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Radio propagation: Difference between revisions
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→Known limitations
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====Known limitations==== | ====Known limitations==== | ||
* The loading distance of terrain. For stations which are beyond the maximum configured terrain loading distance, path profiles will not be accurate and some errors are likely to occur in the signal loss figures. | * The loading distance of terrain. For stations which are beyond the maximum configured terrain loading distance, path profiles will not be accurate and some errors are likely to occur in the signal loss figures. The experimental [[Terrain_sampling | terrain sampler]] based on an elevation database attempts to get rid of tile loading distance as a factor in this. It is a work in progress though, while reliable it needs a separate toolset to generate the database. To be used only for very special purposes (ground radar?). | ||
* The current model does not take into account signal reflection from objects or terrain features, nor refraction caused by atmospheric conditions. | * The current model does not take into account signal reflection from objects or terrain features, nor refraction caused by atmospheric conditions. | ||