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This paper extends Wlodarcyzk's TLM multigridding-technique to the generalized one & two dimensional cases wherein the fine meshes can have different lengths & widths. The advantage is that it is no longer necessary to divide the problem space into separate 'coarse' & 'fine' regions which provides for considerable meshing flexibility. Equations describing the connection procedure for the SSCN are derived. Modelling of cross-talk between PCB tracks is implemented with this new method and the simulation results compared with experiments.obtaining the reflected pulses from the pulses incident on the interface is described for both polarizations.