Futaba manual says 500 yards on the ground and 1,000 yards when flying.
It also says that the RX has a range of no more then 1,000 yards.
The way it's writtin it seems that the RX is detuned to be less sensitive.
This is why I decided to have all my gear going over with lab grade equipment.They told me that one of the adjustmens was vey touchy and power can change just by bumping the TX so they replaced that trim pot.
I have the specs now and as a ham I think i' allowed to work on 72 MHZ gear