Section 3
OPERATING INSTRUCTIONS
3-1 GENERAL
R2600 Series Communications System Analyzers
are des
igned specifically for the service and
monitoring of radio communications equipment.
This product represents a breakthrough in
simplicity of operation. In place of numerous
meters, keys and controls, the analyzer employs
an LCD display which simultaneously presents
control and data displays. A simplified front
panel, utilizing soft keys, cursor movement keys,
a numeric key pad, an analog tuning control and
other dedicated function keys all combine to
make the unit extremely easy to learn and very
efficient to use.
Primary operating modes of the unit are
MONITOR, GENERATE, DUPLEX and
SWEEP GENERATOR. They are accessed
through the RF Control display area at the upper
right of the screen (figure 3-1). Within these
modes of operation, various measurement
functions may be selected in order to measure
and diagnose many types of radio equipment
under test.
RF data display, voltmeters, distortion meter,
SINAD meter, frequency counter and modulation
decoder functions are available through the Meter
display area at the upper left of the screen.
Spectrum analyzer, oscilloscope and bar graph
displays are available through the Display area at
the lower left of the screen.
Control of the internal modulation synthesizer
and level selection for externally applied modu-
lation are provided through the Audio area at the
lower right of the screen.
Further explanation of the function of each of
these screen areas can be accessed through use of
the HELP key to the lower right of the screen.
3-2 BASIC OPERATION
Control of the unit and selection of data to be
displayed are done through the use of three m
ain
windows which simultaneously appear on this
screen.
These three main windows, or cursor zones, are
accessed simply through a cluster of three
CURSOR ZONE keys at the top center of the
unit. The location where the cursor rests within
each zone is known as a cursor field. To control
the unit and enter data, all operator inputs are
made at highlighted cursor field locations
(brighter-face type).
For further simplicity, softkeys, with customized
on-screen labels interact with the screen to
provide a unique menu of entry options for each
cursor field. This greatly reduces the number of
keys and having to search through unrelated
controls to find the one that's needed.
3-2.1 Remote Operation
All R2600 Series Communications System
Ana-
lyzers are equipped with a standard RS-232 inter-
face. Optionally, the R2600 is equipped with an
IEEE 488 (HP-IB / GPIB) interface. Either of
these interfaces may be used to remotely control
the analyzer using a set of commands, queries,
and responses that are defined in the General
Dynamics R2600 Series Communications System
Analyzer Programming Reference Manual (68-
80309E55).
19
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