Technical Appendix

1055-EX-ST-2019 Text Documents

Tyvak Nano-Satellite Systems Inc.,

2019-06-11ELS_231963

TECHNICAL APPENDIX Tyvak Nano-Satellite Systems Inc. 60-Day Special Temporary Authorization (STA) I. 400 MHz Yagi Radiation Hazard Report II. Nkom Email Authorization *Proprietary & Confidential*

I. 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 44.7 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, Rnf < 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 8.65 mW/cm2 Snf 16.0 η P/(πD2) Power Density in the Far-Field 0.14 mW/cm2 Sff GP/(4π Rff2) Power Density in the Transition Region 8.65 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 2.28 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 0.14 mW/cm2 Satisfies FCC MPE Near Field Calculation 8.65 mW/cm2 Exceeds Limits Transition Region 8.65 mW/cm2 Exceeds Limits Region b/w Antenna & Ground 2.28 mW/cm2 Exceeds Limits 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 antenna will be installed at DS12 Access Road, Prudhoe Bay, Alaska 99734. Access to the antenna requires a 45 ft man-lift, which should safely restrict any public access. It should be noted that all spaces at least 7.5m away from the antenna satisfy the FCC MPE limits for the general population. 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.

*Tyvak Proprietary* II. Nkom Email Authorization From: "Målen Frode" <frode.maalen@nkom.no> Sent: Fri, 21 Apr 2017 07:56:17 +0000 To: "BRMAIL, ITU" <BRMail@itu.int> Subject: Submission of Advance Publication Information for Satellite Network Tyvak-0082 Attachments: Tyvak-0082-API.zip Dear Sirs, With reference to Radio Regulations Article 9, no. 9.1, we are pleased to forward information on a Norwegian satellite network: Tyvak-0082 for Advanced Publication of Information in the BR IFIC. The network are not subject to coordination, cf. Article 9, Sub-Section IA. The Tyvak-0082 network is a n-GSO systems with 4 satellites in one orbital plane with 97,6° inclination. The validity is 20 years. The technical data for the network has been prepared in accordance with Radio Regulations Appendix 4, Annex 2. Enclosed please find the filing in the zipped format, prepared in the SpaceCap program. The operating agency for the networks is Orbital Networks A/S, Norway. In the API, clause A3a is given as 9999. Notification Form of the List of Recognized Operating Agencies (ROAs) for Orbital Networks AS will be sent in a separate e-mail. We kindly ask BR to initiate the relevant procedures under Article 9 of the Radio Regulations with regard to this network. If further clarification is necessary, we are pleased to be at your disposal. This E-mail has been confirmed by fax transmission to BR today. Best regards, Frode Målen Senior Engineer Section for Frequency Planning Norwegian Communications Authority Switchboard: + 47 22 82 46 00 Direct: + 47 22 82 46 04 Mobile: + 47 93 45 58 64 www.nkom.no

SpacePub Submission E_TSUM Requested by: RICKYP Date: 19.04.2017 10:20:01 AM DB: TYVAK-0082-API.MDB Plan Id.: Notice type: NONGEO A A1a Sat. Network TYVAK-0082 A1f1 Notifying adm. NOR A1f3 Inter. sat. org. BR1 Date of receipt 22.02.2017 BR20 BR IFIC no. BR6a/BR6b Id. no. 6 BR3a Provision reference 9.1/IA BR2 Adm. serial no. Résumé / Summary / Resumen Article 9, sous-section IA / Article 9, sub-section IA / Artículo 9, sub-sección IA 第9条第1A分节 / Статья 9, подраздел IA / ‫ القسم الفرعي‬،9 ‫ امﻻدة‬IA *Tyvak Proprietary* B1a B2 BR8 BR7a BR9 BR47 C4a Beam Emi-Rcp Action Group id. Action Frequency band (MHz) Class of station designation code code UHFRX R 12 401 - 401.3 EW SBANDTX E 10 2200 - 2202 ET, EW UHFTX E 9 401 - 401.3 ET XBANDTX E 11 8045 - 8059 EW Page / Página 1

