Scan Spectrum Analysis Return Spectrum Analysis 4 to 110 MHz Forward Spectrum Analysis 50 to 1000 MHz OPTION...

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Page 173: ...s screen allows you to perform measurements on the following types of channels Analog right NTSC PAL B I D N M G H K SECAM B L D G H I K Digital bottom left Annex A B C 16 32 64 128 256 QAM Single Carrier bottom right Level Measurement Chapter 2 Overview Select the Level icon as shown in the image to the right to perform channel measurements on the 120 DSP ...

Page 174: ...level measurement Select the Open button from the Channel Plan pop up menu and the Channel Plan window will be displayed as shown in the image to the right From the Channel Plan window select the name of the channel plan to use for the level measurement After selecting the channel plan the Level screen will be displayed again The Channel Plan window will be bypassed if there is only one channel pl...

Page 175: ...e to the right From the Limit Set window select the name of the limit set to use for the level measurement After selecting the limit set the Level screen will be displayed again Opening a Limit Set Select the Limit Set softkey as shown in the image to the right to select the limit set to use for the level measurement The Limit Set window will be bypassed if there is only one limit set to choose fr...

Page 176: ... 20 Removing a Limit Set Select the Limit Set softkey as shown in the image to the right to remove limits set for the level measurement Select the Remove button from the Limit Set pop up menu and the pass fail results will no longer be displayed as shown in the image to the right ...

Page 177: ...ach individual measurement parameter will indicate its status using the following icons This icon indicates that this measurement is currently being performed and you must wait for it to be completed This icon indicates that this measurement was skipped This only applies to measurements that have been removed from the currently selected limit set This icon indicates that this measurement is within...

Page 178: ...adjustable Vertical Scale adjustable Channel Number adjustable Channel Name Video Center Frequency adjustable Audio Center Frequency adjustable Display Type adjustable Measurement Results The following measurement results are displayed with a pass fail status for each measurement that is included in the open limit set Video level value with bar graph Audio level value with bar graph Video Audio de...

Page 179: ... value displayed on the bar graph Highlight the reference level field as shown in the image to the right and then use either of the following methods to change the reference level Use the up down arrow buttons to change the reference level in 1 dBmV increments Press the Enter button and use the Virtual Keyboard to directly enter the reference level as shown in the image to the right ...

Page 180: ...to select from a vertical scale of 1 2 5 or 10 dB div Channel Adjustment Highlight the channel field as shown in the image to the right and then use either of the following methods to change the channel number Use the up down arrow buttons to change the channel number in 1 channel increments Press the Enter button and use the Virtual Keyboard to directly enter the channel number as shown in the im...

Page 181: ...requency field as shown in the image to the right and then use either of the following methods to change the video frequency Use the up down arrow buttons to change the video frequency in 0 050 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the video frequency as shown in the image to the right ...

Page 182: ...requency field as shown in the image to the right and then use either of the following methods to change the audio frequency Use the up down arrow buttons to change the audio frequency in 0 050 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the audio frequency as shown in the image to the right ...

Page 183: ...plays Bar Graph Select the Level button from the Display pop up menu to display a bar graph of the video and audio carrier levels of the analog video carrier The following measurement results are displayed with a pass fail status for each measurement that is included in the open limit set Video level value with bar graph Audio level value with bar graph Video Audio delta value C N value ...

Page 184: ...terference present on the video carrier of a single selected analog channel Select the Hum button from the Display pop up menu to display a bar graph of the HUM levels of the analog channel The following measurement results are displayed with a pass fail status for each measurement that is included in the open limit set 60 Hz level value with bar graph 120 Hz level value with bar graph 1 kHz low f...

Page 185: ...d Spectrum display directly from the Level measurement screen Select the Goto Spectrum button from the Display pop up menu to display the Forward Spectrum screen The Forward Spectrum screen provides the ability to view raw spectrum traces for the forward path from 50 to 1000 MHz with DSP spectrum snapshots to give a view of any downstream channels For more information on Forward Spectrum see Chapt...

Page 186: ...Plan Scan display directly from the Level measurement screen Select the Goto Scan button from the Display pop up menu to display the Channel Plan Scan screen The Channel Plan Scan screen allows you to perform a scan of all of the channels in the current channel plan For more information on Channel Plan Scan see Chapter 3 Channel Plan Scan later in this section ...

