Keysight M9421A - Page 1009

3 WLAN Mode
3.6 Modulation Analysis Measurement
when Result Length is Auto, the length of the burst is auto-detected. The result
length is determined from the decoded SIGNAL symbol. The value of Max Result
Length specifies the maximum result length for the burst; any burst longer than that
will be treated as though that were the length of the burst.
When Result Length is Man, you can specify the result length of the burst regardless
of the actual length of the burst.
For 802.11n/ac/ah/af/ax/be, if From HT-Sig is On:
The result length is detected from the Signal Field. It compares the decode length
information to the Max Result Length parameter and uses the smaller value as the
measurement result length.
For 802.11n/ac/ah/af/ax/be, if From HT-Sig is Off:
When Result Length is Auto, the analyzer automatically determines the
measurement result length by burst search. It compares the detected result length
to the Max Result Length parameter and uses the smaller value as the measurement
result length.
When Result Length is Man, it compares the input result length to the Result Length
parameter and uses the smaller value as the measurement.
Remote
Command
[:SENSe]:EVM:TIME:RESult:LENGth <integer>
[:SENSe]:EVM:TIME:RESult:LENGth?
[:SENSe]:EVM:TIME:RESult:LENGth:AUTO OFF | ON | 0 | 1
[:SENSe]:EVM:TIME:RESult:LENGth:AUTO?
Example
:EVM:TIME:RES:LENG 10
:EVM:TIME:RES:LENG?
:EVM:TIME:RES:LENG:AUTO ON
:EVM:TIME:RES:LENG:AUTO?
Preset 802.11a/g/j/p (OFDM), 801.11g (DSSS-OFDM), 802.11n/ac/ah/af/ax/be: 16 symbols
802.11b/g (DSSS/CCK/PBCC): 2816 chips
ON
State Saved Saved in instrument state
Saved in instrument state
Range Auto|Man
Min 802.11a/g/j/p (OFDM), 801.11g (DSSS-OFDM), 802.11n/ac/ah/af/ax/be: 2 symbols
802.11b/g (DSSS/CCK/PBCC)
150 chips
Max 802.11a/g/j/p (OFDM), 801.11g (DSSS-OFDM), 802.11n/ac/ah/af/ax/be: 21848 symbols
802.11b/g (DSSS/CCK/PBCC): 96360 chips
Backwards
Compatibility
SCPI
[:SENSe]:EVM:TIME:RESult[:STATe]:AUTO OFF | ON | 0 | 1
[:SENSe]:EVM:TIME:RESult[:STATe]:AUTO?
1009 WLAN Mode User's &Programmer's Reference