Attachment Technical Appendix

This document pretains to SES-STA-20180307-00202 for Special Temporal Authority on a Satellite Earth Station filing.

IBFS_SESSTA2018030700202_1350518

TECHNICAL APPENDIX RBC Signals LLC 60-Day Special Temporary Authorization (STA) I. 400 MHz Yagi Radiation Hazard Report II. Draft FCC Form 312 Schedule B

Radiation Hazard Study 400 MHz Earth Station This study analyzes the non-ionizing radiation levels for a 400 MHz Yagi tracking earth station. This report is developed in accordance with the prediction methods contained in OET Bulletin No. 65, Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields, Edition 97-01. Bulletin No. 65 specifies that there are two separate tiers of exposure limits that are depending on the area of exposure and/or the status of the individuals who are subject to the exposure -- the General Population/Uncontrolled Environment and the Controlled Environment, where the general population cannot access. The maximum level of non-ionizing radiation to which individuals may be exposed is limited to a power density level of 1.33 milliwatts per square centimeter (1.33 mW/cm2) averaged over any 6 minute period in a controlled environment, and the maximum level of non-ionizing radiation to which the general public is exposed is limited to a power density level of 0.27 milliwatt per square centimeter (0.27 mW/cm2) averaged over any 30 minute period in a uncontrolled environment. In the normal range of transmit powers for satellite antennas, the power densities at or around the antenna surface are expected to exceed safe levels. The purpose of this study is to determine the power flux density levels for the earth station under study as compared with the MPE limits. This comparison is done in each of the following regions: 1. Far-field region 2. Near-field region 3. Transition region 4. The region between the antenna edge and the ground Input Parameters The following input parameters were used in the calculations: Parameters: Value Unit Symbol Antenna Diameter 3.57 m D Antenna Transmit Gain 16.2 dBi G Transmit Frequency 400 MHz f Power Input to the Antenna 12.53 W P Calculated Parameters: The following values were calculated using the above input parameters and the

corresponding formulas: Parameter Value Unit Symbol Formula Antenna Surface Area 1.964 m2 A Gλ2/(4π)/λ Antenna Efficiency 0.95 η Gλ2/( π2D2) Gain Factor 41.7 g 10 G/10 Wavelength 0.75 m λ 300/f Behavior of EM Fields as a Function of Distance The behavior of the characteristics of EM fields varies depending on the distance from the radiating antenna. These characteristics are analyzed in three primary regions: the near-field region, the far-field region and the transition region. Of interest also is the region between the antenna and ground. For yagi antennas with circular cross sections, such as the antenna under study, the near- field, far-field and transition region distances are calculated as follows: Parameter Value Unit Formula Near-Field Distance 4.25 m Rnf = D2/(4λ) Distance to Far-Field 10.2 m Rff = 0.60D2/(λ) Distance of Transition Region 4.25 m Rt = Rnf The distance in the transition region is between the near and far fields. Thus, R nf < Rt < Rff. However, the power density in the transition region will not exceed the power density in the near-field. Therefore, for purposes of the present analysis, the distance of the transition region can equate the distance to the near-field. Power Flux Density Calculations The power flux density is considered to be at a maximum through the entire length of the near-field. This region is contained within a cylindrical volume with a diameter, D, equal to the diameter of the antenna. In the transition region and the far-field, the power density decreases inversely with the square of the distance. The following equations are used to calculate power density in these regions. Parameter Value Unit Symbol Formula Power Density in the Near-Field 2.42 mW/cm2 Snf 16.0 η P/(πD2) Power Density in the Far-Field 0.04 mW/cm2 Sff GP/(4π Rff2) Power Density in the Transition Region 2.42 mW/cm2 St Snf Rnf /(Rt) The power density between the antenna and ground, is calculated as follows: Parameter Value Unit Symbol Formula Power Density b/w Reflector and Ground 0.64 mW/cm2 Sg P/A The below table summarizes the calculated power flux density values for each region. In a controlled environment, the only regions that exceed FCC limitations are shown below.

