time to change the batteries?

[FRIDGE]

Every single holy moly time the same thing happens... first i start it up as regularly and then when i set it down in the backyard to see how its goin it runs fune but then it starts to go on its own... first i will work fine but whne i go for a long time it will just go crazy no i dont run a f/s of TRS because the LHS has neither can this be the batteries because i have put it back to stock settings and had the same result

HELP ME!!

 

[El Pirata]

Does it happen in the same area every time? If so it could be radio interference.

 

[FRIDGE]

i havent really tried i mean i go to the back of my backyard which is like 30 feet from the house i dont want to hit the street because i have no failsafe or TRS