this is a bit amusing. In the US the trend is to go for QRSS from BPSK
and in Europe from QRSS to BPSK. A kinda flip flop.
Bob  K3DJC

Not strictly correct. Almost all of those who are getting equipped for BPSK
can already do QRSS. The whole point being that it is so simple to implement
with existing freeware and internal hardware. There is only a tiny number of
well-equipped Eu stations who have BPSK going efficiently.

Merry Christmas de Mike, G3XDV