*Tyvak Proprietary* E_TSUM Requested by: RICKYP Date: 19.04.2017 10:20:01 AM DB: TYVAK-0082-API.MDB Plan Id.: Notice type: NONGEO A A1a Sat. Network TYVAK-0082 A1f1 Notifying adm. NOR A1f3 Inter. sat. org. BR1 Date of receipt 22.02.2017 BR20 BR IFIC no. BR6a/BR6b Id. no. 6 BR3a Provision reference 9.1/IA BR2 Adm. serial no. UHFRX R A1f2 Submitted on behalf A4b1 No. of orbital planes 1 A4b2 Ref. body T A4b3a No. of space stations simult. trans. on Northern Hemisphere A4b3b No. of space stations simult. trans. on Southern Hemisphere Orbital A4b4a Inclination A4b4b No. of A4b4f Min. A4b4c Period A4b4d Apogee A4b4e Perigee plane id. no. angle satellites in this plane altitude 1 97.6 4 0-01:37 600e0 600e0 600 B1a/BR17 Beam designation UHFRX B1b Steerable B2 Emi-Rcp R B3a1 Max. co-polar gain 2 B2bis.a Transmit only when visible from notified service area B2bis.b Min. Elev. Angle B3c1 Co-polar antenna pattern Co-polar ref. pattern Coef. A Coef. B Co-polar rad. diag. ND-SPACE List of orbital planes 1 B4a3a1 Angle alpha B4a3a2 Angle beta BR92 Attach. for missing angle alpha/beta BR7a/BR7b Group id. 12 BR1 Date of receipt 22.02.2017 C2c RR No. 4.4 BR14 Special Section C4a Class of station EW C3a Assigned freq. band C5a Noise temperature 303 C4b Nature of service CR C6a Polarization type CL C6b Polarization angle C11a2 Service area NOR C11a3 Service area diagram A2b Period of valid. 20 A3a Op. agency 999 A3b Adm. resp. A BR16 Value of type C8b BR60 Regulatory deadline(s) 11.44/11.44.1 C1 Frequency Range C1a Lower limit C1b Upper limit 401 MHz 401.3 MHz C7a C8a1/C8b1 C8a2/C8b2 C8c1 C8c2 C8c3 C8c4 C8e1 C8e2 C8f2 Design. of emission Max. peak pwr Max. pwr dens. Min. peak pwr Attch. Min. pwr dens. Attch. C/N ratio Attch. E.i.r.p. on the beam axis 1 16K5G1D 22.6 -19.6 13 -29.2 84 C7b Carrier frequency of the emissions (16K5G1D) 404.04 MHz 401.08 MHz 401.12MHz 401.16 MHz 401.2 MHz 401.24 MHz C10b1 C10b2 C10c1 C10c2 C10d1/C10d2 C10d3 C10d4 Assoc. earth station id. Type Geographical coord. Ctry Cls. / Nat. Max. iso. Bmwdth gain ORBEX1 S 018E29 14 69N03 19 NOR 1 TW CR 16.2 25 C10d5a Co-polar antenna pattern C10b1 Assoc. earth station id. Co-polar ref. pattern Coef. A Coef. B Coef. C Coef. D Phi1 Co-polar rad. diag. ORBEX1 REC-580-6 13C Remarks Page / Página 2

*Tyvak Proprietary* B1a/BR17 Beam designation SBANDTX B1b Steerable B2 Emi-Rcp E B3a1 Max. co-polar gain 5 Page / Página 3

*Tyvak Proprietary* E_TSUM Requested by: RICKYP Date: 19.04.2017 10:20:01 AM DB: TYVAK-0082-API.MDB Plan Id.: Notice type: NONGEO A A1a Sat. Network TYVAK-0082 A1f1 Notifying adm. NOR A1f3 Inter. sat. org. BR1 Date of receipt 22.02.2017 BR20 BR IFIC no. BR6a/BR6b Id. no. 6 BR3a Provision reference 9.1/IA BR2 Adm. serial no. SBANDTX E B2bis.a Transmit only when visible from notified service area Y B2bis.b Min. Elev. Angle 10 B3c1 Co-polar antenna pattern Co-polar ref. pattern Coef. A Coef. B Co-polar rad. diag. ND-SPACE B4a3a1 Angle alpha B4a3a2 Angle beta BR92 Attach. for missing angle alpha/beta BR7a/BR7b Group id. 10 BR1 Date of receipt 22.02.2017 C2c RR No. 4.4 BR14 Special Section C4a Class of station ET EW C3a Assigned freq. band C4b Nature of service CR CR C6a Polarization type CL C6b Polarization angle C8d1 Max. tot. peak pwr. C8d2 Contiguous bandwidth C11a2 Service area XVE C11a3 Service area diagram A2b Period of valid. 20 A3a Op. agency 999 A3b Adm. resp. A BR16 Value of type C8b BR60 Regulatory deadline(s) 11.44/11.44.1 C1 Frequency Range C1a Lower limit C1b Upper limit 2200 MHz 2202 MHz C7a C8a1/C8b1 C8a2/C8b2 C8c1 C8c2 C8c3 C8c4 C8e1 C8e2 C8f1 Design. of emission Max. peak pwr Max. pwr dens. Min. peak pwr Attch. Min. pwr dens. Attch. C/N ratio Attch. E.i.r.p. on the beam axis 1 1M50G1D 3 -58 -3 -64 80 3 C7b Carrier frequency of the emissions (1M50G1D) 2201 MHz C10b1 C10b2 C10c1 C10c2 C10d1/C10d2 C10d3 C10d4 C10d6 Assoc. earth station id. Type Geographical coord. Ctry Cls. / Nat. Max. iso. Bmwdth Noise gain temp. ORBOPEX T 1 TT CR 40 1.6 150 2 TW C10d5a Co-polar antenna pattern C10b1 Assoc. earth station id. Co-polar ref. pattern Coef. A Coef. B Coef. C Coef. D Phi1 Co-polar rad. diag. ORBOPEX REC-580-6 13C Remarks B1a/BR17 Beam designation UHFTX B1b Steerable B2 Emi-Rcp E B3a1 Max. co-polar gain 2 B2bis.a Transmit only when visible from notified service area Y B2bis.b Min. Elev. Angle 10 B3c1 Co-polar antenna pattern Co-polar ref. pattern Coef. A Coef. B Co-polar rad. diag. ND-SPACE B4a3a1 Angle alpha B4a3a2 Angle beta BR92 Attach. for missing angle alpha/beta Page / Página 4

