Exhibit 2 Technical Information

0469-EX-CN-2017 Text Documents

University of North Carolina at Wilmington Center for Marine Science

2017-06-13ELS_193592

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 SeaHawk-1 and SeaHawk-2 Technical Information Table of Contents Page Ownership, Operations and Construction 2 Orbital Requirements 2 Service Area 3 Satellite Payload 3 Principle Specifications 4 Telemetry, Tracking and Command 4 Radio Equipment 5 RF Table 7 Power Flux Density Calculation 8 Interference Analysis 9 SeaHawk Satellite Link Budgets 10 Antenna Patterns and Beam Contours 15 A 24-hour contact for interference issues 18 List of Tables Table 1 SeaHawk-1 Orbital Parameters 2 Table 2 SeaHawk-2 Orbital Parameters 3 Table 3 Satellite Payload Bandwidth 3 Table 4 Antenna Frequency Registration 6 Table 5 Frequency Emissions Registration 6 Table 6 RF Table 7 Table 7 SeaHawk-1 Link Budget 11 Table 8 VHF Up Link Budget: 140 - 150 Mhz 12 Table 9 UHF Link Budget - Downlink: 400 - 440 Mhz 13 Table 10 X-Band Down Link Budget - 8100 Mhz 14 List of Figures Figure 1 HawkEye Ocean Color Scanner 4 Figure 2 Location of the Spacecraft Antennas 4 Figure 3 X-Band Power Flux Density on Earth 8 Figure 4 VHF/UHF Antenna Beam Contours & Beam Patterns 15 Figure 5 UHF transmit pattern 16 Figure 6 X-Band Radiation Pattern 17 Figure 7 X-Band Antenna Gain 17 EXHIBIT 2 PAGE 1 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 1. Ownership, Operations and Construction. The University of North Carolina at Wilmington Center for Marine Science (“UNCW/CMS”) is the owner and operator of the SeaHawk satellites. UNCW/CMS has selected Clyde Space Ltd., headquartered in Glasgow, Scotland as the manufacturer of the satellites and Spaceflight Industries of Seattle, Washington as the launch provider. SeaHawk-1 is expected to be launched on a SpaceX Falcon 9 launch vehicle from Vandenberg, AFB in California (geographic coordinates 34.5762°N; 4.2803°W) in the 1st Quarter of 2018. The estimated launch date for SeaHawk-2 is in the 1st Quarter of 2019. Pursuant to Part 5 §5.64 of the Commission’s Rules, construction of the proposed experimental satellites and associated facilities will begin prior to the Commission’s grant of an authorization. This is necessary given the nature of satellite construction and technical requirements over long lead times. Such construction is entirely at UNCW/CMS’ risk without any assurances that its proposed experiment will be subsequently approved. • Space Station Name: SeaHawk-1 and SeaHawk-2 • SeaHawk-1 Estimated Construction Completion Date: September 2017 • Spaceflight Final Certification of Licenses (Go/NoGo): October, 2017 • Estimated Launch Date for SeaHawk-1: 1st Quarter 2018 • Purpose: Experimental, non-Common Carrier basis • Orbital Type: NGSO 2. Orbital Requirements. The satellites are designed to operate in circular sun- synchronous orbits. The satellites are based on COTS technology that allows for small, lightweight and low-cost spacecraft. SeaHawk-1 Total Number of Orbital Planes: 1 Celestial Reference Body: Earth Inclination Angle (degrees): 97.7 Orbital Period (seconds) 5778 Apogee 575 km Perigee 575 km Table 1 EXHIBIT 2 PAGE 2 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 SeaHawk-2 (estimated launch date 1Q2019) Total Number of Orbital Planes: 1 Celestial Reference Body: Earth Inclination Angle (degrees): 97.5 Orbital Period (seconds) 5718 Apogee 525 km Perigee 525 km Table 2 3. Service