Keysight M9421A - Eq Training Using L-LTF; Data Decode

3 WLAN Mode
3.7 WLAN MIMO Modulation Analysis Measurement
Radio Standard Max Value
802.11n/ac 20MHz 57 subcarriers
802.11n/ac 40M 117 subcarriers
802.11ac80MHz/80+80MHz 245 subcarriers
802.11ac160MHz 501 subcarriers
802.11ax/be 20MHz 245 subcarriers
802.11ax/be 40MHz 489 subcarriers
802.11ax/be 80MHz | 802.11ax 80+80MHz 1001subcarriers
802.11ax/be 160MHz 2025 subcarriers
802.11be 320MHz 4073 subcarriers
Backwards Compatibility
SCPI
:CALCulate:EVMMimo:SMEQualizer:LENGth <integer>
:CALCulate:EVMMimo:SMEQualizer:LENGth?
Eq Training Using L-LTF
As this parameter is set to On, the channel estimation used by Equalizer is not only
from HE-LTF part, but also from L-LTF part. If HE-LTF data ensures the same
channel as L-LTF data, the algorithm is equivalent to extend the training sequence
length to improve the estimation accuracy to improve EVM performance.
Remote
Command
:CALCulate:EVMMimo:EQUalizer:LLTF[:STATe] OFF | ON | 0 | 1
:CALCulate:EVMMimo:EQUalizer:LLTF[:STATe]?
Example
:CALC:EVMM:EQU:LLTF 1
:CALC:EVMM:EQU:LLTF?
Notes Only used in 802.11n/ac/ax/be
Preset OFF
State Saved Yes
Range ON | OFF
Data Decode
This parameter specifies whether to do data decode. When Data Decode is ON, the
result PSDU CRC for multiuser will show in ‘User Information Summary’ for
11ax/11be/11ac/11n; the first user PSDU CRC result will show in Burst Info view.
Remote Command
:CALCulate:EVMMimo:DECode:ENABle OFF | ON | 0 | 1
:CALCulate:EVMMimo:DECode:ENABle?
Example
:CALC:EVMM:DEC:ENAB ON
1247 WLAN Mode User's &Programmer's Reference