Chapter
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Native Device Message Details
4-192
Hz is used when omitted.
AUTO
Sets the resolution bandwidth automatically,
according to the frequency span settings.
Details
In MS269xA, MS2830A, MS2840A RBW Mode: Normal
For the MS2830A, MS2840A, RBW of 20 MHz and higher can be used
only when MS2830A-005/105/007/009/109, MS2840A-005/105/009/109
is installed.
For RBW 31.25 MHz, it is not a Gauss filter but a flat-top
characteristic filter. This command can be used only during 0 span.
RBW 1 Hz, 3 Hz, and 10 Hz cannot be set when Auto Sweep Type
Rules is Swept Only. This command cannot be used during 0 span
because Auto Sweep Type Rules is fixed to Swept Only.
Not available during Spectrum Emission Mask measurement.
This command is not available during the Spurious Emission
measurement.
In MS2830A, MS2840A RBW Mode: CISPR
RBW 1 MHz cannot be set when Detector is Quasi-Peak.
Not available when the Measure function is set to On.
Not available when the Gate View function is set to On.
Example of Use
To set the RBW to 3 kHz.
RB 3KHZ
RB?
> 3000
READ:SEM?
Spectrum Emission Mask Read
Function
This command performs the Spectrum Emission Mask measurement and
queries the result.
It works in the same way as the two commands are transmitted in the
following order:
INIT:SEM
FETC:SEM
Query
READ:SEM? n
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