Status: Pending

Application Form:
OET Special Temporary Authority Report

Applicant Name
Name of Applicant:  CU Boulder RECUV/IRISS

Attention: Steve Borenstein
Street Address: 3775 Discovery Dr, UCB 429 - RM 255
P.O. Box:
City: Boulder
State: CO
Zip Code: 80303
E-Mail Address: [email protected]

Best Contact
Give the following information of person who can best handle inquiries pertaining to this application:  
Last Name: Borenstein
First Name: Steve
Title: Engineering Manager
Phone Number: 3037357558

Please explain in the area below why an STA is necessary:
Balloon state and telemetry from stratospheric balloons. Balloons can travel up to 200-300km at an altitude of 35-40km. Please note, the frequency range listed is our capable range. We are seeking a specific frequency assignment with bandwidth of 65-125khz. The modulation will be LoRa or FSK.

Purpose of Operation
Please explain the purpose of operation:  Research to study weather conditions, turbulence and particulates in the stratosphere.

Callsign: WQ9XKA
Class of Station: MO
Nature of Service: Experimental

Requested Period of Operation
Operation Start Date: 04/22/2020
Operation End Date: 10/10/2020

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
Experimental w/ Semtech SX1255 TBD 100 Yes

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): Steve Borenstein
Title of Applicant (if any): Engineering Manager
Date: 2020-03-16 00:00:00.0

Station Location
City State Latitude Longitude Mobile Radius of Operation
Colorado, Kansas, Nebraska United States (All 50) North      West      Colorado, Kansas, Nebraska
Datum:  NAD 83
Is a directional antenna (other than radar) used?   No
Exhibit submitted:   No
(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: Antenna is small - expected to be quarter-wave dipole mounted to balloon gondola.
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
New 435.00000000-438.00000000 MHz MO 5.000000 W 8.250000 W P 125KF1D LoRa


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