Wavetek 147 Dokumentacja

SDA Series Stealth Digital AnalyzerOperation Manual6510-00-0442, Rev DMay 2001

Contents xReverse SWEEP Screens...85Reverse Frequency Screen...

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field 7641. The vertical light bar just above REF at the top of the graph blinks

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field 784When the lower Start Frequency icon is highlighted, set the lower freque

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field 804Limit ScreenThe screen shown in Fig. 4-13 is where you set the value for

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field 824Fig. 4-14: The SWEEP Tilt ScreenReverse Sweep Operation (SDA-5000 OPT1)

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field 844See Also½ “Test Point Compensation Configuration” provides an example of

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field

Contents xi Audio Car

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field 864Reverse Frequency ScreenFrom the Frequency screen you can set the start

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field 884The display will change to a noise response indicating the noise level a

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field 904and down diamond keys. Save your setting by pressing the Enter key.Fig.

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field

Field Sweeping with the SDA-5000: Sweepless Sweep 924available (1, 2, 5, and 10 dB/div). Notice what happens to the display as you change the scale

Field Sweeping with the SDA-5000: Loopback Sweep (OPT2)

Field Sweeping with the SDA-5000: Loopback Sweep (OPT2) 944Fig. 4-23 The Loopback SWEEP ScreenThe title of the current Loopback sweep reference is

Chapter 5Reverse Path TroubleshootingThis chapter outlines some reverse path troubleshooting problems and discusses techniques you can employ with the

Contents xiiChapter 9Digital Analysis (QAM View OPT4)Introduction ...

Reverse Path Troubleshooting: Problems in Advanced Services 965For two-way systems, ingress and noise are far greater problems in the reverse path

Reverse Path Troubleshooting: Problems in Advanced Services

Reverse Path Troubleshooting: Problems in Advanced Services 985• CSO (Composite Second Order) Intermodulation: A clustering of second-order beats

Reverse Path Troubleshooting: Problems in Advanced Services

Reverse Path Troubleshooting: CPD (Common Path Distortion) Analysis 1005CPD (Common Path Distortion) is a form of intermodulation distortion that o

Reverse Path Troubleshooting: CPD (Common Path Distortion) Analysis

Reverse Path Troubleshooting: Evaluating TDMA Return Path Signals 1025likelihood of this occurring, the transmitter should be configured such that

Reverse Path Troubleshooting: Evaluating TDMA Return Path Signals

Reverse Path Troubleshooting: Evaluating TDMA Return Path Signals 1045Troubleshooting TDMACurrent reverse path troubleshooting strategies are not c

Reverse Path Troubleshooting: Evaluating TDMA Return Path Signals

Contents xiii Decisio

Reverse Path Troubleshooting: Evaluating TDMA Return Path Signals 1065Fig. 5-6 Signal with High Noise Floor in Zero SpanIntermittent ingress along

Reverse Path Troubleshooting: Evaluating TDMA Return Path Signals

Reverse Path Troubleshooting: Evaluating TDMA Return Path Signals 1085References1. Cable Television Laboratories, “Data-Over-Cable Service Interfac

Chapter 6 Measuring System PerformanceThis chapter explains how to evaluate system performance by measuring key parameters, both as part of routine mo

Measuring System Performance: Measuring Signal Levels 1106You measure signal levels in the Level, Tilt, and Scan modes. In Level and Scan, the proc

Measuring System Performance: Measuring Signal Levels

Measuring System Performance: Measuring Signal Levels 1126Fig. 6-2 LEVEL Mode Display, Specific Frequency OnlyNote that dual audio carrier channel

Measuring System Performance: Measuring Signal Levels

Measuring System Performance: Measuring Signal Levels 1146The Tilt adjustment uses amplifier gain to compensate for the attenuation of signals movi

Measuring System Performance: Measuring Signal Levels

Contents xivChapter 11FilesIntroduction ...197Sto

Measuring System Performance: Measuring Signal Levels 1166Scan RatesTwo scan rates can be selected in Scan mode, normal and fast. Select Scan Rate

Measuring System Performance: Measuring Signal Levels

Measuring System Performance: Measuring Signal Levels 1186Pressing this resets the start and stop frequencies to full span. Press this to zoom to v

Measuring System Performance: Carrier-to-Noise Measurements

Measuring System Performance: Carrier-to-Noise Measurements 1206then averages the values. This value is then corrected for the selected bandwidth,

Measuring System Performance: Modem Carrier-to-Noise Measurements

Measuring System Performance: Modem Carrier-to-Noise Measurements 1226as trigger level threshold, sweep time, measurement bandwidth, video bandwidt

Measuring System Performance: Modem Carrier-to-Noise Measurements

Measuring System Performance: Hum Measurements 1246marker so that it is more convenient for the user to select the desired (example: worst case) no

