The design of multipoint video distribution systems

One of the central design parameters required for the planning of future MVDS broadcasting is the minimum allowable terrestrial spacing of coverage areas to allow interference-free frequency re-use. The aim of the Essex/DTI project is to set up a 41 GHz experiment over coastal terrain which will simulate a path likely to experience meteorological conditions leading to anomalous millimetric propagation. The results will allow statistical data to be gathered so that the likely mutual interference between copolarised MVDS´s can be measured and design criteria established. It is hoped to add a cross-polarised receive chain to provide similar information for the evaluation of interference between cross-polarised systems