Attachment Att. A - Appendix 2

This document pretains to SAT-LOA-20051221-00267 for Application to Launch and Operate on a Satellite Space Stations filing.

IBFS_SATLOA2005122100267_473562

Appendix 2 to Attachment A (Technical Information to Supplement Schedule S) (ECHOSTAR-10) Analysis of ANNEX 1 of Appendix 30A for USABSS-26 at 110° W.L 1 (SUP - WRC-2000) 2 (SUP - WRC-2000) 3 Limits to the change in the overall equivalent protection margin with respect to frequency assignments in conformity with the Region 2 feeder- link Plan33 (WRC-2000) With respect to the modification to the Region 2 feeder-link Plan and when it is necessary under this Appendix to seek the agreement of any other administration of Region 2, except in cases covered by Resolution 42 (Rev.WRC-03), an administration is considered as being affected if the overall equivalent protection margin34 corresponding to a test point of its entry in that Plan, including the cumulative effect of any previous modification to that Plan or any previous agreement, falls more than 0.25 dB below 0 dB, or, if already negative, more than 0.25 dB below the value resulting from: – the feeder-link Plan as established by the 1983 Conference; or – a modification of the assignment in accordance with this Appendix; or – a new entry in the feeder-link Plan under Article 4; or – any agreement reached in accordance with this Appendix except for Resolution 42 (Rev.WRC-03). (WRC-03) See the Results described under Section 2 of Appendix 30 Annex 1 Analysis. 33 With respect to § 3 the limit specified relates to the overall equivalent protection margin calculated in accordance with § 1.12 of Annex 3. 34 For the definition of the overall equivalent protection margin, see § 1.11 of Annex 5 to Appendix 30.

4 Limits to the interference into frequency assignments in conformity with the Regions 1 and 3 feeder-link Plan or with the Regions 1 and 3 feeder- link List or proposed new or modified assignments in the Regions 1 and 3 feeder-link List (WRC-03) Does not apply to the Region 2 Plan. 5 Limits applicable to protect a frequency assignment in the bands 17.3- 18.1 GHz (Regions 1 and 3) and 17.3-17.8 GHz (Region 2) to a receiving space station in the fixed-satellite service (Earth-to-space) An administration in Region 1 or 3 is considered as being affected by a proposed modification in Region 2, with respect to § 4.2.2 a) or 4.2.2 b) of Article 4, or an administration in Region 2 is considered as being affected by a proposed new or modified assignment in the Regions 1 and 3 feeder-link List, with respect to § 4.1.1 c) of Article 4, when the power flux-density arriving at the receiving space station of a broadcasting- satellite feeder-link would cause an increase in the noise temperature of the feeder-link space station which exceeds the threshold value of T/T corresponding to 6%, where T/T is calculated in accordance with the method given in Appendix 8, except that the maximum power densities per hertz averaged over the worst 1 MHz are replaced by power densities per hertz averaged over the necessary bandwidth of the feeder-link carriers. (WRC-03) The following Table calculates the T / T for the closest Regions 1 and 3 feeder link space stations. As shown the T / T is well below the allowed 6% level. Therefore USABSS-26 is in conformity with this Section.

Closest Region 1 or 3 Feeder Link Space E/S E/S Range E/S Gain Victim Calculated Station Lat Long (km) towards Satellite T/T Beam Name Orbital Peak (°N) (°E) Victim Rx (%) Position Receive Satellite System Antenna (dBi) Noise Gain Temp (dBi) (K) F – OCE10100 -160 32.58 33.35 -111.80 38,975 -10 900 0.001% FJI – FJI19300 -178 44.16 33.35 -111.80 40,462 -10 900 0.017% SMO – SMO05700 -178 48.88 33.35 -111.80 40,462 -10 900 0.051% KIR – KIR__100 176 42.6 33.35 -111.80 41,002 -10 900 0.012% TUV – TUV00000 176 46.93 33.35 -111.80 41,002 -10 900 0.032% TON – TON21500 170.25 44.64 33.35 -111.80 41,530 -10 900 0.018% IRL – IRL21100 -37.2 48.08 33.35 -111.80 41,221 -10 900 0.041% NGR – NGR11500 -37.2 38.47 33.35 -111.80 41,221 -10 900 0.004% AND – AND34100 -37 48.88 33.35 -111.80 41,240 -10 900 0.049% GMB – GMB30200 -37 47.69 33.35 -111.80 41,240 -10 900 0.037% GUI – GUI19200 -37 42.29 33.35 -111.80 41,240 -10 900 0.011% POR – POR__100 -37 47.17 33.35 -111.80 41,240 -10 900 0.033% MTN – MTN__100 -36.8 37.55 33.35 -111.80 41,258 -10 900 0.004% SMR – SMR31100 -36.8 48.88 33.35 -111.80 41,258 -10 900 0.049% CPV – CPV30100 -33.5 47.56 33.35 -111.80 41,562 -10 900 0.036% DNK – DNK090XR -33.5 43.48 33.35 -111.80 41,562 -10 900 0.014% DNK – DNK091XR -33.5 44.73 33.35 -111.80 41,562 -10 900 0.019% G – G02700 -33.5 43.23 33.35 -111.80 41,562 -10 900 0.013% ISL – ISL04900 -33.5 46.67 33.35 -111.80 41,562 -10 900 0.029% ISL – ISL05000 -33.5 44.67 33.35 -111.80 41,562 -10 900 0.018% LBR – LBR24400 -33.5 45.13 33.35 -111.80 41,562 -10 900 0.020% SRL – SRL25900 -33.5 47.2 33.35 -111.80 41,562 -10 900 0.033% 6 Limits applicable to protect a frequency assignment in the band 17.8- 8.1 GHz (Region 2) to a receiving feeder-link space station in the fixed- satellite service (Earth-to-space) (WRC-03) Does not apply to Region 2 Plan.


Document Created: 2005-12-27 15:28:39
Document Modified: 2005-12-27 15:28:39
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