Measuring System Performance: Hum Measurements

Contents xv Measureme

Measuring System Performance: Modulation Measurements 1266The MODULATION screen allows you to monitor the video depth of modulation in graphical an

Measuring System Performance: Modulation Measurements

Measuring System Performance: CSO/CBT Measurements 1286CSO (Composite Second Order) is a clustering of second order beats at certain frequencies in

Measuring System Performance: CSO/CBT Measurements

Measuring System Performance: CSO/CBT Measurements 1306Fig. 6-13 CSO/CTB OffsetsUsing the up and down diamond keys, select the CSO Offset number t

Chapter 7Spectrum Analyzer ModeIn the Spectrum Analyzer mode, the instrument displays all or part of the CATV system spectrum, with variable spans fro

Spectrum Analyzer Mode: Spectrum Mode Operation 1327Fig. 7-1 The SPECTRUM Mode Main ScreenBelow are the primary functions of the soft keys in the

Spectrum Analyzer Mode: Spectrum Mode Operation

Spectrum Analyzer Mode: Spectrum Mode Operation 1347LEVEL SubmenuPress this to enter the LEVEL submenu, then to return to the main menu. Use the Le

Spectrum Analyzer Mode: Spectrum Mode Operation

Contents xviUsing Auto Test...248How To Create, Edit,

Spectrum Analyzer Mode: Spectrum Mode Operation 1367Fig. 7-3 The Spectrum Analyzer ZERO SPAN ScreenZERO SPAN SubmenuPress this to enter the ZERO S

Spectrum Analyzer Mode: Spectrum Mode Operation

Spectrum Analyzer Mode: Spectrum Mode Operation 1387TIMEBASE SubmenuPress the Timebase soft key to enter the TIMEBASE submenu.Press this soft key t

Spectrum Analyzer Mode: Spectrum Mode Operation

Spectrum Analyzer Mode: Spectrum Mode Operation 1407

Chapter 8PathTrak Field View (OPT3)PathTrak mode operation is available only if your unit has OPT3, Field View. The PathTrak mode provides increased t

PathTrak Field View (OPT3): PathTrak Mode Operation 1428Fig. 8-1 The PATHTRAK Configuration ScreenTo get to the PATHTRAK configuration screen, sel

PathTrak Field View (OPT3): PathTrak Mode Operation

PathTrak Field View (OPT3): PathTrak Mode Operation 1448Fig. 8-3 PathTrak Mode – Remote TraceThe following sections describe the functions of the

PathTrak Field View (OPT3): PathTrak Mode Operation

Contents xvii Reverse

PathTrak Field View (OPT3): PathTrak Mode Operation 1468provide the PathTrak system administrator with the identification (ID) number of the reques

PathTrak Field View (OPT3): PathTrak Mode Operation

PathTrak Field View (OPT3): PathTrak Mode Operation 1488

Chapter 9Digital Analysis (QAM View OPT4)This chapter reviews the features and operation of the SDA digital analysis option (QAM View OPT4). In additi

Digital Analysis (QAM View OPT4): Quick Start 1509For experienced users of the Stealth Digital Analyzer, or for users familiar with other types of

Digital Analysis (QAM View OPT4): Quick Start

Digital Analysis (QAM View OPT4): Quick Start 1529display shows the channel, modulation format, the symbol rate, the carrier offset (in KHz), the e

Digital Analysis (QAM View OPT4): Digital Summary Mode

Digital Analysis (QAM View OPT4): Digital Summary Mode 1549Features and DefinitionsDIGITAL Main Screen FeaturesThe DIGITAL Main Screen (see Fig. 9-

Digital Analysis (QAM View OPT4): Digital Summary Mode

Contents xviiiForward Balancing and Sweeping...312Common Forward Sweep Problems...

Digital Analysis (QAM View OPT4): Digital Summary Mode 1569Equalizer StressEqualizer stress is ranked as Low, Medium, or High on the DETAIL Display

Digital Analysis (QAM View OPT4): Digital Summary Mode

Digital Analysis (QAM View OPT4): Digital Summary Mode 1589Fig. 9-5 QAM Level DisplayPress this key to return to Digital Summary Mode.Editing the M

Digital Analysis (QAM View OPT4): Digital Summary Mode

Digital Analysis (QAM View OPT4): QAM Ingress Mode 1609Fig. 9-7 Editing the Symbol Rate Press this key to save the symbol rate to the channel plan

Digital Analysis (QAM View OPT4): QAM Ingress Mode

Digital Analysis (QAM View OPT4): QAM Ingress Mode 1629Fig. 9-8 QAM INGRESS Main Screen The SDA will automatically attempt to lock-on to the QAM s

Digital Analysis (QAM View OPT4): QAM Ingress Mode

Digital Analysis (QAM View OPT4): QAM Ingress Mode 1649These three parameters may be edited to allow different views of the QAM ingress signal on t

