The mobile, fixed, amateur and amateur-satellite services have proven to be of huge importance in the fields of disaster prediction, detection, mitigation and relief.
Mobile service cellular applications may be used in an early warning system, as they enable authorities to establish direct contact with the citizens having a mobile receiver.
The maritime mobile service is familiar with the Global Maritime Distress and Safety System (GMDSS).
Disasters may demolish radiocommunication infrastructures; in such cases, the amateur and amateur-satellite services enable communication links in areas affected by natural disasters to be maintained.
Study Group 5 is working on these issues via Questions ITU‑R:
209-5/5 – Use of the mobile and amateur services and associated satellite services to the improvement of disaster communications;
248/5 – Technical and operational characteristics for systems in the fixed service used for disaster mitigation and relief.
Recommendation ITU‑R F.1105 “Fixed wireless systems for disaster mitigation and relief operations" (with an appendix on a Regional Digital Simultaneous Communication System (RDCSS)).
M.1042 “Disaster communications in the amateur and amateur-satellite services".
M.1637 “Global cross-border circulation of radiocommunication equipment in emergency and disaster relief situations".
M.1826 “Harmonized frequency channel plans in the band 4 940‑4 990 MHz for broadband public protection and disaster relief radiocommunications in Regions 2 and 3".
M.2009 “Radio interface standards for use by public protection and disaster relief operations in some parts of the UHF band in accordance with Resolution 646 (WRC‑03)".
M.2015 “Frequency arrangements for public protection and disaster relief radiocommunication systems in accordance with Resolution
Reports ITU‑R F.2061 and ITU-R F.2087 discuss the role of HF radiocommunication systems in disaster relief operations.
M.2085 “Role of the amateur and amateur-satellite services in support of disaster mitigation and relief".
M.2291 “The use of International Mobile Telecommunications for broadband public protection and disaster relief applications".
M.2377 “Radiocommunication objectives and requirements for Public Protection and Disaster Relief (PPDR)".
M.2415 “Spectrum needs for Public Protection and Disaster Relief (PPDR)".