These regions are only accessible by trained technicians who, as a matter of procedure, turn off transmit power before performing any work in these areas. Power Density Value Unit Controlled Environment Far Field Calculation 0.04 mW/cm2 Satisfies FCC MPE Near Field Calculation 2.42 mW/cm2 Exceeds Limits Transition Region 2.42 mW/cm2 Exceeds Limits Region b/w Antenna & Ground 0.64 mW/cm2 Satisfies FCC MPE In conclusion, the results show that the antenna, in a controlled environment, may exist in the regions noted above and applicant will take the proper mitigation procedures to ensure it meets the guidelines specified in 47 C.F.R. § 1.1310. The earth station will be marked with the standard radiation hazard warnings, as well as the area in the vicinity of the earth station to inform the general population, who might be working or otherwise present in or near the path of the main beam. The applicant will ensure that the main beam of the antenna will be pointed at least one diameter away from any building, or other obstacles in those areas that exceed the MPE limits. Since one diameter removed from the center of the main beam the levels are down at least 20 dB, or by a factor of 100, public safety will be ensured. Finally, the earth station’s operational personnel will not have access to areas that exceed the MPE limits while the earth station is in operation. The transmitter will be turned off during periods of maintenance so that the MPE standard of 1.33 mW/cm2 will be complied with for those regions in close proximity to the antenna, which could be occupied by operating personnel.

3/6/2018 licensing.fcc.gov/ibfsweb/ib.page.FetchForm?id_app_num=114146&form=P013_101.htm&mode=display Approved by OMB 3060-0678 Date & Time Filed: File Number: --- Callsign/Satellite ID: APPLICATION FOR EARTH STATION AUTHORIZATIONS FCC Use Only FCC 312 MAIN FORM FOR OFFICIAL USE ONLY APPLICANT INFORMATION Enter a description of this application to identify it on the main menu: DRAFT FORM TO SUPPORT 60-DAY STA REQUEST (AS) 1-8. Legal Name of Applicant Name: RBC Signals, LLC Phone Number: 404-803-7734 DBA Fax Number: Name: Street: 2205 152nd Ave NE E-Mail: crichins@rbcsignals.com City: Redmond State: WA Country: USA Zipcode: 98052 - Attention: Mr. Christopher Richins 9-16. Name of Contact Representative Name: Carlos Nalda Phone Number: 5713325626 Company: LMI Advisors Fax Number: Street: 2550 M Street NW E-Mail: cnalda@lmiadvisors.com Suite 345 City: Washington State: DC Country: USA Zipcode: 20037- Attention: Mr. Carlos Nalda Relationship: Other CLASSIFICATION OF FILING 17. Choose the button next to the b. classification that applies to this filing b1. Application for License of New Station for both questions a. and b. Choose only b2. Application for Registration of New Domestic Receive-Only Station one for 17a and only one for 17b. (N/A) b3. Amendment to a Pending Application (N/A) b4. Modification of License or Registration a. (N/A) b5. Assignment of License or Registration a1. Earth Station (N/A) b6. Transfer of Control of License or Registration (N/A) a2. Space Station (N/A) b7. Notification of Minor Modification (N/A) b8. Application for License of New Receive-Only Station Using Non-U.S. Licensed Satellite (N/A) b9. Letter of Intent to Use Non-U.S. Licensed Satellite to Provide Service in the United States b10. Other (Please specify) b11. Application for Earth Station to Access a Non-U.S.satellite Not Currently Authorized to Provide the Proposed Service in the Proposed Frequencies in the United States. 17c. Is a fee submitted with this application? If Yes, complete and attach FCC Form 159. If No, indicate reason for fee exemption (see 47 C.F.R.Section 1.1114). Governmental Entity Noncommercial educational licensee Other(please explain): DRAFT FORM 17d. Fee Classification 18. If this filing is in reference to an 19. If this filing is an amendment to a pending application enter: http://licensing.fcc.gov/ibfsweb/ib.page.FetchForm?id_app_num=114146&form=P013_101.htm&mode=display 1/6

