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Trilithic XFTP 2011346110 Model Three Signal Meter With Constellation Display (2011346110)
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The Model Three signal level meter is ideal for CATV installations - featuring a wide range of tests for analog and digital channel measurements. This rugged instrument can be customized, streamlining tests and making your installations and troubleshooting more efficient.
This signal meters features include the optional constellation display as well as learned channel plans, digital channel measurement, spectrum measurement, hum, voltmeter, and data logging.
- Level measurement
- Voltmeter function
- Hum measurement
- Saves measurement files for viewing or uploading to optional ToolBox software
- Tilt/Favorite group display
- Single-Channel display
- Scan display
- Spectrum display
- Digital channel measurements
- Data logging
- Limit test
Digital Channel Measurement
The Model Three can measure the channel power
of QPSK and QAM channels when testing or
troubleshooting your digital transmission system. This
function also measures MER and pre- and post-BER for
QAM channels (including deep interleave).
The Constellation display (optional) allows the operator
to quickly analyze 64 and 256 QAM downstream
channels verifying quality or identifying impairments.
This feature is field-installable and can be added at the
Wide Channel Scans
The Model Three can display up to 126 channels in a
single view or a total of 170 channels can be displayed
in overlapping views. The settings for the active
measurement mode can be accessed at the press of
a single key, without going through nested menus.
This allows the operator to quickly make changes in
the settings and return to measurement mode saving
As an aid to troubleshooting, the operator can choose
LIVE, MAX, or Δ P-P (variation) signal level displays.
In Spectrum mode the full spectrum or frequency
spans from 2.5 MHz to 62.5 MHz can be displayed.
The Δ MARKER function is included in Spectrum and
Single-Channel Spectrum modes. MAX HOLD captures
transient events. The Model Three also has an Average
display function for Spectrum.
The Hum measurement function is used to troubleshoot
interference that may result from a defective power
supply or faulty or overloaded power inserters. This
mode includes 60 Hz and 120 Hz (or 50 Hz and 100 Hz)
and low pass (1 to 400 Hz) measurements.
The Model Three is equipped with a built-in voltmeter
function that can be used for troubleshooting power
supplies or power drops. The measurement is displayed
as a bar graph with a numerical readout and can
accommodate AC or DC voltages up to 100 Volts.
A significant time and cost savings feature of the Model
Three is the capability to group tests into automatic
tests that can be executed with a single keystroke.
Several Auto-Tests can be stored in the meter and
recalled as needed. These may include Level, Tilt,
Spectrum, QAM, Hum, and Limit tests. Limit test data
allows for test uniformity and flexible field storage, and
may be automatically scored against specified limits
and assembled into reports.
Automated Proof of Performance
At the press of a key, the Model Three performs FCC
Part 76 level-related tests including: Visual Carrier
Levels, Δ V/A, Max Δ Visual Carrier Levels, and Δ
Adjacent Visual Carrier Levels. Measurements can
be executed immediately or programmed to occur
at timed intervals, unattended, as an FCC 24-hour
variation test. The test results can then be compared
against FCC limits, or limits set by the user.
Flexible Data Storage
The operator can select and save the test data of
the Level, Tilt, Spectrum, Scan, QAM, Hum, Limit,
and Auto-Test measurements and recall them as
needed. Scan, Spectrum, and Limit files can be viewed
graphically. Any combination of up to 30 Level, Tilt,
Spectrum, Hum, QAM, or scans, or up to 22 Limit test
measurement files may be saved on the Model Three.
These data records may be uploaded to a PC through
the optional ToolBox software for reports, analysis, and
Extended Battery Life, Fast Charging
The Model Three’s battery provides five hours or more
of continuous use between charges. One hour of fast
charging from AC or vehicle power provides nearly two
hours of extended operation.
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