R&S FSH Getting Started
Using the Spectrum Analyzer
Quick Start Guide 1309.6269.12 - 09 54
2.1.3 Measuring CW Signals
A basic task for spectrum analyzers is to measure the level and frequency of sinewave
signals. The following examples illustrate an effective way of performing these
measurements.
A signal generator, e.g. R&S SMBV provides the signal source.
Test setup
Connect the RF output of the signal generator to the RF input of the R&S FSH.
Signal generator settings:
Frequency: 700 MHz
Level: -30 dBm
Measuring the level
► Press the PRESET key.
The R&S FSH is reset to its default state.
After the preset, the R&S FSH displays the frequency spectrum over its full frequency
span. At 700 MHz, the generator signal is displayed as a vertical line.
To analyze the generator signal at 700 MHz in more detail, reduce the frequency span.
► Press the FREQ key.
The R&S FSH opens an input field to enter the center frequency.
► Enter a center frequency of 700 MHz.
The signal is now in the center of the display.
► Press the SPAN key.
The R&S FSH opens an input field to specify the span.
► Enter a span of 10 MHz.
The R&S FSH now displays the generator signal with a higher resolution.
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