Keysight M9421A - Center Frequency Segment1; Center Frequency Segment2

3 WLAN Mode
3.4 SEM Measurement
>3.6 GHz by pressing the Up-arrow key, fails and results in an advisory message. If the equivalent
SCPI command is sent, this same message is generated as part of a “-221, Settings conflict” warning
Couplings When auto-coupled, the center frequency step size is set to 10% of the span
Preset Auto
ON
State Saved Saved in instrument state
Min/Max –/+ (The maximum frequency of the instrument)
That is, 27 GHz max freq instrument has a CF step range of +/- 27 GHz. Note that this is the maximum
frequency given the current settings of the instrument, so in External Mixing, for example, it is the
maximum frequency of the current mixer band
Status Bits/OPC
dependencies
non-overlapped
Center Frequency Segment1
Only available when Radio Standard is 802.11ac 80+80MHz, or 802.11ax
80+80MHz, and when the active Measurement is SEM, CHP or Modulation Analysis.
Sets the center frequency of Segment 1.
Note that the SCPI command sets this center frequency even if Radio Standard is
not 802.11ac/ax 80+80MHz.
Remote
Command
[:SENSe]:FREQuency:CENTer:SEGMent1 <freq>
[:SENSe]:FREQuency:CENTer:SEGMent1?
Example
:FREQ:CENTer:SEGM1 5.53 GHz
:FREQ:CENTer:SEGM1?
Notes For an 80+80MHz channel, Segment1 will be the lower or upper segment. The center frequency of
Segment1 is independent from the center frequency of Segment2
The measurement rearranges Segment1 and Segment2 based on their center frequency, and generates
a “setting conflict” error message if the spacing between the two segments is less than 80MHz
Preset 5.21 GHz
State Saved Saved in instrument state
Min/Max Depends on instrument minimum/maximum center frequency
Same as Center Frequency
Center Frequency Segment2
Only available when Radio Standard is 802.11ac 80+80MHz, or 802.11ax
80+80MHz, and when the active measurement is SEM, CHP or Modulation Analysis.
Sets the center frequency of Segment 2.
545 WLAN Mode User's &Programmer's Reference