Acterna - SDA-5000 - Analyzer
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Equipment:
SDA-5000
Date:
2001
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Information
The Stealth Digital Analyzer (SDA) cable network measurement
tools test a wide range of critical parameters, helping you
prove and maintain your system’s performance. Advanced
features include tools to support preventative maintenance
programs for improving network quality.
Applications include aligning Amplifier uch as optical
nodes, testing the performance of both forward and reverse
path networks, finding and fixing sources of reverse path
ingress, measuring signal quality (both continuous and
bursty digital carriers), and fulfilling FCC and CENELEC
proof-of-performance requirements.
You can perform comprehensive troubleshooting and
preventative maintenance tests with accuracy and ease using
Acterna’s SDA products:
• Quickly check frequency response, signal levels, hum,
carrier-to-noise (C/N) ratio, depth of modulation, and
monitor the general performance of the cable system
• Perform tests without interfering with CATV subscribers'
service
• Evaluate system performance precisely and diagnose and
eliminate problems quickly to maintain quality operation of
your CATV system equipment.
Acterna’s Stealth Sweep System consists of at least two
major components:
a headend transmitter and a field receiver.
FIELD UNIT SDA-5000 The SDA field receivers conduct a battery of signal level
measurements, including a full scan of the cable spectrum to
1 GHz, in addition to performing sweep reception. A
proprietary digital signal processing (DSP) technique
measures hum and carrier-to-noise (C/N) ratio on modulated
carriers.
The receivers are streamlined, hand-held instruments
weighing approximately 7.5 pounds. A 320 X 240 backlighted
dot matrix LCD shows measurement data in both graphical and
numerical formats. An extended-life Nickel Metal Hydride
(NiMH) battery (typically 4-5 hours operating time)
is standard.
Features of the SDA-5000 include:
• Fast scanning and spectrum analysis for ingress and noise
detection (catch bursty noise as fast as 5 microseconds)
• A desired/undesired TDMA (Time Division Multiple Access)
digital carrier analysis allowing you to see the quality and
performance of cable modems and digital set-top boxes in the
reverse path
• Simple operation through the expanded and redesigned
Navigator Interface • Built in pre-amp for reverse path alignment and analysis
that reduces the jumper cables and assorted boxes you must
carry and simplifies alignment methods. The pre-amp also
allows you to better see ingress and noise from high value
test points.
These features address advanced services such as Internet,
IP telephony, digital video, QAM analysis, and DVB Acterna offers current Stealth customers upgrade paths for
units already purchased.
Quickly find entry points for ingress and noise
• Fast peak detection circuits see ingress from even
transient noise sources
• Programmable dwell-time in spectrum mode
• “Dwell” on each frequency longer to find more of the noise
more quickly
• Zero span offers infinite dwell
• Fast spectrum scanning makes searching for ingress
interactive, eliminating the wait for the trace to ‘acquire’
• Observe noise signals clearly with the built-in pre-amp.
Instead of needing to guess about a signal that is just
above the noise floor, the built-in pre-amp allows you to
clearly see and diagnose noise
• Easily see the difference between meter-induced
intermodulation and system intermodulation and CPD (common
path distortion). A built-in low-pass Filter trips away
higher power forward path signals to examine just the
reverse path
• Save money, connections, and time. Carry just one box with
all the tools needed to find ingress.
1 Manual
User manual
Manual type:
User manual
Pages:
410
Size:
9.2 MB
Language:
english
Revision:
D
Manual-ID:
6510-00-0442
Date:
May 2001
Quality:
Electronic document, no scan, very well readable.
Upload date:
Aug. 16, 2018
MD5:
b0a73323-7ca2-38f1-7e71-7ac62136a3ec
Downloads:
2062
Information
ABOUT THE MANUAL
Section I Introduction
Chapter 1 introduces you to the new SDA family of CATV test
equipment. In this chapter, you learn about the features and
capabilities of the SDA field and headend units, and about
the various options available.
Section II Field Units
Chapter 2, "Description and Basic Operation," describes the
SDA-5000’s user Interface and its basic modes of operation.