3/6/2018 licensing.fcc.gov/ibfsweb/ib.page.FetchForm?id_app_num=114146&form=P013_101.htm&mode=display existing station, enter: (a) Date pending application was filed: (b) File number of pending application: (a) Call sign of station: Not Applicable Not Applicable Not Applicable TYPE OF SERVICE 20. NATURE OF SERVICE: This filing is for an authorization to provide or use the following type(s) of service(s): Select all that apply: a. Fixed Satellite b. Mobile Satellite c. Radiodetermination Satellite d. Earth Exploration Satellite e. Direct to Home Fixed Satellite f. Digital Audio Radio Service g. Other (please specify) NGSO 21. STATUS: Choose the button next to the applicable status. 22. If earth station applicant, check all that apply. Choose only one. Using U.S. licensed satellites Common Carrier Non-Common Carrier Using Non-U.S. licensed satellites 23. If applicant is providng INTERNATIONAL COMMON CARRIER service, see instructions regarding Sec. 214 filings. Choose one. Are these facilities: Connected to a Public Switched Network Not connected to a Public Switched Network N/A 24. FREQUENCY BAND(S): Place an "X" in the box(es) next to all applicable frequency band(s). a. C-Band (4/6 GHz) b. Ku-Band (12/14 GHz) c.Other (Please specify upper and lower frequencies in MHz.) Frequency Lower: 401.24 Frequency Upper: 401.36 TYPE OF STATION 25. CLASS OF STATION: Choose the button next to the class of station that applies. Choose only one. a. Fixed Earth Station b. Temporary-Fixed Earth Station c. 12/14 GHz VSAT Network d. Mobile Earth Station (N/A) e. Geostationary Space Station (N/A) f. Non-Geostationary Space Station g. Other (please specify) 26. TYPE OF EARTH STATION FACILITY: Choose only one. Transmit/Receive Transmit-Only Receive-Only N/A PURPOSE OF MODIFICATION 27. The purpose of this proposed modification is to: (Place an 'X' in the box(es) next to all that apply.) Not Applicable ENVIRONMENTAL POLICY 28. Would a Commission grant of any proposal in this application or amendment have a significant environmental impact as defined by 47 CFR 1.1307? If YES, submit the statement as required by Sections Yes No 1.1308 and 1.1311 of the Commission's rules, 47 C.F.R. §§ 1.1308 and 1.1311, as an exhibit to this application.A Radiation Hazard Study must accompany all applications for new transmitting facilities, major modifications, or major amendments. ALIEN OWNERSHIP Earth station applicants not proposing to provide broadcast, common carrier, aeronautical en route or aeronautical fixed radio station services are not required to respond to Items 30-34. 29. Is the applicant a foreign government or the representative of any foreign government? Yes No 30. Is the applicant an alien or the representative of an alien? Yes No N/A 31. Is the applicant a corporation organized under the laws of any foreign government? Yes No N/A 32. Is the applicant a corporation of which more than one-fifth of the capital stock is owned of record or voted by aliens or their representatives or by a foreign government or representative thereof or by any Yes No N/A corporation organized under the laws of a foreign country? 33. Is the applicant a corporation directly or indirectly controlled by any other corporation of which more Yes No N/A than one-fourth of the capital stock is owned of record or voted by aliens, their representatives, or by a http://licensing.fcc.gov/ibfsweb/ib.page.FetchForm?id_app_num=114146&form=P013_101.htm&mode=display 2/6

