Morehead State University


Status: Pending


Documents and Communications: [refresh]

Antenna SketchImages2021-02-22
Antenna SketchImages2021-02-22
Application Form:
OET Special Temporary Authority Report

Applicant Name
Name of Applicant:  Morehead State University

Attention: Benjamin K Malphrus (Space Science Center)
Street Address: 235 Martindale Drive
P.O. Box:
City: Morehead
State: KY
Zip Code: 40351
E-Mail Address: [email protected]

Best Contact
Give the following information of person who can best handle inquiries pertaining to this application:  
Last Name: Malphrus
First Name: Benjamin
Title: Director, Space Science Center
Phone Number: (606) 783 2212

Please explain in the area below why an STA is necessary:
The Johns Hopkins University Applied Physics Laboratory (JHU/APL) with support from Morehead State University is working on anexperiment that will use the MSU 21-m antenna to radiate a range of power levels for reception by the Mini-RF radar package aboardthe Lunar Reconnaissance Orbiter (LRO). This signal, of known power level, will be used to establish a baseline amplitude so that areceived power level at the Mini-RF Antenna can be established. We estimate on-air activities should not exceed a three month period. JHU/APL previously applied for an STA, STA confirmation is EL892809 and file number is 0057-EX-STA-2021, but it was advised that Morehead State University submit the STA application since the ground station in use is at Morehead State.

Purpose of Operation
Please explain the purpose of operation:  A range of power levels that were injected into the LRO hosted Mini-RF receiver channels prior to flight did not show theimbalance that is now observed during the Earth-pointing measurements. It is possible that some element of the receiverchain has changed behavior during flight. It is therefore of interest to vary the power flux density at the antenna across arange of levels spanning that present during lunar backscatter and that present during Earth-pointing. Obtaining thatinformation is the purpose of the testing.

Class of Station: FX
Nature of Service: Experimental

Requested Period of Operation
Operation Start Date: 03/01/2021
Operation End Date: 08/30/2021

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
Stealth Microwave SR31720-50L 1 1 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): Benjamin K. Malphrus
Title of Applicant (if any): Director, Space Science Center, Morehead State
Date: 2021-02-22 00:00:00.0

Station Location
City State Latitude Longitude Mobile Radius of Operation
Morehead Kentucky North  38  11  31 West  83  26  20
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:   0.12
(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?   Yes
(a) Overall height above ground to tip of antenna in meters:   25.60
(b) Elevation of ground at antenna site above mean sea level in meters:   349.60
(c) Distance to nearest aircraft landing area in kilometers:   16.00
(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: Nearby antenna towers. Antenna is already built. Image of antenna included in exhibits.
Action Frequency Station Class Output Power/ERP Mean Peak Frequency Tolerance (+/-) Emission Designator Modulating Signal
New 7140.00000000-7147.00000000 MHz FX 25.000000 W 39810717.000000 W M 0.00010000 % 1K00N0N


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