Digital Analysis (QAM View OPT4): QAM Ingress Mode

Contents xix FCC Titl

Digital Analysis (QAM View OPT4): Constellation Mode 1669Fig. 9-11 Maximum Hold Function SelectedPress this key to return to the QAM INGRESS Main

Digital Analysis (QAM View OPT4): Constellation Mode

Digital Analysis (QAM View OPT4): Constellation Mode 1689Fig. 9-13 Phase Noise ImpairmentCoherent interference impairments -- such as CTB, CSO, an

Digital Analysis (QAM View OPT4): Constellation Mode

Digital Analysis (QAM View OPT4): Constellation Mode 1709CONSTELLATION Main Screen FeaturesFrom the CONSTELLATION Main Screen (Fig. 9-15) you can •

Digital Analysis (QAM View OPT4): Constellation Mode

Digital Analysis (QAM View OPT4): Constellation Mode 1729Use the alphanumeric keypad to define the new symbol rate, and then press the Enter key. E

Digital Analysis (QAM View OPT4): Constellation Mode

Digital Analysis (QAM View OPT4): Equalizer Mode 1749Fig. 9-19 64 QAM 2x2 Zoom Screen The Adaptive Equalizer corrects the effects of reflections a

Digital Analysis (QAM View OPT4): Equalizer Mode

Global Headquarters20400 Observation DriveGermantown, Maryland 20876-4023 USAToll Free 1-800-638-2049 • Tel +1-301-353-1550 • Fax +1-301-353-0234www.a

Contents xx Measurable QAM Ingress:...350Channel Bandwidth:...

Digital Analysis (QAM View OPT4): Equalizer Mode 1769Fig. 9-20 EQUALIZER Main ScreenThe SDA will automatically attempt to lock-on to the QAM signa

Digital Analysis (QAM View OPT4): Equalizer Mode

Digital Analysis (QAM View OPT4): Equalizer Mode 1789Fig. 9-22 In-Channel Group Delay ScreenPress this key to return to the EQUALIZER Main Screen.

Chapter 10Automatic TestAutomated tests are easy and provide a convenient way of acquiring proof-of-performance compliance data. Tests can be executed

Automatic Test: Test Locations 180103. Enter a compensation value for local measurements.4. Enter a name for the results file.5. Select the type of

Automatic Test: Test Locations

Automatic Test: Test Locations 18210Creating and Editing Test LocationsUse the up and down diamond keys to select Test Locations from the main AUTO

Automatic Test: Test Locations

Automatic Test: Performing an Auto Test 18410screen shown in Fig. 10-3. If you are about to overwrite an existing location, the following warning a

Automatic Test: Performing an Auto Test

PrefaceThe Stealth Digital Analyzer (SDA) is the new base platform for Acterna’s family of signal analysis and sweep meters. This manual will guide yo

Automatic Test: Performing an Auto Test 18610Location soft key (with the picture of a document going into a folder, near the top right of the scree

Automatic Test: Performing an Auto Test

Automatic Test: Performing an Auto Test 18810CompensationCompensation is added directly to the signal level measurements. You can use this to compe

Automatic Test: Performing an Auto Test

Automatic Test: Performing an Auto Test 19010Fig. 10-10 The SET SCHEDULE ScreenTemperatureThe ambient temperature at which the test is performed i

Automatic Test: Auto Test Results

Automatic Test: Auto Test Results 19210• The Info soft key displays the test location characteristics for the selected file. This is the informati

Automatic Test: Auto Test Results

Automatic Test: Auto Test Results 19410NOTE: Channel 5 will always pass the adjacent channels test because it is not recognized as an adjacent cha

Automatic Test: Auto Test Results

Preface: About the Manual xxiiChapter 4, "Field Sweeping with the SDA-5000," begins with coverage of test point compensation and how to c

Automatic Test: Auto Test Results 19610

Chapter 11FilesThe SDA-5000 is equipped with non-volatile memory that is used to store data from field measurements for viewing at a later time. You c

Files: Storing Files 19811• Spectrum scans—including regular, zero-span, and CSO/CTB measurements. Regular measurements can also include peak-hold

Files: Storing Files 199

Files: Viewing and Printing Files 20011To view stored measurement files, press the Function and 2 def keys. The MEASUREMENT FILES screen displays a

Files: Sweep References

Files: Sweep References 20211• SWPLS (Sweepless Sweep): In Sweepless Sweep, the instrument is completely passive, sweeping its receiver across th

Files: Overlay Mode 203

Files: Overlay Mode 20411Fig. 11-4 A Sweep Reference with a Live Sweep In the file shown above, a ‘trap’ was added after the file was stored. It i

Files: Overlay Mode 205

Preface: About the Manual

Files: Overlay Mode 20611

Chapter 12MaintenanceThis chapter covers routine tasks that a Service Technician can perform on the SDA instruments.Visual, Physical, and Mechanical I

