Rural Area coverage of a HAPS platform at an altitude of 25 km can extend to a range of 230km or more – potentially interfering over an area of 170,000 square kilometres. Coverage is cellular and the systems will employ frequency re-use. Channelisation plans are system specific but it seems that the downlinks will use 11 MHz channels in 330 MHz total band.The study of sharing with existing services within the coverage area is therefore a complex analysis problem.

Using Visualyse Professional, all the essential elements of the HAPS system can be simulated – multiple spot beam antennas, multiple links on different frequencies and aggregate interference from the whole platform can be included in your analysis. Add to this the fact that Visualyse Professional can also model potential sharing services (FS, RA) in detail and it is clear that the problem can be addressed using simulation tools.