Making Measurements

 

Measurements

Audio

The audio function measures the audio frequency and voltage of the demodulated

 

signal from the mobile phone or from a number of other sources selectable using AF

 

Anl In (5), see Figure 2-14 on page 2-27.

 

Select AUDIO in the cell control screen to gain access to the audio function of the

 

Agilent 8922M/S.

 

The measurements of the audio voltage and frequency commence within a short

 

time of the screen being accessed.

 

The ac voltage (1) and the audio frequency (2) are the two main measurements made

 

in this screen. Additional measurements, such as DC Level, can be made by

 

selecting the AF Freq field. (2). The audio frequency generator (3) is used to

 

generate an audio signal from dc up to 25 kHz. The AF analyzer fields sets the

 

conditions for measuring the audio signal (4).

12

3

4

 

5

Figure 2-14

Audio Measurements

2-27

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Image 55
Agilent Technologies 8922M, S GSM manual Audio Measurements