3 WLAN Mode
3.6 Modulation Analysis Measurement
In a normal measurement, the signal is synchronized to the chip timing. In unusual
cases, it is possible for the synchronization to be off slightly. This parameter allows
the user to specify a timing offset which is added to the chip timing detected. This
parameter should only be used when trying to debug unusual signals.
Remote Command
[:SENSe]:EVM:CADJust <real>
[:SENSe]:EVM:CADJust?
Example
:EVM:CADJ -0.1
:EVM:CADJ?
Preset 0 chip
State Saved Saved in instrument state
Min -0.5 chip
Max 0.5 chip
3.6.8.5 Demod
Accesses parameter settings for signal demodulation.
Subcarrier Selection
This parameter is available when Radio Std is NOT 802.11b/g(DSSS/CCK/PBCC).
This parameter specifies whether the demodulation results are for all subcarriers in
the signal, or for a single subcarrier , or for just the pilot subcarriers.
Remote Command
:CALCulate:EVM:SUBCarrier ALL | PILOt | SINGle
:CALCulate:EVM:SUBCarrier?
Example
:CALC:EVM:SUBC ALL
:CALC:EVM:SUBC?
Preset
ALL
State Saved Saved in instrument state
Range All|Pilot|Single
Single Subcarrier
Specifies the demodulation results are for which subcarrier. When Subcarrier
Selection selects Single, this number will indicate which subcarrier is used to do
demodulation.
This is not available when Radio Std is 802.11b/g (DSSS/CCK/PBCC). It is available
when Subcarriers Selection is selected as Single.
1017 WLAN Mode User's &Programmer's Reference
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