FEDERAL COMMUNICATIONS COMMISSION
APPLICATION FOR SPECIAL TEMPORARY AUTHORITY

Applicant Name
Name of Applicant:  Microsoft Corporation

Address
Attention: Sidney Roberts
Street Address: One Microsoft Way
P.O. Box:
City: Redmond
State: WA
Zip Code: 98052
Country:
E-Mail Address: siro@microsoft.com

Best Contact
Give the following information of person who can best handle inquiries pertaining to this application:  
Last Name: Roberts
First Name: Sidney
Title: Principal Program Manager, TV White Spaces
Phone Number: (206) 696-6663

Explanation
Please explain in the area below why an STA is necessary:
Microsoft hereby requests Special Temporary Authority to support its efforts to restore communications capability in areas of Puerto Rico and the United States Virgin Islands affected by hurricanes Irma and Maria. This amendment adds the United States Virgin Islands as an additional area of operation, and requests authorization to operate white-space devices by manually determining and selecting a permissible channel of operation using a certified white-space database not less than once every 24 hours, rather than doing so by accessing a white-space database over the Internet to determine available channels when the over-the-Internet method is not possible. TV white spaces is an ideal technology for connecting communities in Puerto Rico that currently lack sufficient communications capabilities in the wake of these natural disasters. Microsofts intention is to operate TV white space radios on channels authorized for use across Puerto Rico supporting the recovery efforts of Net Hope, Claro, and others. In these same areas, many broadcast television operators are currently off the air due to the effects of these storms, but channel availability and power limits remain restricted for white-spaces operations on or adjacent to these channels. Microsoft seeks authorization, when permitted by the applicable broadcast licensee, to operate on these temporarily unused channels, or operate on adjacent channels subject to greater power limits and other rules that would apply if the first-adjacent channel were not occupied by a broadcast licensee. Microsoft would only operate on these channels or at these elevated power levels with the affirmative consent of the relevant broadcasters, in coordination with each potentially affected broadcaster, and will return to ordinary operations under the Commissions rules when informed that the broadcaster has resumed operations.

Purpose of Operation
Please explain the purpose of operation:  The purpose of the STA is to support Microsofts efforts to restore communications capability in areas of Puerto Rico and U.S.V.I affected by Hurricanes Irma and Maria.

Information
Callsign: WL9XZS
Class of Station: MO
Nature of Service: Experimental

Requested Period of Operation
Operation Start Date: 05/10/2018
Operation End Date: 11/07/2018

Manufacturer
List below transmitting equipment to be installed (if experimental, so state) if additional rows are required, please submit equipment list as an exhibit:  
Manufacturer Model Number No. Of Units Experimental
Adaptrum ACRS 2.0 42 No

Certification
Neither the applicant nor any other party to the application is subject to a denial of Federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. Section 862, because of a conviction for possession or distribution of a controlled substance. The applicant hereby waives any claim to the use of any particular frequency or electromagnetic spectrum as against the regulatory power of the United States because of the prvious use of the same, whether by license or otherwise, and requests authorization in accordance with this application. (See Section 304 of the Communications Act of 1934, as amended.) The applicant acknowledges that all statements made in this application and attached exhibits are considered material representations, and that all the exhibits part hereof and are incorporated herein as if set out in full in this application; undersigned certifies that all statements in this application are true, complete and correct to the best of his/her knowledge and belief and are made in good faith. Applicant certifies that construction of the station would NOT be an action which is likely to have a significant environmental effect. See the Commission's Rules, 47 CFR1.1301-1.1319.
Signature of Applicant (Authorized person filing form): Michael Daum
Title of Applicant (if any): Director, Technology Policy
Date: 2018-05-08 00:00:00.0

Station Location
City State Latitude Longitude Mobile Radius of Operation
Puerto Rico North      West      Puerto Rico, as described in attached exhibit.
Datum:  NAD 83
Is a directional antenna (other than radar) used?   Yes
Exhibit submitted:   Yes
(a) Width of beam in degrees at the half-power point:  
(b) Orientation in horizontal plane:  
(c) Orientation in vertical plane:  
Will the antenna extend more than 6 meters above the ground, or if mounted on an existing building, will it extend more than 6 meters above the building, or will the proposed antenna be mounted on an existing structure other than a building?   No
(a) Overall height above ground to tip of antenna in meters:  
(b) Elevation of ground at antenna site above mean sea level in meters:  
(c) Distance to nearest aircraft landing area in kilometers:  
(d) List any natural formations of existing man-made structures (hills, trees, water tanks, towers, etc.) which, in the opinion of the applicant, would tend to shield the antenna from aircraft:
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
New 54.00000000-72.00000000 MHz MO 10.000000 W 6.000000 W P 6M00G1W
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
New 76.00000000-88.00000000 MHz MO 10.000000 W 6.000000 W P 6M00G1W
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
New 180.00000000-216.00000000 MHz MO 10.000000 W 6.000000 W P 6M00G1W
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
New 476.00000000-608.00000000 MHz MO 10.000000 W 6.000000 W P 6M00G1W
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
New 614.00000000-698.00000000 MHz MO 10.000000 W 6.000000 W P 6M00G1W

City State Latitude Longitude Mobile Radius of Operation
Virgin Island North      West      U.S.V.I., as described in attached exhibit.
Datum:  NAD 83
Is a directional antenna (other than radar) used?   Yes
Exhibit submitted:   Yes
(a) Width of beam in degrees at the half-power point:  
(b) Orientation in horizontal plane:  
(c) Orientation in vertical plane:  
Will the antenna extend more than 6 meters above the ground, or if mounted on an existing building, will it extend more than 6 meters above the building, or will the proposed antenna be mounted on an existing structure other than a building?   No
(a) Overall height above ground to tip of antenna in meters:  
(b) Elevation of ground at antenna site above mean sea level in meters:  
(c) Distance to nearest aircraft landing area in kilometers:  
(d) List any natural formations of existing man-made structures (hills, trees, water tanks, towers, etc.) which, in the opinion of the applicant, would tend to shield the antenna from aircraft:
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
New 54.00000000-72.00000000 MHz MO 10.000000 W 6.000000 W P 6M00G1W
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
New 76.00000000-88.00000000 MHz MO 10.000000 W 6.000000 W P 6M00G1W
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
New 180.00000000-216.00000000 MHz MO 10.000000 W 6.000000 W P 6M00G1W
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
New 476.00000000-608.00000000 MHz MO 10.000000 W 6.000000 W P 6M00G1W
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
New 614.00000000-698.00000000 MHz MO 10.000000 W 6.000000 W P 6M00G1W