R&S FSMR, Руководство по эксплуатации, Страница: 83 / 955

R&S FSMR Measurement Examples
1166.3311.12 2.17 E-1
Example 4: Audio Measurements with the Audio Analyzer mode
Measurement
The FSMR includes an audio analyzer functionality. Measurements of audio signals will be performed in
the audio analyzer mode with highest accuracy. The FSMR will automatically handle all required
settings.
Main Receiver Functions
The audio analyzer functions are available in the Measuring Receiver AUDIO -mode. All required
settings and evaluations can be reached from the AUDIO main menu.
Measurement Setup
Fig.2-13 Audio measurement setup
Connect the signal generator LF (low frequency) output with the FSMR Audio input.
The following settings are used on the generator:
1. PRESET the generator.
2. Set LF output to ON .
3. Set the LF output level to 1 volt.
4. Set the LF output frequency to 1 kHz.
Measurement Sequence – Audio Measurements
The following steps are performed:
1. Measure the audio level and frequency.
2. Measure the frequency response of the audio filters.
3. Measure the influence of the input impedance.