Hi, I am located in Southern Illinois, US. Running a pair of reach modules. They are working absolutely perfect. Great FIX, great logging of data etc.
My questions mostly revolve around datum and wording in Reachview and Rtklib.
- In reachview, setting up the base over a known point, I enter the lat, long and height, and below this I enter the instrument height.
Should the lat and long entered be in NAD83 or WGS84? Same question with the ellispsoid height of the station monument, do I enter NAD83 or WGS84 ellipsoid heights?
Pertaining to the logs that the reach creates and saves once the green light is achieved; are these raw datasets saved in any particular reference datum (NAD83 or WGS84, or ??)
When setting up a new survey in Reachview, you are warned that output is displayed using the WGS84 reference only. This makes me assume the rest of the reach and associated files also use WGS84 only. Any truth there?
RTKlib. What is the output (NAD or WGS). If it is one of those, can output be changed in rtklib without using a second conversion tool after post-processing?
In RTKlib, in options => positions =>base station, I’m not certain whether I should enter the station monument data here (lat, long, ellipsoid height) or not. This confusion is because I am assuming that since I am pulling logs from the reach, none of the setting in Reachview are retained in those logs (such as the base coords entered under base setup, especially since I have base corrections turned off since I am not using rtk). If I do enter the Nat. Geodetic Survey info for the monument into rtklib for the base station, do I convert to and enter WGS84 or the original NAD83? Using either reference datum, I assume I will still need to add the instruments antenna height to the monument data ellipsoid height to be correct.