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.)

Definition of facade sources for the propagation calculation.
Index Number, where F identifies facade sources.
Unique descriptor for a data set.
The source coordinates can be referred to one of the obstacles (building), though they can be moved with each other.
Location of the source in a 3-dimensional space identified by three coordinates.
Area of the source.
If a value is entered instead of a reference to a spectrum, it will replace all entries of the spectrum (in case of A-weighted calculations, it will also replace the column for the weighted levels).
see Operation within the tables and Sources