@Arthur P. Bloom posted:Unless having the one connected side of the battery will do something wonky to the RF from the DCC et al.
That's a stretch from here to the moon, I can't even imagine why having an extra wire on the ground would have an effect.
@BOB WALKER posted:As a suggestion, I would recommend that you contact BlueRail Trains with your complex questions as they have a capable staff for this type of request.
No offense, but this doesn't seem to be a complex question. You don't have a complete circuit, and the possibility of it adversely affecting any RF connection seems to be very remote to be charitable.