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3.3.4
Harmonic Measurements of a
Sinewave Signal
Since a spectrum analyzer can resolve different
signals in the frequency domain, it is ideal for
measuring harmonic levels or harmonic ratios.
To speed up these operations, the R&S FSH has
marker functions that deliver fast results with only
a few keystrokes.
As above, a signal generator with a 100 MHz output
frequency and an output level of –20 dBm is used
in the following measurement example.
First, the R&S FSH is set to its default settings to
show all measurement steps that are needed.
Press the PRESET key.
The analyzer displays the frequency spectrum
from the largest available span. At 100 MHz,
the generator signal is displayed as a line. The
generator harmonics are displayed as lines at
frequencies that are multiples of 100 MHz.
To measure the second harmonic ratio, set the start
and stop frequency as follows:
Press the FREQ key.
The softkey menu opens entering the frequency.
Press the START FREQ softkey.
Enter '50' using the numeric keypad and
confi rm the entry with the MHz key.
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Summary of Contents for FSH series
Page 1: ...R S FSH Handheld Spectrum Analyzer Quick Start...
Page 29: ...27 E 02...
Page 72: ...70 PD 1309 6269 62 02...
Page 130: ...128 PD 1309 6269 62 02...