Measurements
R&S
®
FSW
190User Manual 1173.9411.02 ─ 19
5.5.2 OBW Results
As a result of the OBW measurement the occupied bandwidth ("Occ BW") is indicated
in the marker results. Furthermore, the marker at the center frequency and the tempo-
rary markers are indicated.
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 Assigning the Marker to
a Trace).
The OBW calculation is repeated if the Search Limits are changed, without performing
a new sweep. Thus, the OBW for a multicarrier signal can be determined using only
one sweep.
Remote command:
The determined occupied bandwidth can also be queried using the remote command
CALC:MARK:FUNC:POW:RES? OBW or CALC:MARK:FUNC:POW:RES? AOBW. While
the OBW parameter returns only the occupied bandwidth, the AOBW parameter also
returns the position and level of the temporary markers T1 and T2 used to calculate the
occupied bandwidth.
CALC:MARK:FUNC:POW:SEL OBW, see CALCulate<n>:MARKer<m>:FUNCtion:
POWer:SELect on page 698
CALCulate<n>:MARKer<m>:FUNCtion:POWer[:STATe] on page 698
CALC:MARK:FUNC:POW:RES? OBW, see CALCulate:MARKer:FUNCtion:
POWer<sb>:RESult? on page 696
Occupied Bandwidth Measurement (OBW)
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