3 Spectrum Analyzer Mode
3.9 SEM Measurement
Option SCPI Definition
Edge to
Meas BW
Center
carrier /2 (for lower offset), the uppermost carrier center
frequency + spacing of this carrier /2 (for upper offset) to the
center frequency of offset measuring filter*
Carrier
Edge to
Meas BW
Edge
ETOEdge
From the lowermost carrier center frequency - spacing of this
carrier /2 (for lower offset), the uppermost carrier center
frequency + spacing of this carrier /2 (for upper offset) to the
nominal -3 dB point of the offset measuring filter* closer to the
carrier
Sub-block
Edge to
Meas BW
Center
STOCenter
From either the lower or upper sub-block edge frequency to the
center frequency of offset measuring filter*
Sub-block
Edge to
Meas BW
Edge
STOEdge
From either the lower or upper sub-block edge frequency to the
nominal -3 dB point of the offset measuring filter* closer to the
carrier
Sub-block
Center to
Meas BW
Center
5G NR
Mode only
SCTOCenter
From the center frequency of sub-block to the center frequency
of offset measuring filter*
*Measuring filter = Meas BW (N) x Res BW
** sub-block (bandwidth) = BW
channel,block
which is defined in each 3GPP standard,
regardless of “Measure Carrier” for the uppermost and the lowermost carriers being
Enabled or Disabled. When the Number of Component Carriers within each sub-
block = 1, sub-block (bandwidth) = BW
channel
= 2 x F
offset,RAT
.
See "Diagrams for Offset Freq Define" on page 1667.
Mode: MSR, LTEAFDD, LTEATDD
Remote
Command
[:SENSe]:SEMask:OFFSet[1]|2:INNer:TYPE CTOCenter | CTOEdge | ETOCenter |
ETOEdge | STOCenter | STOEdge
[:SENSe]:SEMask:OFFSet[1]|2:INNer:TYPE?
Example
:SEM:OFFS:INN:TYPE ETOC
:SEM:OFFS:INN:TYPE?
Preset
STOCenter
State Saved Saved in instrument state
Range Carrier Center to Meas BW Center | Carrier Center to Meas BW Edge | Carrier Edge to Meas BW Center |
Carrier Edge to Meas BW Edge | Sub-block Edge to Meas BW Center | Sub-block Edge to Meas BW
Edge
Spectrum Analyzer Mode User's &Programmer's Reference 1665
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