*Tyvak Proprietary* E_TSUM Requested by: RICKYP Date: 19.04.2017 10:20:01 AM DB: TYVAK-0082-API.MDB Plan Id.: Notice type: NONGEO A A1a Sat. Network TYVAK-0082 A1f1 Notifying adm. NOR A1f3 Inter. sat. org. BR1 Date of receipt 22.02.2017 BR20 BR IFIC no. BR6a/BR6b Id. no. 6 BR3a Provision reference 9.1/IA BR2 Adm. serial no. UHFTX E BR7a/BR7b Group id. 9 BR1 Date of receipt 22.02.2017 C2c RR No. 4.4 BR14 Special Section C4a Class of station ET C3a Assigned freq. band C4b Nature of service CR C6a Polarization type CL C6b Polarization angle C8d1 Max. tot. peak pwr. C8d2 Contiguous bandwidth C11a2 Service area NOR C11a3 Service area diagram A2b Period of valid. 20 A3a Op. agency 999 A3b Adm. resp. A BR16 Value of type C8b BR60 Regulatory deadline(s) 11.44/11.44.1 C1 Frequency Range C1a Lower limit C1b Upper limit 401 MHz 401.3 MHz C7a C8a1/C8b1 C8a2/C8b2 C8c1 C8c2 C8c3 C8c4 C8e1 C8e2 C8f1 Design. of emission Max. peak pwr Max. pwr dens. Min. peak pwr Attch. Min. pwr dens. Attch. C/N ratio Attch. E.i.r.p. on the beam axis 1 16K5G1D 3 -39.2 0.5 -41.7 57 3 C7b Carrier frequency of the emissions (16K5G1D) 401.04 MHz 401.08 MHz 402.12 MHz 401.16 MHz 401.2 MHz 401.24 MHz C10b1 C10b2 C10c1 C10c2 C10d1/C10d2 C10d3 C10d4 C10d6 Assoc. earth station id. Type Geographical coord. Ctry Cls. / Nat. Max. iso. Bmwdth Noise gain temp. ORBOP S 018E29 14 69N03 19 NOR 1 TT CR 30 5 150 C10d5a Co-polar antenna pattern C10b1 Assoc. earth station id. Co-polar ref. pattern Coef. A Coef. B Coef. C Coef. D Phi1 Co-polar rad. diag. ORBOP REC-580-6 13C Remarks B1a/BR17 Beam designation XBANDTX B1b Steerable B2 Emi-Rcp E B3a1 Max. co-polar gain 8 B2bis.a Transmit only when visible from notified service area Y B2bis.b Min. Elev. Angle 10 B3c1 Co-polar antenna pattern Co-polar ref. pattern Coef. A Coef. B Co-polar rad. diag. ND-SPACE B4a3a1 Angle alpha B4a3a2 Angle beta BR92 Attach. for missing angle alpha/beta BR7a/BR7b Group id. 11 BR1 Date of receipt 22.02.2017 C2c RR No. 4.4 BR14 Special Section C4a Class of station EW C3a Assigned freq. band C4b Nature of service CR C6a Polarization type CL C6b Polarization angle C8d1 Max. tot. peak pwr. C8d2 Contiguous bandwidth C11a2 Service area XVE Page / Página 5

*Tyvak Proprietary* A2b Period of valid. C11a3 Service area diagram 20 A3a Op. agency 999 A3b Adm. resp. A BR16 Value of type C8b Page / Página 6

