Supporting Exhibit

1391-EX-ST-2019 Text Documents

Sierra Nevada Corporation

2019-08-21ELS_236191

UNCLASSIFIED Supporting Exhibit in Reference to FCC Special Temporary Authority Application File Number 1391-EX-ST-2019 PROPRIETARY STATEMENT: Information contained herein represents Proprietary Intellectual Property of Sierra Nevada Corporation and shall not be duplicated, used, or disclosed in whole or in part by any means, person, or organization for any purposes without express written permission. Neither receipt nor possession of this data, from any source, constitutes such permission. Infringement of these data rights may result in criminal and/or civil liability. WARNING: This document contains technical data that is subject to the International Traffic in Arms Regulations (ITAR) or the Export Administration Regulations (EAR). Export of this technical data to foreign persons or foreign entities inside or outside of the United States requires prior written authorization by the U. S. Department of State or the U.S. Department of Commerce. Violations of these export regulations are subject to severe criminal penalties. DESTRUCTION NOTICE: Destroy by any method that will prevent disclosure of contents or reconstruction of this document in accordance with the National Industrial Security Program Operating Manual (NISPOM). August 2, 2019 MFG IDENT CODE PROJECT CODE 4HVG5 18635 Jarkey Drive Hagerstown, MD 21742

Exhibit to Support STA File Number 1391-EX-ST-2019 REVISIONS Issues Descriptions Date Author TW/Checker Engineering A Initial Release i Use or disclosure of data contained on this sheet is subject to the restrictions on the title page.

Exhibit to Support STA File Number 1391-EX-ST-2019 TABLE OF CONTENTS Section/Title Page 1.0 INTRODUCTION ......................................................................................................................... 1 1.1 General ............................................................................................................................................................ 1 1.2 Current Needs.................................................................................................................................................. 1 2.0 TRANSMITTING EQUIPMENT ................................................................................................ 2 2.1 National Instruments 5840 VST ...................................................................................................................... 2 2.2 AR Amplifier................................................................................................................................................... 2 2.3 TLP-20 Antenna .............................................................................................................................................. 3 2.4 Scan Plan ......................................................................................................................................................... 3 2.5 Radiation frequency ........................................................................................................................................ 4 2.6 Signal characteristics ....................................................................................................................................... 4 3.0 TEST SITE ..................................................................................................................................... 4 4.0 ACRONYMS AND ABBREVIATIONS ...................................................................................... 5 APPENDIX A REQUESTED FREQUENCIES....................................................................................... 1 LIST OF FIGURES Figure/Title Page Figure 1: Scan Plan Illustration ..................................................................................................................................... 4 Figure 2: Test Location Radius...................................................................................................................................... 5 LIST OF TABLES Table/Title Page Table 1: Frequency Example ......................................................................................................................................... 1 Table 2: Amplifier Specifications .................................................................................................................................. 3 Table 3: Antenna Specifications .................................................................................................................................... 3 ii Use or disclosure of data contained on this sheet is subject to the restrictions on the title page.

Exhibit to Support STA File Number 1391-EX-ST-2019 1.0 INTRODUCTION 1.1 GENERAL Sierra Nevada Corporation (SNC), located at 18635 Jarkey Drive Hagerstown, MD. wishes to obtain a Special Temporary Authority (STA) from the Federal Communication Commission (FCC). Due to the unique nature of our testing and the number of frequencies requested, it is rationalized that obtaining an STA is the best approach. SNC is a Systems Integrator specializing in modifications to aircraft and producing Intelligence, Surveillance and Reconnaissance (ISR) systems for the United States Government as well as Foreign Military Sale. Final testing of the platform pre-delivery requires transmitting on known frequencies to exercise the installed equipment to validate performance requirements. Currently SNC has authority from the FCC for a limited number of frequencies under radio service AF- Aeronautical and Fixed utilizing call sign WQRI680 and WQRI681. The purpose of this exhibit is to document current needs, detail equipment that will be utilized, define the proposed test area and identify the frequency needs. 1.2 CURRENT NEEDS SNC was recently awarded a contract with the U.S. Army to modify seven King Air Guardrail Common Sensor (GRCS) Aircraft with upgraded systems under contract NRO000-15-C-0346. Part of this contract will require re-verification (calibration) of an existing system on the aircraft. This system is a receive only system that operates in a range from 20 MHz to 1 Ghz. To calibrate this system it will be necessary to transmit RF energy from a ground station to the aircraft while airborne across this wide span at known frequencies/amplitudes. The spectral energy received at the aircraft is then collected and analyzed to produce calibration tables used by this system during operational use. Due to the wideband nature of this system it will be necessary to transmit across the entire 20 MHz to 1 Ghz band at a frequency spacing of 1.3%. These frequencies will be rounded to the nearest 5 kHz. See Table 1 below: Table 1: Frequency Example Utilizing a 1.3% frequency spacing equates to transmitting on 323 frequencies. It will be necessary to transmit 8 frequencies simultaneously during these calibration events. Each group of eight 1 of 5 Use or disclosure of data contained on this sheet is subject to the restrictions on the title page.

