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SIGLENT
SSA3000X User Manual 49
2.4 Measurement
2.4.1 Meas
Provide measurement function, the screen will be divided into two parts, the above part is measure
screen, displaying trace, the other part is used to display result of a measurement.
2.4.1.1 Channel Power
Measure the power and power density within the specified channel bandwidth. When this function is
enabled, the span and resolution bandwidth are automatically adjusted to smaller values. Select
Channel Power and press Meas Setup to set the corresponding parameters.
2.4.1.2 ACPR
Measure the powers of the main channel and adjacent channels as well as the power difference
between the main channel and each of the adjacent channels. When this function is enabled, the span
and resolution bandwidth of the analyzer are adjusted to smaller values automatically.
Select ACPR and press Meas Setup to set the corresponding parameters.
2.4.1.3 Occupied BW
Integrate the power within the whole span and calculate the bandwidth occupied by this power
according to the specified power ratio. The OBW function also indicates the difference (namely
“Transmit Freq Error”) between the center frequency of the channel under measurement and the center
frequency of the analyzer. Select Occupied BW and press Meas Setup to set the corresponding
parameters.
2.4.1.4 T-Power
The system enters zero span mode and calculates the power within the time domain. The types of
powers available include Peak, Average and RMS. Select T-Power and press Meas Setup to set the
corresponding parameters.
2.4.1.5 TOI
Automatic measurement of IP3 (Third order Intercept Point), including the power of fundamental wave
and the Third order in the power, and calculate the adjustable Intercept Point
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