TABLE 2-1. CONTROLS, INDICATORS,
AND
CONNECTORS
ITEM DESCRIPTION
FRONT
PANEL
(figure 2-1)
FUNCTION
Power
Batt indicator
AC
indicator
Oven Ready indicator
KEYPAD
~
~
othrough 9
CRT
• Intensity
o Focus
Dispr/Sweep Control
RF
Scan Control
Three-position toggle
switch
LED (red)
LED (red)
LED (red)
Twelve-key pushbutton
keypad
Line cursor key
Horizontal cursor key
Numerical keys
Cathode Ray Tube
Stacked concentric
potentiometers:
Small center knob
Large outside knob
Potentiometer
Analog Synthesizer Tuning
(AST)
On position energizes all circuitry.
Standby position removes DC from all circuitry except the
frequency standard
and
battery charger.
At off, the battery charges
if
equipment is connected to
an
AC
power source.
Illuminates when equipment uses DC power.
Illuminates when equipment
is
connected to an
AC
power
source. Position
of
POWER
switch has no effect
on
in-
dicator. Equipment automatically switches to
AC
power
source when connected to AC line voltage.
Illuminates when optional frequency standard oven has
stabilized. Continuously illuminated with the
TCXO
fre-
quency standard.
Enters variables into microprocessor memory and onto
CRT
screen, selects variables from the memory for display,
changes previous entries.
Moves the cursor down only to the next available line on the
screen, skips preset permanent entries, from the last line it
returns to the top line.
Moves the horizontal cursor left to the next available posi-
tion
that
may be changed. From the last left position, the
cursor moves to the far right with the next entry.
Enter a value directly
or
select a value stored in the
memory.
8 cm x
10
cm screen displays all functions, generated
or
monitored, in both analog and digital form. Also displays
all control settings and numerical values, entered
or
preset.
Controls display intensity.
Controls display focus.
Controls the frequency span (1-10 MHz) during Spectrum
Analyzer
DlSPLA
Y.
Provides sweep width control during
SWP
FUNCTION (0.01-1
MHz
or
1-10 MHz).
Manually scan any displayed frequency by rotating this
control clockwise
or
counterclockwise
at
the rate
of
32 fre-
quency steps per revolution. Position
of
display cursor de-
termines step size.
2-2
~
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