Keysight M9421A - I;Q Offset (Center Freq Leakage, CFL)

3 WLAN Mode
3.6 Modulation Analysis Measurement
Remote
Command
:CALCulate:EVM:LIMit:CERRor <real>
:CALCulate:EVM:LIMit:CERRor ?
Example
:CALC:EVM:LIM:CERR 15
:CALC:EVM:LIM:CERR?
Couplings If Radio Std is 802.11n 802.11ax or 802.11be and Center Frequency for 5 GHz band, Clock Error limit
will be coupled to 20.0ppm
Preset If Radio Std is 802.11a/g/j/p (OFDM), 802.11ac or 802.11ah:
20.00 ppm
If Radio Std is 802.11b/g (DSSS/CCK/PBCC), 801.11g (DSSS-OFDM ):
25.00 ppm
If Radio Std is 802.11n, 802.11af, 802.11ax, 802.11be for 2.4 GHz Band:
25.0ppm
State Saved Saved in instrument state
Min 0
Max 100 ppm
Backwards
Compatibility
SCPI
:CALCulate:EVM:LIMit:CLKerror <real>
:CALCulate:EVM:LIMit:CLKerror ?
I/Q Offset (Center Freq Leakage, CFL)
Sets Center Freq Leakage limit to warn you if the measured average Center Freq
Leakage exceeds the limit.
Remote
Command
:CALCulate:EVM:LIMit:CFLeakage <rel_ampl>
:CALCulate:EVM:LIMit:CFLeakage?
Example
:CALC:EVM:LIM:CFL -15
:CALC:EVM:LIM:CFL?
Preset If Radio Std is 802.11a/g/j/p (OFDM), 801.11g (DSSS-OFDM), 802.11n (20 MHz):
-15dB
If Radio Std is 802.11n (40 MHz):
-20 dB
If Radio Std is 802.11ac: -10log10(N) (N is fft length)
11ac 20M: -18dB
11ac 40M: -21dB
11ac 80M: -24dB
11ac 160M: -27dB
If Radio Std is 802.11ah: -10log10(N) (N is fft length)
11ah 1M: -15dB
1049 WLAN Mode User's &Programmer's Reference