that's what I'm thinking. Yet VT rtn specifically says it's reference frame is NAD83. I looked at my MN profile and I've set that to WGS84 a few years back (also a trimble network). Are all the Trimble rtn's broadcasting WGS84 while stating their reference frame is NAD83? The Leica rtn in NY states NAD83 and that's what I set the profile reference frame to. Seems to be different definitions of reference frame going on that could cause problems.It sounds like you have the wrong reference frame selected for the RTN profile. This RTN may be broadcasting WGS84 coordinates instead of NAD83.