My only experience with BlueTooth has been the use of my two Bachmann EZ-App HO locos, and I have seen no issues with range even when my modules were set up in a large auditorium type room in a local library that also contained my club’s O 3-Rail modular layout and also their G scale modular layout. My HO modules were set up along one wall, and I had no problem controlling my locos from anywhere in the room. I did have trouble seeing the locos from the far corners, but the BT still had control. If you can’t see your trains clearly, you can’t really control them. Because O scale is twice as large as HO, it would be easier to see, but how far away from your train do you really want to be? I did notice that dirty tracks caused me some problems, but dirty track can be an issue whatever control system you are using (except with battery power). Once the tracks were cleaned those problems went away. Range was definitely not a problem with my Bachmann EZ-App BT locos (EZ-App boards were developed by BlueRail Trains for Bachmann).
Bill in FtL
