Antenna diversity implementation on SPIRIT1 transciever

[Levan]

Hi all,

I have a question regarding the SPIRIT1 RF transceiver. According to Section 9.1, it features Antenna diversity functionality, allowing the transceiver to monitor signal strength in antennas and utilize the best one available.

My query is whether this function is directly implemented on SPIRIT1 or if it necessitates a host MCU where all the logic will be housed to control diversity functions.

If its implemented on SPIRIT1, is it function via the available four GPIO pins?

Are there any specific requirements for RF switches to enable this function?

Moreover, is it feasible to employ four antennas, or does this functionality exclusively support two antennas?

Thank you