R&S FSH series, Quick Start Manual, Page: 83 / 130

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Using markers is also an effective way to shift
the trace maximum so that it coincides with the
top of the measurement diagram. If the marker
is positioned on the trace maximum (as in the
example), the reference level can be set to the
marker level by entering the following keystrokes:
„
Press the MARKER-> key.
„
Press the CENTER=MKR/LEVEL softkey.
„
Select LEVEL=MARKER LEVEL in the selection
box by using the rotary knob or the cursor keys
(
∧
or
∨
).
„
Press the ENTER key.
The reference level is then set to the measured
level indicated by the marker. Only a few
keystrokes are needed to set the optimal reference
level.
3.3.3 Frequency Measurements
The R&S FSH’s trace displays 631 measurement
points (frequency points). The marker is always
positioned on one of these measurement points.
The R&S FSH calculates the marker frequency
from the measurement point frequency, and the
center frequency and frequency span that have
been set. The measurement-point resolution, and
consequently the accuracy of the marker frequency
readout, therefore depend on the frequency span
that has been selected.
The R&S FSH has a frequency counter to increase
the accuracy of the marker-frequency readout, It
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