Audio Frequency Measurement; Measurement Procedure - Agilent Technologies PSA Series Manual

Audio Frequency Measurement

This procedure describes how to make a Audio Frequency measurement. In this
measurement example, a signal generator is the UUT and is adjusted to deliver a
test signal. Audio Frequency measurement is used to measure and display the
frequency of an audio signal. The measurable frequency range is from 20 Hz to
250 kHz.
Make sure your input audio signal is under the allowed maximum safe input level
CAUTION
printed near the input connector.
You can make Audio measurements without a Power Meter since it is the PSA that
NOTE
measures the Audio Frequency.
Make sure the input and output impedance are matched. The PSA audio input has a
TIP
high impedance of 100 kΩ. The output impedance of your audio source may
impact the RMS level reading.

Measurement Procedure

Figure 3-23 Audio Test Connection Diagram
Press the
CAUTION
any changes to the UUT or to the measuring receiver settings after you make your
first measurement.
Step 1. Set up the system. See
Step 2. Make sure you have selected
Step 3. Adjust the signal generator to the desired settings for your test.
Chapter 3
key to optimize the measuring receiver configuration if you make
Restart
Figure 3-23, "Audio Test Connection
Measuring Receiver
Making Measurements
Audio Frequency Measurement
Diagram.".
mode in the key menu.
MODE
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