102 Getting Started GuideXSA InterfaceTx Beam FormingTx Beam Forming ResultsThe Tx Beam Forming results are added to the Modulation Analysismeasurement results as Index 21 and Index 22, as described in the table below.Index Result Parameter21 Tx Beam Forming Calibrated Angle Errorreturns a series of floating point numbers (in rad) that represent the calibrated angle error vectors on channels,when- Radio Std is 802.11n (20 MHz), or 802.11n (40 MHz), and MIMO Tx Channel Count <= 4- Radio Std is 802.11ac(20MHz), 802.11ac(40MHz), 802.11ac(80MHz), or 802.11ac(160MHz), and MIMO TxChannel Count <= 8- MIMO Usage Type is TXBForming (available when license V9077B-KFP is installed)Otherwise, returns -999.0.The first channel angle vector is used as reference; the angle error vectors are listed in order of channels. Forthe 20MHz BW signals, each channel’s angle error vector contains 64 values; For the 40MHz BW signals, eachchannels angle error vector contains 128 values; For the 80MHz BW signals, each channels angle error vectorcontains 256 values, For 160MHz BW signals, each channels angle error vector contains 512 values.22 Tx Beam Forming Gainreturns gain after the calibrated angle error vector are compensated for the MIMO input signal, when- Radio Std is 802.11n (20 MHz), or 802.11n (40 MHz), and MIMO Tx Channel Count <= 4- Radio Std is 802.11ac(20MHz), 802.11ac(40MHz), 802.11ac(80MHz), or 802.11ac(160MHz), and MIMO TxChannel Count <= 8- MIMO Usage Type is TXBForming (available when license V9077B-KFP is installed)Otherwise, returns -999.0.
