CC85XX-CC2590 Antenna Diversity Reference Design contains schematics and layout files for the CC85XX-CC2590EM module which can be used with the PurePath Wireless CC85XXDK Development Kit. The reference design demonstrates good techniques for CC85XX-CC2590 decoupling and RF layout: including antenna switch and two SMA connectors for antenna diversity operation. This is supported in PurePath Wireless firmware version FW1.3.0 and higher available here. For optimum RF performance: decoupling and RF layout should be copied accurately. This is a 4-layer reference design: and the RF section is designed for operation in the 2.4GHz frequency band.