Rigol DSA1030, User Manual

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Front Panel Key Reference RIGOL
User’s Guide for DSA1000 Series 2-67
Table 2-46 Average number for C/N Ratio measurement
Parameter Explanation
Default 10
Range 1 to 1000
Unit N/A
Knob Step 1
Direction Key Step 1
2.
Avg Mode
Sets the Average operation to Exp or Repeat, the default is Exp.

In Exp mode, the result is from the exponent average calculation of the
current N (specified by Avg Num) measurements.

In Repeat mode, the result is the arithmetic average of the current N
(specified by Avg Num) measurements.
3.
Offset Freq
Sets the center frequency difference between the carrier and the noise.
You can use the numeric keys, knob or direction keys to modify this parameter.
For more details, please refer to “Parameter Input”.
Table 2-47 The Offset Freq of C/N Ratio measurement
Parameter Explanation
Default 2 MHz
Range
33 Hz to 1 GHz
Unit GHz, MHz, kHz, Hz
Knob Step Offset Freq/100, Min = 1 Hz
Direction Key Step in 1, 1.5, 2, 3, 5, 7.5 sequence
4. Noise BW
Sets the bandwidth of the noise for measurement.
You can use the numeric keys, knob or direction keys to modify this parameter.
For more details, please refer to “Parameter Input”.