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Chapter 5 131
Analog Measurements - Screens and Control Fields
Ext Load R Filter 1
Ext Load R
External load resistance is used to calculate and display AF power.
Power is calculated using the voltage measured at the AUDIO IN
connections and the resistance value you enter into this field.
This field is displayed only when the Audio In field on the AF
ANALYZER screen is set to GND or Float.
Operating Considerations
To display audio power, set the AC Level measurement’s unit of
measure to W (watts).
Screens on which this field is displayed
AF ANALYZER
Filter 1
This field selects an audio frequency filter which can be used to
condition the audio signal before it is analyzed by the audio frequency
analyzer.
The following filter choices are available:
• <20 Hz HPF
• 50 Hz HPF
• 300Hz HPF
•C MESSAGE
Operating Considerations
The audio from the Test Set’s speaker is not affected by Filter 1 or
Filter 2 settings.
Screens on which this field is displayed
AF ANALYZER
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