Page 187: ...el screen will display the following information based on the settings of the current channel plan Reference Level adjustable Vertical Scale adjustable Channel Number adjustable Channel Name Digital Video Frequency adjustable Channel Bandwidth adjustable Modulation Type adjustable Channel Standard adjustable Symbol Rate adjustable Display Type adjustable ...

Page 188: ...erence level field as shown in the image to the right and then use either of the following methods to change the reference level Use the up down arrow buttons to change the reference level in 1 dBmV increments Press the Enter button and use the Virtual Keyboard to directly enter the reference level as shown in the image to the right The Reference Level adjustment is only available when the measure...

Page 189: ...div Channel Adjustment Highlight the channel field as shown in the image to the right and then use either of the following methods to change the channel number Use the up down arrow buttons to change the channel number in 1 channel increments Press the Enter button and use the Virtual Keyboard to directly enter the channel number as shown in the image to the right The Vertical Scale adjustment is ...

Page 190: ...requency field as shown in the image to the right and then use either of the following methods to change the video frequency Use the up down arrow buttons to change the digital video frequency in 0 050 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the digital video frequency as shown in the image to the right ...

Page 191: ...wing methods to change the frequency Use the up down arrow buttons to change the bandwidth in 0 1 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the bandwidth as shown in the image to the right Modulation Type Adjustment Highlight the modulation type field as shown in the image to the right Then use the up down arrow buttons to select QPSK 16 QAM 32 QAM 64 QAM...

Page 192: ...w buttons to select Arbitrary Annex A Annex B or Annex C Symbol Rate Adjustment Highlight the symbol rate field as shown in the image to the right and then use either of the following methods to change the symbol rate Use the up down arrow buttons to change the rate in 0 001 MSPS increments Press the Enter button and use the Virtual Keyboard to directly enter the bandwidth as shown in the image to...

Page 193: ...h the following types measurement displays Bar Graph Select the Level button from the Display pop up menu to display a bar graph of the digital video carrier The following measurement results are displayed with a pass fail status for each measurement that is included in the open limit set Digital channel level value with bar graph Pre BER Post BER MER ...

Page 194: ... status for each measurement that is included in the open limit set Digital channel level value with constellation diagram Pre BER Post BER MER Equalizer Tap Select the Equalizer button from the Display pop up menu to display the equalizer stress and whether the DOCSIS specification is being broken The following measurement results are displayed with a pass fail status for each measurement that is...

Page 195: ...level value with bar graph Pre BER Post BER MER HUM OPTIONAL When activated in a 120 DSP the HUM feature provides users with the ability to measure the amplitude of the 50 60 Hz 100 120 Hz and low frequency interference present on the QAM carrier of a single selected digital channel Select the Hum button from the Display pop up menu to display a bar graph of the HUM levels of the QAM channel The f...

Page 196: ...d Spectrum display directly from the Level measurement screen Select the Goto Spectrum button from the Display pop up menu to display the Forward Spectrum screen The Forward Spectrum screen provides the ability to view raw spectrum traces for the forward path from 50 to 1000 MHz with DSP spectrum snapshots to give a view of any downstream channels For more information on Forward Spectrum see Chapt...

Page 197: ...Plan Scan display directly from the Level measurement screen Select the Goto Scan button from the Display pop up menu to display the Channel Plan Scan screen The Channel Plan Scan screen allows you to perform a scan of all of the channels in the current channel plan For more information on Channel Plan Scan see Chapter 3 Channel Plan Scan later in this section ...

Page 198: ...adjustable Channel Name Center Frequency adjustable Reference Level Adjustment The reference level can be adjusted from 40 to 60 dBmV and is the highest value displayed on the bar graph Highlight the reference level field as shown in the image to the right and then use either of the following methods to change the reference level Use the up down arrow buttons to change the reference level in 1 dBm...

Page 199: ...to select from a vertical scale of 1 2 5 or 10 dB div Channel Adjustment Highlight the channel field as shown in the image to the right and then use either of the following methods to change the channel number Use the up down arrow buttons to change the channel number in 1 channel increments Press the Enter button and use the Virtual Keyboard to directly enter the channel number as shown in the im...

