Explanation of Experiment

1657-EX-ST-2018 Applicant Eligibility

Virgin Orbit

2018-09-23ELS_216545

Rev 2.1, 9/21/2018


Request for Special Temporary Authority
Virgin Orbit, LLC

Virgin Orbit is designing a satellite launch vehicle (“Launcher One”) that will be air launched from a
modified 747 airplane (“Cosmic Girl”). LauncherOne is an expendable, launch vehicle designed to place
small satellites into a wide range of Low Earth Orbits (LEO). STA License is requested to operate an S-Band
Transmitter on Launcher One at 2215 MHz for the upcoming first launch. STA is necessary to authorize
the use of S-Band transmitter for telemetry and video transmissions. The transmitter is located on 2nd
stage, it will be turned on few minutes before launch and will stay ON until the end of the mission. The
transmitter will also be turned on for RF checkouts at Mojave Air and Space Port. Data rate will be reduced
at some point in time during the mission.




Figure 1: Cosmic Girl (747) with Launcher One under the wing

747 will take-off from Mojave Air and Space Port in California with Launcher One in captive carry. Launcher
One will be dropped and launched in the Western Sea Range restricted airspace off Point Mugu, California.
Details of captive carry phase, launch and trajectory are being coordinated with FAA Commercial Space
Transportation Office (AST). Launch license to be provided by FAA-AST. Virgin Orbit is coordinating with
FAA-ATO (FAA-Air Traffic Control Organization) and LA Air Traffic Control Center (ZLA) for use of air space.

Captive carry flight and orbital trajectory details have been provided to the NTIA.


                                                                    Data Rate
Transmitter Output Power                           20 Watts                         20 Watts
EIRP                                                49 dBm                           44 dBm
Bandwidth                                          4.99 MHz                         2.73 MHz
Modulation Scheme                                 SOQPSK-TG                        SOQPSK-TG
Emissions Designator                              4M99G1W                          2M73G1W
Carrier Frequency Tolerance                       +/- 20 ppm                       +/- 20 ppm
Transmitter Manufacturer                                             Quasonix
Transmitter Partnumber                                    QSX-VSR4-1111-20-80-04AB-VP-WV
Antenna Manufacturer                                                 Haigh Farr
Antenna Part Number                                                   13155


Table 1: Transmitter Specs


                                        Latitude                         Longitude
Air and Space Port Mojave, Mojave, CA   35° 3' 24.4188"                  -118° 9' 28.1304"


Table 2: Takeoff Location




Stop Buzzer Point of Contact:
Umer Qureshi
RF Systems Engineer
(562)-706-5295
umer.qureshi@virginorbit.com



Document Created: 2018-09-23 11:43:23
Document Modified: 2018-09-23 11:43:23

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