SIGLENT SSA5083A, User Manual, Page: 186 / 260

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User Manual
5.2.3 EqLPF
The EqLPF specifies the equivalent low-pass filter bandwidth of the analyzed signal. If the setting
is incorrect, it will affect the accuracy of the measurement results. EqLPF is an additional low-pass
filter, which can be used to measure lower the modulation frequency of the modulation signal. The
bandwidth of EqLPF is fractional times that of IFBW, and there are 6 gears to choose from, namely
IFBW/6, IFBW/20, IFBW/60, IFBW/200, IFBW/600 and IFBW/2000.
The bandwidth of the EqLPF should be as small as possible, which can improve the
signal-to-noise ratio of demodulation, but at the same time, it should be greater than or equal to
the modulation frequency.
Command format :CALCulate:EQLPf:INDEx
:CALCulate:EQLPf:INDEx?
Instructions Set up analog demodulation equalization filter
Obtain analog demodulation equalization filter
Parameter type Enumeration
Parameter Range 0-6
Return 0-6
Example :CALCulate:EQLPf:INDEx 2
5.2.4 Average
Turn on or off the averaging option for measurement results, and you can set the number of items
involved in the averaging calculation. When the averaging option is turned off, the "Average"
column of the measurement results becomes "Current". The larger the average number, the more
stable the "average" value.