Tested this Corona Xtal with my Futaba 8U. Seems to work fine and they send the correct frequency as well.....i have read that other got the wrong frequency Xtals.
Old rules apply...dont point the antennae at your airplane...got a glitch when my plane was right untop of me...but it was minor...throttle didn`t respond immediately, but i have seen worse....i used this Xtal in the dual corona RX...results are well within acceptable parameters.