Keysight x-series User Reference Manual page 624

9 Strip Chart Measurement
BW
BW
Displays the menu key that enables you to control the resolution BW.
Key Path
Notes
Initial S/W Revision
Res BW
Activates the Resolution Bandwidth (RBW) action function, which allows you to manually set the RBW.
Key Path
Remote Command
Example
Notes
Dependencies
Couplings
624
Front-panel key
Front panel only.
A.07.00
BW
[:SENSe]:BANDwidth|BWIDth[:RESolution] <freq>
[:SENSe]:BANDwidth|BWIDth[:RESolution]?
[:SENSe]:BANDwidth|BWIDth[:RESolution]:AUTO OFF|ON|0|1
[:SENSe]:BANDwidth|BWIDth[:RESolution]:AUTO?
BAND 200kHz
BAND?
FSC:BAND:AUTO 0
FSC:BAND:AUTO?
For Frequency Scan measurements, this key only affects RBWs used for meters.
For numeric entries, the RBW chooses the nearest (arithmetically, on a linear scale, rounding up)
available RBW to the value entered.
The suffix 1|2 is irrelevant to the measurement, they are added solely for remote language
compatibility.
When in zero span and EMC Std is set to None, there is no Auto setting for the Res BW. The
Auto/Man line on the Res BW softkey disappears in this case, and if the SCPI command
[:SENSe]:BWID[:RESolution]:AUTO ON is sent, it generates an error.
When a CISPR or MIL EMI Standard is in use, the Res BW is coupled to the Center Frequency and not
to the Span.
When in the CISPR or MIL EMC Standard, selecting Auto will make RBW auto coupled to Center
Frequency, in order to comply with EMI specs.
When EMC Standard= CISPR,
<150 kHz
150 kHz to <30 MHz
≥30 MHz to <1 GHz
≥1 GHz
When EMC Standard= MIL,
200 Hz
9 kHz
120 kHz
1 MHz
EMI Receiver Mode Reference