Maintenance: Maintaining Your SDA Equipment 20812Battery Terminal CleaningClean the battery terminal regularly. You should examine it weekly for si

Maintenance: Worldwide Support, Sales, and Service

Maintenance: About Our Service 21012During off-hours you can request assistance by doing one of the following: leave a voice mail message at the Te

Maintenance: About Our Service

Maintenance: About Our Service 21212Under time and material pricing, customers are billed for the actual cost of the repair, making this a cost-eff

Maintenance: About Our Service

Maintenance: About Our Service 21412shipment to Customer. If Installation Services have not been ordered, the warranty period shall begin upon ship

Maintenance: About Our Service

Preface: About the Manual xxiv Additional, important information appears throughout the manual in the form of Tips, Notes, Cautions, and See Also r

Maintenance: About Our Service 21612reference number on the outside of the package and ship it prepaid and insured to Acterna.

Chapter 13Description and Basic Operationof the SDA-5500 and 5510This chapter explains the user interface, basic operational modes, configuration, and

Description and Basic Operation of the SDA-5500 and 5510: User Interface Elements 21813• four diamond keys • sixteen numeric entry keysSoft KeysT

Description and Basic Operation of the SDA-5500 and 5510: User Interface Elements

Description and Basic Operation of the SDA-5500 and 5510: User Interface Elements 22013• SPECT: Provides a Spectrum Analyzer display, and CSO/CTB

Description and Basic Operation of the SDA-5500 and 5510: User Interface Elements

Description and Basic Operation of the SDA-5500 and 5510: Global Configuration 22213This section describes the six setup modes for the SDA-5500 and

Description and Basic Operation of the SDA-5500 and 5510: Global Configuration

Description and Basic Operation of the SDA-5500 and 5510: Global Configuration 22413Date: Select this option to enter the date using the numeric e

Description and Basic Operation of the SDA-5500 and 5510: Global Configuration

Chapter 1The SDA FamilyThe Stealth Digital Analyzer (SDA) cable network measurement tools test a wide range of critical parameters, helping you prove

Description and Basic Operation of the SDA-5500 and 5510: Global Configuration 22613Fig. 13-6 The MEASUREMENTS Setup ScreenTemperature Units: Use

Description and Basic Operation of the SDA-5500 and 5510: Global Configuration

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation 22813• Enable live headend ingress• Reverse Telemetry Frequenc

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation 23013Tuning by Channel or FrequencyWhen the level mode is select

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation 23213Pressing the Auto Scale soft key will automatically set the

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation 23413Audio CarriersIf desired, the audio carriers can be omitted

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation

The SDA Family: Introduction 21NOTE: One benefit of the SDA products is the increased sweep speed provided by the new SDA Stealth Sweep and SDA Tr

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation 23613Fig. 13-11 The C/N ScreenTo make a carrier to noise measur

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation 23813NOTE: The <1kHz setting does not include the 1Hz compon

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation 24013Level AdjustmentsA LVL (level) soft key is used to adjust t

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation 24213Fig. 13-17 The CSO/CTB Measurement ScreenThe light trace r

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation 24413Fig. 13-19 The SWEEP Mode Screen (SDA-5500)NOTE: Sweep te

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation

The SDA Family: Field Unit (SDA-5000)

Description and Basic Operation of the SDA-5500 and 5510: Basic Modes of Operation 24613Fig. 13-21 The Operator Information ScreenFrequency Adjust

Description and Basic Operation of the SDA-5500 and 5510: Working with Files

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test 248132. Press the Store File soft key. The screen prompts you for a file

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test 25013Press the New soft key to create a new test location file (Fig. 13-2

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test 25213shows which of the parameters in the table above apply to each of th

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test 25413 Fig. 13-28 Configuring Auto Test Location ParametersPress the Ente

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test

The SDA Family: Field Unit (SDA-5000) 41• Observe noise signals clearly with the built-in pre-amp. Instead of needing to guess about a signal that

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test 25613Fig. 13-30 Entering System Voltage MeasurementsThe voltage measurem

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test 25813Fig. 13-33 The AUTO TEST IN PROGRESS ScreenWhile the Auto Test is i

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test 26013Fig. 13-36 The Auto Test Results ModeA table with all testing interv

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test 26213-------------------------------------------------------------------A

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test 26413 Fig. 13-39 Viewing Measurements ResultsWhen viewing the list of C/

Description and Basic Operation of the SDA-5500 and 5510: Using Auto Test

The SDA Family: Headend Units (SDA-5500 and SDA-5510)

Description and Basic Operation of the SDA-5500 and 5510: Status 26613To view the Status screen, press the FCN and Status keys. The Status screen p

Chapter 14SDA-5500/SDA-5510 Sweep ConfigurationThis chapter tells how to connect to a headend for sweeping and details all procedures involved in setu

