■ 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 Certication
■ 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 efcient
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 specic 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
verications 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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Specications 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-Dened 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-Dened Autotests
A signicant 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 specied
limits and assembled into reports.
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STANDARD FEATURES
The 120 DSP includes all of the following features standard.
Basic Signal Level Meter
Job Management
■ Create and close out your
jobs from this screen
■ Shows what channel plan
and how many tests have
been run on a particular
job
LED Flashlight
■ High intensity LED for
working in dark spaces
■ Control is provided
through the Fuction menu
for quick access from any
screen
OPTIONAL FEATURES
The following optional features are available for the 120 DSP.
Easy Setup & Conguration
■ Global conguration
settings can be applied
to all users of the device
while other settings can
be tailored to suit each
user
■ Setting adjustments can
be locked out using the
ViewPoint software
Simple Network Management
■ Controls Ethernet
connection
■ Provides connection
details such as MAC, IP,
gateway and DNS
Forward Spectrum Measurement
■ Provides the ability
to view raw forward
spectrum traces from 50
to 1000 MHz
■ Fast DSP spectrum
snapshots give the user
extreme speed to capture
fast transients on the
downstream
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Analog & Digital HUM Measurement
■ Measure the amplitude
of 50/60 Hz, 100/120
Hz, and low frequency
interference present on
analog or digital channels
■ Provides Pass/Fail results
for limit sets
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STANDARD MEASUREMENT FUNCTIONS
The 120 DSP includes all of the following measurement functions standard.
Basic Signal Level Meter
Analog Level Measurement
■ Shows the analog
channel and its
associated measurements
■ Provides Pass/Fail results
for limit sets
Digital Level Measurement
■ Shows the level, MER
and BER of a QAM
channel
■ Users can change the
display to view BER over
time, Equalizer Tap and
Constellation
Equalizer Tap Display
■ Displays the equalizer
stress and whether the
DOCSIS specication is
being broken
■ Shows the level, MER
and BER and provides
Pass/Fail results for limit
sets
Single Frequency Level Measurement
■ Shows the level of the
analog carrier
■ Displays the Carrier to
Noise ratio of the analog
carrier
QAM Constellation
■ Shows the constellation
diagram of the specied
QAM channel
■ Shows the level, MER
and BER and provides
Pass/Fail results for limit
sets
Bit-Error Rate Display
■ Shows the BER on a
graph with a 150 second
measurement period
■ Shows solid green lines
for pre-errors and solid
red lines for post-errors
Return Spectrum Measurement
■ Provides the ability to
view raw return spectrum
traces from 4 to 110 MHz
■ Fast DSP spectrum
snapshots give the user
extreme speed to capture
fast transients on the
upstream
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Scan & Tilt Measurement
■ Full channel plan scan
displays the frequency
response of the entire
channel lineup
■ Provides Pass/Fail results
for limit sets and color
coded channels, green for
digital and blue for analog
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SPECIFICATIONS
Level Measurement
Channel Bandwidth
Amplitude Range -40 dBmV to +50 dBmV (20 to 120 dBmV)
US Models: 6 MHz
EURO Models: 8 MHz
Basic Signal Level Meter
Modulation Types
Analog Measurement
Accuracy
Digital Measurement
Accuracy
Resolution 0.1 dB
Return Spectrum Measurement
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 Range 8 vertical divisions (when marker bar is hidden)
