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The paper summarises the results of a measurement campaign performed to characterise Inmarsat's broadband global area network extension (BGAN-X) L-band land vehicular channels as a function of elevation angle and candidate antenna systems. The measurements were conducted at three elevation angles with three antenna types on UK motorways around the London area. These measurements comprise of simultaneous...
Results of a recent multiband propagation measurement campaign for the high elevation angle land mobile satellite channel are reported. Simultaneous narrowband sounding of the channel has been carried out in suburban, wooded and open areas of the UK using a helicopter-mounted platform to simulate the satellite signal at various elevation angles. Propagation related link degradations in the land mobile-satellite...
Measurement results of radio-frequency field strength from cellular telephones are reported. Transportable and hand-held portable sets were used for the study, and their radiation levels were compared with the International Radiation Protection Agency (IRPA) and UK exposure standards as a function of distance for two operational environments. The hand-held portable set, which uses very low-power transmissions,...
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