1xEV-DO BTS Analyzer (Option K84) R&S FSL
1300.2519.12 4.360 E-11
S
pectrum Emission Mask
The Spectrum Emission Mask measurement shows the quality of the measured signal by
comparing the power values in the frequency range near the carrier against a spectral mask that is
defined by the 3GPP2 specifications. The limits depend on the selected bandclass. In this way, the
performance of the DUT can be tested and the emissions and their distance to the limit be
identified.
Note that the 3GPP2 standard does not distinguish between spurious and spectral emissions.
Beneath the measurement screen a table showing the peak list. In the peak list the values for the
worst spectral emissions are displayed including their frequency and power.
The default settings of the Spectrum Emission Mask measurement are listed in the table below.
Setting Default value
Frequency Span 8 MHz
Sweep Time 100 ms
Detector RMS
In order to provide a quick swap from the base unit to the 1xEV-DO BTS Analyzer option, some
parameters are passed on.
Transferred Parameter
Reference Level
Ref Level Offset
Center Frequency
Frequency Offset
Trigger settings
For details on the softkeys of the Spectrum Emission Mask measurement refer to the Spectrum
Emission Mask softkey in the measurement menu.
Occupied Bandwidth
The Occupied Bandwidth measurement determines the bandwidth in which the signal power can be
found. By default the bandwidth is displayed in which 99% of the signal is found. The percentage of
the signal power included in the measurement can be modified.
In the top right corner of the screen, the bandwidth and frequency markers are displayed.
The default settings of the Occupied Bandwidth measurement are listed in the table below.
Setting Default value
Occupied Bandwidth ON
Frequency Span 4.2 MHz
Sweep Time 100 ms
RBW 30 kHz
VBW 300 kHz
Detector RMS
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