3 Spectrum Analyzer Mode
3.2 Swept SA Measurement
Min 2 ms
Max 100 s
AM Channel BW
Sets the RBW setting used by the hardware during the demodulation period in
nonzero spans for the Tune & Listen function. Note that this is a separate parameter
only for the demodulation function and does not affect the RBW setting in the BW
menu which is used during the normal sweep. The flat top filter type must be used
during the demodulation period. A 5 kHz Video Bandwidth filter is used.
In Zero Span, the instrument’s RBW & VBW filters are used for the demodulation;
thus, the Channel BW (and RBW filter type) will match those of the instrument. This
allows gap-free listening. The Channel BW control is grayed-out and the value
displayed on the control matches the current RBW of the instrument. Upon leaving
zero span, the non-zero-span setting of Channel BW is restored as well as the
flattop filter type.
Remote Command
[:SENSe]:DEMod:AM:BANDwidth:CHANnel <freq>
[:SENSe]:DEMod:AM:BANDwidth:CHANnel?
Example
:DEM:AM:BAND:CHAN 200 kHz
Notes Grayed-out in Zero Span
Dependencies Unavailable in Zero Span
Couplings In Zero Span only, the value is set equal to the instrument’s current RBW value and it displays that
value on the control, but the control is grayed-out
Preset 30 kHz
State Saved Saved in instrument state
Min 390 Hz
Max 8 MHz
FM Channel BW
Sets the Res BW setting used by the hardware during the demodulation period in
nonzero spans for the Tune & Listen function. Note that this is a separate parameter
only for the demodulation function and does not affect the RBW setting in the BW
menu which is used during the normal sweep. The flat top filter type must be used
during the demodulation period. A 5kHz Video Bandwidth filter is used.
In Zero Span, the instrument’s RBW & VBW filters are used for the demodulation;
thus, the Channel BW (and RBW filter type) will match those of the instrument. This
allows gap-free listening. The Channel BW control is grayed-out and the value
displayed on the control matches the current RBW of the instrument. Upon leaving
430 Spectrum Analyzer Mode User's &Programmer's Reference
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