Receiver Start of Packet Detection Threshold
As the RX-SOP value increase, only packets of a higher RSSI value are decoded by the AP’s radio. This decreases the cell size as shown in the figure above, but ensures that all clients are connected with a good RSSI value.
The following is an example of an AP receiving 802.11 packets. All frames received with weaker RSSI than configured RS-SOP will be classified as non-WiFi frames and will not get decoded by the radio, only packets with acceptable RSSI values are decoded. Packets that are not decoded are treated as non-WiFi interference and detected at the AP as noise.
In this example, the RX-SOP threshold is set to low, so authentication requests sent at -84 dBm are not decoded, but when the same message is sent at -36 dBm, it is decoded.
|802.11 Band||High Threshold||Medium Threshold||Low Threshold||Auto|
|5 GHz||-76 dBm||-78 dBm||-80 dBm||Use radio default|
|2.4 GHz||-79 dBm||-82 dBm||-85 dBm||Use radio default|
The RX-SOP default threshold value is Auto, which means that the RX-SOP threshold is set to the radio’s default value.Existing RF profiles can be modified to include an RX-SOP Threshold. You need not create a new profile solely for RX-SOP.