User manual

Chapter 2 Front Panel Operation RIGOL
User’s Guide for DSA700 Series
2-51
C/N Ratio
Measurement Interface:
Figure 2-17 C/N Ratio Measurement Interface
Measurement Results: carrier power, noise power and C/N ratio.
 Carrier Power: power within the carrier bandwidth.
 Noise Power: power within the noise bandwidth.
 C/N Ratio: the ratio of the carrier power to the noise power.
Measurement Parameters: average number, average mode, offset frequency,
noise bandwidth and carrier bandwidth.
1. Avg Num
Specify the number of averages used when calculating the measurement
result and the default is "Off". You can use the numeric keys, knob or direction
keys to modify this parameter.
2. Avg Mode
Set the average operation mode to "Exp" or "Repeat" and the default is "Exp".
 When "Exp" is selected, the result is the exponential average of the
current N (N is specified in "Avg Num") measurement results.
Offset Frequency
Carrier Bandwidth
Noise Bandwidth