Area: United States 4. Satellite Payload. For the SeaHawk satellite mission (Sustained Ocean Color Observations with Nanosatellites (“SOCON”), each of the 2 SeaHawk CubeSats will be outfitted with a low-cost, multispectral, ocean color sensor with spatial characteristics comparable to SeaWiFS capable of collection of near-synoptic color data in open- ocean to coastal-margin to near-shore terrestrial environment. UNCW/CMS has consulted with NOAA on the SOCON mission and after NOAA approval of a draft application, has submitted a license application which is currently under review. An Orbital Debris Assessment Report (“ODAR”) has also been submitted with the NOAA application. The sensor has the capability of collection of the 8 SeaWiFS bands and designed with form factor fit into a custom 3U (i.e., 3 Units or 10cm3 or 10x10x30 cm) CubeSat; have spatial resolution of approximately 120 km and swath of 230 km in a 575 km LEO orbit. The Hawkeye sensors are designed to measure ocean, lake and river reflectivities in 8 spectral bands with high signal to noise ratio, 149 to 487 (.032 to .098 of SeaWifs), at typical radiances. The 8 bands follow SeaWiFS heritage with the center wavelength and bandwidths provided in the table below: 1. Band Wavelength Bandwidth in nm in nm SeaWiFS 1 412 20 SeaWiFS 2 443 20 SeaWiFS 3 490 20 SeaWiFS 4 510 20 SeaWiFS 5 555 20 SeaWiFS 6 670 20 New 7 750.9 14.7 SeaWiFS 8 865 40 Table 3 EXHIBIT 2 PAGE 3 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 The HawkEye Ocean Color Camera is approximate 10x10x10 cm with a mass of approximately 900 grams with 4 linear array CCDs in individual packages, one for each two bands. A picture of the completed sensor is presented in Figure 1. Figure 1. HawkEye Ocean Color Scanner 5. Principle Specifications. The UNCW/CMS SeaHawk satellites are identical. Each CubeSat measures 10 cm x 10 cm x 34 cm with a total mass of less than 4.8 kg. It has 4 double sided deployable solar panels, two 3U deployable panels and two 2U deployable panels that generate approximately 22 watts of power in sunlight. The Standalone 40Wh Battery consists of two lithium polymer pouch cells in a 2s3p arrangement with a typical capacity of 3900mAhr at a nominal 7.6V (full battery operational voltage range from 6.0 - 8.4V). The X-Band patch antenna is located in the long side of the satellite body (picture below). Two UHF and two VHF monopole whip antennas are deployed from the ADM (Antenna Deployment Module). The spacecraft has an estimated design lifetime of 18 months at a nominal orbit altitude of 575 km. Figure 2. Location of the Spacecraft Antennas 6. Telemetry, Tracking and Command. Under the direction and control of UNCW/CMS, the UNCW/CMS satellites will receive TT&C communications from a gateway earth station located at Clyde Space in Glasgow, Scotland using the uplink band of 140-150 MHz licensed by Ofcom. UNCW/CMS commands will be communicated to the TT&C from the mission operations center in Wilmington, North Carolina, and then uplinked to the satellites. The EXHIBIT 2 PAGE 4 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 satellites will transmit TT&C data to the earth station using the downlink band of 400-440 MHz. The science data collected by the satellites’ ocean color sensor, will be downlinked via the X-Band 8100 MHz frequency to NASA’s Near Earth Network (“NEN”). The primary receiver for the SOCON data will be Wallops Flight Facility Ground Station in Virginia. There are three NASA NEN secondary receivers for the SOCON data in Fairbanks, Alaska and a backup receiver located at NASA NEN in McMurdo, Antarctica. 