Exhibit to Support STA File Number 1391-EX-ST-2019 frequencies is defined as a Set. There are approximately 40 frequency Sets planned to cover the span of 20 MHz to 1 Ghz. The transmit system when commanded by the operator will automatically start at frequency set one, transmit that set for 10 milliseconds, end transmission and transition to frequency set two, transmit on that set for 10 milliseconds, end transmission and so on until all forty sets are complete. At the completion of all forty sets the system will start back at frequency set one and repeat. It is anticipated that it will require one flight per day for two days. Each flight is estimated at four hours. 2.0 TRANSMITTING EQUIPMENT To automatically generate these frequency sets and to control the transmission length and timing SNC is required to utilize special equipment. For generation of individual frequencies SNC will utilize a National Instruments PXIe Chassis outfitted with a National Instruments 5840 Vector Signal Transceiver (VST). This device is used to consolidate frequency sets, allocate timing of each set and generate the RF signal set (that contains 8 individual frequencies). The output of the VST is then applied to the input of an AR amplifier which amplifies the signal set to 100 watts. When generating multiple frequencies within the set, the 100 watt output of the amp is divided up between the individual frequencies. The output of the amplifier is cabled to a log periodic transportable antenna that will be oriented in the vertical position. 2.1 NATIONAL INSTRUMENTS 5840 VST The signal generation of the system resides within the National Instruments PXIe-1082 Chassis. The chassis contains the following Modules: PXIe-8861 Embedded Controller, and a PXI-5480 Vector Signal Transceiver (VST). The Embedded Controller is a Windows 10 computer that executes the LabVIEW operating environment code for timing, control and generation of signal sets. The GPS timing module provides an external time source to all components within the chassis and allows stable synchronization between the aircraft and the ground station. SNC developed LabVIEW code provides the user interface. Using this code the operator can import pre- programmed signal sets and generate the frequencies necessary. The VST operates as the signal generator in this system, generating low level RF outputs that are then applied to the AR amplifier. 2.2 AR AMPLIFIER The Model 100U1000 is a solid-state, self-contained, air-cooled, broadband amplifier designed for applications where instantaneous bandwidth, high gain and linearity are required. The amplifier is rated for a frequency range of 10kHz to 1000 MHz and will provide 120W(typical) minimum output power. The maximum input rating for the amplifier is 1.0 mW. The amplifier receives an RF input from the VST, amplifies it accordingly and provides an amplified signal to the antenna to be transmitted over free space. Reference Table 2 for amplifier specifications. 100U1000 Electrical Specifications Specification Performance Frequency Range 10 kHz-1000 MHz Input Impedance 1.5:1 (50 Ohm) maximum Output Impedance 50 ohms nominal Gain @ max setting 50 dB minimum Flatness +/- 1.5 dB typical, 2.0 dB max 2 of 5 Use or disclosure of data contained on this sheet is subject to the restrictions on the title page.

