Antenna Ports - Digi ConnectCore 6 Hardware Reference Manual

About the ConnectCore 6

Antenna ports

ConnectCore 6 module variants supporting both Bluetooth and WLAN are populated with one single
antenna port covering both 2.4 and 5 GHz frequencies.
Module variants supporting only WLAN provide additionally antenna diversity feature. Two antenna
ports supporting the same transmit and receive signals are populated on the product. The software
running on the ConnectCore 6 SOM switches from one antenna port to the other depending on the
RSSI (Receive Signal Strength Indication) of the received beacon, which guarantees that the antenna
with the best signal is always used and thus improve the quality and reliability of the wireless link. The
interval between comparisons of RSSI values on the two antennas is by default 10 seconds, but can be
configured in software. Furthermore, when the RSSI measured is too low, the software will
automatically switch to the other antenna regardless of the 10 second interval. Hence, antenna
diversity is an option and it is absolutely safe to mount only one antenna in the system, connected for
instance to the primary antenna port.
The following image shows the location of the primary antenna.
ConnectCore® for i.MX6 Hardware Reference Manual
Wireless interfaces
15