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500) 26814Fig. 14-1 Wiring for SDA-5500 Forward-only SweepFig. 14-2 Wiri

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500)

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500) 27014Fig. 14-3 Relationship of Video Carriers, Sweep Insertion Point

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500)

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500) 27214Fig. 14-4 The SWEEP TRANSCEIVER Main MenuUse the up and down ar

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500)

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500) 27414See Also½ For more information about reverse sweep plans, see &

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500)

Federal Communications Commission (FCC) Notice This product was tested and found to comply with the limits for a Class A digital device, pur-suant to

The SDA Family: Headend Units (SDA-5500 and SDA-5510) 61areas. In addition to generating the sweep test signal, the SDA-5500 continuously monitors

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500) 27614Fig. 14-5 The Channel Plan Main MenuOptions available in this l

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500)

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500) 278141. From the main CHANNEL PLAN menu, scroll to Edit Channel Plan

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500)

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500) 28014• Scrambled: Select Yes if the channel is scrambled. When a cha

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500)

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500) 28214Fig. 14-8 The EDIT LIMITS Screen • Use the up and down arrow k

SDA-5500/SDA-5510 Sweep Configuration: Forward Sweep Configuration (SDA-5500)

SDA-5500/SDA-5510 Sweep Configuration: Configuring Reverse Sweep 28414• Using the TX diagnostics menu of the SDA-5500, generate a CW signal at the

SDA-5500/SDA-5510 Sweep Configuration: Configuring Reverse Sweep

The SDA Family: Options

SDA-5500/SDA-5510 Sweep Configuration: Configuring Reverse Sweep 28614Fig. 14-10 Single Cable – Split Band Network Reverse Sweep Configuration Wit

SDA-5500/SDA-5510 Sweep Configuration: Configuring Reverse Sweep

SDA-5500/SDA-5510 Sweep Configuration: Configuring Reverse Sweep 28814Fig. 14-12 Dual Cable Network Test SetupThe same information about levels an

SDA-5500/SDA-5510 Sweep Configuration: Configuring Reverse Sweep

SDA-5500/SDA-5510 Sweep Configuration: Configuring Reverse Sweep 29014During reverse sweeping using only the SDA-5500 in the headend, the level of

SDA-5500/SDA-5510 Sweep Configuration: Configuring Reverse Sweep

SDA-5500/SDA-5510 Sweep Configuration: Configuring Reverse Sweep 29214Fig. 14-14 Creating a New Reverse Sweep Plan, Step 12. Enter the start frequ

SDA-5500/SDA-5510 Sweep Configuration: Configuring Reverse Sweep

SDA-5500/SDA-5510 Sweep Configuration: Configuring Reverse Sweep 29414Sweep points are generated beginning at the start frequency and continuing un

SDA-5500/SDA-5510 Sweep Configuration: Configuring Reverse Sweep

The SDA Family: Options 81• SDA-OPT4B: 64/256 QAM, DVS-031, ITU-T J.83 Annex B• SDA-OPT5: 75 Ohm BNC Connector option• SDA-OPT6:

SDA-5500/SDA-5510 Sweep Configuration: Forward and Reverse Sweep (SDA-5500) 296142. Set the reverse telemetry and sweep levels of the SDA-5000 so t

SDA-5500/SDA-5510 Sweep Configuration: Using Both Headend Units

SDA-5500/SDA-5510 Sweep Configuration: Sweep History and Theory 29814Fig. 14-21 Connecting an SDA-5510 in a System with an SDA-5500What is sweep t

SDA-5500/SDA-5510 Sweep Configuration: Sweep History and Theory

SDA-5500/SDA-5510 Sweep Configuration: Sweep History and Theory 30014channel. The only element that must be configured to match receiver and transm

SDA-5500/SDA-5510 Sweep Configuration: Sweep History and Theory

SDA-5500/SDA-5510 Sweep Configuration: Sweep History and Theory 30214should be within N/10+X dB of flat at its output. Stealth sweep can automatica

SDA-5500/SDA-5510 Sweep Configuration: Sweep History and Theory

SDA-5500/SDA-5510 Sweep Configuration: Sweep History and Theory 30414relative readings among several system test points and to allow referencing to

SDA-5500/SDA-5510 Sweep Configuration: Sweep History and Theory

Chapter 2Description and Basic OperationThis chapter introduces you to the SDA-5000. The user interface is covered first, beginning with the redesigne

SDA-5500/SDA-5510 Sweep Configuration: Sweep History and Theory 30614See Also½ For more information about reverse path troubleshooting, see Chapter

Appendix AApplication NotesStep-by-Step Headend Setup for Forward SweepForward Sweep SetupA diplex filter is used to combine reverse signals into the

Application Notes: Forward Sweep and Balance 308ATx=Stealth Headend TransmitterRx=Multiple User Reverse ReceiverBuild Channel Plan (Configure; Chan