Exhibit to Support STA File Number 1391-EX-ST-2019 Noise Figure 8.5 db typical Harmonic Distortion max @100W -20 dBc Harmonic Distortion typ. @100W -30 dBc Third Order Intercept 60 dBm typical Table 2: Amplifier Specifications 2.3 TLP-20 ANTENNA The TLP-20 is a tactical log periodic antenna that cover the 20-1000 MHz frequency range and is designed for transmit and receive purposes. The antenna uses a three piece boom for quick assembly in the field and can be used in the vertical or horizontal mode. In this application it will be used in the vertical polarization mode. The antenna will provide 4-8 dbi of gain to the system. The antenna will be fastened to a mast assembly mounted on a rotator. The rotator will position the antenna to automatically track the flight path of the aircraft. This is to keep the main beam of the antenna focused during the test event. The height of the antenna above ground level is 5.2 meters (17 feet). Reference Table 3 below for electrical specification of the antenna. TLP-20 Electrical Specifications Specification Performance Frequency Range 20-1000 MHz VSWR 2.0:1 (50 Ohm) typical Gain 4-8 dbi Polarization Linear Vertical -3 dB Beamwidth 40-90 degrees Horizontal -3 dB Beamwidth 70-140 degrees Power Input 200 Watts Table 3: Antenna Specifications 2.4 SCAN PLAN The ground calibration source transmits multiple narrowband tones at once based upon the frequency set, while the airborne sensor collects the same multiple frequencies within a wideband tune. This is then repeated for the next set of frequencies working up through the 20-1000 MHz range. The system will then repeat this loop as the aircraft flies a predetermined flight path and RF data is collected at different arrival angles with respect to the ground station. The airborne system will collect frequency data over a 25 millisecond period, however the ground station will only be transmitting for 10 milliseconds within that period. The External Collect bars depicted below in green are the only times that ground station will be radiating RF energy. With 40 frequency sets (each containing 8 frequencies), it is anticipated that one full cycle of this plan will take 1 second. This will, however have to be repeated for a period of 4 hours to collect the necessary data. 3 of 5 Use or disclosure of data contained on this sheet is subject to the restrictions on the title page.

Exhibit to Support STA File Number 1391-EX-ST-2019 Figure 1: Scan Plan Illustration 2.5 RADIATION FREQUENCY SNC is under contract to modify seven (7) aircraft over the next two years. It is anticipated that this testing will occur on each aircraft over a period of two days approximately 120 days apart. It is anticipated that the total number of days necessary to complete this testing will be fourteen (14). 2.6 SIGNAL CHARACTERISTICS SNC will generate signals across the band of 20 MHz to 1000 MHz. Up to eight individual carriers will be generated for each frequency set. Approximately forty frequency sets will be generated for 10 milliseconds each. The approximate power level of each carrier signal will be 10 W with an individual signal bandwidth of 5 kHz. 3.0 TEST SITE The ground transmit system will be housed in an enclosed trailer making it a mobile platform. This will allow SNC to perform calibration testing away from populated areas. At this time, an exact test location has not been identified. SNC is seeking a STA, which would allow testing within a 150 kilometer radius of the SNC facility at 18635 Jarkey Drive, Hagerstown, MD. 21742. 4 of 5 Use or disclosure of data contained on this sheet is subject to the restrictions on the title page.

Exhibit to Support STA File Number 1391-EX-ST-2019 Figure 2: Test Location Radius 4.0 ACRONYMS AND ABBREVIATIONS Acronym/Abbreviation Description FCC Federal Communication Commission GPS Global Positioning System GRCS Guardrail Common Sensor ISR Intelligence, Surveillance and Reconnaissance RF Radio Frequency SNC Sierra Nevada Corporation STA Special Temporary Authority VST Vector Signal Transceiver 5 of 5 Use or disclosure of data contained on this sheet is subject to the restrictions on the title page.

