Interference Analyzer
R&S
®
Spectrum Rider FPH
267
User Manual 1321.1011.02 ─ 11
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.
1. Press [MEAS] key.
2. Select "Settings" softkey.
3. Select "Threshold Tone Frequency" softkey.
The R&S Spectrum Rider opens an input field to define the threshold.
4. 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.
Defining the gain of the audio signal
The change of frequency of the audio signal is a constant change of frequency. It is
either one octave per 20 dB or one octave per 40 dB.
1. Press [MEAS] key.
2. Select "Settings" softkey.
3. Select "Tone Gain" softkey.
The R&S Spectrum Rider opens a submenu to define the octave settings.
4. Select the gain setting you prefer.
Defining the volume of the audio signal
The R&S Spectrum Rider allows you to adjust the volume of the audio signal.
1. Press [MEAS] key.
2. Select "Settings" softkey.
3. Select "Tone Volume" softkey.
The R&S Spectrum Rider opens an input field to define the volume.
4. Define a volume.
The volume is a percentage from 0% to 100% with 100% being the loudest.
11.3.4.3
Using Limits
The R&S Spectrum Rider allows you to define limits within which the signal level must
be in order to be recognized as a signal.
Working with Maps
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