Application Notes: Forward Sweep and Balance

Application Notes: Forward Sweep and Balance 310Adownstream spectrum. The factory default is 51 MHz on the Tx and 52 MHz on the Rx.NOTE: If diplex

Application Notes: Forward Sweep and Balance

Application Notes: Forward Sweep and Balance 312AA forward sweep reference can also be taken at this time. Press “func” and “6” and enter a name fo

Application Notes: Forward Sweep and Balance

Application Notes: Forward Sweep and Balance 314ANo Communication• Verify the appropriate telemetry; keep it high and located in the passband. Wat

Application Notes: Forward Sweep and Balance

Description and Basic Operation: User Interface Elements 102The SDA-5000 has two primary user interface elements, the Navigator (shown in Fig. 2-1)

Application Notes: Forward Sweep and Balance 316A• Balancing inactive plant; One could insert the receiver transmitter into the node where the opt

Application Notes: Forward Sweep and Balance

Application Notes: Reverse Sweep and Balance 318AStep-by-Step Headend Set UpReverse Sweep SetupA diplex filter is used to combine the reverse signa

Application Notes: Reverse Sweep and Balance

Application Notes: Reverse Sweep and Balance 320ASweep Transceiver (Configure; Sweep Transceiver).Forward Telemetry Frequency must be in the vacant

Application Notes: Reverse Sweep and Balance

Application Notes: Reverse Sweep and Balance 322Athe sequence: (“func” and “6”). A name must be entered for your reference.Take a normalized refere

Application Notes: Reverse Sweep and Balance

Application Notes: Reverse Sweep and Balance 324AFind the highest number and set the Sweep and Telemetry close to this. For instance, the highest n

Application Notes: Reverse Sweep and Balance

Description and Basic Operation: User Interface Elements

Application Notes: Reverse Sweep and Balance 326Anoise floor level on the reverse input and compare with the reverse output. It should be higher by

Application Notes: Reverse Sweep and Balance

Application Notes: Reverse Sweep and Balance 328ANOTE: You must leave the field unit in this mode for the Tx to stay active. The cable must be att

Application Notes: Return Path Troubleshooting

Application Notes: Return Path Troubleshooting 330Adown. The same thing can happen in customer installed passives unless they have voltage blocking

Application Notes: Return Path Troubleshooting

Application Notes: Return Path Troubleshooting 332Amisleading. If there’s a reference carrier present, you can make a relative measurement, such as

Application Notes: Return Path Troubleshooting

Application Notes: Return Path Troubleshooting 334AFig. Reverse ingress spectrum trace after 30 sec. with traditional settings.Fig. Reverse ingress

Application Notes: Proofing and Testing

Description and Basic Operation: User Interface Elements 122Files and Configure tab RF Measure tabConfig ...page 22 Level...page

Application Notes: Proofing and Testing 336AThe video level for each channel at the end of a 100 foot drop will have:• > 3 dBmV [76.605(a)(3)].

Application Notes: Proofing and Testing

Application Notes: Proofing and Testing 338Arange of the field unit is 52 dB. The FCC specification is for CNR > 43 dB. Most systems design for

Application Notes: Proofing and Testing

Application Notes: Proofing and Testing 340ATerminal Isolation [76.605(a)(9)]Terminal isolation shall be at least 18 dB. In reality, it’s usually m

Application Notes: Proofing and Testing

Application Notes: Proofing and Testing 342Adipole". Leaks in excess of these strengths at respective distance and frequency must be repaired

Appendix BSpecificationsFrequencyRange: 5 to 1,000 MHzAccuracy: ±10 ppm at 25°C; ± 10 ppm drift over temp.; ± 3 ppm/year agingResolution bandwidths

Specifications 344BUncertainty for digital carrier: Additional ±0.5 dB (digital types 16/32/64/256 QAM, QPR, QPSK, VSB, CAP-16, DVB/ACTS and TDMA

Specifications 345 BS

Description and Basic Operation: User Interface Elements

Specifications 346BZero-Span ModeVideo BW: >1MHz, 100 kHz, 10 kHz, 100 Hz Resolution BW: 2 MHz, 280 kHz, 30 kHz Measurement BW compensation:

Specifications 347 BD

Specifications 348BAC line (SDA 5000)Charger input: 100-250 VAC 50 - 60 Hz, 0.5ACharger output: Aux out: 16V @ 750 mACharge: 15V @ 750 mA AC line

Specifications 349 BM

Specifications 350BEVM (Error Vector Magnitude):64 QAM / Option 4A: 1.2% - 5.2%Accuracy: ± 0.5% (1.2% - 2.0%)± 1.0% (2.1% - 4.0%)± 1.4% (4.1%

Specifications 351 BP

Specifications 352B

Appendix CStatus Indicators and IconsStatus Indicators The following status indicators are displayed in the title bar:UnlockedLow BatteryFunction Key