Spurious Free Dynamic
Range
Analog: NTSC, PAL B/D/G/H/I/K/N & SECAM B/D/G/H/I/K/L
Digital: 16/32/64/128/256 QAM Annex A, 64/256 QAM Annex, Annex C
±0.75 dB @ 77 °F (25 °C)
±2.0 dB from 0 to 122 °F (-18 to 50 °C)
±0.75 dB @ 77 °F (25 °C)
±2.5 dB from 0 to 122 °F (-18 to 50 °C)
60 dB @ 25˚ C (77˚ F) (+50 dBmV)
Sensitivity -30 dBmV (4 MHz to 110 MHz)
Digital Channel Measurement
Deep Interleave
Compatibility
Downstream MER
Downstream BER
Symbol Rates ≥ 0.64 msps; ≤ 7.0 msps
Yes
40 ±2 dB @ +6 dBmV RF Input Level
34 ±2 dB @ -6 dBmV RF Input Level
Method: True BER, derived from code 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
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Carrier-to-Noise Measurement (In-service, non-scrambled standard channels only)
Basic Signal Level Meter
Minimum Optimal Input
Level for Full Dynamic
Range
Dynamic Range 50 dB
Resolution < 0.5 dB
Tilt Measurement
Max Number of Carriers 10
High/Low Delta Resolution 0.1 dB
Scan Video, audio, pilot, and digital carriers
+10 dBmV
(although not optimal, signals below this level can be measured)
SPECIFICATIONS FOR OPTIONAL FEATURES
Forward Spectrum Measurement
Frequency Range 50 to 1000 MHz
Resolution Bandwidth
10, 30, 100, and 300 kHz
1 and 3 MHz
Display Spans User-selectable in 1 kHz steps
Display Scale 1, 2, 5, or 10 dB/division
Display Range 8 vertical divisions (when marker bar is hidden)
Spurious Free Dynamic
Range
Sensitivity -40 dBmV (50 MHz to 1 GHz)
Analog & Digital HUM (In-service, non-scrambled standard channels only)
Minimum Input Level 0 dBmV
Range 0 to 5%
Resolution 0.1%
Accuracy ±0.5%
60 dB @ 25˚ C (77˚ F) (+50 dBmV)
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Basic Signal Level Meter
PHYSICAL & ENVIRONMENTAL SPECIFICATIONS
Physical Specifications
Construction Rugged plastic housing
Control Water resistant front panel solid membrane keypad
Display
Annunciators Audible annunciator for key strokes
Flashlight High intensity LED (0.25W)
Dimensions w/o Case
(H x W x D)
Dimensions w/ Case
(H x W x D)
Weight w/o Case 1.00 lbs (0.45 Kg)
Weight w/ Case 1.50 lbs (1.09 Kg)
Available Interface Types
RF Test Port Replaceable F-Type connector
USB Mini-USB 2.0 Type B female receptacle
Ethernet RJ45 Ethernet Port (10/100 Mbps)
Battery & Power Specifications
Operating Time 6 hours, dependant on use
Charge Time 6 hours
Battery
Power Adapter Input
International Power
Adapters (Optional)
Power Adapter Output
Data & Charge Cable USB Type A male plug to Mini-USB Type B male plug
Environmental Specifications
Storage & Operating
Temperature
Color LCD screen
320 x 240 pixels (approx 3.5” x 2.67”)
7.00 x 4.50 x 1.75 in (20.32 x 13.97 x 5.08 cm)
8.00 x 5.50 x 2.75 in (22.86 x 16.51 x 7.62 cm)
Two 2600 mAh @ 3.7V Li-Ion internal battery, factory
replaceable
Type: 2-prong un-grounded male plug (NEMA 1-15p)
Voltage: 100 to 240 VAC ~ 50 to 60 Hz
Current: 0.3 A Max
Type: Interchangeable clip-on, US adapter (included)
Euro: CEE 7/16 Europlug, Type C
UK: BS 546, Type D
AUS: AS/NZS 3112
Type: USB Type A female receptacle
Voltage: 5 VDC
Current: 1.0A
-18˚ to +50˚ C (0˚ to 122˚ F)
INCLUDES THE FOLLOWING:
120 DSP Meter
Protective Carrying Case with Belt Clip
Shoulder Strap
AC to DC Power Adapter & Battery Charger
USB Charge & Data Cable
(Mini-B Male to Standard-A Male)
USB Flash Drive Adapter
(Mini-B Male to Standard-A Female)
AVAILABLE SOFTWARE:
ViewPoint Express Conguration Software
for the 120 DSP
P/N 0930215000
ACTS™ Software
P/N 0930144000
OPTIONAL ACCESSORIES:
Precision RF Coaxial Test Cable (I/O-15)
P/N 2071527048
CL-9 Vehicle Power Adapter with USB cable
P/N 0610169007
CL-9 Vehicle Power Adapter without USB
cable
P/N 0610169004
Mini-USB Power/Data Cable (I/O-20)
P/N 2071585004
Euro Power Adapter
P/N 0610169012
UK Power Adapter
P/N 0610169013
Australian Power Adapter
P/N 0610169014
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