5-9
Hardkey/Softkey Reference
Analyzer Functions
is used to access three different noise reduction
techniques: sweep-to-sweep averaging, display smoothing,
and variable IF bandwidth. Any or all of these can be used
simultaneously. Averaging and smoothing can be set
independently for each channel, and the IF bandwidth can
be set independently if the stimulus is uncoupled.
measures the absolute power amplitude at input B.
calculates and displays the complex ratio of input B to
input R.
deletes the last character entered.
sets the background intensity of the LCD as a percent of
white. The factory-set default value is stored in
non-volatile memory.
(Option 010 only) sets the time-domain bandpass mode.
selects the bandwidth limit line choice. This selection
leads to the menu used to define and test bandwidth limits
of a bandpass filter. Refer to the “Using Bandwidth Limits
to Test a Bandpass Filter” section in the “Making
Measurements” chapter of the user’s guide.
toggles an annunciator which sounds to indicate
completion of certain operations such as calibration or
instrument state save.
turns the limit fail beeper on or off. When limit testing is
on and the fail beeper is on, a beep is sounded each time a
limit test is performed and a failure detected. The limit
fail beeper is independent of the warning beeper and the
operation complete beeper.
toggles the warning annunciator. When the annunciator is
on it sounds a warning when a cautionary message is
displayed.
switches off the analyzer's display. This feature may be
helpful in prolonging the life of the LCD in applications
where the analyzer is left unattended (such as in an
automated test system). Pressing any front panel key will
restore the default display operation.
adjusts the brightness of the color being modified. Refer to
the section on adjusting the display color in the “Using
Measurement Functions” chapter of the user’s guide for an
explanation of using this softkey for color modification of
display attributes.
displays the measured bandwidth value to the right of the
pass/fail message.
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