Agilent Technologies 35670A Manual page 458

Dynamic signal analyzer gpib programming

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In correlation analysis instrument mode (INST:SEL CORR), the following commands are valid:

AVER:TYPE RMS

AVER:TYPE RMS;TCON EXP

AVER:TYPE TIME

AVER:TYPE TIME;TCON EXP

In histogram instrument mode (INST:SEL HIST):

This command is not valid.

Octave analysis instrument mode (INST:SEL OCT):

To select linear averaging, send AVER:TYPE RMS. Old and new data records are weighted

equally to yield the arithmetic mean. Averaging is done for a specified amount of time rather than

for a number of averages. The value specified with the AVER:TIME command is used for linear

integration time.

To select exponential averaging, send AVER:TYPE RMS;TCON EXP. New data is weighted more

than old data. The AVER:TIME command specifies the time constant.

To select equal confidence averaging, send AVER:TYPE ECON;TCON EXP. The averaging time

for each band is proportional to the bandwidth product for that band. The relative confidence in the

measurement is equal across bands. The AVER:CONF command determines the specifies the

confidence level. This is an instrument-specific SCPI command.

To specify the peak hold function, send AVER:TYPE MAX. The value specified with the

AVER:TIME command is the integration time over which to hold maximum values.

In swept sine instrument mode (INST:SEL SINE):

This command is not valid. Averaging integrates a single data point at a time, as opposed to

averaging complete time records.