STA Application

2151-EX-ST-2018 Applicant Eligibility

Virgin Orbit, LLC

2018-12-26ELS_221724

Rev 1.0, 12/26/2018


Request for Special Temporary Authority
Virgin Orbit, LLC

Explanation of Experiment:
Virgin Orbit LLC (“Virgin Orbit”) is requesting “Special Temporary Authority (STA)” to operate an S-Band
Transmitter at 2262MHz. If 2262 MHz is unavailable Virgin Orbit is open to any frequency within 2200-
2290MHz band. The purpose of the experiment is to test the ability of Virgin Orbit’s Long Beach ground
station to track satellite launch vehicles. Long Beach ground station is receive only and is located at 4022
E Conant St., Long Beach, CA 90808. Virgin Orbit plans to use this ground station for tracking its satellite
launch vehicles. The plan is to fly a small manned aircraft with Quasonix transmitter and antennas around
Long Beach, CA and track that aircraft using the ground station in Long Beach, CA. The transmitter inside
the aircraft will transmit test data at the assigned frequency. Two different data rates will be tested at the
same assigned frequency. Two Antennas might be used in order to get better coverage, in such a case the
signal from the transmitter will be split between the antennas using a 3dB RF splitter.

Virgin Orbit is requesting an area of operation with a radius of 20 miles around Long Beach Airport (LGB).
The aircraft will fly within the requested area. Maximum altitude of the aircraft is 2500 ft. The transmitter
will stay on for the full duration of the flight, including pre-flight checkout, taxi, and takeoff/landing unless
restricted by FAA.

The aircraft is expected to be flown only 4 to 6 times over a period of 6 months after the STA license is
granted. Prior coordination will be made with DOD Western Area Frequency Coordinator before every
flight and anytime the transmitter is turned on.

                                                                                  Data Rate
EIRP (Includes Antenna Gain and Cable Losses)                         -8 dBm                    -8 dBm
Bandwidth                                                            4.99 MHz                  2.73 MHz

                                                                    SOQPSK-TG                 SOQPSK-TG
Modulation Scheme

                                                                     4M99G1W                  2M73G1W
Emissions Designator
Carrier Frequency Tolerance                                         +/- 20 ppm                +/- 20 ppm
Transmitter Manufacturer                                                         Quasonix
Transmitter Partnumber                                               QSX-VSR4-1111-20-80-04AB-VP-WV
Antenna Manufacturer and Part Number                                  South West Antennas (1065-028)
Antenna Gain                                                                      4.2dBic
Antenna Horizontal (AZ) Beamwidth                                              104 Degrees
Antenna Vertical (AZ) Beamwidth                                                 88 Degrees
Figure 1: Transmitter Specs

Location                                        Radius of Operation           Max Altitude
Long Beach Airport (LGB) (33.82, -118.151)            20 miles                 2,500 ft
Figure 2: Area of operation


Figure 3: Map showing area of operation


Stop Buzzer Point of Contact:

Umer Qureshi
RF Systems Engineer
(562)-706-5295
umer.qureshi@virginorbit.com



Document Created: 2018-12-26 15:24:38
Document Modified: 2018-12-26 15:24:38

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