Andy,thanks for clarification. I started uisng 2.4 system in 2009 with the JR 12X and really like that radio. Went to DX18 G2 last year to get the easier program and digital trim on throttle, plus have a lighter unit. Started using voice alerts and getting to like that feature, too.
I've never done full power range checks but now that I'm flying more expensive planes, I can see making that a check at least when the system is new.
Was nice to see that when I moved the receiver out of the line of sight to transmimtter and lost signal, it regained the signal when I moved the unit back to line of sight.