Abstract :
A study has been carried out with the following aims: To collect a large database of measured mobile radio field strengths, covering a wide variety of terrain and ground cover types; to compare the propagation characteristics at 1.8 GHz with those at 950 MHz; to investigate the behaviour of the mean field strength with distance from the transmitter; to investigate the statistics of `holes´ in the coverage area of each base station; to compare various path loss prediction models and evaluate their accuracy at both 950 MHz and 1.8 GHz; and to investigate the effect on the prediction accuracy of using terrain height databases with various resolutions. Preliminary results from this study have already been reported (see IEE colloquium on `National Radio Propagation Programme´, Digest No.004, London, p.14/1-5, 1991 and ICAP 91, IEE conf. publ. No.333, York, p.508-11 vol.1, 1991). At that time the measurements from the final three base stations in Wales had not been collected. The author places particular emphasis on those measurements, as well as presenting the overall conclusions from the study
