3 WLAN Mode
3.4 SEM Measurement
If WLAN radio standard is changed, Limit State will be preset to STD
When the value of Limit State is STD, and Radio Standard is 11ac 80+80 MHz, the channel span will be
set to the value satisfying the equation below if its previous value is less than the value calculated
through the equation
Chan Span = spacing between the two carriers + Chan IntegBW
Preset
STD
State Saved Saved in instrument state
Range
STD | MAN
Backwards
Compatibility
SCPI
[:SENSe]:SEMask:LIMits STD | MAN
Notes ON aliases to STD
OFF aliases to MAN
Range Auto | Man
Backwards Compatibility
SCPI
[:SENSe]:SEMask:T80Mask:AUTO ON | OFF | 1 | 0
[:SENSe]:SEMask:T80Mask:AUTO?
Mask Standard
Allows you to select various masks according to region-specific standards. Only
appears in WLAN Mode.
Mask
Selected
Example Mask used as auto standard mask
IEEE
:SEM:LIM:STAN
IEEE
Mask defined in IEEE 802.11-2012 standard
FCC Class A
:SEM:LIM:STAN
FCA
Mask defined in FCC 11p standard for STA transmit
power class A
FCC Class B
:SEM:LIM:STAN
FCB
Mask defined in FCC 11p standard for STA transmit
power class B
FCC Class C
:SEM:LIM:STAN
FCC
Mask defined in FCC 11p standard for STA transmit
power class C
FCC Class D
:SEM:LIM:STAN
FCD
Mask defined in FCC 11p standard for STA transmit
power class D
ETSI CCH
SCH1/5/6
:SEM:LIM:STAN
ESCH1
Mask defined in ETSI 11p standard for G5-CCH, G5-
SCH1,G5-SCH5 and G5-SCH6 channels
ETSI SCH2/3
:SEM:LIM:STAN
ESCH2
Mask defined in ETSI 11p standard for G5-SCH2 and G5-
SCH3 channels
ETSI SCH4
:SEM:LIM:STAN
ESCH4
Mask defined in ETSI 11p standard for G5-SCH4 channel
WLAN Mode User's &Programmer's Reference 554
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