Page 200: ...requency field as shown in the image to the right and then use either of the following methods to change the center frequency Use the up down arrow buttons to change the center frequency in 0 050 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the center frequency as shown in the image to the right ...

Page 201: ...plays Bar Graph Select the Level button from the Display pop up menu to display a bar graph of the video and audio carrier levels of the analog video carrier The following measurement results are displayed with a pass fail status for each measurement that is included in the open limit set Video level value with bar graph Audio level value with bar graph Video Audio delta value C N value ...

Page 202: ...ncy interference present on the video carrier of a single selected analog channel Select the Hum button from the Display pop up menu to display a bar graph of the HUM levels of the analog channel The following measurement results are displayed with a pass fail status for each measurement that is included in the open limit set 60 Hz level value with bar graph 120 Hz level value with bar graph 1 kHz...

Page 203: ...d Spectrum display directly from the Level measurement screen Select the Goto Spectrum button from the Display pop up menu to display the Forward Spectrum screen The Forward Spectrum screen provides the ability to view raw spectrum traces for the forward path from 50 to 1000 MHz with DSP spectrum snapshots to give a view of any downstream channels For more information on Forward Spectrum see Chapt...

Page 204: ...Plan Scan display directly from the Level measurement screen Select the Goto Scan button from the Display pop up menu to display the Channel Plan Scan screen The Channel Plan Scan screen allows you to perform a scan of all of the channels in the current channel plan For more information on Channel Plan Scan see Chapter 3 Channel Plan Scan later in this section ...

Page 205: ... by pressing the Function button The Function menu will be displayed as shown in the image to the right and includes the following functions specifically for the Level screen Save Data Log Select the Save Data Log button from the Function menu to save a copy of the measurement result data log If you have an open job you can also save the test to the job by selecting Yes ...

Page 206: ...iple open jobs the Job Management window will be displayed Choose the job you would like to save the log to If you don t want to save the test to the open job select No and you will be prompted to enter a file name using the Virtual Keyboard It will then be saved to the internal memory of the 120 DSP ...

Page 207: ...test point and probe loss The Test Point screen will be displayed as shown in the image to the right Test Point Loss Highlight the Test Point field and then use either of the following methods to change the loss value Use the up down arrow buttons to change the test point loss level in 1 dB increments Press the Enter button and use the Virtual Keyboard to directly enter the loss value as shown in ...

Page 208: ... Highlight the Probe field and then use either of the following methods to change the loss value Use the up down arrow buttons to change the probe loss level in 1 dB increments Press the Enter button and use the Virtual Keyboard to directly enter the loss value as shown in the image to the right ...

Page 209: ...on Manual Basic Signal Level Meter 1 20 Save Preset Select the Save button to save the test point values as a preset The Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter a name for the preset ...

Page 210: ... button to return to the Level screen The total test point compensation value will be displayed to the right of the channel number as shown in the image to the right Load Preset Select the Load button to load the test point values preset If you have multiple presets the Test Point Presets window will be displayed Choose the preset you would like to load ...

Page 211: ...20 DSP Operation Manual Basic Signal Level Meter 1 20 Auto Range Select the Auto Range button from the Function menu to quickly bring off scale signals onscreen by automatically adjusting the reference level and vertical resolution ...

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Page 213: ...can Chapter 3 The Channel Plan Scan screen will be displayed as shown in the images to the right This screen allows you to perform a scan of all of the channels in the current channel plan Overview Select the Scan icon as shown in the image to the right to perform a channel plan scan on the 120 DSP ...

Page 214: ...l plan scan Select the Open button from the Channel Plan pop up menu and the Channel Plan window will be displayed as shown in the image to the right From the Channel Plan window select the name of the channel plan to use for the channel plan scan After selecting the channel plan the Channel Plan Scan screen will be displayed again The Channel Plan window will be bypassed if there is only one chan...

Page 215: ...he right From the Limit Set window select the name of the limit set to use for the channel plan scan After selecting the limit set the Channel Plan Scan screen will be displayed again Opening a Limit Set Select the Limit Set softkey as shown in the image to the right to select the limit set to use for the channel plan scan The Limit Set window will be bypassed if there is only one limit set to cho...