Exhibit to Support STA File Number 1391-EX-ST-2019 APPENDIX A REQUESTED FREQUENCIES The frequencies listed within this Appendix are based upon a 1.3% spacing only without regard to the de-conflictions that will be necessary to avoid interference in excluded frequencies as outlined in the National Telecommunications and Information Administration, Manual of Regulations & Procedures for Federal Radio Frequency Management Frequency Frequency Frequency Frequency # Power BW # Power BW # Power BW # Power BW (MHz) (MHz) (MHz) (MHz) 1 20 10 W 5 kHz 26 27.62 10 W 5 kHz 51 38.165 10 W 5 kHz 76 52.705 10 W 5 kHz 2 20.26 10 W 5 kHz 27 27.98 10 W 5 kHz 52 38.66 10 W 5 kHz 77 53.39 10 W 5 kHz 3 20.525 10 W 5 kHz 28 28.345 10 W 5 kHz 53 39.165 10 W 5 kHz 78 54 10 W 5 kHz 4 20.79 10 W 5 kHz 29 28.715 10 W 5 kHz 54 39.675 10 W 5 kHz 79 54.79 10 W 5 kHz 5 21.06 10 W 5 kHz 30 29.09 10 W 5 kHz 55 40.19 10 W 5 kHz 80 55.5 10 W 5 kHz 6 21.335 10 W 5 kHz 31 29.47 10 W 5 kHz 56 40.71 10 W 5 kHz 81 56.22 10 W 5 kHz 7 21.61 10 W 5 kHz 32 29.855 10 W 5 kHz 57 41.24 10 W 5 kHz 82 56.95 10 W 5 kHz 8 21.89 10 W 5 kHz 33 30.245 10 W 5 kHz 58 41.775 10 W 5 kHz 83 57.69 10 W 5 kHz 9 22.175 10 W 5 kHz 34 30.64 10 W 5 kHz 59 42.32 10 W 5 kHz 84 58.44 10 W 5 kHz 10 22.465 10 W 5 kHz 35 31.04 10 W 5 kHz 60 42.87 10 W 5 kHz 85 59.2 10 W 5 kHz 11 22.755 10 W 5 kHz 36 31.445 10 W 5 kHz 61 43.425 10 W 5 kHz 86 60 10 W 5 kHz 12 23.05 10 W 5 kHz 37 31.855 10 W 5 kHz 62 43.99 10 W 5 kHz 87 60.75 10 W 5 kHz 13 23.35 10 W 5 kHz 38 32.27 10 W 5 kHz 63 44.56 10 W 5 kHz 88 61.54 10 W 5 kHz 14 23.655 10 W 5 kHz 39 32.69 10 W 5 kHz 64 45.14 10 W 5 kHz 89 62.34 10 W 5 kHz 15 23.965 10 W 5 kHz 40 33.115 10 W 5 kHz 65 45.725 10 W 5 kHz 90 63.15 10 W 5 kHz 16 24.275 10 W 5 kHz 41 33.545 10 W 5 kHz 66 46.32 10 W 5 kHz 91 63.97 10 W 5 kHz 17 24.59 10 W 5 kHz 42 33.98 10 W 5 kHz 67 46.92 10 W 5 kHz 92 64.8 10 W 5 kHz 18 24.91 10 W 5 kHz 43 34.42 10 W 5 kHz 68 47.53 10 W 5 kHz 93 65.64 10 W 5 kHz 19 25.235 10 W 5 kHz 44 34.865 10 W 5 kHz 69 48.15 10 W 5 kHz 94 66 10 W 5 kHz 20 25.565 10 W 5 kHz 45 35.32 10 W 5 kHz 70 48.775 10 W 5 kHz 95 67.36 10 W 5 kHz 21 25.895 10 W 5 kHz 46 35.78 10 W 5 kHz 71 49.41 10 W 5 kHz 96 68.235 10 W 5 kHz 22 26.23 10 W 5 kHz 47 36.245 10 W 5 kHz 72 50.05 10 W 5 kHz 97 69.12 10 W 5 kHz 23 26.57 10 W 5 kHz 48 36.715 10 W 5 kHz 73 50.7 10 W 5 kHz 98 70.02 10 W 5 kHz 24 26.915 10 W 5 kHz 49 37.19 10 W 5 kHz 74 51.36 10 W 5 kHz 99 70.93 10 W 5 kHz 25 27.265 10 W 5 kHz 50 37.675 10 W 5 kHz 75 52.03 10 W 5 kHz 100 72 10 W 5 kHz Use or disclosure of data contained on this sheet is subject to the restrictions on the title page. Page A1 of A3

