STA Narrative and Technical Information

1753-EX-ST-2016 Text Documents

SES Government Solutions, Inc.

2016-12-21ELS_185790

Exhibit A Page 1 of 3 REQUEST FOR EXPERIMENTAL SPECIAL TEMPORARY AUTHORITY SES Government Solutions, Inc. (“SES-GS”) respectfully requests special temporary authority (“STA”) to conduct evaluation and demonstration of a 17 inch L-3 satellite ground terminal at a site in Bristow, VA for communications with the O3b Ka- band non-geostationary orbit satellite fleet. The Commission has previously authorized terminals in the U.S. to communicate with the O3b satellite network, 1 and has granted experimental STA for prior demonstrations involving the L-3 17-inch antenna. 2 For this set of tests, the terminal will use the O3b channel 5 frequencies (uplink to the O3b network in the 28.855-29.071 GHz frequency range and receive in the 19.055- 19.271 GHz frequency range). 3 Grant of the requested authority is consistent with Commission precedent and will serve the public interest by allowing SES-GS to conduct demonstrations of the O3b system’s capabilities to potential government customers. Information regarding the directional antenna is as follows: Width of the antenna beam in degrees 1.5 degrees at the half-power point Orientation of the antenna Azimuth sweep range is from in the horizontal plane 230 degrees to 130 degrees Orientation of the antenna Elevation will vary from 15 degrees up to in the vertical plane 33 degrees across the pass The terminal will be located at the SES Washington Media Port teleport in Bristow, Virginia. A map of the site is provided below. 1 See O3b Limited, File Nos. SAT-LOI-20141029-00118 & SAT-AMD-20150115-00004, Call Sign S2935, grant-stamped Jan. 22, 2015. 2 See L-3 Communications, File No.1370-EX-ST-2016, Call Sign WK9XJK, granted Sept. 20, 2016. 3 The instant STA request supersedes a previous SES-GS experimental STA filing that sought authority to use both the O3b Channel 3 frequencies and the O3b Channel 5 frequencies at this location. See SES Government Solutions, Inc., File No. 1488-EX- ST-2016. O3b has confirmed to SES-GS that the tests will use only the O3b Channel 5 frequencies, so SES-GS is no longer pursuing authority for the Channel 3 frequencies.

Exhibit A Page 2 of 3

Exhibit A Page 3 of 3 Information regarding the antenna’s transmit gain is as follows: The following table provides additional information regarding the data provided in the STA request: Channel Frequency 17 inch BUC ERP ERP EIRP EIRP (GHz) antenna Power (dBW) (Watts) (dBW) (Watts) gain (Watts) (dB) Channel 5 28.855 36.5 11.2 44.8 30404.7 47.0 49881.6 29.071 36.8 11.2 45.1 32579.2 47.3 53449.1 Notes: • EIRP and ERP Calculator: http://www.csgnetwork.com/antennaecalc.html • The BUC Power (Watts) numbers include losses between the output of the PA and the antenna input.


Document Created: 2016-12-21 11:52:26
Document Modified: 2016-12-21 11:52:26
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