Page 216: ...20 Removing a Limit Set Select the Limit Set softkey as shown in the image to the right to remove the limits set for the channel plan scan Select the Remove button from the Limit Set pop up menu and the pass fail results will no longer be displayed as shown in the image to the right ...

Page 217: ...ndicate a Fail status When the Results button is selected from the Function menu the following results are displayed each individual measurement parameter will indicate its status and uses the following icons This icon indicates that this measurement was skipped This only applies to measurements that have been removed from the currently selected limit set This icon indicates that this measurement ...

Page 218: ...lid gray bar Display Type Adjustment Select the Display softkey to scroll through the following types measurement displays Measurement Results The Tilt measurement results are displayed with a pass fail status when Tilt limits are included in the open limit set Mini View Select the Mini View button from the Display pop up menu to display the level of your favorites channels in the channel plan sca...

Page 219: ...nel plan scan Go to Level The Go to Level feature provides the ability to go to the Level measurement display directly from the Channel Plan Scan screen Select the Goto Level button from the Display pop up menu to display the Level screen The Level screen allows you to perform various types of channel measurements For more information on Level measurement see Chapter 2 Level Measurement earlier in...

Page 220: ...to the right and then use either of the following methods to change the reference level Use the up down arrow buttons to change the reference level in 1 dBmV increments Press the Enter button and use the Virtual Keyboard to directly enter the reference level as shown in the image to the right Vertical Scale Adjustment Highlight the vertical scale field as shown in the image to the right Then use t...

Page 221: ... vertical lines and text Marker 1 Purple Marker 2 Light Blue Highlight the desired marker and use either of the following methods to change the marker location Use the up down arrow buttons to change the marker in 1 channel increments Press the Enter button and use the Virtual Keyboard to directly enter the channel number as shown in the image below The following information is displayed for each ...

Page 222: ... by pressing the Function button The Function menu will be displayed as shown in the image to the right and includes the following functions specifically for the Channel Plan Scan screen Save Data Log Select the Save Data Log button from the Function menu to save a copy of the measurement result data log If you have an open job you can also save the test to the job by selecting Yes ...

Page 223: ...iple open jobs the Job Management window will be displayed Choose the job you would like to save the log to If you don t want to save the test to the open job select No and you will be prompted to enter a file name using the Virtual Keyboard It will then be saved to the internal memory of the 120 DSP ...

Page 224: ... 1 20 Hide Marker Bar Select the Hide Marker Bar button from the Function menu to hide the marker bar at the bottom of the screen and expand the measurement viewing area When the marker bar is hidden select the Show Marker Bar button from the Function menu to show the marker bar ...

Page 225: ...test point and probe loss The Test Point screen will be displayed as shown in the image to the right Test Point Loss Highlight the Test Point field and then use either of the following methods to change the loss value Use the up down arrow buttons to change the test point loss level in 1 dB increments Press the Enter button and use the Virtual Keyboard to directly enter the loss value as shown in ...

Page 226: ... Highlight the Probe field and then use either of the following methods to change the loss value Use the up down arrow buttons to change the probe loss level in 1 dB increments Press the Enter button and use the Virtual Keyboard to directly enter the loss value as shown in the image to the right ...

Page 227: ...on Manual Basic Signal Level Meter 1 20 Save Preset Select the Save button to save the test point values as a preset The Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter a name for the preset ...

Page 228: ...ss the Back button to return to the Channel Plan Scan screen The total test point compensation value will be displayed as shown in the image to the right Load Preset Select the Load button to load the test point values preset If you have multiple presets the Test Point Presets window will be displayed Choose the preset you would like to load ...

Page 229: ...o Range button from the Function menu to quickly bring off scale signals onscreen by automatically adjusting the reference level and vertical resolution The Results button in the Function menu was covered previously For more information see the Pass Fail Measurement Indications section earlier in this chapter ...

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Page 231: ... traces from 4 to 110 MHz with DSP spectrum snapshots to give the user a view of any upstream channels Advanced Spectrum Analysis OPTIONAL Forward Spectrum Analysis is an optional advanced feature on the 120 DSP When the Icon shown to the left is displayed on the Troubleshoot menu your 120 DSP is equipped for both Forward and Return Spectrum Analysis When activated in a 120 DSP this feature provid...