Status Indicators and Icons 354CVideo CarrierAudio CarrierSingle CarrierDUAL CarrierBand Pass Filter (Hum screen)Low Pass Filter (Hum screen)Noise

Status Indicators and Icons

Description and Basic Operation: User Interface Elements 142• Three support mode keys:• Nav calls up the Navigator menu.• Test accesses the AUTO

Status Indicators and Icons 356CMeasurement Bandwidth Demodulation ToggleScale Volume UpReturn to Last Mode Volume DownAudio Enable CancelRestart C

Status Indicators and Icons

Status Indicators and Icons 358CView Node List Toggle NodeSDA Option 4 -- QAMIn addition to many of the icons listed above, Option 4 uses the follo

Appendix DUser and Error MessagesIntroductionThe SDA is equipped with helpful messages that may appear to indicate improper operation or unit malfunct

User and Error Messages 360DERROR... The noise frequency is out of range!Condition: The noise offset frequency plus the carrier frequency exceeds t

User and Error Messages

User and Error Messages 362DERROR... A system error has occurred! Please select another mode.Condition: A system error has been detected.Response:

User and Error Messages

User and Error Messages 364DERROR... Hum cannot be measured on a scrambled channel!Condition: A channel that has been programmed as scrambled in se

Appendix EGlossaryThis glossary covers terminology used in the manual, as well as other terms, that will help to clarify discussion and procedures in

Description and Basic Operation: User Interface Elements

Glossary 366Elowest frequencies carried by a channel. Also the speed (bit-rate velocity at which data can be transferred and presented. C/N; also C

Glossary 367 EEdit Bo

Glossary 368ELevel Level is a measurement of signal and reference voltages in the cable system, expressed in dBmV or as a ratio expressed in dBLPF

Glossary 369 EPilot C

Glossary 370ESuck-Out Excessive cable transmission loss that affects or several channels acutely as a function of frequency due to sharp kinks or b

IndexSymbols and Numbers13 dB amplifier, enabling (Spectrum Analyzer mode) 13516 QAM modulation 10424-hour reports (Autotests) 192-193, 261-265reading

372Indexresults file names 188saving locations 185selecting probe points 186temperature 190test point compensation 188test types 189voltage measuremen

373IndexeditingSDA-5500

374IndexDD/U (Desired/Undesired) 366date format 24Date Format option 223Date option 224dBc values 161DC-12 307, 318decibels with respect to the carrie

375IndexError Vector Ma

Description and Basic Operation: User Interface Elements 162Alphanumeric KeypadThe alphanumeric keypad is augmented with green icons above each key

376Indexparameters 47Sweep key 15telemetry frequency 370transmitter 31tuning step sizes 26frequency adjustmentsScan mode 233Spectrum Analyzer mode 240

377Indexhum modulation

378IndexScan mode 234Lines/Page option 224Local measurement trace 142Loopback sweep 19, 93-94Low Pass Filter State, C/N measurement 123low pass filter

379IndexNode List optio

380Indexprobe points (Autotests), selecting 186proofing and testing, FCC regulations 335-342proof-of-performance tests 19-20proof-of-performance, auto

381IndexSDA-5510 284-29

382IndexPathTrak Field View 141signal level considerations 71test points, connecting to 70troubleshooting, reverse path 95SDA-5500alphanumeric keys 22

383Indexspectrum analyz

384IndexSDA-5510 219Sweep References 302-303Sweep References menu 202sweep speeds 49Sweep telemetry 31Sweep Telemetry On/Off option 225Sweep Transceiv

385Indextime 24Time Div

Description and Basic Operation: Basic Modes of Operation

386Index

Description and Basic Operation: Basic Modes of Operation 182LEVEL mode presents a detailed display about a single channel. Video and audio levels

Description and Basic Operation: Basic Modes of Operation

Description and Basic Operation: Basic Modes of Operation 202service and in-channel. This allows you to measure the performance customers really ex

Description and Basic Operation: Basic Modes of Operation

Description and Basic Operation: Configuring the SDA-5000 222to toggle between the Local and Remote traces to compare measurement data so you can q

Description and Basic Operation: Configuring the SDA-5000

Description and Basic Operation: Configuring the SDA-5000 242Fig. 2-7 The GLOBAL Menu• Backlight Time-out Period: You can also conserve battery

Description and Basic Operation: Configuring the SDA-5000

Important safety instructionsThe following table defines safety terms. Failure to observe these precautions while using the Stealth Digital Analyzer v

Description and Basic Operation: Configuring the SDA-5000 262Fig. 2-8 The MEASUREMENT MenuNOTE: The Test Point Compensation item has been moved t

Description and Basic Operation: Configuring the SDA-5000

Description and Basic Operation: Configuring the SDA-5000 282• Delete unused channels• Build sweep points• Specify Auto Test measurements• Edit

