WRC 2023 Agenda Item Details
| Agenda Item: | Agenda Item 1.12 |
| Resolution(s): | Resolution 656 (Rev. WRC-19) |
| Description of work: | This agenda item is to study a possible new secondary allocation to the EESS (active) service for spaceborne radar sounders within the range of frequencies around 45 MHz, taking into account the protection of incumbent services, including in adjacent bands. WRC-23 is invited to consider the results of studies on spectrum needs for a possible new secondary allocation to the EESS(Active) service for spaceborne radar sounders within the range of frequencies around 45 MHz taking into account the protection of incumbent services The ITU-R is invited to conduct studies on spectrum needs and sharing studies between the EESS(Active) service and the radiolocation, fixed, mobile, broadcasting, amateur and space research services in the 40 - 50 MHz frequency range and in adjacent bands |
| Comments: | The band 40 - 50 MHz is able to provide measurement of the Earth's subsurface, with the intent to locate water/ice deposits. Resolution 656 notes that these radars are intended to be operated in uninhabited or sparsely populated areas such as deserts and polar icefields and during night-time from 3 am to 6 am locally. |
| Lead Working Party(s): | WP 7C |
| Involved Working Parties: | WP 3K, WP 3L, WP 3M, WP 5A, WP 5B, WP 6A |
| How Visualyse products can help: | Visualyse Professional can the EESS (active) service and other services such as the radiolocation, fixed, mobile, broadcasting, amateur and space research services. A range of modelling methodologies can be used including static and dynamic including modelling of EESS orbits. Propagation models are available for space to space, space to Earth and terrestrial paths and Visualyse Professional can model both co-frequency and non-co-frequency interference scenarios |
| How Transfinite consultants can help: | We can undertake studies including analysis of sharing between the different services covered by this agenda item including EESS (active), radiolocation, fixed, mobile, broadcasting, amateur and space research services. We can help identify suitable system characteristics and sharing criteria, and provide contributions and representation at ITU-R Working Parties. Using our in house Visualyse Professional we can quickly model a very wide range of systems, services and scenarios. |
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