Keysight M9421A - Page 295

3 WLAN Mode
3.2 Channel Power Measurement
values are as follows:
–
IBW: 29 ms
–
IBWR: 108 ms
–
FAST 7.5 ms
Dependencies On non-sweeping hardware, this control is grayed out, and the Auto/Man toggle disappears. The
read-only control shows estimated sweep time
In those instruments, "Minimum Acquisition Time" on page 1719 is available
Couplings Coupled to Span, RBW, VBW, and Sweep Time Rules when Sweep Time is set to Auto; Sweep Time
changes when these parameters are changed
When you manually set a value when in the Auto state, the state automatically changes to Man
Preset Automatically Calculated unless noted below
WCDMA Mode
–
Channel Power: 1.0 msOBW: 32.6 ms
–
ACP: 29 ms
State Saved Saved in instrument state
Min Other than non-sweeping hardware: Typically, 1 ms
Non-sweeping hardware: N/A
In the ACP measurement, when Meas Method is Fast Power, the minimum sweep time is span-
dependent and automatically calculated
Max Other than non-sweeping hardware: 4000 s
Non-sweeping hardware: N/A
Annotation The sweep time is displayed in the lower-right corner of the screen. The number of points is displayed
parenthetically, as:
Sweep 13.3 ms (1001 points)
A “#” mark appears before “Sweep” in the annotation when it is switched from Auto to Manual
coupling
Status Bits/OPC
dependencies
Meas Uncal is Bit 0 in the register:
STATus:QUEStionable:INTegrity:UNCalibrated
Auto Function
Remote
Command
[:SENSe]:<meas>:SWEep:TIME:AUTO OFF | ON | 0 | 1
[:SENSe]:<meas>:SWEep:TIME:AUTO?
Example Channel Power measurement:
:CHP:SWE:TIME:AUTO OFF
:CHP:SWE:TIME:AUTO?
Preset
WCDMA Mode
OFF
All others
ON
295 WLAN Mode User's &Programmer's Reference