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2 Airborne platforms range from low altitude platforms (LAPs) operating at altitude up to a few kilometres to high altitude platforms (HAPS) that can operate at c. 20km. The term HIBS is used internationally to mean ‘high altitude platform station as IMT base station'. IMT stands for ‘International Mobile Telecommunications' and is the term used in the International Telecommunications Union to refer to the mass market mobile phones and associated networks. 3 Including beyond areas served the Shared Rural Network. The Shared Rural Network aims to have 95% combined coverage across the whole of the UK by the end of 2025 . More information is available on the Shared Rural Network website. 4 Connected Nations: Spring 2024 update , Ofcom. 5 The ITU defines MSS in Article 1.25 of the Radio Regulations as: "A radiocommunication service: – between mobile earth stations and one or more space stations, or between space stations used by this service; or – between mobile earth stations by means of one or more space stations. This service may also include feeder links necessary for its operation.” 6 Safety radio survey: how the ship administration should prepare for it. GMDSS Radio Survey Blog (gmdsstesters.com)
Improving mobile connectivity from the sky and space
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