9
Model Three - Operation Manual
What is the Model Three?
Trilithic’s
Model Three Signal Level Meter
is designed to provide you
with optimal features for reduced cost.
Amplitude measurements are fast and efficient. Carrier amplitudes are
displayed singly, as a group (up to 12 “favorites”), or as a full-span display.
This product also features a single-channel Spectrum mode, which
displays the presence of interfering beats in addition to the carrier
amplitudes. The device lets you take the direct power measurement of
QAM signals with Constellation diagram display (optional) and pre- and
post-BER and MER readings, Hum measurements, data logging, and also
supports a voltmeter function.
Four user-defined channel plans may be stored, and the Model Three can
perform a complete test of all channels in the selected user channel plan
to specified limits at the press of a single key. It can also be set to
automatically perform QAM, Level, Spectrum, Tilt (Favorite), Hum, and
Limit tests at programmed intervals, unattended.
The Model Three can save files for QAM, Level, Tilt, Spectrum, Scan, Limit
test, Hum, and Auto test measurements. These files can be recalled to
display the recorded data, or Scan, Spectrum, and Limit files can be
viewed graphically. The Model Three also makes it easy to obtain a hard
copy of installation data or documentation of a problem via the optional
Model Three ToolBox software.
The device is the ideal signal level meter for HFC installations. It is
durable, has many features, and is simple to use in a wide range of
conditions. Its tough, plastic shell and protective jacket make the Model
Three highly resistant to damage from shock and impact. When not in
use, the instrument and its accessories are contained in a carrying case.
The Model Three is rugged and convenient to use. It weighs only 1.76
pounds and can be carried and operated with one hand. All measurement
functions are accessible via a single keystroke, and, with the Fast Setup
function, settings for each measurement mode can be accessed at the
press of a single key without going through nested menus. Other
functions are simplified though the combination of dedicated function keys
and “soft keys.”
2.
Introduction
Chapter 2
