Reading farther down that artile I just posted, there is a bit of "magic" that occurs when any two transmitters are exactly 23 channels apart that can take out every single conversion RX in the air, or at least the ones that aren't built to handle it.

18 + 23 = 41 = you're toasty. One of you is going to have to change channels, or you're going to have to get duel conversion RX's