Measurements and Results
R&S
®
FSW
216
User Manual 1173.9411.02 ─ 43
% Power Bandwidth
Defines the percentage of total power in the displayed frequency range which defines
the occupied bandwidth. Values from 10
% to 99.9
% are allowed.
Remote command:
Channel Bandwidth
Defines the channel bandwidth for the transmission channel in single-carrier measure-
ments. This bandwidth is used to optimize the test parameters (for details see
on page 216). The default setting is 14
kHz.
For measurements according to a specific transmission standard, define the bandwidth
specified by the standard for the transmission channel.
For multicarrier measurements, this setting is irrelevant.
Remote command:
[SENSe:]POWer:ACHannel:BANDwidth[:CHANnel<ch>]
Adjust Settings
Optimizes the instrument settings for the measurement of the occupied bandwidth
according to the specified channel bandwidth.
This function is only useful for single carrier measurements.
All instrument settings relevant for power measurement within a specific frequency
range are optimized:
●
Frequency span: 3 × channel bandwidth
●
RBW ≤ 1/40 of channel bandwidth
●
VBW ≥ 3 × RBW
●
Detector: RMS
The reference level is not affected by "Adjust Settings". For an optimum dynamic
range,select the reference level such that the signal maximum is close to the reference
level.
(See
"Setting the Reference Level Automatically (Auto Level)"
The adjustment is carried out only once. If necessary, the instrument settings can be
changed later.
Remote command:
Search Limits (Left / Right)
If activated, limit lines are defined and displayed for the search. Only results within the
limited search range are considered.
For details on limit lines for searches, see
Remote command:
CALCulate<n>:MARKer<m>:X:SLIMits[:STATe]
CALCulate<n>:MARKer<m>:X:SLIMits:LEFT
CALCulate<n>:MARKer<m>:X:SLIMits:RIGHt
Deactivating All Search Limits
Deactivates the search range limits.
Occupied Bandwidth Measurement (OBW)
Содержание FSW Series
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Страница 16: ...Contents R S FSW 16 User Manual 1173 9411 02 43...
Страница 1388: ...Maintenance R S FSW 1388 User Manual 1173 9411 02 43 c If necessary remove any excess moisture with a dry soft cloth Cleaning...