3/6/2018 licensing.fcc.gov/ibfsweb/ib.page.FetchForm?id_app_num=114146&form=P013_101.htm&mode=display foreign government or representative thereof or by any corporation organized under the laws of a foreign country? 34. If any answer to questions 29, 30, 31, 32 and/or 33 is Yes, attach as an exhibit an identification of the aliens or foreign entities, their nationality, their relationship to the applicant, and the percentage of stock they own or vote. BASIC QUALIFICATIONS 35. Does the Applicant request any waivers or exemptions from any of the Commission's Rules? Yes No If Yes, attach as an exhibit, copies of the requests for waivers or exceptions with supporting documents. 36. Has the applicant or any party to this application or amendment had any FCC station authorization or license revoked or had any application for an initial, modification or renewal of FCC station authorization, Yes No license, or construction permit denied by the Commission? If Yes, attach as an exhibit, an explination of circumstances. 37. Has the applicant, or any party to this application or amendment, or any party directly or indirectly Yes No controlling the applicant ever been convicted of a felony by any state or federal court? If Yes, attach as an exhibit, an explination of circumstances. 38. Has any court finally adjudged the applicant, or any person directly or indirectly controlling the applicant, guilty of unlawfully monopolizing or attemptiing unlawfully to monopolize radio communication, Yes No directly or indirectly, through control of manufacture or sale of radio apparatus, exclusive traffic arrangement or any other means or unfair methods of competition?If Yes, attach as an exhibit, an explanation of circumstances 39. Is the applicant, or any person directly or indirectly controlling the applicant, currently a party in any Yes No pending matter referred to in the preceding two items? If yes, attach as an exhinit, an explanation of the circumstances. 40. If the applicant is a corporation and is applying for a space station license, attach as an exhibit the names, address, and citizenship of those stockholders owning a record and/or voting 10 percent or more of the Filer's voting stock and the percentages so held. In the case of fiduciary control, indicate the beneficiary(ies) or class of beneficiaries. Also list the names and addresses of the officers and directors of the Filer. 41. By checking Yes, the undersigned certifies, that neither 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 Act of 1988, 21 U.S.C. Section 862, because of a conviction for possession or distribution of a controlled Yes No substance. See 47 CFR 1.2002(b) for the meaning of "party to the application" for these purposes. 42a. Does the applicant intend to use a non-U.S. licensed satellite to provide service in the United States? If Yes No Yes, answer 42b and attach an exhibit providing the information specified in 47 C.F.R. 25.137, as appropriate. If No, proceed to question 43. 42b. What administration has licensed or is in the process of licensing the space station? If no license will be issued, what administration has coordinated or is in the process of coordinating the space station? 43. Description. (Summarize the nature of the application and the services to be provided). Draft Form to support 60-day STA request to provide TT&C for Analytical Space cubesat. 43a. Geographic Service Rule Certification By selecting A, the undersigned certifies that the applicant is not subject to the geographic service or A geographic coverage requirements specified in 47 C.F.R. Part 25. By selecting B, the undersigned certifies that the applicant is subject to the geographic service or geographic B coverage requirements specified in 47 C.F.R. Part 25 and will comply with such requirements. By selecting C, the undersigned certifies that the applicant is subject to the geographic service or geographic coverage requirements specified in 47 C.F.R. Part 25 and will not comply with such requirements because it is not feasible as a technical matter to do so, or that, while technically feasible, such services would require C so many compromises in satellite design and operation as to make it economically unreasonable. A narrative description and technical analysis demonstrating this claim are attached. CERTIFICATION The Applicant waives any claim to the use of any particular frequency or of the electromagnetic spectrum as against the regulatory power of the United States because of the previous use of the same, whether by license or otherwise, and requests an authorization in accordance with this application. The applicant certifies that grant of this application would not cause the applicant to be in violation of the spectrum aggregation limit in 47 CFR Part 20. All statements made in exhibits are a material part hereof and are incorporated herein as if set out in full in this application. The undersigned, individually and for the applicant, hereby certifies that all statements made in this application and in all attached exhibits are true, complete and correct to the best of his or her knowledge and belief, and are made in good faith. 44. Applicant is a (an): (Choose the button next to applicable response.) http://licensing.fcc.gov/ibfsweb/ib.page.FetchForm?id_app_num=114146&form=P013_101.htm&mode=display 3/6

