Test Description

1704-EX-ST-2017 Applicant Eligibility

Virgin Orbit, LLC

2017-11-29ELS_201757

Rev 1.1, 11/28/2017 Request for Special Temporary Authority Virgin Orbit, LLC File Number: Explanation of Experiment: Virgin Orbit LLC (“Virgin Orbit”) is requesting “Special Temporary Authority (STA)” to operate an S-Band Transmitter in 2200-2290 MHz band. The request is for the ability to sweep across the 2200-2290MHz band. Virgin Orbit is designing a satellite launch vehicle (“Launcher One”) that will be air launched from a modified 747 airplane (“Cosmic Girl”). The purpose of requesting an STA license is to analyze the effects of Launcher One’s S-Band Telemetry transmitter on 747 radios. Frequencies Requested 2200-2290 MHz Table 1: Frequencies requested S-Band transmitter will be turned on along with 747 radios and the performance of all the radios will be measured. Antennas different from the one listed in Table 2 could be used for this test. The output power of the transmitter will be adjusted so as not to exceed the EIRP listed in Table 2 regardless of which antenna is used. Virgin Orbit is requesting a license to run the test at Long Beach Airport. Testing will be performed either inside a hangar or in an open area. All testing will be performed on the ground, the aircraft will not be flown during this test. We plan to start testing by Jan 2nd 2018, or as soon as the STA is granted. The test will take a few days to complete, S-Band Transmitter will be turned on for a few hours every day during the test. This test might not be performed on consecutive days and testing could be scattered over a period of six months. The transmitter will not be turned on without prior coordination with DOD Western Area Frequency Coordinator (WAFC). Virgin Orbit has shared the test application with DOD WAFC. We are currently in contact with Mr. Andrew Foltz at DOD WAFC, andrew.foltz@navy.mil , COM: 760-939-6948. Data Rate 5.4Mbps 2.7 Mbps Output Power 43dBm 43dBm EIRP (Includes losses and Antenna Gain) 49 dBm 49 dBm Bandwidth 7.02 MHz 3.51 MHz Modulation Scheme SOQPSK SOQPSK Emission Designator 7M02G2D 3M51G2D Carrier Frequency Tolerance +/- 20ppm +/- 20ppm Transmitter Manufacturer Quasonix Transmitter Part Number QSX-VSR4-1111-20-80-04AB-VP-WV Antenna Manufacturer Haigh-Farr Antenna Gain 8.5dBi Table 2: Transmitter Specs

Location All testing will be performed on the ground, the Long Beach Airport (LGB) (33.82, -118.151) aircraft will NOT be flown during this test. Table 3: Test Locations Stop Buzzer Point Of Contact: Umer Qureshi RF Systems Engineer (562)-706-5295 umer.qureshi@virginorbit.com


Document Created: 2017-11-29 15:54:30
Document Modified: 2017-11-29 15:54:30
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