Exhibit to Support STA File Number 1391-EX-ST-2019 Frequency Frequency Frequency Frequency # Power BW # Power BW # Power BW # Power BW (MHz) (MHz) (MHz) (MHz) 101 72.785 10 W 5 kHz 126 100.6 10 W 5 kHz 151 138.835 10 W 5 kHz 176 192 10 W 5 kHz 102 73.73 10 W 5 kHz 127 101.8 10 W 5 kHz 152 140.64 10 W 5 kHz 177 194.23 10 W 5 kHz 103 74.69 10 W 5 kHz 128 103.2 10 W 5 kHz 153 142.47 10 W 5 kHz 178 196.755 10 W 5 kHz 104 75.66 10 W 5 kHz 129 104.6 10 W 5 kHz 154 144.32 10 W 5 kHz 179 198 10 W 5 kHz 105 76 10 W 5 kHz 130 105.8 10 W 5 kHz 155 146.195 10 W 5 kHz 180 201.905 10 W 5 kHz 106 77.64 10 W 5 kHz 131 107.2 10 W 5 kHz 156 148.095 10 W 5 kHz 181 204 10 W 5 kHz 107 78.65 10 W 5 kHz 132 108.6 10 W 5 kHz 157 150.02 10 W 5 kHz 182 207.19 10 W 5 kHz 108 79.67 10 W 5 kHz 133 110.04 10 W 5 kHz 158 151.97 10 W 5 kHz 183 210 10 W 5 kHz 109 80.705 10 W 5 kHz 134 111.47 10 W 5 kHz 159 153.945 10 W 5 kHz 184 212.615 10 W 5 kHz 110 81.755 10 W 5 kHz 135 112.92 10 W 5 kHz 160 155.945 10 W 5 kHz 185 216 10 W 5 kHz 111 82 10 W 5 kHz 136 114.39 10 W 5 kHz 161 157.97 10 W 5 kHz 186 218.18 10 W 5 kHz 112 83.895 10 W 5 kHz 137 115.875 10 W 5 kHz 162 160.025 10 W 5 kHz 187 221.015 10 W 5 kHz 113 84.985 10 W 5 kHz 138 117.38 10 W 5 kHz 163 162.105 10 W 5 kHz 188 223.89 10 W 5 kHz 114 86.09 10 W 5 kHz 139 118.905 10 W 5 kHz 164 164.21 10 W 5 kHz 189 226.8 10 W 5 kHz 115 87.21 10 W 5 kHz 140 120.45 10 W 5 kHz 165 166.345 10 W 5 kHz 190 229.75 10 W 5 kHz 116 88 10 W 5 kHz 141 122.015 10 W 5 kHz 166 168.505 10 W 5 kHz 191 232.735 10 W 5 kHz 117 89.4 10 W 5 kHz 142 123.6 10 W 5 kHz 167 170.695 10 W 5 kHz 192 235.76 10 W 5 kHz 118 90.6 10 W 5 kHz 143 125.205 10 W 5 kHz 168 172.915 10 W 5 kHz 193 238.825 10 W 5 kHz 119 91.8 10 W 5 kHz 144 126.835 10 W 5 kHz 169 174 10 W 5 kHz 194 241.93 10 W 5 kHz 120 93 10 W 5 kHz 145 128.485 10 W 5 kHz 170 177.44 10 W 5 kHz 195 245.075 10 W 5 kHz 121 94.2 10 W 5 kHz 146 130.155 10 W 5 kHz 171 180 10 W 5 kHz 196 248.26 10 W 5 kHz 122 95.4 10 W 5 kHz 147 131.845 10 W 5 kHz 172 182.08 10 W 5 kHz 197 251.485 10 W 5 kHz 123 96.8 10 W 5 kHz 148 133.56 10 W 5 kHz 173 184.445 10 W 5 kHz 198 254.755 10 W 5 kHz 124 98 10 W 5 kHz 149 135.295 10 W 5 kHz 174 186 10 W 5 kHz 199 258.065 10 W 5 kHz 125 99.2 10 W 5 kHz 150 137.055 10 W 5 kHz 175 189.275 10 W 5 kHz 200 261.42 10 W 5 kHz Use or disclosure of data contained on this sheet is subject to the restrictions on the title page. Page A2 of A3

