Adam. Checked screen shot and height correct. Did not use monopole used regular rod through out to keep that out of play. Base was at 8.2 miles. Same setup that was used the previous time I tied into this control (base at house ) That time I just used standard boundary profile with verification you set up. Better vertical results less time. Previous vertical were +.00', +.13', +.04', +.03' and +.02'. on BR2A. This time with longer duration +.12', +.19', +.17' and +.17' on BR2A. Previous on other monument BR2 +.14', +.08', +.08', +.06' and +.10' using regular boundary profile RTPK. This time BR2 longer time +.02', +.01', +.04', +.09' and +.09'. Not bad. Is using the longer time and RTPK the problem or do I need to rethink how I do this? Mike