Special Temporary Authority application - Applicant Name
Name of Applicant:
Rainmaker
Special Temporary Authority application - Best Contact
First Name:
Samuel
Last Name:
Kim
Phone Number:
310-853-3127
Title:
Director of Regulatory
Special Temporary Authority application - Certification
Applicant 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.
Date:
2026-05-19 00:00:00.0
Signature of Applicant (Authorized person filing form):
Samuel Kim
Title of Applicant (if any):
Director of Regulatory
Special Temporary Authority application - Explanation
Please explain in the area below why an STA is necessary:
An STA is necessary to authorize the temporary operation of a ProSensing KASPR Ka-band scanning cloud radar for a 6-month atmospheric research field campaign. Operating a radar transmitter in the United States requires a Federal Communications Commission Part 5 Experimental Radio Station License before the equipment can be used. The experimental operation is strictly limited in duration, scheduled to run from October 1, 2026, through March 31, 2027, making a temporary authorization appropriate.
Special Temporary Authority application - Information
Callsign:
WA8XEU
Class of Station:
MO
Nature of Service:
Experimental
Special Temporary Authority application - Initial values - Purpose of Operation
Please explain the purpose of operation:
The primary objective of this campaign is to test scanning methods and software improvements in the validation of cloud seeding effects in a natural orographic cloud environment. Rainmaker Technology Corporation will deploy the KASPR radar, UAV-based seeding platforms, and supporting instrumentation to detect, characterize, and quantify radar signatures attributable to seeding-induced glaciation events. The campaign is designed to answer whether the emitted concentration of active ice nuclei is suspended long enough to create a measurable perturbation detectable by the scanning cloud radar. This radar-validated observational data will advance the scientific foundation of cloud seeding, demonstrate operational efficacy for drought relief to clients, and provide the evidentiary basis required to support future operational approvals and regulatory compliance.
Special Temporary Authority application - Manufacturer
Equipment 1 Experimental
No
Equipment 1 Manufacturer
ProSensing
Equipment 1 Model Number
KASPR
Equipment 1 No. Of Units
1
Special Temporary Authority application - Purpose of Operation
Please explain the purpose of operation:
Test scanning methods and software improvements in the validation of cloud seeding effects in a natural orographic cloud environment. The primary objective of this campaign is to test scanning methods and software improvements in the validation of cloud seeding effects in a natural orographic cloud environment. Rainmaker Technology Corporation will deploy the KASPR radar, UAV-based seeding platforms, and supporting instrumentation to detect, characterize, and quantify radar signatures attributable to seeding-induced glaciation events. The campaign is designed to answer whether the emitted concentration of active ice nuclei is suspended long enough to create a measurable perturbation detectable by the scanning cloud radar. This radar-validated observational data will advance the scientific foundation of cloud seeding, demonstrate operational efficacy for drought relief to clients, and provide the evidentiary basis required to support future operational approvals and regulatory compliance.
Special Temporary Authority application - Requested Period of Operation