Commands Listed in Alphabetical Order
RF:RBW
This command specifies the resolution bandwidth (RBW) when the RBW mode
has been set to MANUAL (using the command RF:RBW:MODe). The resolution
bandwidth is the width of the narrowest measurable band of frequencies in a
frequency domain trace. The RBW is adjustable down to 20Hz. By default, the
RBW tracks t
he span value in a 1000:1 ratio.
The RBW determines the level to which the oscilloscope can resolve individual
frequencies in the frequency domain. For example, if the input signal contains
two carriers separated by 1 kHz, you will not be able to discriminate between
them unless the RBW is less than 1 kHz.
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
RF
Syntax
RF:RBW <NR3>
RF:RBW?
Arguments
<NR3> is a floating point number that represents the width of the narrowest
measurable band of frequencies in a frequency domain trace.
Examples
RF:RBW 2.0E+04 sets the RBW to 20 kHz.
RF:RBW? might return 3.0000E+6, indicating that the RBW has been set to 3 MHz.
RF:RBW:MODe
This command specifies the resolution bandwidth (RBW) mode, either automatic
or manual.
Conditions
MDO3000, MDO4000/B, or MDO4000C models with option SA3 or SA6 only.
Group
RF
Syntax
RF:RBW:MODe {AUTO|MANual}
RF:RBW:MODe?
Arguments
AUTO sets the resolution bandwidth automatically as the span is changed. The
default behavior is 1000:1, but you can set it to other values in a 1–2–5 sequence
2-572 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
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