Page 232: ...ctrum Measurement Select the Mode softkey and choose Return as shown in the image to the right The Return Spectrum screen provide users with the ability to view raw spectrum traces for the forward path from 4 to 110 MHz with DSP spectrum snapshots to give the user a view of any upstream channels ...

Page 233: ...From the Limit Set window select the name of the limit set to use for the return spectrum measurement After selecting the limit set the Return Spectrum screen will be displayed again Opening a Limit Set Select the Limit Set softkey as shown in the image to the right to select the limit set to use for the return spectrum measurement The Limit Set window will be bypassed if there is only one limit s...

Page 234: ...emoving a Limit Set Select the Limit Set softkey as shown in the image to the right to remove limits sets for the return spectrum measurement Select the Remove button from the Limit Set pop up menu and the pass fail results will no longer be displayed as shown in the image to the right ...

Page 235: ...screen The pass fail status of the return spectrum ingress will be indicated using the following icons This icon indicates that this measurement was skipped This only applies to measurements that have been removed from the currently selected limit set This icon indicates that this measurement is within the high limit measurement thresholds for the return spectrum Ingress measurement This icon indi...

Page 236: ...erence level field as shown in the image to the right and then use either of the following methods to change the reference level Use the up down arrow buttons to change the reference level in 1 dBmV increments Press the Enter button and use the Virtual Keyboard to directly enter the reference level as shown in the image to the right If the red Overload message appears as shown in the image above s...

Page 237: ...t from a vertical scale of 1 2 5 or 10 dB div Stop Frequency Adjustment Highlight the stop frequency field as shown in the image to the right and then use either of the following methods to change the stop frequency Use the up down arrow buttons to select from a stop frequency of 42 65 85 or 110 MHz Press the Enter button and use the Virtual Keyboard to directly enter the stop frequency as shown i...

Page 238: ...ion Use the up down arrow buttons to change the marker in 0 200 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the frequency as shown in the image below The following information is displayed for the markers Level Displays the signal level at the specified frequency for each marker Frequency Delta Displays the frequency delta between the two markers Frequency ...

Page 239: ...d the blue peak hold trace will start to appear on the screen over the green live trace To reset the peak hold trace select the Peak Hold softkey again and then select the Reset button from the Peak Hold pop up menu The blue peak hold trace will momentarily disappear and then start again To turn of the peak hold trace select the Peak Hold softkey again and then select the Off button from the Peak ...

Page 240: ... by pressing the Function button The Function menu will be displayed as shown in the image to the right and includes the following functions specifically for the Return Spectrum screen Save Data Log Select the Save Data Log button from the Function menu to save a copy of the measurement result data log If you have an open job you can also save the test to the job by selecting Yes ...

Page 241: ...iple open jobs the Job Management window will be displayed Choose the job you would like to save the log to If you don t want to save the test to the open job select No and you will be prompted to enter a file name using the Virtual Keyboard It will then be saved to the internal memory of the 120 DSP ...

Page 242: ... 1 20 Hide Marker Bar Select the Hide Marker Bar button from the Function menu to hide the marker bar at the bottom of the screen and expand the measurement viewing area When the marker bar is hidden select the Show Marker Bar button from the Function menu to show the marker bar ...

Page 243: ...test point and probe loss The Test Point screen will be displayed as shown in the image to the right Test Point Loss Highlight the Test Point field and then use either of the following methods to change the loss value Use the up down arrow buttons to change the test point loss level in 1 dB increments Press the Enter button and use the Virtual Keyboard to directly enter the loss value as shown in ...

Page 244: ... Highlight the Probe field and then use either of the following methods to change the loss value Use the up down arrow buttons to change the probe loss level in 1 dB increments Press the Enter button and use the Virtual Keyboard to directly enter the loss value as shown in the image to the right ...

Page 245: ...on Manual Basic Signal Level Meter 1 20 Save Preset Select the Save button to save the test point values as a preset The Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter a name for the preset ...

Page 246: ...ess the Back button to return to the Return Spectrum screen The total test point compensation value will be displayed as shown in the image to the right Load Preset Select the Load button to load the test point values preset If you have multiple presets the Test Point Presets window will be displayed Choose the preset you would like to load ...

