Spectrum Analyzer Mode
R&S
®
Spectrum Rider FPH
124
User Manual 1321.1011.02 ─ 11
6.1.1.1
Using an Audio Signal to Locate Signal
You can configure the R&S Spectrum Rider to play back an audio signal when it
receives a signal. The audio signal changes its volume and frequency, depending on
the strength of the received signal.
1. Press [MEAS] key.
2. Select "Tone" softkey.
The R&S Spectrum Rider opens a submenu to select the tone measurement
mode.
Activate the tone measurement mode
► Select the "Tone" menu item.
The R&S Spectrum Rider turns the audio signal on.
You will also see a marker, M1 display on the frequency spectrum. Position the
marker to the signal of interest for tone measurement mode.
The R&S Spectrum Rider allows you to define the various aspects of this audio signal.
Defining a squelch level
The squelch level defines the signal level above which the audio signal starts to play.
1. Select the "Squelch Level" menu item.
The R&S Spectrum Rider opens an input field to define the squelch level.
2. Enter a squelch level in dBm as required.
Defining the threshold of the audio signal
The audio signal has a specific frequency that is coupled to a specific signal level, the
threshold. As the signal you are receiving during a measurement becomes stronger or
weaker, the audio signal changes its frequency:
●
When the signal becomes stronger, the frequency of the audio signal gets higher
●
When the signal becomes weaker, the frequency of the audio signal gets lower
You can define the threshold of the base tone as necessary.
1. Select the "Threshold Tone Frequency" menu item.
The R&S Spectrum Rider opens an input field to define the threshold.
2. Enter a threshold level in dBm as required.
Note that it may be possible that the audio signal frequency becomes so high or low
that it is no longer audible.
Performing Spectrum Measurements
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