R&S FSH3 Measurements on CW Signals
2 Getting Started
This section explains the basic operation of the Handheld Spectrum Analyzer R&S FSH3 using some
simple measurements as examples. A more detailed description of operation and functions, such as
selecting menus and setting measurement parameters, is given in section 3 of the Manual.
Measurements on CW Signals
A basic task performed by Spectrum Analyzers is measuring the level and frequency of sine signals.
The following examples illustrate the most effective way of performing these measurements with the
R&S FSH3.
A signal generator is used as a signal source, e.g. the Signal Generator R&S SML.
Measurement setup:
Connect the RF output of the signal generator to the RF input of the R&S FSH3.
Signal generator settings:
Frequency 100 MHz
Level -30 dBm
Level measurement
First, set the R&S FSH3 to its default settings to show all the operating steps that are required.
¾ Press the PRESET key.
The analyzer displays the frequency spectrum from
100 kHz to 3 GHz – the R&S FSH3’s maximum
Frequency Span. At 100 MHz, the generator signal is
displayed as a vertical line. Generator harmonics can
also be seen as lines at frequencies which are integer
multiples of 100 MHz.
To analyze the generator signal at 100 MHz in more
detail, reduce the Frequency Span. Set the
R&S FSH3’s Center Frequency to 100 MHz and
reduce the span to 10 MHz.
1145.5973.12 2.1 E-6
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