*Tyvak Proprietary* E_TSUM Requested by: RICKYP Date: 19.04.2017 10:20:01 AM DB: TYVAK-0082-API.MDB Plan Id.: Notice type: NONGEO A A1a Sat. Network TYVAK-0082 A1f1 Notifying adm. NOR A1f3 Inter. sat. org. BR1 Date of receipt 22.02.2017 BR20 BR IFIC no. BR6a/BR6b Id. no. 6 BR3a Provision reference 9.1/IA BR2 Adm. serial no. XBANDTX E BR60 Regulatory deadline(s) 11.44/11.44.1 C1 Frequency Range C1a Lower limit C1b Upper limit 8045 MHz 8059 MHz C7a C8a1/C8b1 C8a2/C8b2 C8c1 C8c2 C8c3 C8c4 C8e1 C8e2 C8f1 Design. of emission Max. peak pwr Max. pwr dens. Min. peak pwr Attch. Min. pwr dens. Attch. C/N ratio Attch. E.i.r.p. on the beam axis 1 1M72G1D -3 -65.4 -3.5 -65.9 90 3 C7b Carrier frequency of the emissions (1M72G1D) 8046 MHz 8050 MHz 8054 MHz 8058 MHz C10b1 C10b2 C10c1 C10c2 C10d1/C10d2 C10d3 C10d4 C10d6 Assoc. earth station id. Type Geographical coord. Ctry Cls. / Nat. Max. iso. Bmwdth Noise gain temp. ORBEX2 T 1 TW CR 50 0.5 150 C10d5a Co-polar antenna pattern C10b1 Assoc. earth station id. Co-polar ref. pattern Coef. A Coef. B Coef. C Coef. D Phi1 Co-polar rad. diag. ORBEX2 REC-580-6 13C Remarks C9 Modulation characteristics C7a Designation of emission 16K5G1D C9a1 Type of modulation PSK C9a2a Lowest frequency C9a2b Highest frequency C9a2c Frequency deviation C9a3a Freq. deviation of the pre-emphasized signal C9a3b Pre-emphasis characteristics C9a3c Type of multiplexing C9a4a Bit rate C9a4b Number of phases C9a5a Modulating signal attached (see attch. no.) C9a5b Amplitude modulation C9a6a Peak-to-peak freq. dev. C9a6b Sweep frequency C9a6c Energy dispersal waveform C9a7 Type of energy dispersal C9a8 Other types of modulation (see attch. no.) C9a9 TV standard BR7a Group id. 9, 12 Page / Página 7

*Tyvak Proprietary* E_TSUM Requested by: RICKYP Date: 19.04.2017 10:20:01 AM DB: TYVAK-0082-API.MDB Plan Id.: Notice type: NONGEO A A1a Sat. Network TYVAK-0082 A1f1 Notifying adm. NOR A1f3 Inter. sat. org. BR1 Date of receipt 22.02.2017 BR20 BR IFIC no. BR6a/BR6b Id. no. 6 BR3a Provision reference 9.1/IA BR2 Adm. serial no. XBANDTX E C9 Modulation characteristics C7a Designation of emission 1M50G1D C9a1 Type of modulation PSK C9a2a Lowest frequency C9a2b Highest frequency C9a2c Frequency deviation C9a3a Freq. deviation of the pre-emphasized signal C9a3b Pre-emphasis characteristics C9a3c Type of multiplexing C9a4a Bit rate C9a4b Number of phases C9a5a Modulating signal attached (see attch. no.) C9a5b Amplitude modulation C9a6a Peak-to-peak freq. dev. C9a6b Sweep frequency C9a6c Energy dispersal waveform C9a7 Type of energy dispersal C9a8 Other types of modulation (see attch. no.) C9a9 TV standard BR7a Group id. 10 C9 Modulation characteristics C7a Designation of emission 1M72G1D C9a1 Type of modulation PSK C9a2a Lowest frequency C9a2b Highest frequency C9a2c Frequency deviation C9a3a Freq. deviation of the pre-emphasized signal C9a3b Pre-emphasis characteristics C9a3c Type of multiplexing C9a4a Bit rate C9a4b Number of phases C9a5a Modulating signal attached (see attch. no.) C9a5b Amplitude modulation C9a6a Peak-to-peak freq. dev. C9a6b Sweep frequency C9a6c Energy dispersal waveform C9a7 Type of energy dispersal C9a8 Other types of modulation (see attch. no.) C9a9 TV standard BR7a Group id. 11 BR22 Administration remarks BR23 Radiocommunication Bureau comments Page / Página 6


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