FEDERAL COMMUNICATIONS COMMISSION
APPLICATION FOR SPECIAL TEMPORARY AUTHORITY

Applicant Name
Name of Applicant:  David W. Matolak (University of South Carolina)

Address
Attention: David W. Matolak
Street Address: 3A28 Swearingen Eng. Center, 301 Main Street
P.O. Box:
City: Columbia
State: SC
Zip Code: 29208
Country:
E-Mail Address: matolak@cec.sc.edu

Best Contact
Give the following information of person who can best handle inquiries pertaining to this application:  
Last Name: Matolak
First Name: David
Title: Professor
Phone Number: 803-777-8334

Explanation
Please explain in the area below why an STA is necessary:
A Special Temporary Authorization (STA) is required to support temporary air-ground channel measurements for NASA Advance Air Mobility program.

Purpose of Operation
Please explain the purpose of operation:  Measure air-to-ground (AG) channel characteristics in the C frequency band using a wideband (40 MHz) constant-envelope linear FM chirp signal. Airborne testing will be accomplished with a Ground Station (GS) transmitting from a site at Burke Lakefront Airport (BKL) and a receiver in a general aviation aircraft (likely a Gippsland G8) piloted by the Civil Air Patrol (CAP). We are requesting one frequency (5240 MHz) to be used in the Cleveland area;s our NASA sponsor is at Cleveland’s Glenn Research Center (GRC). This is a project led by Mosaic-ATM, with the University of South Carolina as subcontractor. Since AAM aircraft are envisioned to fly at low altitudes (e.g., 500-3000 feet AGL) near and within urban areas, the Cleveland metropolitan area represents an excellent test site since it has both large buildings and a nearby body of water, Lake Erie, from which very strong multipath reflections will occur. Laboratory and terrestrial field testing will be completed before the flight tests. The flight testing will take place on two consecutive days, with two flights planned per day. Each flight is expected to take approximately 30-60 minutes. NASA will aid in coordination with local FAA, ATC (at Cleveland Hopkins, CLE), BKL, and others to ensure all air traffic safety procedures are strictly followed. Measurements consist of transmission of our 40 MHz signal from the GS to the aircraft (one-way).

Information
Callsign: WW9XZI
Class of Station: FX
Nature of Service: Experimental

Requested Period of Operation
Operation Start Date: 05/10/2024
Operation End Date: 07/15/2024

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
Rohde & Schwarz SMW200A 1 No
Mini Circuits HPA-50W-63+ PA 1 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): David W. Matolak
Title of Applicant (if any): Professor
Date: 2024-03-04 00:00:00.0

Station Location
City State Latitude Longitude Mobile Radius of Operation
Cleveland Ohio North  41  31  4 West  81  40  57
Datum:  NAD 83
Is a directional antenna (other than radar) used?   Yes
Exhibit submitted:   No
(a) Width of beam in degrees at the half-power point:   80.00
(b) Orientation in horizontal plane:   260.00
(c) Orientation in vertical plane:   10.00
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 5220.00000000-5260.00000000 MHz FX 316.000000 mW 25.000000 W P 0.00010000 % 40M0F8N linear FM chirp