Calculation will run with almost 2-fold (Dual Core) or 4-fold (Quad-Core) the speed.
Calculation will run up to 16-fold the speed. (Requires multiple networked sufficient PCs; Special Installation knowledge required.)

Consecutive number of a receptor point. NR is just used internally. When inserting rows, the relation to the collectives will change.
The receptor point-coordinates are usually derived from the Gauss-Krüger-System, however they can be defined freely. The coordinates' unit is meters.
The receptor point height in meters; 1.5 m is standard.
See Operations within the tables and Receptor points