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03 | Keysight | U8903B Analog Audio Analyzer – Demo Guide
Demo 1 . Performing Basic Audio Measurements
Objective
– Perform the basic audio measurement functions such as
frequency, Vac, THD+N ratio, and SINAD . (A maximum of four
measurement functions can be turned on and viewed on the
U8903B front panel .)
Instructions
Set the U8903B to its default
settings
Select the generator
Generate 1 kHz, 1 Vrms tone
(see Figure 2)
Instructions
Set the analyzer to perform the
four measurements
Set up measurement function
No. 3
Set up measurement function
No. 4
Set analyzer input
(There are two options
to do this)
Option 1. Use a BNC cable
Option 2. Loopback internally
Turn on the analyzer channel
Refer to Figure 3 for results
Keystrokes
Press [Preset]
Select {To Factory Settings}
Select "Yes" by pressing [Enter]
Select {Return}
Select the generator window by
pressing [ ] or [ ]
Press [1] to select generator AG1
Select {Waveform Config} > {Amplitude}
Press [1] > {Vrms} > {Return}
Toggle the [ON/OFF] button to ON
Set the frequency to 1 kHz if needed
(the default is 1 kHz)
Select {Return}
Keystrokes
Highlight the analyzer window by
pressing [ ] or [ ]
Press [1] to select analyzer AA1
Select {Function} > {Function No}
Press [ ] to select {3} > [Enter]
Select {Meas Func}
Use [ ] and select {THD+N Ratio}
Select {Unit} > {%} > [Enter]
Select {Function} > {Function No}
Press [ ] to select {4} > [Enter]
Select {Meas Func}
Use [ ] and select {SINAD}
Press [Enter]
Select {Return}
Connect Channel 1 on the generator to
Channel 1 on the analyzer
Select {Input Config} > {Connector} >
{Loopback} > [Enter] > {Return}
Toggle [ON/OFF] to ON
Figure 2 . 1 kHz, 1 Vrms generation
Figure 3 . Analog analyzer measurement
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