Chapter 4 199
Key Function Descriptions
Key Function Tables
Table 4-4 Control Functions
Control Keys Access Key Description
A+B→A TRACE Adds the contents of trace A with those of
trace B and places the result in trace A.
A-B→A ON OFF TRACE When on, this function continuously
subtracts the contents of trace B from those
of trace A and places the result in trace A.
An M appears on the left side of the display
when this function is on.
A-B+DL→A ON OFF TRACE When on, this function continuously
subtracts the contents of trace B from those
of trace A, adds the display line to the
result, then places the final result in trace
A. An M appears on the left side of the
display when this function is on.
A EXCH B TRACE Exchanges the contents of trace A with
those of trace B, then places traces A and B
in the view mode.
ALL AUTO COUPLE Couples all "AUTO" functions; resolution
bandwidth, video bandwidth, sweep time,
input attenuation, center frequency
step-size, and amplitude units.
ANNOT HELP DISPLAY Displays descriptions of the annunciators
that appear on the left-hand side of the
screen indicating which functions are
turned on or off.
ANNOT ON OFF DISPLAY Switches the display annotation on or off.
ATTEN AUTO MAN AUTO COUPLE Sets the spectrum analyzer input
attenuator, so it is either coupled to the
reference level (AUTO) or manually
adjustable (MAN).
AUTO COUPLE — Accesses a menu of coupled-mode functions.
B-DL→B TRACE Subtracts the display-line value from the
contents of trace B, then places the result in
trace B.
BACK SPACE DISPLAY Deletes the last character placed in the
current title.
BLANK A TRACE Blanks the contents of trace A from the
display.
BLANK B TRACE Blanks the contents of trace B from the
display.
BW — Accesses the bandwidth functions menu.
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