Choke ring antenna vs ground plane?

[timd1971]

maybe this reading?:

Using REACH to survey under a tree canopy

The multi-track problem is exaggerated. It appears only at modern constructions and on the water. In forests, or rather on forest roads, this problem does not exist. [29-07-2018%2008-07-00] The example here concerns the use of the ReachM module in the AzusRTN receiver as a rover, the base is VRS. The choice of antenna for such a module is important. If we want to use a ground plate for our receiver then it must be 3D, not 2D (i.e. aluminum foil). The cheapest alternative is probably to put…