R&S FSL Power Measurements – MEAS Key
1300.2519.12 4.101 E-11
Adjust Ref Level
Adjusts the reference level to the measured channel power. This ensures that the settings of the
RF attenuation and the reference level are optimally adjusted to the signal level without
overloading the R&S FSL or limiting the dynamic range by a too small S/N ratio. For details on
manual settings see "Settings of CP / ACP test parameters" on page 4.80.
The reference level is not influenced by the selection of a standard. To achieve an optimum
dynamic range, the reference level has to be set in a way that places the signal maximum close
to the reference level without forcing an overload message. Since the measurement bandwidth
for channel power measurements is significantly lower than the signal bandwidth, the signal path
may be overloaded although the trace is still significantly below the reference level.
Remote: POW:ACH:PRES:RLEV
OBW (span > 0)
Activates measurement of the occupied bandwidth according to the current configuration and
opens a submenu to configure the measurement. The occupied bandwidth is displayed in the
marker display field and marked on the trace by temporary markers. For details see also
"Measurement of occupied bandwidth" on page 4.78.
The measurement is performed on the trace with marker 1. In order to evaluate another trace,
marker 1 must be placed on another trace (see Marker to Trace softkey in the marker menu).
Remote: CALC:MARK:FUNC:POW:SEL OBW
Remote: CALC:MARK:FUNC:POW:RES? OBW
Remote: CALC:MARK:FUNC:POW OFF
% Power Bandwidth (span > 0)
Opens an edit dialog box to enter the percentage of total power in the displayed frequency range
which defines the occupied bandwidth. Values from 10% to 99.9% are allowed.
Remote: POW:BWID 95PCT
Channel Bandwidth (span > 0)
Opens an edit dialog box to enter the channel bandwidth for the transmission channel. The
specified channel bandwidth is used for optimization of the test parameters (for details see
"Settings of CP / ACP test parameters" on page 4.80). The default setting is 14 kHz.
For measurements in line with a specific transmission standard, the bandwidth specified by the
standard for the transmission channel must be entered.
Remote: POW:ACH:BWID 30kHz
To Next Page
Loading...
