I am a professional land surveyor and have a newly installed and configured Mosaic X5 GNSS base station. I have collected 17 hours of static raw GNSS data and have an OPUS solution for it. In the X5’s web interface I have entered the OPUS D-M-S formatted Lat & Long for NAD83(2011) into the X5’s Geodetic ARP Lat & Long and ellipsoidal elevation in meters for “ARP Altitude”. I have 0.000 entered for the ARP to Marker settings (I have no “marker”; it’s a roof mounted antenna. I am outputting the X5 base station to Emlid’s NTRIP Caster service and am successfully receiving a fixed position on a Carlson BRx7 rover using Carlson SurvCE data collection software.
The problem that I am having is that when checking into a known established control point at our office (75 feet from the base station) I check very well horizontally, but elevations are off approximately 0.33 feet. The rover has a correct rod height entered and is configured properly (just as with our normal everyday BRx7 base and BrX7 rover use). I am unsure where the problem lies - is it with SurvCE and something it’s doing adjusting the NTRIP’s base information or is it something I have wrong in the X5’s configuration? I can say that SurvCE in the Monitor-Skyplot “Ref” tab the base station’s NAD83(2011) Lat & Long & ellipsoidal height matches what I entered in the X5. In that “Ref” tab SurvCE does show the base antenna as a BRx7 with an antenna height of 6.12 feet, but this is simply being recalled as the last used base setup and it’s my understanding that this shouldn’t matter for the broadcast position.
Would it help if I provide any screenshots of the X5’s configuration?
Thank you,
-Garry