198 Chapter4
Key Function Descriptions
Key Function Tables
MKR 1/∆→ CF MKR→ Sets the center frequency equal to the
reciprocal of the delta value. For use in zero
span mode.
MKR 1/∆→ CF STEP MKR→ Sets the center frequency step size equal to
the reciprocal of the delta value. For use in
zero span mode.
MKR NOISE ON OFF MKR Turns the marker noise function on or off.
When it is on, it normalizes the equivalent
amplitude of the measured noise to a 1 Hz
bandwidth.
NEXT PEAK FREQ COUNT,
PEAK SEARCH
Moves the activemarker tothe next-highest
trace peak relative to the current marker
position.
NEXT PK LEFT PEAK SEARCH Finds the next peak to the left of the
current marker position.
NEXT PK RIGHT PEAK SEARCH Finds the next peak to the right of the
current marker position.
PEAK EXCURSN PEAK SEARCH Defines what constitutes a peak on a trace.
The selected value specifies the amount
that a trace must increase then decrease in
order to be a peak.
PEAK SEARCH — Places a marker at the highest point on a
trace and accesses a menu of marker
functions.
PEAK SEARCH FREQ COUNT Places a marker on the highest point on a
trace and displays the marker frequency
and amplitude.
PEAK THRESHLD PEAK SEARCH Sets the minimum amplitude level from
which a peak on a trace can be detected.
SIG TRK ON OFF MKR Switches the signal tracking function on
and off. When it is on, it keeps the active
marker on the peak of the signal where it
was initially placed and keeps the center
frequency at the marker value. A K appears
on the left side of the displayto indicate this
function is active.
Table 4-3 Marker Functions
Marker Keys Access Key Description
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