FlexRadio has announced full duplex operation of the Flex-6000 rigs. Because the ‘6700 has two completely independent receive chains, it can receive on two different antennas at once, and still on one of them while transmitting on the other. It should be capable of “SO2R in a box” with just the one FlexRadio. The configuration is actually pretty much the same as the previous one, but with the addition of an antenna connected to ANT B as well as ANT A.
Full duplex operation has not been tested as of this writing.