Glad to hear you liking the Apex. Hard to say with the wireless connection. Almost sounds like something was interfering with yours. Like maybe a drone or something in the area. Then the next time they worked fine. I know alot of the wireless systems allow you to change channels to people can hunt together in close proximity.

XP, GARRETT,NOKTA/MAKRO,NEL,DETECH,LESCHE,DETECTOR PRO
Local Nevada swinging buddy & dealer friend
Liebelt1@gmail.com 775 388 8277