Agilent Technologies E8285A Video Games User Manual


 
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S:\agilent\e8285\REFGUIDE\MANUAL\fields.chp
Chapter 4, Description of Fields
Fields
SNR
When set to SNR, this field displays the signal to noise ratio of the input audio
signal.
This field is a one-of-many field used to select the type of measurement to be
made by the Audio Frequency Analyzer on the audio signal being measured. See
“Measure” in the GPIB Command Syntax chapter of the E8285A Condensed
Programming Reference Guide for programming command syntax.
Selecting this field displays the following measurement choices:
SINAD
Distn (Distortion)
SNR (Signal to Noise Ratio)
AF Freq
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 measurements.
The RF Generator and AFGen1 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.
Screens Where Field is Present
AF ANALYZER
RX TEST
TX TEST
DUPLEX TEST
RF GENERATOR
RF ANALYZER