RFmxWLAN OFDMModAcc Fetch Number of Users VI

Selector String specifies a selector string comprising of the signal name and result name. If you do not specify the signal name, the default signal instance is used. If you do not specify the result name, the default result instance is used. The default value is "" (empty string).

Example:

""

"signal::sig1"

"result::r1"

"signal::sig1/result::r1"

You can use the RFmxWLAN Build Signal String VI to build the selector string.

Instrument Handle In specifies the RFmx session refnum. Instrument Handle In is obtained from the RFmxInstr Initialize NIRFSA VI or the RFmxInstr Initialize NIRFSA (Array) VI.

Timeout specifies the timeout for fetching the specified measurement. Set this value to an appropriate time, longer than expected for fetching the measurement. A value of -1 specifies that the VI waits until the measurement is complete. This value is expressed in seconds. The default value is 10.

error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

Instrument Handle Out passes a reference of your RFmx session to the next VI.

Number of Users returns the number of users which is derived for the following standards.

Standard	Derivation
802.11ac	Derived from the VHT-SIG-A for VHT MU PPDU.
802.11ax	Derived from the HE-SIG-B for HE MU PPDU.
802.11be	Derived from the EHT-SIG for EHT MU PPDU.
802.11bn	Derived from the UHR-SIG for UHR MU PPDU.

For all other PPDUs, this property returns 1.

error out contains error information. This output provides standard error out functionality.