3 WLAN Mode
3.4 SEM Measurement
Remote Command
[:SENSe]:SEMask:LIMits:STANdard IEEE | FCA | FCB | FCC | FCD | ESCH1 | ESCH2
| ESCH4
[:SENSe]:SEMask:LIMits:STANdard?
Example
:SEM:LIM:STAN IEEE
Dependencies Only available in WLAN Mode
Grayed-out if Radio Standard is not 802.11a/g/j/p 20MHz, 802.11j/p 10MHz, 802.11p 5MHz
The ETSI masks are grayed-out if Radio Standard is not 802.11j/p 10M
Preset
IEEE
State Saved Saved in instrument state
Spur Avoidance
Because VXT models M9410A/11A/15A are direct-conversion (zero-IF) receivers,
feedthrough leakage from the local oscillator appears as a spurious signal (spur) at
the Center Frequency. The Spur Avoidance function is provided to eliminate this
spur, at the expense of some measurement speed. For Spur Avoidance, the
instrument uses a software algorithm to remove this spur from the displayed
measurement data.
Some measurements allow you to turn off Spur Avoidance, but in this measurement
it is always enabled. Therefore, the Spur Avoidance switch is unavailable (grayed-
out) and set to ON.
If you press the grayed-out switch, a popup message appears stating:
Always enabled in this measurement. See manual for details
Remote Command
[:SENSe]:SEMask:SAVoid[:STATe]?
Example
:SEM:SAV?
Always returns ON
Dependencies Only appears in VXT models M9410A/11A/15A
Preset
ON
State Saved Saved in instrument state
Range
ON
Offset/Limits Config Table
Enables you to set up the measurement parameters for offset pairs and to set the
power limits for start and stop frequencies of the selected offsets. For example, you
can assign the start and stop frequencies, select the resolution bandwidth, and set
the sweep time.
555 WLAN Mode User's &Programmer's Reference
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