3/6/2018 licensing.fcc.gov/ibfsweb/ib.page.FetchForm?id_app_num=114146&form=P013_101.htm&mode=display Individual Unincorporated Association Partnership Corporation Governmental Entity Other (please specify) LLC 45. Name of Person Signing 46. Title of Person Signing Christopher Richins CEO 47. Please supply any need attachments. Attachment 1: Attachment 2: Attachment 3: WILLFUL FALSE STATEMENTS MADE ON THIS FORM ARE PUNISHABLE BY FINE AND / OR IMPRISONMENT (U.S. Code, Title 18, Section 1001), AND/OR REVOCATION OF ANY STATION AUTHORIZATION (U.S. Code, Title 47, Section 312(a)(1)), AND/OR FORFEITURE (U.S. Code, Title 47, Section 503). SATELLITE EARTH STATION AUTHORIZATIONS FCC Form 312 - Schedule B:(Technical and Operational Description) FOR OFFICIAL USE ONLY Location of Earth Station Site E1: Site Identifier: UHF-Boulder E5. Call Sign: E2: Contact Name Zachary Reich E6. Phone Number: 415-622-5548 E3. Street: 6075 Prospect Road E7. City: Longmont E8. County: Boulder E4. State CO E9. Zip Code 80503 E10. Area of Operation: Boulder, CO E11. Latitude: 40 ° 8 ' 10.6 " N E12. Longitude: 105 ° 12 ' 47.0 " W E13. Lat/Lon Coordinates are: NAD-27 NAD-83 N/A E14. Site Elevation (AMSL): 15.0 meters E15. If the proposed antenna(s) operate in the Fixed Satellite Service (FSS) with geostationary satellites, do(es) the proposed antenna(s) comply with the antenna gain patterns specified in Section 25.209(a) and (b) as demonstrated by the manufacturer's qualification measurement? If NO, provide asa technical analysis showing Yes No N/A compliance with two-degree spacing policy. E16. If the proposed antenna(s) do not operate in the Fixed Satellite Service (FSS), or if they operate in the Fixed Satellite Service (FSS) with non-geostationary satellites, do(es) the proposed antenna(s) comply with the antenna gain patterns specified in Section 25.209(a2) and (b) as demonstrated by the manufacturer's Yes No N/A qualification measurements? E17. Is the facility operated by remote control? If YES, provide the location and telephone number of the control point. Yes No E18. Is frequency coordination required? If YES, attach a frequency coordination report Yes No as E19. Is coordination with another country required? If YES, attach the name of the country(ies) and plot of coordination contours as Yes No E20. FAA Notification - (See 47 CFR Part 17 and 47 CFR part 25.113(c)) Where FAA notification is required, have you attached a copy of a completed FCC Form 854 and or the FAA's study regarding the potential hazard of the structure to Yes No aviation? FAILURE TO COMPLY WITH 47 CFR PARTS 17 AND 25 WILL RESULT IN THE RETURN OF THIS APPLICATION. http://licensing.fcc.gov/ibfsweb/ib.page.FetchForm?id_app_num=114146&form=P013_101.htm&mode=display 4/6

