Quick answer is NO to full duplex
...... Buttttttttt the Wouxun dual-band(s) are one of the "only" HT's (besides a few Yaesu's) that are truly 'SAT Friendly'
--- as each memory can be programmed for the different 'band' RX & TX frequencies. It would be nice to hear yourself in a true duplex world but technically not feasible in small HTs.
I have the UV3 for SAT operations, it works great; I've programmed 4-5 memories for each SAT to accommodate Doppler affects and when needed the 10min PL timer activation. The SAT programming chart/info can be found on my HAM-SATs group.
You will want to use 'free' KG Commander to PC program - manual programming is a real bear!
Now we just need more working FM SATs in orbit - we're down to only two SO-50 and the temperamental AO-27, with Fox-1 (FM SAT) going into orbit next year. ISS repeater is not active and crew OPs are very hit-n-miss.