7. Radio Equipment. UHF/VHF Transceiver: F’SATI VUTRX CubeSat Radio: UHF downlink, VHF uplink • Primary transceiver capability for telecommand, telemetry, and redundant payload data, uses an off-the-shelf VUTRX (UV Transceiver), providing a UHF uplink and VHF downlink both using 9600 bit/s GMSK using CCSDS packets. • When not transmitting, the transceiver shall operate in a Morse code beacon mode for broadcasting identification and basic health data for tracking. • The VUTRX interfaces to UV monopole whip antennas deployed from the ADM (Antenna Deployment Module). Downlink: UHF Transmit • DC Power 4 – 10 W (27 – 33 dBm) • Frequency 400 - 440 MHz RF • Power 27 – 33 dBm (3 dBm steps) • Channel Spacing 25 kHz • Spurious Response < -65 dBc F • Frequency Deviation 3 kHz (FM) • Frequency Stability ± 50 ppm Uplink: VHF Receive • DC Power < 250 mW • Frequency 140 – 150 MHz • -120 dBm for 12 dB SINAD • Channel Spacing 25 kHz • Noise Figure < 1.5 dB • Spurious Responses < -65 dB • Dynamic Range -120 dBm to -70 dBm • Frequency Stability ± 50 ppm X-Band Transmitter: Syrlinks EWC27 X-BAND Transmitter RF transmitting power: 2W (33 dBm) • Secondary transmitter capability for high-resolution science data including payload data and mission housekeeping data, providing a X-band downlink EXHIBIT 2 PAGE 5 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 using 100Mbps air data rate (after convolutional coding), OQPSK modulation and CCSDS packets. • The transmitter will be switched on according to the on-board schedule to match a ground station pass. Downlink: X-Band Transmit • Transmit Frequency: 8100 MHz • Bandwidth: 90 Mhz • Flexible RF Output Power: 27 – 22 dBm, with 1-dB steps • Power Consumption: o < 7 W for 1 W RF Output Power o < 10 W for 2 W RF Output Power • Useful data rate from 2.8 to 50 Mbps with Variable Bit Rate (up to 100 Mbps in Constant Bit Rate) • Configurable data rate (in flight up to 50 Mbps Antenna Systems • Clyde Space VHF/UHF; Model 01-02766 Antenna Deployment Module • PCL Model PCL-MSA-74-12-1 X-band Patch Antenna Lower Upper Frequency Power Output ERP Frequency Station Power Mean/Peak Frequency Frequency Units Units Power/ERP Units Tolerance Class 8100 8100 MHz 2.0W W 33 dBm 32/33 +/-5 ppm Mobile 400 440 MHz 0.5W W 27 dBm 27/33 +/-2.7 ppm Mobile Table 4 Antenna Frequency Registration Lower Upper Frequency Modulating Emission Necessary Bandwidth Frequency Frequency Units Signal 8100 8100 MHz G 1 D OQPSK 90M0 400 440 MHz G 1 D GMSK 15K4 Table 5 Frequency Emissions Registration EXHIBIT 2 PAGE 6 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 8. RF Table Table 6 EXHIBIT 2 PAGE 7 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 9. Power Flux Density Calculation Figure 3 PDF at the Surface of the Earth produced by SeaHawk satellite Downlinks Shown for 575 km orbit (a) Power Flux Density at the Surface of the Earth for the 8100 MHz Frequency ITU-R Recommendation SA-1157 specifies a maximum allowable interference power spectral flux-density level at the Earth’s surface of -255.1 dB(W/(m2·Hz)) to protect ground receivers in the deep-space research band 8400-8450 MHz. The SeaHawk satellites do not operate in this frequency range, so no special precautions are warranted. (b) Power Flux Density at the Geostationary Satellite Orbit No. 22.5 of the ITU