User's Manual

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SMAC3 User Material
4.2 MIMO
To configure MIMO, Click Wireless> 5 GHz Radio Configuration > MIMO
SMAC3 Series devices support Multiple-Input-Multiple-Output (MIMO) antenna technology
that uses multiple antennas at both the transmitting end and receiving end to improve
communication performance.
The transmitting antenna uses multiple radio TX chains and signal paths to simultaneously
transmit different data streams, whereas the receiver combines the Rx signals resulting in
higher throughput.
By increasing the number of receiving and transmitting antennas, the throughput of the
channel increases linearly resulting in high spectral efficiency.
4.3 DDRS
Dynamic Data Rate Selection (DDRS) feature adjusts the transmission data rate to an optimal
value and provides the best possible throughput according to the current communication
conditions and link quality.
To configure DDRS, Click Wireless> 5 GHz Radio Configuration > DDRS
Select the Spatial stream as either as Auto, Single, or Dual.
Dual Stream: Select Dual for higher throughput.
Single Stream: Select Single for reliability and longer range.
Auto Stream: When you select Auto, DDRS decides the stream modes based on the
environmental conditions.
The data rate can be varied from min to max based on SNR and Retransmission
percentage.
ATPC
To configure ATPC, Click Wireless> 5 GHz Radio Configuration > ATPC
When you enable the Adaptive Transmit Power Control (ATPC), the device automatically
adjusts the transmit power to avoid saturation of remote receiver which could cause data
errors leading to lower throughput and link outage.
When you disable the ATPC, manually adjust the transmit power. The range should be
between (1-26) dbm