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Chapter 9, Duplex Test Screen
Field Descriptions
AF Freq
This is the default measurement for this field. Selecting this field displays the
following measurement choices:
SINAD
Distortion
SNR (Signal to Noise Ratio)
AF Frequency
DC Level
Current - DC only
Operating Considerations
This is a priority control field. Accessing the RX TEST or TX TEST screen
overrides any changes made to this field in other screens.
SNR Operation
• Selecting SNR turns off the other audio measurement.
• The RF Generator and AF Generator 1 must be set up to provide the radio’s carrier.
(AFGen1 is automatically turned on and off repeatedly during this measurement.)
• AFGen2 must be turned off.
• The radio’s receiver’s audio output must be connected to the AUDIO IN port (set the
AF Anl In
field to
Audio In
).
See Also
"Interaction Between Screens" on page 54
"Displaying Measurements" on page 57
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