DavidKelleySCSC
commented
1 year ago Very tersely:
- Ensure it is in the final position
- Gather 4+ hours of observation data (RTCM 3.x measurements) to a file (log the data using 'log stream' into a file)
- Convert the RTCM messages to RINEX format using the rtkconv.exe tool and decimating the measurement to one per every 5 seconds.
- If you live in North America Send this data to US OPUS (https://geodesy.noaa.gov/OPUS/) or to Canadian NRCan (https://webapp.csrs-scrs.nrcan-rncan.gc.ca/geod/tools-outils/ppp.php?locale=en). If you live elsewhere, seek for the local government run service to do this for you.
- Take the resulting data and enter it into your base (save the result) or into your RTKlib tool so that this is the position it then reports out (in RTCM message MT1005 or MT1006). Done this way you do not have an antenna offset height, as that was part of the calculation (it was 'baked in'). Be sure to note what datum you used (frame of reference) because now all your rover devices will be reporting their locations using the same datum.
- Repeat this once a year to reconfirm and to account for any minor shifts.
Here are a couple of articles that provide more details. You can find many of others with a web search and the process is more or less the same work flow. (Full disclosure, I authored some of this). https://www.use-snip.com/kb/knowledge-base/how-to-quickly-locate-your-own-reference-ant/ https://www.use-snip.com/kb/knowledge-base/adding-base-station-location-to-strsvr/ https://www.use-snip.com/kb/knowledge-base/post-processing-your-measurements-by-opus-and-others/
can any one help me for the calibration of the base