Page 247: ...asurement OPTIONAL Select the Mode softkey and choose Forward as shown in the image to the right The Forward Spectrum screen provides users with the ability to view raw spectrum traces for the forward path from 50 to 1000 MHz with DSP spectrum snapshots to give the user a view of any downstream channels ...

Page 248: ...erence level field as shown in the image to the right and then use either of the following methods to change the reference level Use the up down arrow buttons to change the reference level in 1 dBmV increments Press the Enter button and use the Virtual Keyboard to directly enter the reference level as shown in the image to the right If the red Overload message appears as shown in the image above s...

Page 249: ...in the image below left and then use either of the following methods to change the start frequency Use the up down arrow buttons to adjust the frequency in 0 1 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the start frequency as shown in the image below right Vertical Scale Adjustment Highlight the vertical scale field as shown in the image to the right Then ...

Page 250: ... up down arrow buttons to set it to Start Stop Highlight the Stop frequency field as shown in the image to the right and then use either of the following methods to change the stop frequency Use the up down arrow buttons to adjust the frequency in 0 1 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the stop frequency as shown in the image to the right ...

Page 251: ...se the up down arrow buttons to set it to Center Span Highlight the Center frequency field as shown in the image below left and then use either of the following methods to change the frequency Use the up down arrow buttons to adjust the frequency in 0 1 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the frequency as shown in the image below right ...

Page 252: ...e the up down arrow buttons to set it to Center Span Highlight the Center frequency field as shown in the image below left and then use either of the following methods to change the frequency Use the up down arrow buttons to adjust the frequency in 0 1 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the frequency as shown in the image below right ...

Page 253: ... Use the up down arrow buttons to change the marker in 0 200 MHz increments Press the Enter button and use the Virtual Keyboard to directly enter the frequency as shown in the image to the right The following information is displayed for the markers Level Displays the signal level at the specified frequency for each marker Frequency Delta Displays the frequency delta between the two markers Freque...

Page 254: ...or types for the forward spectrum measurement Maximum Select the Maximum button from the Detector pop up menu to display the maximum level of the forward spectrum as a blue trace that appears on the screen over the green live trace Average Select the Average button from the Detector pop up menu to display the average level of the forward spectrum as a green trace ...

Page 255: ...on from the Detector pop up menu to display the normal live level of the forward spectrum as a green trace Display Zoom Select the Zoom softkey to choose from the following zoom options To Markers Changes the start and stop frequency values to match the currently displayed marker frequency values Zoom Out This is used after zooming to markers and returns the start and stop frequencies to their pre...

Page 256: ... by pressing the Function button The Function menu will be displayed as shown in the image to the right and includes the following functions specifically for the Forward Spectrum screen Save Data Log Select the Save Data Log button from the Function menu to save a copy of the measurement result data log If you have an open job you can also save the test to the job by selecting Yes ...

Page 257: ...iple open jobs the Job Management window will be displayed Choose the job you would like to save the log to If you don t want to save the test to the open job select No and you will be prompted to enter a file name using the Virtual Keyboard It will then be saved to the internal memory of the 120 DSP ...

Page 258: ... 1 20 Hide Marker Bar Select the Hide Marker Bar button from the Function menu to hide the marker bar at the bottom of the screen and expand the measurement viewing area When the marker bar is hidden select the Show Marker Bar button from the Function menu to show the marker bar ...

Page 259: ...test point and probe loss The Test Point screen will be displayed as shown in the image to the right Test Point Loss Highlight the Test Point field and then use either of the following methods to change the loss value Use the up down arrow buttons to change the test point loss level in 1 dB increments Press the Enter button and use the Virtual Keyboard to directly enter the loss value as shown in ...

Page 260: ... Highlight the Probe field and then use either of the following methods to change the loss value Use the up down arrow buttons to change the probe loss level in 1 dB increments Press the Enter button and use the Virtual Keyboard to directly enter the loss value as shown in the image to the right ...

Page 261: ...on Manual Basic Signal Level Meter 1 20 Save Preset Select the Save button to save the test point values as a preset The Virtual Keyboard will be displayed as shown in the image to the right Use the Virtual Keyboard to enter a name for the preset ...

