What kind of interference can satellite operators expect from WiMAX operation?
The ITU Table of Frequency Allocations (see Annex 1 for excerpt) lists ranges of frequencies allocated to the various radiocommunication services (eg. fixed-satellite service, mobile service, broadcasting service etc.) In order to make efficient use of the scarce radio spectrum, services that do not co-exist well without special sharing constraints are often allocated to the same frequency bands. Such frequency allocations are made either on a primary or secondary basis. A secondary service cannot cause interference into or claim protection from a primary service. Primary services must coordinate between themselves or share based on some pre-defined constraints. Sometimes primary service allocations are not compatible and administrations favour one or the other service in their national Table of Frequency Allocations. For example, both before and after WRC-07 the FIXED, MOBILE and the FIXED-SATELLITE services (capital letters indicate a primary allocation) in ITU Region 3 (Asia and Oce
