If the LEDs in one or both of your AR7000 receivers (the main and satellite) start flashing it means that at some point the receiver supply voltage dropped below 3.x volts and the software's automatically kicked in with it's "quick reconnect" feature. If you're playing with it on the ground and you've noticed it, it probably just means that you've turned the plane off and on again without turning off the radio. If it's happening in the air you might want to take a look at your receiver battery, switch etc to see where it's dropping voltage.