You also learn basic configuration procedures and what you
need to print files and screen shots.
Chapter 3, "Channel Plans," shows you how to configure your
unit’s channel plan capability, edit channel plan
parameters, create, copy and edit channel
plans, and how to configure a digital carrier.
Chapter 4, "Field Sweeping with the SDA-5000 " begins with
coverage of test point compensation and how to configure
your SDA-5000 Sweep configuration is covered in detail,
after which you learn how to connect to Amplifier test
points and how to conduct forward, reverse, sweepless, and
loopback sweeps. This chapter also describes reverse Amplifier alignment.
Chapter 5, "Reverse Path Troubleshooting," describes the
problems most common to the return path, offers tips to help
you more quickly trace the trouble, and shows you how to use
the Zero Span mode to look at TDMA signals.
Chapter 6, "Measuring System Performance," explains how to
evaluate system performance by measuring key parameters.
Operations covered include Level, Tilt, Scan,
Carrier-to-Noise ratio (C/N), Hum, Modulation-Demodulation,
Composite Second Order (CSO) and Composite Triple Beat (CTB).
Chapter 7, "Spectrum Analyzer Mode," describes the
SDA-5000’s spectrum analysis capabilities and how it can
assist you in general troubleshooting and in examining TDMA
signals with the Zero Span mode. CSO/CTB mode is covered as
well.
Chapter 8, "PathTrak Field View (OPT3)," shows you how to
use PathTrak mode for return path troubleshooting by
comparing spectrum measurements at the node with current
conditions at the headend.
Chapter 9, "Digital Analysis (QAM View OPT4)," explains how
to use the new QAM digital channel tool. You’ll learn to
measure the most critical characteristics of a digital
channel, and how to use a spectrum view of ingress. You’ll
also learn how to use the constellation view to assist you
in your troubleshooting efforts and how to use the equalizer
to correct the effects of reflections in the transmission path.
Chapter 10, "Automatic Test," explains how to perform
automatic system tests, an easy way to acquire
proof-of-performance compliance data. You learn how to
create test locations and how to edit location parameters,
as well as how to set testing schedules and how to view and
print test reports.
Chapter 11, "Files," describes how to store, view, or print
files created from field measurement data. Sweep reference
files and measurement files are covered, along with the
procedure for comparing a reference file with a "live"
sweep in the field.
Chapter 12, "Maintenance," covers the routine maintenance
tasks that a service technician can perform in the field.
Inspection, connector replacement, battery terminal
cleaning, general cleaning, and calibration are all covered.
The chapter ends with a list of Acterna service centers
worldwide.
Section III Headend Units
Chapter 13, "Description and Basic Operation of the SDA-5500 and SDA-5510 " describes the user Interface and basic modes
of operation for the SDA headend units SDA-5500 and SDA-5510 You also learn basic configuration procedures and
what you need to print files and screen shots.
Chapter 14, "SDA-5500 SDA-5510 Sweep Configuration," shows
you how to configure the SDA-5500 for forward sweep and for
reverse sweep. It covers wiring connections, telemetry and
frequency settings, channel plan creation and editing, and
how to test the transmitter setup. You’ll also find
important information about using the SDA-5500 and SDA-5510 together. In addition, this chapter includes a section on
sweep history and theory that will deepen your understanding
of what sweeping is and how it works.
Section IV Appendices
Appendix A, "Application Notes," contains the full text of
four application notes that help to clarify many of the
issues covered in other chapters in the manual. The four
application notes are: "Forward Sweep and Balance,"
"Reverse Sweep and Balance," "Return Path Troubleshooting,"
and "Proofing and Testing."
Appendix B, "Specifications," lists the technical
specifications for each unit.
Appendix C, "Status Indicators and Icons," provides a
descriptive list of indicators and icons that you’ll find on
the SDA’s screens and used throughout the manual.
Appendix D, "User and Error Messages," describes many of the
messages that appear on-screen indicating a problem in
operation or a malfunctioning unit.
The Glossary defines many of the terms used throughout the
manual.