I as well received a Caldera 10e for Christmas., and I have no issue running the car out of sight probably about 200 yards before losing range. I would call Redcat as they have excellent customer service and could possibly exchange the radio /receiver under warranty. On a side note I have beat the living heck out of this truck and have not had a single issue. And by the way the above referenced radio is the same that is supplied with the Caldera just rebranded with redcat stickers.