Page 262: ...ess the Back button to return to the Forward Spectrum screen The total test point compensation value will be displayed as shown in the image to the right Load Preset Select the Load button to load the test point values preset If you have multiple presets the Test Point Presets window will be displayed Choose the preset you would like to load ...

Page 263: ...om the Function menu to save a forward spectrum favorite The Save New Favorite window will be displayed as shown in the image to the right Select the OK button to save the favorite or select the Cancel button to exit without saving The Virtual Keyboard will be displayed Use the Virtual Keyboard to enter the name of the new favorite ...

Page 264: ...l Basic Signal Level Meter 1 20 Load Favorite Select the Load Favorite button from the Function menu to load a forward spectrum favorite The Sprectrum Presets window will be displayed as shown in the image to the right Choose the preset you want to load ...

Page 265: ...e to the right This screen displays a measurement bar graph specific to the type of measurement along with relevant measurement values The Network Test Suite is a standard feature of the 120 DSP that is used to perform network tests and includes Ping Trouceroute and Throughput tests Select the Net Tests icon as shown in the image to the right to perform network tests using the 120 DSP ...

Page 266: ... com Page IV 98 120 DSP Operation Manual Basic Signal Level Meter 1 20 Selecting the Test Mode Select the Mode softkey to choose from the following network tests Ping Throughput Traceroute Ping Throughput Traceroute ...

Page 267: ... as shown in the image to the right After selecting the Done softkey a confirmation window will be displayed as shown in the image to the right Select the OK button to save the location to your favorites or select the Cancel button to accept the changes without saving to your favorites Then press the Enter button and use the Virtual Keyboard to directly enter the IP address as shown in the image t...

Page 268: ...avorites softkey to view a list of up to six 6 favorite destination IP addresses From the Favorites pop up menu select the name of the favorite to use for testing The IP address or URL of the selected location will be entered automatically in the IP field Executing Network Tests After entering a destination IP address or selecting a favorite select the Start key to execute the selected test The 12...

Page 269: ...kets Maximum Time This is the maximum time required to send receive a single test packet Sent This is the number of packets sent by the 120 DSP to the destination IP address Received This is the number of packets received by the 120 DSP from the destination IP address LPR This is the lost packet ratio This measurement is displayed in the bar graph and as a numeric value The LPR is calculated as th...

Page 270: ...the ping test highlight the Number of Packets field as shown in the image to the right and then use either of the following methods to change the packet number Use the up down arrow buttons to adjust the number in 1 packet increments Press the Enter button and use the Virtual Keyboard to directly enter the number of packets as shown in the image to the right ...

Page 271: ...tons to adjust the rate in 1 Mbps increments Press the Enter button and use the Virtual Keyboard to directly enter the target downstream rate as shown in the image to the right Throughput Mode When the Throughput mode is selected the following measurement results are displayed as shown in the image to the right Target Up Rate This is the up stream data rate This measurement is displayed in the bar...

Page 272: ...onding intermediary point hop Name This is the name of the corresponding intermediary point hop Time This is the time to each intermediary point hop Setting the ACTS Port To manually enter the ACTS server port for the throughput test highlight the ACTS Port field as shown in the image to the right and then use either of the following methods to change the port Use the up down arrow buttons to adju...

Page 273: ...lect the name of the limit set to use for the network testing After selecting the limit set the Network Tests screen will be displayed again Opening a Limit Set Select the Open Limit Set button in the Function menu as shown in the image to the right to select the limit set to use for the network testing The Limit Set window will be bypassed if there is only one limit set to choose from ...

Page 274: ...nal Level Meter 1 20 Removing a Limit Set Select the Remove Limit Set button in the Function menu as shown in the image to the right to remove the limit set for the network testing The pass fail results will no longer be displayed as shown in the image to the right ...

Page 275: ...ment parameter The pass fail status of the network tests will be indicated using the following icons This icon indicates that this measurement was skipped This only applies to measurements that have been removed from the currently selected limit set This icon indicates that this measurement is within the measurement thresholds of the currently selected limit set This icon indicates that the measur...

Page 276: ...surement result data log Function Menu Options Additional functions can be accessed from within the Network Tests screen by pressing the Function button The Function menu will be displayed as shown in the image to the right and includes the following functions specifically for the Network Tests screen If you have an open job you can also save the test to the job by selecting Yes ...

