Returns the MCS index or the data rate of the measured signal.

The MCS index or data rate for various standard signals are decoded as follows:

Standard Field
802.11a, 802.11j, 802.11p The data rate is decoded from the SIGNAL field.
802.11n The MCS index is decoded from the HT-SIG field.
802.11ac SU The MCS index is decoded from the VHT-SIG-A field.
802.11ac MU The MCS index is decoded from the VHT-SIG-B field.
802.11ax SU and Extended Range SU PPDU The MCS index is decoded from the HE-SIG-A field.
802.11ax MU PPDU The MCS index is decoded from the HE-SIG-B field.
802.11be MU PPDU The MCS index is decoded from the EHT-SIG field.
802.11bn MU PPDU The MCS index is decoded from the UHR-SIG field.
802.11bn ELR PPDU The MCS index is decoded from the ELR-SIG field.

For 802.11a, 802.11j, and 802.11p signals, the following MCS indices corresponds to their data rates:

MCS Data Rate
0 1.5 Mbps, 3 Mbps, and 6 Mbps for channel bandwidths of 5 MHz, 10 MHz, and 20 MHz, respectively.
1 2.25 Mbps, 4.5 Mbps, and 9 Mbps for channel bandwidths of 5 MHz, 10 MHz, and 20 MHz, respectively.
2 3 Mbps, 6 Mbps, and 12 Mbps for channel bandwidths of 5 MHz, 10 MHz, and 20 MHz, respectively.
3 4.5 Mbps, 9 Mbps, and 18 Mbps for channel bandwidths of 5 MHz, 10 MHz, and 20 MHz, respectively.
4 6 Mbps, 12 Mbps, and 24 Mbps for channel bandwidths of 5 MHz, 10 MHz, and 20 MHz, respectively.
5 9 Mbps, 18 Mbps, and 36 Mbps for channel bandwidths of 5 MHz, 10 MHz, and 20 MHz, respectively.
6 12 Mbps, 24 Mbps, and 48 Mbps for channel bandwidths of 5 MHz, 10 MHz, and 20 MHz, respectively.
7 13.5 Mbps, 27 Mbps, and 54 Mbps for channel bandwidths of 5 MHz, 10 MHz, and 20 MHz, respectively.

For 802.11ax, 802.11be or 802.11bn TB PPDU signals, this property returns the same value as the OFDM MCS Index property.

Use "user<n>" as the selector string to read this result for MU PPDU signals.

Remarks

The following table lists the characteristics of this property.

Short Name OFDMModAcc Results MCS Index
Data type ci32.png
Permissions Read Only
High-level VIs N/A
Resettable No