Radio Regulations specifies that in the frequency band 8025-8400 MHz, which the EESS (using non-geostationary satellites) shares with the fixed-satellite service EXHIBIT 2 PAGE 8 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 (Earth-to-space) and the meteorological-satellite service (Earth-to-space), the maximum PFD produced at the geostationary satellite orbit (“GSO”) by any EESS space station shall not exceed –174 dB(W/m2) in any 4-kHz band. The calculation below shows that the PFD produced by the transmissions from the proposed SeaHawk satellites does not exceed the limit in No. 22.5, even in the worst possible hypothetical case. The PFD at the GSO produced by the SeaHawk satellite transmission is: PFD [dBW/m2 /4 kHz] = EIRP (dBW) - 71 - 20log10(D) - 10log10(BW) – 24 Where: • EIRP is the Maximum EIRP of the transmission, in dBW; • D is distance between the UNCW/CMS satellite and GSO, in km; • BW is the symbol bandwidth of the transmission, in MHz. The minimum possible distance between a SeaHawk satellite and the GSO is 35,786 - 575 = 35,211 km for the highest possible SeaHawk satellite orbit of 575 km. Under a hypothetical assumption that the SeaHawk satellite antenna is radiating at its peak EIRP toward the GSO, the X-Band transmission with the peak EIRP = 9.35 dBW and BW = 90 MHz produces a PFD at the GSO of -196.122 dBW/m2/4 kHz. 10. Interference Analysis 8100 MHz (Primary Data Downlink) The 8025-8400 MHz band is allocated for a number of uses including non-Federal use for EESS (Earth-to-space) subject to such conditions as may be applied on a case-by-case basis. Further, transmissions from the satellites operating in this band shall not cause harmful interference to Federal and non-Federal stations operating in accordance with the U.S. Table of Frequency Allocations. UNCW/CMS will coordinate with Federal and non-Federal operators in this band to ensure compliance with this requirement. UNCW/CMS has taken time to understand and include mitigation techniques outlined in the ECC Report 155, for operating its satellite downlink in the 8100 MHz frequency. Below are the key steps taken to minimize risk of interference. • UNCW/CMS satellites operate in a non-broadcast mode, only radiating when transmitting data to one or more of the NASA NEN ground stations. The transmitter will be switched on according to the on-board schedule in order to match a ground station pass. • UNCW/CMS satellites operate in the lower portion of the 8025 – 8400 MHz band. • UNCW/CMS satellites operate well within the power flux density requirements. EXHIBIT 2 PAGE 9 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 • UNCW/CMS has initially been performing pre-flight with the NASA NEN. When SeaHawk is on orbit we will schedule test contacts with each of the NASA NEN stations and apertures to perform “on orbit certification” in lieu of a pre-launch compatibility test. Once the NEN has certified/demonstrated their ability to successfully receive our signal and have accurately configured the grounds station, we will enter an operational phase. • The Syrlinks X-Band Transmitter is in conformance with the NTIA and ITU-R PFD limits and in conformance with the DSN protection criteria – clearing the 8100 MHz frequency for potential use for this mission. (a) Interference between EESS systems operating in the band 8025-8400 MHz Interference between the SeaHawk satellites and those of other systems is unlikely because EESS systems operating