Maximum

SCPI Command :

FETCh:WLAN:MEASurement<Instance>:MEValuation:LIST:SEGMent<segment>:MODulation:MAXimum
class MaximumCls[source]

Maximum commands group definition. 1 total commands, 0 Subgroups, 1 group commands

class FetchStruct[source]

Response structure. Fields:

  • Reliability: int: decimal ‘Reliability indicator’ In list mode, a zero reliability indicator indicates that the results in all measured segments are valid. A non-zero value indicates that an error occurred in at least one of the measured segments.

  • Seg_Reliability: int: decimal Reliability indicator for the segment. The meaning of the returned values is the same as for the common reliability indicator, see previous parameter.

  • Out_Of_Tol: float: float Out of tolerance result, i.e. percentage of measurement intervals of the statistic count for modulation measurements exceeding the specified modulation limits. Range: 0 % to 100 %, Unit: %

  • Mcs_Index: int: decimal Modulation and coding scheme index Range: 0 to 76

  • Mod_Type: enums.ModulationTypeD: UNSPecified | BPSK14 | BPSK12 | BPSK34 | QPSK14 | QPSK12 | QPSK34 | 16Q14 | 16Q38 | 16Q12 | 16Q34 | 64Q12 | 64Q23 | 64Q34 | 64Q56 | 256Q34 | 256Q56 | 1KQ34 | 1KQ56 | BPSK | QPSK | 16Q | 64Q | 256Q | 1KQ Modulation scheme and coding rate UNSPecified: modulation unknown BPSK: BPSK, coding rate unknown BPSK12, BPSK34 (BPSKab) : BPSK, coding rate a/b BPSK14: BPSK, coding rate 1/2 DCM QPSK: QPSK, coding rate unknown QPSK12, QPSK34 (QPSKab) : QPSK, coding rate a/b QPSK14: QPSK, coding rate 1/2 DCM 16Q: 16-QAM, coding rate unknown 16Q12, 16Q34 (16Qab) : 16-QAM, coding rate a/b 16Q14: 16-QAM, coding rate 1/2 DCM 16Q38: 16-QAM, coding rate 3/4 DCM 64Q: 64-QAM, coding rate unknown 64Q12, 64Q23, 64Q34, 64Q56 (64Qab) : 64-QAM, coding rate a/b 256Q: 256-QAM, coding rate unknown 256Q34, 256Q56 (256Qab) : 256-QAM, coding rate a/b 1KQ: 1024-QAM, coding rate unknown 1KQ34, 1KQ56 (1KQab) : 1024-QAM, coding rate a/b

  • Payload_Sym: int: decimal Number of OFDM symbols in the payload of the measured burst Range: 1 symbol to 1366 symbols, Unit: symbol

  • Measured_Sym: int: decimal Number of OFDM symbols in the payload to be measured Range: 1 symbol to 1366 symbols, Unit: symbol

  • Payload_Bytes: int: decimal Number of bytes in the payload of the measured burst. The results are only available for the standards up to Wi-Fi 4 (802.11n) , for Wi-Fi 5 standard (802.11ac) and later, NCAP is returned. Range: 1 byte to 4095 bytes, Unit: byte

  • Guard_Interval: enums.GuardInterval: SHORt | LONG | GI08 | GI16 | GI32 SHORt, LONG: short or long guard interval (up to 802.11ac) GI08, GI16, GI32: 0.8 μs, 1.6 μs, and 3.2 μs guard interval durations (for 802.11ax)

  • Nof_Ss: int: decimal Number of spatial streams Range: 1 to 8

  • No_Of_Sts: int: decimal Number of space-time streams Range: 1 to 8

  • Burst_Rate: float: float Indicates the share of bursts of the selected modulation type 5_ModType in the bursts received. Unit: %

  • Power_Backoff: float: float Minimum distance of signal power to reference level since the start of the measurement Range: -100 dB to 0 dB, Unit: dB

  • Burst_Power: float: float RMS power of the measured burst Range: -100 dBm to 30 dBm, Unit: dBm

  • Peak_Power: float: float Peak power of the measured burst Range: -100 dBm to 30 dBm, Unit: dBm

  • Crest_Factor: float: float Range: 0 dB to 60 dB, Unit: dB

  • Evm_All_Carr: float: float EVM for all, data, and pilot carriers Range: -100 dB to 0 dB, Unit: dB

  • Evm_Data_Carr: float: float EVM for all, data, and pilot carriers Range: -100 dB to 0 dB, Unit: dB

  • Evm_Pilot_Carr: float: float EVM for all, data, and pilot carriers Range: -100 dB to 0 dB, Unit: dB

  • Freq_Error: float: float Center frequency error Range: -150 MHz to 150 MHz, Unit: Hz

  • Clock_Error: float: float Symbol clock error Range: -125 ppm to 125 ppm, Unit: ppm

  • Iq_Offset: float: float Range: -100 dB to 0 dB, Unit: dB

  • Dc_Power: float: float Range: -100 dBm to 30 dBm, Unit: dBm

  • Gain_Imbalance: float: float Range: -100 dB to 100 dB, Unit: dB

  • Quad_Error: float: float Quadrature error Range: -180 deg to 180 deg, Unit: deg

  • Ltf_Power: float: float Power of long training fields (LTF) portion Unit: dBm

  • Data_Power: float: float Power of data portion Unit: dBm

fetch(segmentB=SegmentB.Default) → FetchStruct[source]
# SCPI: FETCh:WLAN:MEASurement<Instance>:MEValuation:LIST:SEGMent<segment>:MODulation:MAXimum
value: FetchStruct = driver.multiEval.listPy.segment.modulation.maximum.fetch(segmentB = repcap.SegmentB.Default)

Return OFDM/OFDMA modulation single value results for segment <no> in list mode.

param segmentB:

optional repeated capability selector. Default value: Nr1 (settable in the interface ‘Segment’)

return:

structure: for return value, see the help for FetchStruct structure arguments.