FT4 is a real winner !

First prediction :
FT4 will change the digital ham-world.  For sure !

Second prediction :
FT4 will make FT8 obsolete. 
FT8 will be remembered as the first very popular, easy accessible digital mode.  One year later, FT4 will take over.

Speed is superb.  This is going fast.  At least when there are people on the air.
I made 150 QSO's in FT4.  With 400 W versus 200 W in FT8. 

Duty cycle is only 30% (5 seconds on a 15 seconds send/receive stream), my system is running on lower temperature compared with FT8.

My first conclusion is that stronger signals are needed, as foreseen in the protocol, but that this mode will attract still more participants compared with FT8. 

to be continued... 

Thank you TR8CA for coming back to my FT4 CQ.