The Select GNSS Receivers dialog appears, if you do the following:
Use the dialog to select GNSS Receiver modules from the list of connected modules.
By default, the modules are alphabetically sorted according to their configuration names. By clicking the column headers of the list one may sort the list items according to any of the displayed properties, which include:
To select a module, make sure the respective check box is selected. There is no limitation to the number of selected instruments. The All button enables all connected modules for the current configuration, the None button disables all. At least one module has to be selected. By default, no module is selected.
The list item will display "Not in use" for the geographical coordinates and the Device Manager configuration name, if the following happens:
Thus, the selection of the disconnected receiver module is kept by default until the physical connection is up again.
If one removes the selection from the "Not in Use" receiver module, this entry will disappear from the list of modules after acceptance of the dialog as long as the module is not reconnected to the system.
If receiver modules are added to the system after the setup of a Synchronizer module (or if a physical connection is up again), they will automatically be available for selection, when you re-open this dialog.