Page 277: ...tiple open jobs the Job Management window will be displayed Choose the job you would like to save the log to If you don t want to save the test to the open job select No and you will be prompted to enter a file name using the Virtual Keyboard It will then be saved to the internal memory of the 120 DSP ...

Page 278: ... Function menu to delete any one of the six available favorites The Favorites window will be displayed as shown in the image to the right Select the name of the favorite you want to delete The Open Limit Set and Remove Limit Set buttons in the Function menu were covered previously For more information see these sections earlier in this chapter ...

Page 279: ...www trilithic com 120 DSP Basic Signal Level Meter Section V Appendix ...

Page 280: ...www trilithic com Page V 2 120 DSP Operation Manual THIS PAGE LEFT INTENTIONALLY BLANK Basic Signal Level Meter 1 20 ...

Page 281: ...8 256 QAM Annex A 64 256 QAM Annex B QAM Annex C Analog Measurement Accuracy 0 75 dB 77 F 25 C 2 0 dB from 0 to 122 F 18 to 50 C Digital Measurement Accuracy 0 75 dB 77 F 25 C 2 5 dB from 0 to 122 F 18 to 50 C Resolution 0 1 dB Frequency Range 4 to 110 MHz Resolution Bandwidth 300 kHz Display Spans 4 to 42 MHz 4 to 65 MHz 4 to 85 MHz or 4 to 110 MHz Display Scale 1 2 5 or 10 dB division Display Ra...

Page 282: ...words not from MER Standard ITU J 83 annex A B C Range 1 E 7 to 1 E 9 6 dBmV RF Input Level Symbol Rates 0 64 msps 7 msps In service non scrambled standard channels only Minimum Optimal Input Level for Full Range 10 dBmV although not optimal signals below this level can be measured Dynamic Range 50 dB Resolution 0 5 dB Carrier to Noise Measurement Max Number of Carriers 10 High Low Delta Resolutio...

Page 283: ...electable in 1 MHz steps Display Scale 1 2 5 or 10 dB division Display Range 8 vertical divisions when marker bar is hidden Spurious Free Dynamic Range 60 dB 25 C 77 F 50 dBmV Sensitivity 40 dBmV 50 MHz to 1 GHz Forward Spectrum Measurement OPTIONAL In service non scrambled standard channels only Minimum Input Level 0 dBmV Range 0 to 5 Resolution 0 1 Accuracy 0 5 Hum Measurement OPTIONAL ...

Page 284: ...lay Color LCD touch screen 320 x 240 pixels approx 3 5 x 2 67 Annunciators Audible annunciator for key strokes Flashlight High intensity LED 0 25W Dimensions w o Case H x W x D 7 00 x 4 50 x 1 75 in 20 32 x 13 97 x 5 08 cm Dimensions w Case H x W x D 8 0 x 5 50 x 2 75 in 22 86 x 16 51 x 7 62 cm Weight w o Case 1 0 lbs 0 45 Kg Weight w Case 1 5 lbs 1 09 Kg Physical Specifications ...

Page 285: ...2600 mAh 3 7V Li Ion internal battery factory replaceable Power Adapter Input Type 2 prong un grounded male plug NEMA 1 15p Voltage 100 to 240 VAC 50 to 60 Hz Current 0 3 A Max International Power Adapters Optional Type Interchangeable clip on US adapter included Euro CEE 7 16 Europlug Type C UK BS 546 Type D AUS AS NZS 3112 Power Adapter Output Type USB Type A female receptacle Voltage 5 VDC Curr...

Page 286: ...www trilithic com Page V 8 120 DSP Operation Manual Basic Signal Level Meter 1 20 Storage Operating Temperature 18 to 50 C 0 to 122 F Environmental Specifications ...

Page 287: ...ed warranty to be effective the product must have been handled and used as set forth in the documentation accompanying the product and or its packaging This limited warranty shall not apply to any damage due to accident misuse abuse neglect fire or other casualty Further this limited warranty shall not apply to any product which has been altered or where the damage was caused by a part not supplie...

Page 288: ...9710 Park Davis Drive Indianapolis IN 46235 317 895 3600 www trilithic com Made in U S A ...

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