in the 8025-8400 MHz band normally transmit only in short periods of time while visible from the dedicated receiving earth stations (typically less than 10 minutes for a single pass). SeaHawk satellites are designed to be non-broadcast satellites. For interference to happen, satellites belonging to different systems would have to travel through the antenna beam of the receiving earth station and transmit at the same time and at same frequency. In such a very unlikely event, interference can be still be avoided by coordinating the satellite transmissions so that they do not occur simultaneously. (b) Interference with the Fixed Service and the FSS in the band 8025-8400 MHz SeaHawk satellite transmissions will meet the limits specified by the ITU for protection of the Fixed Service in the 8025-8400 MHz band, as well as the geostationary FSS satellites using this band for their uplinks. See Section 9(b) above. 400-440 MHz (TT&C Downlink) Interference with U.S. federal and amateur assignments in the 400-440 MHz band is unlikely as they will only be transmitting when over the associated TT&C ground station in Glasgow, Scotland. When not transmitting, the transceiver shall operate in a Morse code beacon mode for broadcasting identification and basic health data for tracking. A 24-hour contact for interference issues is provided in Section 13 below. 11. SeaHawk Satellite Link Budgets. The coverage area diameter from an altitude of 575 km is approximately 5,000 km. Each satellite will pass over the U.S. about 4 times a day for approximately 7 minutes. The satellite transmitters are only active while communicating with user terminals. Following are the SeaHawk Satellite Link budgets. EXHIBIT 2 PAGE 10 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 Seahawk -1 Link Budget Property Uplink 1 Downlink 1 Downlink 5 Comments Mission Geometry Altitude (km) 575 575 575 Launch Orbit Earth Radius[km] 6378.0 6378.0 6378.0 Angular radius of the Earth [deg] 66.52 66.52 66.52 Orbit inclination [deg] 97.70 97.70 97.70 Orbital Period [min] 96.30 96.30 96.30 General Central Frequency (MHz) 149.15 400.775 8100 UL1: VHF, DL1: UHF, DL5: X-band Transmitter Bandwidth(Mhz) 0.0154 0.0154 90 On Air Bit Rate (Mbit/sec) 0.0096 0.0096 100 Downlink 5 sym rate 50 due to Platform Tx Platform Tx Power (W) 0.5 1.6 Spacecraft antenna pointing loss [dB] 0.5 0.5 0.5 Total feedline loss of 1.5dB SC Transmission line loss [dB] 0.5 0.5 0.5 Total feedline loss of 1.5dB Impedance Mismatch loss [dB] 0.5 0.5 0.5 Total feedline loss of 1.5dB Antenna pattern ID 1 2 3 Antenna pattern: Elevation/Nadir angel/Gain NA G NA G NA G UL1-DL1 use omnidirectional antennas - DL5-HPBW 40 deg half angle 0 67 0 67 0 67 -0.2 10 65 0 65 0 65 0.3 20 60 0 60 0 60 1.6 30 53 0 53 0 53 3 40 45 0 45 0 45 4.3 50 36 0 36 0 36 4.9 60 27 0 27 0 27 5.4 70 18 0 18 0 18 6.1 80 9 0 9 0 9 6.7 90 0 0 0 0 0 7.3 Peak gain DL5 7.3, UL1/DL1 use omnidir Platform Rx ant Rec Min dynamic range/Rec sensitivity [dBW] -144 Receiver Max dynamic range [dBW] -100 Path Polarisation loss [dB] CP-LP Matched Matched Matched 0dB loss, Mismatched 3dB loss. Atmospheric attenuation [dB/km] 0.007 0.007 0.013 Groundstation Tx + Rx Tx Power Ground Station (W) 200 Pointing Accuracy 1 1 0.05 Antenna 52 30 0.23 Antenna Gain[dB] 10.2 [OPTIONAL] [OPTIONAL] for DL captured in G/T figure GS Trans line loss[dB] sky noise[K] [OPTIONAL] [OPTIONAL] for DL captured in G/T figure rec noise[K] [OPTIONAL] [OPTIONAL] for DL captured