WRC 2007 Agenda Item Details

Agenda Item: Agenda 1.21
Resolution(s): Resolution 739 [COM4/15], 740 [COM4/17]
Description of work: This agenda item refers to compatibility between the radio astronomy service and active space services (such as FSS, BSS, MSS and RNSS) in frequency bands from 150.05 MHz to 22.5 GHz. Resolution 739 [COM 4/15] refers to procedures that could be used during the design of an active space service system or after lauch by which the RAS can enter into consultations with satellite operators to facilitate a mutually acceptable solution to any problem identified. It also notes that studies for some active space services at some bands are incomplete, and therefore that this work should be undertaken to update the table of thresholds in Table 1-1 of Resolution 739 [COM 4/15]. In addition Resolution 740 [COM 4/17] identifies an additional series of bands and services for which further study is required, which could result in updates to existing Recommendations (e.g. SM 1633) or development of new Recommendations, and/or an update to Table 1-1 of Resolution 739 [COM 4/15].
Lead Working Party(s): TG 1/9
Involved Working Parties: TG 1/9, WP 4A, WP 6S, WP 7D, WP 8D
How Visualyse products can help: Visualyse Professional can be used to calculate levels of in-band or out-of-band interference from all the active space services required including GSO and non-GSO systems into the radio astronomy service, calculating PFD and EPFD levels where necessary.
How Transfinite consultants can help: We can undertake studies including analysis of sharing between the services covered by this agenda item, and identify suitable system characteristics and sharing criterias, and provide contributions and representation at relevant ITU-R Working Parties. We have extensive experience in issues relating to examining sharing with the radio astronomy from previous studies applying the thresholds in ITU-R Rec. SA 769 to the 42.5 - 43.5 GHz band and calculation of EPFD and PFD from numerous satellite sharing studies.
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