We developed the software pycraf. It allows to analyse the compatibility between applications and services that make use of radio waves, for example mobile communications providers. The radio wave spectrum is very limited, which makes it important that devices do not interfere with each other. One major application of pycraf is to calculate protection criteria for radio astronomy observatories, which are extremely sensitive to man-made radio emission, potentially rendering them blind.

In this paper, we investigate the propagation of high-frequency current waves along a stochastic transmission line inside a rectangular cavity using as basis the model of a transmission line with the symmetry of the resonator. The stochastization of the line is created by a stochastically arranged chain of loads. Using similar models one also can take into account stochastic geometry of the line.