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SE40_39
Last update: 02-02-2024
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ECC Report
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Amateur and RNSS in the band 1240-1300 MHz
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FM44_36
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To develop possible scenarios with conditions or limitations that may be applied to the amateur service to ensure the future coexistence of both services and avoid cases of interference considering the allocations in the frequency band 1240 - 1300 MHz to the radionavigation-satellite service (RNSS) with a primary status and to the amateur service and a portion to the amateur-satellite service, both with asecondary status as well as to other services.
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S: 02-10-2019
T: 31-10-2024
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Due toan interference caused by an application of the radio amateur service to astation of the RNSS two measurement campaigns were carried out (see document FM44(19)017). To avoid any interference in the future it may be necessary to determine conditions or limitations to the amateur/amateur satellite service.
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In Progress
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SE40_45
Last update: 02-02-2024
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ECC Report
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Aggregated interference of satellite systems into RAS
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Based on relevant ITU-R Recommendations and Reports such as Recommendation ITU-R M.1583 “Interference calculations between non-geostationary mobile-satellite service or radionavigation-satellite service systems and radioastronomy telescope sites” and Recommendation ITU-R S.1586-1 “Calculation of unwanted emission levels produced by a non-geostationary fixed-satellite service system at radio astronomy sites”, use the methodology to assess the aggregate data loss resulting from multiple NGSO satellite systems to RAS by means of epfd studies and analyse how the individual satellite systems contribute to the aggregate data loss.
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S: 30-09-2021
T: 31-01-2025
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The following questions could be addressed:
- how are estimates of the aggregate data loss possible, when certain information is missing? (e.g., if not all technical parameters are available for all systems)
- Sensitive analysis on the technical parameters such as constellation types, orbital distribution, duty cycles etc. influence the aggregation of the data loss?
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In Progress
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SE40_46
Last update: 02-02-2024
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ECC Report
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Technical studies on small IoT transmit-only satellite terminals for land and maritime applications transmitting in the 5850-5875 MHz band and the 14.0-14.5 GHz band
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FM44_45
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to define the spectrum occupancy and device density scenarios needed to carry out the relevant technical studies for such terminals considering a licence exempt regime (unknown location, no individual coordination);
to study sharing and compatibility in the C and Ku bands in order to define acceptable characteristics for small IoT transmit-only satellite terminals in the 5850-5875 MHz band and 14.0-14.5 GHz band."
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S: 03-02-2023
T: 31-01-2025
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This WI is related to satellite terminals with limited e.i.r.p., antenna with low directivity and that are not under the control of a satellite system. It is intended to support WG FM/FM44 activities on exemption from individual licensing for small IoT transmit-only satellite terminals for land and maritime applications transmitting in the 5850-5875 MHz band and 14.0-14.5 GHz band. Several ECC Reports could be produced (e.g. for the spectrum occupancy scenarios and for coexistence in each of the bands).
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In Progress
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SE40_47
Last update: 08-06-2023
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Rev. ECC Report
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Further compatibility studies on Space X (Starlink) NGSO satellite systems operating in 10.7-12.75 GHz and in the 14 - 14.5 GHz FSS allocations.
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FM44_28
SE40_28
SE40_35
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Update of radio astronomy coexistence studies based on updated technical parameters with respect to Space X (Starlink) NGSO satellite systems in the bands 10.7-12.75 GHz (space-to-Earth) and in the 14 - 14.5 GHz (Earth-to-space).
There is also the intent to include laboratory, satellite-monitoring, and radio astronomy station measurements of the deployed satellites and equipment, considering also the technological change of the different generations of satellites of existing systems subject to availability of this information.
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S: 09-06-2023
T: 31-01-2025
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In Progress
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