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MIXER PEAKING
Type 491
Centered
FINE RF CENTER FREQ
Display of nominal
INTENSITY
OFF or EXT REF FREQ
PHASE LOCK Controls
brightness
IN
INT REF FREQ
Adjusted for optimum
FOCUS and ASTIGMATISM
display definition
As desired
SCALE ILLUM
Adjusted for a
P O S I T I O N (Horizontal
horizontally centered
and Vertical)
sweep on the grati-
cule baseline
2 mS
TIME/DIV
CAL
VARIABLE
TRIGGER
SLOPE
+
FREE RUN
LEVEL
INT
SOURCE
MHz/DIV
DISPERSION RANGE
5 MHz/div
DISPERSION-COUPLED
RESOLUTION
All switches in off position
IF ATTENUATOR dB
Midrange (000)
IF CENTER FREQ Controls
OFF
VIDEO FILTER
LIN
VERTICAL DISPLAY
CCW
GAIN
ON
POWER
6-12