Exhibit to Support STA File Number 1391-EX-ST-2019 Frequency Frequency Frequency Frequency # Power BW # Power BW # Power BW # Power BW (MHz) (MHz) (MHz) (MHz) 201 264.82 10 W 5 kHz 233 405.57 10 W 5 kHz 265 590 10 W 5 kHz 297 782 10 W 5 kHz 202 268.265 10 W 5 kHz 234 410.84 10 W 5 kHz 266 596 10 W 5 kHz 298 788 10 W 5 kHz 203 271.75 10 W 5 kHz 235 416.18 10 W 5 kHz 267 602 10 W 5 kHz 299 794 10 W 5 kHz 204 278.865 10 W 5 kHz 236 421.59 10 W 5 kHz 268 608 10 W 5 kHz 300 800 10 W 5 kHz 205 282.49 10 W 5 kHz 237 427.07 10 W 5 kHz 269 614 10 W 5 kHz 301 806 10 W 5 kHz 206 286.16 10 W 5 kHz 238 432.62 10 W 5 kHz 270 620 10 W 5 kHz 302 812 10 W 5 kHz 207 289.88 10 W 5 kHz 239 438.245 10 W 5 kHz 271 626 10 W 5 kHz 303 824 10 W 5 kHz 208 293.65 10 W 5 kHz 240 443.94 10 W 5 kHz 272 632 10 W 5 kHz 304 830 10 W 5 kHz 209 297.465 10 W 5 kHz 241 449.71 10 W 5 kHz 273 638 10 W 5 kHz 305 836 10 W 5 kHz 210 301.33 10 W 5 kHz 242 455.555 10 W 5 kHz 274 644 10 W 5 kHz 306 842 10 W 5 kHz 211 305.245 10 W 5 kHz 243 461.475 10 W 5 kHz 275 650 10 W 5 kHz 307 848 10 W 5 kHz 212 309.215 10 W 5 kHz 244 467.475 10 W 5 kHz 276 656 10 W 5 kHz 308 854 10 W 5 kHz 213 313.235 10 W 5 kHz 245 470 10 W 5 kHz 277 662 10 W 5 kHz 309 860 10 W 5 kHz 214 317.305 10 W 5 kHz 246 476 10 W 5 kHz 278 668 10 W 5 kHz 310 866 10 W 5 kHz 215 321.43 10 W 5 kHz 247 482 10 W 5 kHz 279 674 10 W 5 kHz 311 872 10 W 5 kHz 216 325.61 10 W 5 kHz 248 488 10 W 5 kHz 280 680 10 W 5 kHz 312 878 10 W 5 kHz 217 329.845 10 W 5 kHz 249 494 10 W 5 kHz 281 686 10 W 5 kHz 313 884 10 W 5 kHz 218 334.135 10 W 5 kHz 250 500 10 W 5 kHz 282 692 10 W 5 kHz 314 890 10 W 5 kHz 219 338.48 10 W 5 kHz 251 506 10 W 5 kHz 283 698 10 W 5 kHz 315 903.31 10 W 5 kHz 220 342.88 10 W 5 kHz 252 512 10 W 5 kHz 284 704 10 W 5 kHz 316 915.055 10 W 5 kHz 221 347.335 10 W 5 kHz 253 518 10 W 5 kHz 285 710 10 W 5 kHz 317 926.95 10 W 5 kHz 222 351.85 10 W 5 kHz 254 524 10 W 5 kHz 286 716 10 W 5 kHz 318 939 10 W 5 kHz 223 356.425 10 W 5 kHz 255 530 10 W 5 kHz 287 722 10 W 5 kHz 319 951.205 10 W 5 kHz 224 361.06 10 W 5 kHz 256 536 10 W 5 kHz 288 728 10 W 5 kHz 320 963.57 10 W 5 kHz 225 365.755 10 W 5 kHz 257 542 10 W 5 kHz 289 734 10 W 5 kHz 321 976.095 10 W 5 kHz 226 370.51 10 W 5 kHz 258 548 10 W 5 kHz 290 740 10 W 5 kHz 322 988.785 10 W 5 kHz 227 375.325 10 W 5 kHz 259 554 10 W 5 kHz 291 746 10 W 5 kHz 323 1001.64 10 W 5 kHz 228 380.205 10 W 5 kHz 260 560 10 W 5 kHz 292 752 10 W 5 kHz 229 385.15 10 W 5 kHz 261 566 10 W 5 kHz 293 758 10 W 5 kHz 230 390.155 10 W 5 kHz 262 572 10 W 5 kHz 294 764 10 W 5 kHz 231 395.225 10 W 5 kHz 263 578 10 W 5 kHz 295 770 10 W 5 kHz 232 400.365 10 W 5 kHz 264 584 10 W 5 kHz 296 776 10 W 5 kHz Use or disclosure of data contained on this sheet is subject to the restrictions on the title page. Page A3 of A3


Document Created: 2019-08-21 14:52:01
Document Modified: 2019-08-21 14:52:01
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