Software Manual for the R&S ZVL-K1 - Rohde & Schwarz

TRACe Subsystem (WLAN, K91 / K91n) R&S ZVL‑K1
TRACe Subsystem (WLAN, K91 / K91n)
The TRACe subsystem controls access to the instrument's internal trace memory.
Commands of the TRACe Subsystem
– TRACe[:DATA]
– TRACe:IQ:DATA:MEMory?
– TRACe:IQ:SRATe
Further information
– IQ Measurements
– Constellation vs Symbol
– Constellation vs Carrier
– Power vs Time – Full Burst and Rising /Falling Data
– Spectrum Flatness
– Spectrum FFT
– Statistics Bitstream data
– Statistics CCDF – Complementary cumulative distribution function
– Statistics Signal Field data
– EVM vs Carrier
– EVM vs Symbol
– Error vs Preamble
– Frequency Sweep Measurements
– Spectrum Mask
– Spectrum ACPR
IQ Measurements
There are a number of measurements that can be performed in IQ mode. No data will be returned for
any of the following measurements, should it be requested, until such time as a measurement
belonging to the IQ group has been previously run.
Running a frequency sweep measurement for example, Spectrum Mask, will not generate results for
this measurement group.
Constellation vs Symbol
This measurement represents I and Q data. For IEEE 802.11a, j and n the data will be returned as a
repeating array of interleaved I and Q data in groups of selected carriers, until all the data is exhausted.
For IEEE 802.11b the data will be returned as a repeating array of interleaved I and Q data in symbol
order until all the data is exhausted.
Each I and Q point will be returned in floating point format. TRACE1 is used for this measurement
results.
IEEE 802.11a, j and n only
If "All Carriers'' is selected, it will return 52 per of I and Q data per symbol.
1303.6573.42 4.724 E-5