Trilithic 120 DSP User Manual

■ Tailored to Simplify Installation and

Troubleshooting of RF Signals

■ Intuitive Color Display with Simple Pass/

Fail Indicators Reduce Installer Entry
Errors and Improves Decision Making

■ Autotests Streamline Certication

■ Convenient Multiple Standard Tests in a

Single Autotest App help to Standardize
Tech Processes & Procedures

■ Powerful Troubleshooting Tools Improve

the Overall Health of the System

■ Up to Six Hours of Operation from a

Single Charge

Basic Signal Level Meter

An affordable entry-level testing solution for

CATV eld technicians & contractors

Overview

The 120 DSP™ signal level meter is

the most cost-effective and dependable

tool available for all of your basic CATV

installation needs. This device features

a compact rugged design, easy-to-use

color user interface and an unparalleled

selection of digital and analog channel

measurements.

Autotest Apps

The 120 DSP streamlines your testing

procedures while making installation

and troubleshooting more efcient

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 channel plan. The results

are then compared to a specic set of

measurement limits and displayed with

familiar color-coded Pass/Fail results.

All of this can easily be accomplished

just by simply pressing a single button.

Job Management

With the included Job manager,

technicians have the ability to enter job

information that can be attached to any

test results. Notes can also be added

directly to each job so the technician

can report any faults, anamolies or

job codes related to the work being

performed.

Level Measurements

When testing or troubleshooting within

your analog, digital or mixed analog/

digital transmission system, the

120 DSP makes the perfect tool for

measuring the power levels of all of

your analog and digital QAM carriers.

Additionally, for QAM carriers (including

deep interleave) the 120 DSP provides

Constellation, Equalizer Tap, MER and

BER measurement displays. This allows

users to quickly analyze 64 and 256

QAM downstream channels for quality

verications or to locate impairments

with the meter, all right out of the box.

Channel Plan Scan

With its channel plan scan feature, the

120 DSP can also display the frequency

response of the entire channel lineup.

This measurement displays a color-

coded bar graph of each channel or

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 full return spectrum

from 4 to 110 MHz. The spectrum

display provides peak measurements,

color-coded markers, and delta

measurements. This feature also

includes adjustable detector modes

which are useful for capturing bursty

transient noise. Optionally, the 120

DSP can also be equipped to perform

forward spectrum measurements from

50 MHz to 1000 MHz.

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Specications are subject to change without notice. Please contact your sales representative for further information.

Copyright © 2015 Trilithic, Inc. All Rights Reserved - 100915-REV1

AVAILABLE MODELS:

■ 120 DSP - US (6 MHz)

with 10/100 Mbps Ethernet

P/N 2011738XXX

■ 120 DSP - EURO (6/8 MHz)

with 10/100 Mbps Ethernet

P/N 2011740XXX

OPTIONS:

■ Forward Spectrum Analysis

(FSA)

P/N 0930207004

■ Analog & Digital HUM

P/N 0930207005

Basic Signal Level Meter

The 120 DSP supports a variety of functions,
including:

■ User-Dened Tests

■ Multi-language Support

■ Create Work Orders Right on the Meter

■ Interactive Basic RF Installation Process

■ Flexible Data Storage & Setup

Simple Yet Powerful

Providing the widest range of

functions for an installer available

today (as standard options), the

120 DSP includes virtually all

the testing options an installer or

service technician needs to verify

service quality and easily identify

and x problems in the eld.

STANDARD TESTING FEATURES:

■ Return Spectrum Analysis (4 to 110 MHz)

■ Level Measurement

■ C/N Measurement

■ QAM Measurement (MER/BER/Constellation/EQ)

■ Complete Channel Plan Scan with Tilt Measurement

■ Network Test Suite with Ping, Traceroute, & Throughput

Measurements

STANDARD INTERFACES:

■ RF Test Port (F-Type)

■ RJ45 Management Port (10/100 Mbps)

■ Mini-USB Type B Female Charge & Data Port

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Basic Signal Level Meter

HUM Measurement

The HUM measurement function is used to troubleshoot

interference that may 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-Dened Autotests

A signicant time and cost savings feature of the 120 DSP

is the capability to group tests into automatic tests that can

be executed with a single keystroke. Several Autotests can

be stored in the meter and recalled as needed. These may

include Level, Tilt, Spectrum, Hum, and Limit tests.

Flexible Data Storage

The user can easily customize their 120 DSP with a virtually

unlimited number of channel plans, limit sets, and jobs. This

feature makes life much easier for technicians that work in

multiple systems or areas that have differing channel lineups

and testing requirements.

With Trilithic’s complimentary ViewPoint Express PC software,

you can quickly create setup les for the 120 DSP. These les

can be packaged for easy transfer to one or all of your 120

DSP units simply using a standard USB ash drive.

The 120 DSP can also save measurement results and screen

captures for Level, Channel Plan Scan, Return Spectrum,

and Autotest measurements and these les can then be

transferred to a standard USB ash drive for upload into

the ViewPoint Express software for reporting, analysis, and

printing (optional).

Limit Testing

Limit test data allows for test uniformity and exible eld

storage, and may be automatically scored against specied

limits and assembled into reports.

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