Experimental Licensing System

1681-EX-ST-2026

EnduroSat, Inc.

Experimental Licensing System filing 1681-EX-ST-2026 submitted by EnduroSat, Inc..

Filing overview

StatusPending
Call signN/A
Date filed2026-08-21
Status date2026-08-21
FCC sourceView the FCC filing record

Special Temporary Authority application - Address

Attention:
Cody Chlanda
City:
Denver
E-Mail Address:
cody.chlanda@endurosat.com
State:
CO
Street Address:
1490 Curtis Street, Ste 230
Zip Code:
80202

Special Temporary Authority application - Applicant Name

Name of Applicant:
EnduroSat, Inc.

Special Temporary Authority application - Best Contact

First Name:
William
Last Name:
Chlanda
Phone Number:
4174998140
Title:
AIT Lead

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:
2026-08-20 00:00:00.0
Signature of Applicant (Authorized person filing form):
William Chlanda
Title of Applicant (if any):
AIT Lead

Special Temporary Authority application - Explanation

Please explain in the area below why an STA is necessary:
STA is needed to communicate with a pair of small satellites to complete ground testing in preparation for a launch in April 2027. To support this date, over-the-air RF testing would need to start in September 2026.

Special Temporary Authority application - Information

Class of Station:
FX
Nature of Service:
Experimental

Special Temporary Authority application - Manufacturer

Equipment 1 Experimental
No
Equipment 1 Manufacturer
NI
Equipment 1 Model Number
USRP-2900
Equipment 1 No. Of Units
2
Equipment 2 Experimental
Yes
Equipment 2 Manufacturer
EnduroSat
Equipment 2 Model Number
6U CubeSat
Equipment 2 No. Of Units
4
Equipment 3 Experimental
No
Equipment 3 Manufacturer
LabSat
Equipment 3 Model Number
LabSat 3
Equipment 3 No. Of Units
1

Special Temporary Authority application - Purpose of Operation

Please explain the purpose of operation:
Over-the-air RF testing of four small satellites carrying commercial payloads to verify the ability to uplink/downlink with a ground station and accept simulated space signals. S-Band uplink, S-Band downlink, X-Band downlink are being tested.

Special Temporary Authority application - Requested Period of Operation

Operation End Date:
02/05/2027
Operation Start Date:
09/07/2026

Frequencies

ActionLower MHzUpper MHzClassOutput WERP WEmissionSignal
Colorado0.05
NewFX2.00000060.000000187KF1DGMSK
NewFX2.0000006.300000187KF1DGMSK
ModifiedFX0.1000003.200000187KF1DGMSK
NewFX0.1000003.200000187KF1DGMSK
StateRadius of Operation

Sites

SiteLocationCoordinatesOperating areaCountyRadius
Denver, ColoradoNorth 39 44 46 West 104 59 450.05

Sources and provenance

SourceSource recordRetrievedMatch
ELS1681-EX-ST-20262026-08-26 05:10:51Direct Source Record
Selected field provenance
FieldDisplayed valueSourceObserved
StatusPendingELS 1681-EX-ST-20262026-08-26 05:10:51
Applicant NameEnduroSat, Inc.ELS 1681-EX-ST-20262026-08-26 05:10:51
Call SignN/AELS 1681-EX-ST-20262026-08-26 05:10:51
Receipt Date2026-08-21ELS 1681-EX-ST-20262026-08-26 05:10:51
Status Date2026-08-21ELS 1681-EX-ST-20262026-08-26 05:10:51

Documents

DocumentTypeDateStatus
Incoming generated [Aug 24 2026]Correspondence2026-08-24Available
Request for Information Response DiagramImages2026-08-24Available
E-Mail generated [Aug 24 2026]Correspondence2026-08-24Available