SRI International

1644-EX-ST-2017

Status: Grant Expired Due to New License

WM9XAS
2017-11-28

Documents and Communications: [refresh]

Description	Category	Date
E-Mail generated [Nov 27 2017]	Correspondence	2017-11-27
Incoming generated [Nov 27 2017]	Correspondence	2017-11-27
Grant E-mail Notification generated [Nov 28 2017]	Correspondence	2017-11-28
SRI response to FAA concern	Text Documents	2017-11-27
Experiment and System Description	Text Documents	2017-11-14

Application Form:

OET Special Temporary Authority Report

FEDERAL COMMUNICATIONS COMMISSION
APPLICATION FOR SPECIAL TEMPORARY AUTHORITY

Applicant Name

Name of Applicant:

SRI International

Address

Attention:	Ryan Peterson
Street Address:	2100 Commonwealth Blvd.
P.O. Box:
City:	Ann Arbor
State:	MI
Zip Code:	48105
Country:
E-Mail Address:	[email protected]

Best Contact

Give the following information of person who can best handle inquiries pertaining to this application:
Last Name: Peterson
First Name: Ryan
Title: Senior Research Engineer
Phone Number: 7349264439

Explanation

Please explain in the area below why an STA is necessary:
SRI is planning to test an experimental S-band radar system on a high altitude balloon over a 1 month period starting in November 2017. An STA license is necessary to operate the radar while the balloon is airborne. An STA license is also required for the balloon-ground two-way communication link needed to control the radar and downlink data while the balloon is airborne.

Purpose of Operation

Please explain the purpose of operation:

Testing an experimental S-band radar system on a high altitude balloon. The radar system is designed to generate synthetic aperture radar (SAR) and interferometric synthetic aperture radar imagery for the purpose of measuring land deformation. The radar will operate periodically while the balloon is airborne.

Information

Callsign:	WM9XAS
Class of Station:	MO
Nature of Service:	Experimental

Requested Period of Operation

Operation Start Date:	11/27/2017
Operation End Date:	02/28/2018

Manufacturer

Manufacturer	Model Number	No. Of Units	Experimental
List below transmitting equipment to be installed (if experimental, so state) if additional rows are required, please submit equipment list as an exhibit:
SRI International	S-band radar	1	Yes
Digi	XLR PRO	3	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):	Ryan Peterson
Title of Applicant (if any):	Senior Research Engineer
Date:	2017-11-14 00:00:00.0

Station Location

	City	State	Latitude	Longitude	Mobile	Radius of Operation
			North	West	42N-48N lat, 88W-98W long, 60,000 ft

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	910.00000000-920.00000000 MHz	MO	1.000000 W 2.000000 W	M	0.00001000 %	10M0F3D	Chirp Spread Spectrum

Action	Frequency	Station Class	Output Power/ERP	Mean Peak	Frequency Tolerance (+/-)	Emission Designator	Modulating Signal
New	910.00000000-920.00000000 MHz	MO	1.000000 W 22.000000 W	M	0.00001000 %	10M0F3D	Chirp Spread Spectrum

	City	State	Latitude	Longitude	Mobile	Radius of Operation
			North	West	42N-48N lat, 88W-98W long, 60,000 ft

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: 10.00
(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	2.94000000-2.95250000 GHz	MO	60.000000 W 7500.000000 W	M	0.00001000 %	12M5M3N	Linear FM chirp

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