Power Measurements – MEAS Key R&S FSL
1300.2519.12 4.92 E-11
AM Mod Depth
Opens a submenu and activates the measurement of the AM modulation depth. An AM–
modulated carrier is required on the screen for ensuring correct operation.
The level value of marker 1 is taken as the carrier level. When this function is activated, marker
2 and marker 3 are automatically set symmetrically to the carrier on the adjacent peak values of
the trace as delta markers and marker 2 is activated for the entry.
When the position of marker 2 (delta) is changed, marker 3 (delta) is moved symmetrically with
respect to the reference marker (marker 1).
If the edit dialog box is opened for marker 3, the latter can be moved for fine adjustment
irrespective of marker 2.
The R&S FSL calculates the power at the marker positions from the measured levels. The AM
modulation depth is calculated from the ratio between the power values at the reference marker
and at the delta markers. If the powers of the two AM side bands are unequal, the mean value of
the two power values is used for AM modulation depth calculation.
Remote: CALC:MARK:FUNC:MDEP ON
Remote: CALC:MARK:FUNC:MDEP:RES?
Time Domain Power (zero span)
Activates the power measurement in zero span and opens a submenu to configure the power
measurement. For more details see also "Power measurement in zero span" on page 4.78.
Remote: CALC:MARK:FUNC:SUMM:STAT ON
Peak (zero span)
Activates the calculation of the peak value from the points of the displayed trace or a segment
thereof. For more details see also "Power measurement in zero span" on page 4.78.
Remote: CALC:MARK:FUNC:SUMM:PPE ON
Remote: CALC:MARK:FUNC:SUMM:PPE:RES?
RMS (zero span)
Activates the calculation of the RMS value from the points of the displayed trace or a segment
thereof. For more details see also "Power measurement in zero span" on page 4.78.
Remote: CALC:MARK:FUNC:SUMM:RMS ON
Remote: CALC:MARK:FUNC:SUMM:RMS:RES?
Mean (zero span)
Activates the calculation of the mean value from the points of the displayed trace or a segment
thereof. The linear mean value of the equivalent voltages is calculated.
This can be used for instance to measure the mean power during a GSM burst.
For more details see also "Power measurement in zero span" on page 4.78.
Remote: CALC:MARK:FUNC:SUMM:MEAN ON
Remote: CALC:MARK:FUNC:SUMM:MEAN:RES?
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