Sierra Nevada Corporation


Status: Pending


Documents and Communications: [refresh]

E-Mail generated [Oct 22 2021]Correspondence2021-10-22
E-Mail generated [Oct 22 2021]Correspondence2021-10-22
E-Mail generated [Oct 22 2021]Correspondence2021-10-22
E-Mail generated [Oct 22 2021]Correspondence2021-10-22
E-Mail generated [Nov 5 2021]Correspondence2021-11-05
E-Mail generated [Nov 16 2021]Correspondence2021-11-16
Dismissal Without Prejudice generated [Nov 23 2021]Correspondence2021-11-23
Dismiss E-mail Notification generated [Nov 23 2021]Correspondence2021-11-23
Application Form:
OET Special Temporary Authority Report

Applicant Name
Name of Applicant:  Sierra Nevada Corporation

Attention: William Tatar
Street Address: 18632 Jarkey Drive
P.O. Box:
City: Hagerstown
State: MD
Zip Code: 21742
E-Mail Address: [email protected]

Best Contact
Give the following information of person who can best handle inquiries pertaining to this application:  
Last Name: Tatar
First Name: William
Title: Systems Integration & Test Manager
Phone Number: 301-665-1294

Please explain in the area below why an STA is necessary:
SNC currently performing on a U.S. Government contract for the U.S. Army. Part of that contract requires us to test a receive only system located on an aircraft during flight. To perform testing we need to generate approximately 400 frequencies from a ground station from 20 Mhz to 1.0 Ghz. 186 of these frequencies lay within the band of 30 Mhz to 186 Mhz. The Transmit duty cycle of these frequencies is 10 milliseconds on and 25 milliseconds off. We will transmit 8 frequencies at a time with a CW tone until all frequencies have been transmitted then we would repeat the list again for a total of 4 hours one day and four hours the next day (2 day test) for one aircraft. I need to test 7 total aircraft over the next 24 months. The first aircraft is expected to test in mid- November 2019. We expect over the next two years to have perform this test a total of 14 times. Power level is expected to be 10W average. We would have a dedicated flight path for the aircraft and will be using a directional antenna for radiation.

Purpose of Operation
Please explain the purpose of operation:  The purpose of this operation is to collect data in an airborne environment that will be used to calibrate a special mission system that is used for geolocation purposes.

Callsign: WP9XNK
Class of Station: MO
Nature of Service: Experimental

Requested Period of Operation
Operation Start Date: 04/23/2021
Operation End Date: 10/22/2021

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
National Instruments 5480 VST 1 No
AR Amplifier 100U1000-F-N-F- 1 No
Antenna Products 1000-2242-204 1 No

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): William Tatar
Title of Applicant (if any): Engineering Manager
Date: 2021-10-22 00:00:00.0

Station Location
City State Latitude Longitude Mobile Radius of Operation
Hagerstown Maryland North  39  41  31 West  77  43  35 Hagerstown, MD 150.00
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 20.00000000-1000.00000000 MHz MO 10.000000 W 11.000000 W P 0.01000000 % 5K00N0N Carrier


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