What kind of data do you need ? we have surveyed around pond already. Most of points are float because of trees.
Ntrip (Reach/Reach RS RTK Correction Data through Free NTRIP - Beginners), we follow these link. but use (https://youcors.com/ ) to test and register for using.
Mobile topographer, we had two reach, one for static and other one for collect data. if both of reach near each other, we can get fix. However, when we go bit far, it will change to float.