in G/T figure interf noise[K] [OPTIONAL] [OPTIONAL] for DL captured in G/T figure Total System Effective Noise Temp[K] [OPTIONAL] [OPTIONAL] for DL captured in G/T figure GroundstationG/T [dB/K] -2.31 34.5 Receiver bandwidth to Signal bandwidth ratio 1.5 1.5 Receiver Bandwidth(Mhz) 0.0231 135 (continued on next page) EXHIBIT 2 PAGE 11 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 Link Evaluation Modulation Type GMSK GMSK QPSK For DL5 OQPSK-doesn’t affect overhead Convolutional Coding implemented Yes Yes Convolutional Coding code rate 0.50 0.50 Reed-Solomon Implemented Yes Yes Reed-Solomon code rate 0.87 0.87 Reed Solomon Interleaving Depth 4 4 CFDP Implemented Yes Yes Yes Ax.25 implemented Yes Desired FER 1.00E-07 1.00E-07 Req Eb/No Threshold to meet desired FER [dB] 2.7 2.7 Implementation loss [dB] 1 1 Desired Link Margin 3.0 3.0 3.0 Table 7 VHF Up Link Budget: 140 - 150 Mhz Mission Geometry Units Elevation deg 0 10 20 30 40 50 60 70 80 90 Pho 66.5 deg Nadir angle deg 67 65 60 53 45 36 27 18 9 0 Slant Range km 2769 1874 1343 1034 847 730 655 609 583 575 Groundstation Tx Transmission power dBW 23.0 GS transmission line loss dB 4.0 Gs Antenna gain dBi 10.2 Effective Isotropic Related Power dBW 29.2 29.2 29.2 29.2 29.2 29.2 29.2 29.2 29.2 29.2 Path Groundstation pointing loss dB 0.0 Path loss dB 144.8 141.4 138.5 136.2 134.5 133.2 132.2 131.6 131.2 131.1 Polarisation matching loss dB 3.0 Received power at receiver dB 7.93 3.34 1.94 1.37 1.08 0.91 0.81 0.74 0.71 0.70 Platform Rx Received power at Platform antenna dBW -126.49 -118.51 -114.21 -111.37 -109.35 -107.88 -106.84 -106.14 -105.73 -105.60 Platform antenna pointing loss dB 0.50 Platform Antenna gain dB 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 SC Transmission line loss dB 0.50 Mismatch loss dB 0.50 Received power at receiver dBW -128 -120 -116 -113 -111 -109 -108 -108 -107 -107 Link evaluation Receiver Lower limit dynamic range (Receiver dBW -144 -144 -144 -144 -144 -144 -144 -144 -144 -144 sensitivity) Receiver Upper limit of dynamic range (Max dBW -100 -100 -100 -100 -100 -100 -100 -100 -100 -100 receiver input) Link Margin lower limit dB 16 24 28 31 33 35 36 36 37 37 Link Margin upper limit dB 28 20 16 13 11 9 8 8 7 7 Table 8 EXHIBIT 2 PAGE 12 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 UHF Link Budget - Downlink: 400 - 440 Mhz Mission geometry Units Elevation deg 0 10 20 30 40 50 60 70 80 90 Rho deg ---- 66.5 Nadir angle deg 67 65 60 53 45 36 27 18 9 0 Slant range km 2769 1874 1343 1034 847 730 655 609 583 575 Satellite Tx Transmission power dBW -3.0 SC Transmission line loss dB 0.5 Mismatch loss dB 0.5 Antenna gain dBi 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Effective Isotropic Radiated Power dBW -4.0 -4.0 -4.0 -4.0 -4.0 -4.0 -4.0 -4.0 -4.0 -4.0 Path Spacecrafe antenna pointing loss dB 0.5 Path loss dB 153.3 150.0 147.1 144.8 143.1 141.8 140.8 140.2 139.8 139.7 Polarisation matching loss dB 0.0 Atmospheric Attenuation dB 7.9 3.3 1.9 1.4 1.1 0.9 0.8 0.7 0.7 0.7 Groundstation Rx Received power ground station antenna dBW -165.79 -157.81 -153.51 -150.67 -148.65 -147.18 -146.14 -145.44 -145.04 -144.90 G/S antenna pointing loss dB 0.01 Boltzman's Constant dBW/K/Hz -228.60 Groundstation Figure of merit (G/T) dB/K -2.31 C/No at Rx input dBHz 60.49 68.47 72.76 75.61 77.63 79.09 80.14 80.84 81.24 81.37 Eb/N0 dB 24.28 32.26 36.55 39.39 41.42 42.88 43.92 44.62 45.03 45.16 C/N dB 18.61 26.60 30.89 33.73 35.75 37.22 38.26 