GIBC (Graphical Interface for Batch Calculations) is a software package which provides the user with the ability to carry out calculations on satellite networks which allow determining the coordination requirements on satellite networks, relating to Power Flux Density (PFD) examination, Appendix 8 and Appendix 30B (Annexes 3 and 4), and on Earth stations relating to Appendix 7. The PFD/EIRP software examines satellite networks with respect to the PFD and EIRP limits in Article 21 and in Appendices 30 and 30B of the Radio Regulations. Different types of PFD calculations can be performed: with respect to terrestrial services, with respect to other space services (Appendix 30, Annex 1, Sections 3 and 6 and Appendix 30, Annex 4) and in application of Annex 3 of Appendix 30B.
PFD/EIRP GSO, previuously named PFD (terrestrial services), is
used to examine compliance of frequency assignments to GSO satellite networks
with hard limits, trigger limits or Rec608 level.
PFD for non-geostationary satellite (PFD/EIRP NGSO) networks or systems (non-GSO) was included in November 2019.
As a new development, PFD/EIRP Earth Station performing hard limits examination on Earth Stations, either specific and typical, has been introduced in April 2022.
Appendix 8 software determines the coordination requirements of a given satellite network through Appendix 8 calculations and the application of the coordination arc (see Appendix 5, Resolution 55 (WRC-2000) and circular letter CR/180). In comparison with the previous version of Gibc Appendix 8 (AP29), the new Appendix 8 software includes additional functionalities like the identification of individual lists of affected networks per each frequency assignement group, the treatment of secondary status frequency assignements and the new interactive report tool.
Appendix 30B Annex 4 uses C/I as technical criteria to evaluate interference.
Appendix 7 software determines the coordination area around an Earth station.
Appendix 30&30A is intended for checking the conformity of an assignment with respect to the PFD limits specified in Annex 1 Section 1 of the Appendix 30 and in Annex 1 Section 4 of the Appendix 30A. Power Control is a new functionality which allows to determine permitted increase in e.i.r.p. during rain attenuation for assignments over the Plan values according to the method described in Appendix 30A, Annex 3, section 3.11. Another recent development is FOS (Frequency Overlap Software) with performs coordination identification under Nos. 9.12, 9.12A, 9.13, 9.21/A and 9.21/B for geostationary and
non-geostationary satellite networks.
This product is available in English only.
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- Latest version of the software is SNS V9.1 compatible and it is available on the main software page.
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