3/6/2018 licensing.fcc.gov/ibfsweb/ib.page.FetchForm?id_app_num=114146&form=P013_101.htm&mode=display POINTS OF COMMUNICATION Satellite Name:OTHER | OTHER | If you selected OTHER, please enter the following: E21. Common Name: Radix E22. ITU Name: E23. Orbit Location: NGSO E24. Country: USA POINTS OF COMMUNICATION (Destination Points) E25. Site Identifier: UHF-Boulder E26. Common Name: E27. Country:USA ANTENNA E28. E32. E29. E30. E31. E41/42. Antenna GainTransmint Site ID Antenna Antenna Quantity Manufacturer Model and/or Recieve(____dBi at _____GHz) Id Size UHF- M2 Antenna YAGI-1 1 400CP30A 3.57 16.2 dBi at 0.400 Boulder Systems E40. E35. E36. E37. Building E38. Total E39. Maximum Total E28. Above Above Height Above Input Power Antenna E33/34. Diameter EIRP for Antenna Ground Sea Ground at antenna Height Above Minor/Major(meters) al Id Level Level Level flange Rooftop carriers (meters) (meters) (meters) (Watts) (meters) (dBW) YAGI-1 0.025/3.57 15.0 0.0 0.0 12.53 0.0 27.2 FREQUENCY E28. E43/44. E45. E47. E48. Maximum E49. Maximum ERIP E46. Antenna Antenna Frequency T/R Emission EIRP per Density per Polarization(H,V,L,R) Id Bands(MHz) Mode Designator Carrier(dBW) Carrier(dBW/4kHz) YAGI-1 401.24 401.36 R Right Hand Circular 114KG1D 0.0 0.0 E50. Modulation and Services TT&C Downlink YAGI-1 401.24 401.36 T Right Hand Circular 114KG1D 27.2 12.6 E50. Modulation and Services TT&C Uplink FREQUENCY COORDINATION E54/55. E56. E58. E57. E59. Range Earth Earth Antenna Antenna E60. Maximum E28. E52/53. of Station Station E51. Satellite Elevation Elevation EIRP Density Antenna Frequency Satellite Azimuth Azimuth Orbit Type Angle Angle toward the Id Limits(MHz) Arc Angle Angle Eastern Western Horizon(dBW/4kHz) E/W Eastern Western Limit Limit Limit Limit Limit Non- 401.24 YAGI-1 0.0/ 0.0 0.0 5.0 360.0 5.0 0.0 Geostationary 401.36 Non- 401.24 0.0/ 0.0 0.0 5.0 360.0 5.0 12.6 Geostationary 401.36 REMOTE CONTROL POINT LOCATION REMOTE CONTROL POINT LOCATION E61. Call Sign E65. Phone Number 650-746-8744 NOTE: Please enter the callsign of the controlling station, not the callsign for which this application is being filed. E62. Street Address 2205 152nd Street NE E63. City E67. County E64/68. E66. Zip Redmond King State/Country Code WA/ USA 98052 FCC NOTICE REQUIRED BY THE PAPERWORK REDUCTION ACT The public reporting for this collection of information is estimated to average 0.25 - 24 hours per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the http://licensing.fcc.gov/ibfsweb/ib.page.FetchForm?id_app_num=114146&form=P013_101.htm&mode=display 5/6

3/6/2018 licensing.fcc.gov/ibfsweb/ib.page.FetchForm?id_app_num=114146&form=P013_101.htm&mode=display required data, and completing and reviewing the collection of information. If you have any comments on this burden estimate, or how we can improve the collection and reduce the burden it causes you, please write to the Federal Communications Commission, AMD-PERM, Paperwork Reduction Project (3060-0678), Washington, DC 20554. We will also accept your comments regarding the Paperwork Reduction Act aspects of this collection via the Internet if you send them to PRA@fcc.gov. PLEASE DO NOT SEND COMPLETED FORMS TO THIS ADDRESS. Remember - You are not required to respond to a collection of information sponsored by the Federal government, and the government may not conduct or sponsor this collection, unless it displays a currently valid OMB control number or if we fail to provide you with this notice. This collection has been assigned an OMB control number of 3060-0678. THE FOREGOING NOTICE IS REQUIRED BY THE PAPERWORK REDUCTION ACT OF 1995, PUBLIC LAW 104-13, OCTOBER 1, 1995, 44 U.S.C. SECTION 3507. http://licensing.fcc.gov/ibfsweb/ib.page.FetchForm?id_app_num=114146&form=P013_101.htm&mode=display 6/6


Document Created: 2018-03-07 13:33:10
Document Modified: 2018-03-07 13:33:10
© 2024 FCC.report
This site is not affiliated with or endorsed by the FCC