Table of Contents
Advertisement
Chapter 5, AF Analyzer Screen
Block Diagram
AF Cnt Gate
AF Freq
98
Audio frequency counter gate specifies how long the AF counter samples the
signal before displaying the frequency. Specifying a shorter gate time may enable
you to see frequency fluctuations that might not be seen using a longer gate time.
This is the default measurement for this measurement 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 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).
See Also
"Interaction Between Screens" on page 54
"Displaying Measurements" on page 57
Advertisement
Table of Contents
