Specifies the number of space-time streams into which the data is divided.

You must use the following active channel string formats to set this property.

Standard Property Value Active Channel String Format
80211AC MIMOOFDM "" (empty string), if you set the PPDU Type property to SU PPDU
"userx", if you set the PPDU Type property to MU PPDU
80211AX MIMOOFDM "" (empty string), if you set the PPDU Type property to SU PPDU or Extended Range SU PPDU
"userx", if you set the PPDU Type property to MU PPDU or Trigger-Based PPDU
80211N MIMOOFDM, 80211AH MIMOOFDM, 80211AF MIMOOFDM "" (empty string)
80211BE MIMOOFDM "userx", if you set the PPDU Type property to MU PPDU or Trigger-Based PPDU

The default value is 1. The valid values for this property are as follows:

Standard Property Value Valid Values(Inclusive)
80211N MIMOOFDM 1 to 4
80211AC MIMOFDM 1 to 8, if you set the PPDU Type property to SU PPDU
1 to 4, if you set the PPDU Type property to MU PPDU
80211AX MIMOFDM 1 to 8, if you set the PPDU Type property to SU PPDU
1 to 4, if you set the PPDU Type property to MU PPDU or Trigger-Based PPDU
1 to 2, if you set the PPDU Type property to Extended Range SU PPDU
80211BE MIMOFDM 1 to 8, if you set the PPDU Type property to MU PPDU, SIG Compression Enabled property to True, and Number of Users property to 1.
1 to 4, if you set the PPDU Type property to MU PPDU and Number of Users property greater than 1.

Remarks

The following table lists the characteristics of this property.

Short Name Number of Space Time Streams
Data type ci32.png
Permissions Read/Write
High-level VIs niWLANG Set Number of Space Time Streams
Resettable No