38.96 39.37 39.50 SNR dB 16.87 24.85 29.15 31.99 34.01 35.47 36.52 37.22 37.62 37.75 Illumination level dBW/m2 -143.85 -140.46 -137.56 -135.29 -133.56 -132.27 -131.33 -130.69 -130.32 -130.20 PFSD dBW/m2/Hz -185.72 -182.33 -179.44 -177.17 -175.44 -174.14 -173.20 -172.56 -172.19 -172.07 PFSD dBW/m2/4kHz -149.70 -146.31 -143.42 -141.15 -139.42 -138.12 -137.18 -136.54 -136.17 -136.05 Link Evaluation Link Margin for Eb/N0 desired WER/FER dB 20.58 28.56 32.85 35.69 37.72 39.18 40.22 40.92 41.33 41.46 Shannon limit Mbps 0.087 0.127 0.149 0.164 0.174 0.181 0.187 0.190 0.192 0.193 Table 9 EXHIBIT 2 PAGE 13 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 X-Band Down Link Budget - 8100 Mhz Mission geometry Units Elevation deg 0 10 20 30 40 50 60 70 80 90 Rho 66.5 deg Nadir Angle deg 67 65 60 53 45 36 27 18 9 0 Slant Range km 2769 1874 1343 1034 847 730 655 609 583 575 Satellite TX Transmission power dBW 2.0 SC Transmission line loss dB 0.5 Mismatch loss dB 0.5 Antenna gain dBi -0.2 0.3 1.6 3.0 4.3 4.9 5.4 6.1 6.7 7.3 Effective Isotropic Radiated Power dBW 0.8 1.3 2.6 4.0 5.3 5.9 6.4 7.1 7.7 8.3 Path Spacecraft antenna pointing loss dB 0.5 Path loss dB 179.5 176.1 173.2 170.9 169.2 167.9 166.9 166.3 165.9 165.8 Polarisation matching loss dB 0.0 Atmospheric Attenuation dB 14.7 6.2 3.6 2.5 2.0 1.7 1.5 1.4 1.3 1.3 Groundstation Rx Received power at ground station antenna dBW -193.89 -181.43 -174.64 -169.90 -166.33 -194.12 -162.49 -161.04 -160.01 -159.26 G/S antenna pointing loss dB 0.57 Boltzman's Constant dBW/K/Hz -228.60 Groundstation Figure of merit (G/T) dB/K 34.50 C/No at Rx input dBHz 68.65 81.10 87.90 92.63 96.20 98.41 100.04 101.49 102.53 103.27 Eb/N0 dB -7.74 4.71 11.51 16.24 19.81 22.02 23.65 25.10 26.14 26.88 C/N dB -10.90 1.56 8.35 13.09 16.66 18.87 20.50 21.95 22.99 23.73 SNR dB -12.64 -0.19 6.61 11.34 14.91 17.12 18.75 20.21 21.24 21.98 Illumination level dBW/m2 -139.04 -135.11 -130.91 -127.24 -124.21 -122.32 -120.88 -119.54 -118.57 -117.84 PFSD dBW/m2/Hz -218.58 -214.65 -210.46 -206.79 -203.75 -201.86 -200.42 -199.08 -198.11 -197.39 PFSD dBW/m2/4kHz -182.56 -178.63 -174.44 -170.76 -167.73 -165.84 -164.40 -163.06 -162.09 -161.37 Link Evaluation Link Margin for Eb/N0 for desired WER/FER dB -11.44 1.01 7.81 12.54 16.11 18.32 19.95 21.40 22.44 23.18 Shannon limit Mbps 6.883 87.233 223.275 348.300 450.033 514.423 562.403 605.392 636.032 658.051 Table 10 EXHIBIT 2 PAGE 14 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 12. Antenna Patterns and Beam Contours VHF/UHF: § POLARIZATION Linear § ORIENTATION (NB = NARROW BEAM) (EC=EARTH COVERAGE) EC § ANTENNA GAIN 0dB § ANTENNA BEAM WIDTH Omnidirectional Figure 4 EXHIBIT 2 PAGE 15 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 Figure 5 UHF transmit pattern EXHIBIT 2 PAGE 16 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 X-BAND § POLARIZATION Right Hand Circular Polarization § ORIENTATION (NB = NARROW BEAM) (EC=EARTH COVERAGE) NB § ANTENNA GAIN 7.8dB peak § ANTENNA BEAM WIDTH(3dB contour/HPBW): 41 degrees half angle , 82 degrees full beam Figure 6 Figure 7 EXHIBIT 2 PAGE 17 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE

FCC Form 442 Exhibit 2 File #: 0469-EX-CN-2017 13. A 24-hour contact for interference issues is provided below: UNCW/CMS: JOHN M. MORRISON 910-622-6101 (c) morrisonj@UNCW/CMS.edu EXHIBIT 2 PAGE 18 TH E UNIVERSITY OF NORTH CAROLINA AT WILMINGTON CENTER FOR MARINE SCIENCE


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