Description and Basic Operation: Configuring the SDA-5000

Description and Basic Operation: Configuring the SDA-5000 302Fig. 2-10 The DISPLAY TEST Screen• Transmitter Diagnostics: Highlight this option a

Description and Basic Operation: Configuring the SDA-5000

Description and Basic Operation: Configuring the SDA-5000 322Fig. 2-13 Calibrate Error (Missing Jumper Cable)If your connections are correct and y

Description and Basic Operation: Printing Measurements and Files

Description and Basic Operation: Printing Measurements and Files 342

Chapter 3Channel PlansUsing a channel plan, the SDA field unit memorizes the frequencies of active channels on your system. NOTE: Separate channel pl

9 Do not attempt to service this product yourself, as opening or removing covers may expose you to dangerous, high voltage points and other hazards. R

Channel Plans: Channel Plan Configuration 363To begin, turn the power on and go to the CONFIGURE menu, either by pressing the Nav key, selecting th

Channel Plans: Channel Plan Configuration

Channel Plans: Setting Channel Plan Parameters 383To set the channel plan parameters, follow the prompts in the Edit Box and the directions in the

Channel Plans: Setting Channel Plan Parameters

Channel Plans: Setting Channel Plan Parameters 403See Also½ For more information about these signal types, see the Glossary at the end of this manu

Channel Plans: Setting Channel Plan Parameters

Channel Plans: Setting Channel Plan Parameters 423Fig. 3-6 The BUILD PLAN STEP 2 Screen3. At the STEP 2 screen, use the up and down diamond keys t

Channel Plans: Setting Channel Plan Parameters

Channel Plans: Setting Channel Plan Parameters 443Fig. 3-8 The EDIT CHANNEL PLAN ScreenThe eight columns of this screen display the following info

Channel Plans: Setting Channel Plan Parameters

ContentsPrefaceAbout the Manual... xxiSection I Introduction

Channel Plans: Setting Channel Plan Parameters 463Editable Parameters• Enabled: This enables the instrument to monitor the channel. Select Yes or

Channel Plans: Setting Channel Plan Parameters

Channel Plans: Setting Channel Plan Parameters 483• Channel Number: This is the channel number of the carrier. Change the channel number by press

Channel Plans: Setting Channel Plan Parameters

Channel Plans: Setting Channel Plan Parameters 503the digital channel’s bandwidth, and changes the Measurement BW setting appropriately. If you cha

Channel Plans: Setting Channel Plan Parameters

Channel Plans: Setting Channel Plan Parameters 5234. Press the down diamond key to highlight Standard and press Enter to edit the current selection

Channel Plans: Setting Channel Plan Parameters

Channel Plans: Setting Channel Plan Parameters 5431. Select Specify Auto Measurements from the CHANNEL PLAN menu and press the Continue soft key. T

Channel Plans: Setting Channel Plan Parameters

Contents viiiChapter 2Description and Basic OperationIntroduction ...

Channel Plans: Setting Channel Plan Parameters 563NOTE: You can use the Factory icon soft key at the upper right of the screen to set FCC (US) rec

Channel Plans: Setting Channel Plan Parameters

Channel Plans: Setting Channel Plan Parameters 583

Chapter 4Field Sweeping with the SDA-5000This chapter explains the SDA field units’ sweep function. You’ll first be introduced to test point compensat

Field Sweeping with the SDA-5000: Test Point Compensation 604order to perform tests without cutting off service, it is necessary to use test points

Field Sweeping with the SDA-5000: Test Point Compensation

Field Sweeping with the SDA-5000: Test Point Compensation 624Press this soft key to call up the TESTPOINT INFO screen shown in Fig. 4-4. This scree

Field Sweeping with the SDA-5000: Test Point Compensation

Field Sweeping with the SDA-5000: Sweep Receiver Configuration 644Fig. 4-4 Telemetry and Sweep Generation and Injection LevelsThe sweep injection

Field Sweeping with the SDA-5000: Sweep Receiver Configuration

Contents ix Editable

Field Sweeping with the SDA-5000: Sweep Receiver Configuration 664Table 4-1 Sweep OptionsStealthStealth(SDA Compatible)Transmit (OPT2)Transmit (SD

Field Sweeping with the SDA-5000: Sweep Receiver Configuration

Field Sweeping with the SDA-5000: Sweep Receiver Configuration 684reverse sweep and reverse noise features. This will speed up the SDA-5500’s forwa

Field Sweeping with the SDA-5000: Sweep Receiver Configuration

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field 704stored response during viewing. Use the up and down diamond keys to enab

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field 724Wiring and Levels: Reverse Sweep (SDA-5000 OPT1)You can use several conn

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field 744Fig. 4-9 Dual Cable Network Test SetupThe same information about levels

Field Sweeping with the SDA-5000: Considerations for Sweep in the Field