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Chapter 4 197
Key Function Descriptions
Key Function Tables
Table 4-3 Marker Functions
Marker Keys Access Key Description
COUNTER ON OFF FREQ COUNT Switches the precision frequency counter
ON and OFF (activating a marker if none is
present), and displays counter results when
the counter is on.
COUNTER RES FREQ COUNT Adjusts the resolution of the frequency
counter readout.
FREQ COUNT — Turns the frequency counter on (activates a
marker if none is present) and accesses a
menu of counter and marker functions.
MARKER → CF MKR→, PEAK
SEARCH
Sets the center frequency equal to the
marker frequency.
MARKER → CF STEP MKR→ Sets the center frequency step size equal to
the marker frequency. The step keys change
the center frequency in increments equal to
the step size.
MARKER → REF LVL MKR→ Sets the reference level equal to the
amplitude of the marker.
MARKER 1/DELTA MKR Sets the marker readout to a frequency
equal to the reciprocal of the delta value.
For use with zero span mode.
MARKER DELTA FREQ COUNT,
MKR, PEAK
SEARCH
Reads the difference in amplitude and in
frequency (or time when the span equals 0
Hz) and displays these values.
MARKER NORMAL FREQ COUNT,
MKR
Activates a single marker and places it at
the center of the trace.
MARKERS OFF MKR Turns all markers off and blanks the
softkey menu.
MKR — Activates a marker and accesses a menu of
marker functions.
MKR→ — Activates a marker and accesses a menu of
"marker-to" functions.
MKR ∆→ CF MKR→ Sets the center frequency equal to the delta
frequency value.
MKR ∆→ CF STEP MKR→ Sets the center frequency step size equal to
the delta frequency value.
MKR ∆→ SPAN MKR→ Sets the frequency span equal to the delta
frequency value.
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