General; Controls, Indicators, And Connectors; Operation - Motorola R-2002A Manual

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4-1. GENERAL
SECTION 4
OPERATION
4-2. This section contains information for the operation of the Communication System Analyzer.
4-3. CONTROLS, INDICATORS, AND CONNECTORS
4-4. The analyzer controls, indicators, and connectors are shown in Figures 4-1 through 4-3 and listed with
their functions in Table 4-1.
Table 4-1. Controls, Indicators, and Connectors
Item Description Function
FRONT PANEL (fig. 4-1)
Keyboard Twelve-key pushbutton Enters variables into memory/enters manual
keyboard variables/selects variables to be used from the
memory.
"
Line cursor key Moves the cursor down to the next line that may
be changed. Preset permanent entries are skipped.
Cursor will move down only. When on last line,
will return to top line with next entry.
<l
Horizontal cursor key Moves the horizontal cursor left to the next entry
position that may be changed. When in the last
left position, the cursor will move to the far right
with the next entry.
0 through 9 Numerical keys Used to select from the memory a stored value
to be used, or to enter directly a value to be used.
• Intensity
Stacked concentric
• Focus potentiometers
• Intensity - center Controls the intensity of the scope presentation.
(small) knob
• Focus - outside Controls the focus of the scope presentation.
(large) knob
Dispr/Sweep control Potentiometer Controls the frequency span (1-10 MHz) displayed
on the CRT when unit is used as a spectrum
analyzer. Provides sweep width control when
either sweep function (SWP 0.01-1 MHz or SWP
1-10 MHz is selected.
4-1