Running them trucks today, and I noticed that I would loose TX-RX connection after about 100 meters out (320 feet).
It was an open area, nothing between TX and the truck.

I have used the "red i" TQi TX with the iPhone Docking Base for years before, and I can remember my range having been definitely at least twice that distance.

Now I was thinking, maybe the newer Bluetooth module being placed near the antenna en then the phone on top of antenna (the Traxxas mount), with an active Bluetooth connection are effectively decreasing range, as they might cause interference?