Status of ITU-R Work On Agenda Item 1.6 M. Biggs September, 2006 Agenda Item 1.6 World Radiocommunication Conference 2007Agenda Item 1.6
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Two distinct categories of AM(R)S spectrum are required.
The first – for surface applications at airports – is distinguished by a high data throughput, however only moderate transmission distances and it is expected that a single resource can be shared at multiple geographic locations.
The second category, like the current Very High Frequency (VHF) AM(R)S, will require longer propagation distances (e.g. out to radio line-of-sight), moderate bandwidth, and a number of distinct channels to allow for sector-to-sector assignments.
Initial estimates of potential spectrum requirements have been determined taking into account evolving aeronautical applications, and integration of a new system on an aircraft. The estimates are:
approximately 60-100 MHz for surface applications at airports, and
approximately 60 MHz for radio line-of-sight applications.