Participants at a November ITU-R meeting on terrestrial services will...
Participants at a November ITU-R meeting on terrestrial services will consider and possibly approve two new recommendations and revisions to 12 others, the Radiocommunication Bureau said in a letter to members. Participants could also decide to consult with administrations before…
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final approval is made or to send the recommendations to the 2012 Radiocommunication Assembly, it said. One new recommendation deals with certain frequency arrangements for public protection and disaster relief radiocommunication systems in UHF bands. The recommendation addresses arrangements in the ranges 746-806 MHz and 806-869 MHz in the Americas, and 806-824/851-869 MHz in some Asia-Pacific countries, it said. It also addresses arrangements in the ranges 380-470 MHz in countries in Europe and Africa, countries formerly in the Soviet Union and certain countries in the Middle East, it said. Revisions to other recommendations deal with the development of criteria for sharing between the fixed and other services, and the evaluation of interference from high-altitude platform (HAPS) gateway links (HAPS-to-ground direction) in the fixed service to conventional fixed wireless systems in the range 5850-7075 MHz (CD Aug 1 p9), it said. Other draft changes separately revise channel arrangements for medium- and high-capacity digital fixed wireless systems operating in the upper 6425-7125 MHz band, and fixed wireless systems operating in the 7110-7990 MHz, 10, 11, 14.4-15.35, 18, 23, and 38 GHz bands, it said. Proposed changes also address generic unwanted emission characteristics of mobile stations using the terrestrial radio interfaces of IMT-2000, and the calculation of the maximum power density (averaged over 4 kHz) of an angle modulated carrier, it said.